[Tarantool-patches] [PATCH v4 5/5] sql: properly check arguments of functions

imeevma at tarantool.org imeevma at tarantool.org
Mon Jul 13 08:33:12 MSK 2020


After this patch, the function arguments will be checked using ApplyType
opcode before they are passed to the function. This means that the rules
for implicitly casting values ​​that were specified as arguments are
defined by this opcode.

Closes #4159
---
 src/box/sql/expr.c                          |    5 +
 src/box/sql/func.c                          |  360 +++-
 src/box/sql/select.c                        |   31 +
 src/box/sql/sqlInt.h                        |   32 +
 src/box/sql/vdbe.c                          |   12 +-
 test/sql-tap/cse.test.lua                   |    8 +-
 test/sql-tap/func.test.lua                  |   48 +-
 test/sql-tap/orderby1.test.lua              |    2 +-
 test/sql-tap/position.test.lua              |    6 +-
 test/sql/boolean.result                     |   32 +-
 test/sql/gh-4159-function-argumens.result   | 2131 +++++++++++++++++--
 test/sql/gh-4159-function-argumens.test.sql |  272 +++
 test/sql/types.result                       |   76 +-
 test/sql/types.test.lua                     |    2 +-
 14 files changed, 2584 insertions(+), 433 deletions(-)

diff --git a/src/box/sql/expr.c b/src/box/sql/expr.c
index 7aee240a3..aa5477c6a 100644
--- a/src/box/sql/expr.c
+++ b/src/box/sql/expr.c
@@ -4104,6 +4104,11 @@ sqlExprCodeTarget(Parse * pParse, Expr * pExpr, int target)
 			} else {
 				r1 = 0;
 			}
+			if (func->def->language == FUNC_LANGUAGE_SQL_BUILTIN) {
+				struct func_sql_builtin *f =
+					(struct func_sql_builtin *)func;
+				sql_emit_func_types(v, &f->args, r1, nFarg);
+			}
 			if (sql_func_flag_is_set(func, SQL_FUNC_NEEDCOLL)) {
 				sqlVdbeAddOp4(v, OP_CollSeq, 0, 0, 0,
 						  (char *)coll, P4_COLLSEQ);
diff --git a/src/box/sql/func.c b/src/box/sql/func.c
index 9d4c26081..66edc3792 100644
--- a/src/box/sql/func.c
+++ b/src/box/sql/func.c
@@ -459,17 +459,10 @@ static void
 lengthFunc(sql_context * context, int argc, sql_value ** argv)
 {
 	int len;
-
 	assert(argc == 1);
 	UNUSED_PARAMETER(argc);
 	switch (sql_value_type(argv[0])) {
-	case MP_BIN:
-	case MP_ARRAY:
-	case MP_MAP:
-	case MP_INT:
-	case MP_UINT:
-	case MP_BOOL:
-	case MP_DOUBLE:{
+	case MP_BIN: {
 			sql_result_uint(context, sql_value_bytes(argv[0]));
 			break;
 		}
@@ -482,6 +475,7 @@ lengthFunc(sql_context * context, int argc, sql_value ** argv)
 			break;
 		}
 	default:{
+		assert(sql_value_type(argv[0]) == MP_NIL);
 			sql_result_null(context);
 			break;
 		}
@@ -510,32 +504,16 @@ absFunc(sql_context * context, int argc, sql_value ** argv)
 		sql_result_uint(context, -value);
 		break;
 	}
-	case MP_NIL:{
-			/* IMP: R-37434-19929 Abs(X) returns NULL if X is NULL. */
-			sql_result_null(context);
-			break;
-		}
-	case MP_BOOL:
-	case MP_BIN:
-	case MP_ARRAY:
-	case MP_MAP: {
-		diag_set(ClientError, ER_INCONSISTENT_TYPES, "number",
-			 mem_type_to_str(argv[0]));
-		context->is_aborted = true;
-		return;
+	case MP_DOUBLE: {
+		double rVal = sql_value_double(argv[0]);
+		if (rVal < 0)
+			rVal = -rVal;
+		sql_result_double(context, rVal);
+		break;
 	}
-	default:{
-			/* Because sql_value_double() returns 0.0 if the argument is not
-			 * something that can be converted into a number, we have:
-			 * IMP: R-01992-00519 Abs(X) returns 0.0 if X is a string or blob
-			 * that cannot be converted to a numeric value.
-			 */
-			double rVal = sql_value_double(argv[0]);
-			if (rVal < 0)
-				rVal = -rVal;
-			sql_result_double(context, rVal);
-			break;
-		}
+	default:
+		assert(sql_value_type(argv[0]) == MP_NIL);
+		sql_result_null(context);
 	}
 }
 
@@ -561,22 +539,8 @@ position_func(struct sql_context *context, int argc, struct Mem **argv)
 
 	if (haystack_type == MP_NIL || needle_type == MP_NIL)
 		return;
-	/*
-	 * Position function can be called only with string
-	 * or blob params.
-	 */
-	struct Mem *inconsistent_type_arg = NULL;
-	if (needle_type != MP_STR && needle_type != MP_BIN)
-		inconsistent_type_arg = needle;
-	if (haystack_type != MP_STR && haystack_type != MP_BIN)
-		inconsistent_type_arg = haystack;
-	if (inconsistent_type_arg != NULL) {
-		diag_set(ClientError, ER_INCONSISTENT_TYPES,
-			 "text or varbinary",
-			 mem_type_to_str(inconsistent_type_arg));
-		context->is_aborted = true;
-		return;
-	}
+	assert(needle_type == MP_STR || needle_type == MP_BIN);
+	assert(haystack_type == MP_STR || haystack_type == MP_BIN);
 	/*
 	 * Both params of Position function must be of the same
 	 * type.
@@ -731,6 +695,9 @@ substrFunc(sql_context * context, int argc, sql_value ** argv)
 		return;
 	}
 	p0type = sql_value_type(argv[0]);
+	assert(p0type == MP_NIL || p0type == MP_STR || p0type == MP_BIN);
+	assert(sql_value_type(argv[1]) == MP_INT ||
+	       sql_value_type(argv[1]) == MP_UINT);
 	p1 = sql_value_int(argv[1]);
 	if (p0type == MP_BIN) {
 		len = sql_value_bytes(argv[0]);
@@ -747,6 +714,8 @@ substrFunc(sql_context * context, int argc, sql_value ** argv)
 			len = sql_utf8_char_count(z, sql_value_bytes(argv[0]));
 	}
 	if (argc == 3) {
+		assert(sql_value_type(argv[2]) == MP_INT ||
+		       sql_value_type(argv[2]) == MP_UINT);
 		p2 = sql_value_int(argv[2]);
 		if (p2 < 0) {
 			p2 = -p2;
@@ -811,6 +780,8 @@ substrFunc(sql_context * context, int argc, sql_value ** argv)
 				      SQL_TRANSIENT);
 	}
 }
+enum field_type func_substr_types[] = {FIELD_TYPE_STRING, FIELD_TYPE_INTEGER,
+				       FIELD_TYPE_INTEGER};
 
 /*
  * Implementation of the round() function
@@ -824,19 +795,14 @@ roundFunc(sql_context * context, int argc, sql_value ** argv)
 	if (argc == 2) {
 		if (sql_value_is_null(argv[1]))
 			return;
+		assert(sql_value_type(argv[1]) == MP_UINT);
 		n = sql_value_int(argv[1]);
 		if (n < 0)
 			n = 0;
 	}
 	if (sql_value_is_null(argv[0]))
 		return;
-	enum mp_type mp_type = sql_value_type(argv[0]);
-	if (mp_type_is_bloblike(mp_type)) {
-		diag_set(ClientError, ER_SQL_TYPE_MISMATCH,
-			 sql_value_to_diag_str(argv[0]), "numeric");
-		context->is_aborted = true;
-		return;
-	}
+	assert(sql_value_type(argv[0]) == MP_DOUBLE);
 	r = sql_value_double(argv[0]);
 	/* If Y==0 and X will fit in a 64-bit int,
 	 * handle the rounding directly,
@@ -852,6 +818,7 @@ roundFunc(sql_context * context, int argc, sql_value ** argv)
 	}
 	sql_result_double(context, r);
 }
+enum field_type func_round_types[] = {FIELD_TYPE_DOUBLE, FIELD_TYPE_UNSIGNED};
 
 /*
  * Allocate nByte bytes of space using sqlMalloc(). If the
@@ -891,13 +858,9 @@ case_type##ICUFunc(sql_context *context, int argc, sql_value **argv)   \
 	const char *z2;                                                        \
 	int n;                                                                 \
 	UNUSED_PARAMETER(argc);                                                \
-	int arg_type = sql_value_type(argv[0]);                                \
-	if (mp_type_is_bloblike(arg_type)) {                                   \
-		diag_set(ClientError, ER_INCONSISTENT_TYPES, "text",           \
-			 "varbinary");                                         \
-		context->is_aborted = true;                                    \
-		return;                                                        \
-	}                                                                      \
+	assert(sql_value_type(argv[0]) == MP_NIL ||                            \
+	       sql_value_type(argv[0]) == MP_STR ||                            \
+	       sql_value_type(argv[0]) == MP_BIN);                             \
 	z2 = (char *)sql_value_text(argv[0]);                              \
 	n = sql_value_bytes(argv[0]);                                      \
 	/*                                                                     \
@@ -949,6 +912,7 @@ ICU_CASE_CONVERT(Upper);
  * is.  We might as well use the "version()" function as a substitute.
  */
 #define noopFunc sql_func_version /* Substitute function - never called */
+enum field_type func_likelihood_types[] = {FIELD_TYPE_ANY, FIELD_TYPE_DOUBLE};
 
 /*
  * Implementation of random().  Return a random integer.
@@ -973,12 +937,8 @@ randomBlob(sql_context * context, int argc, sql_value ** argv)
 	unsigned char *p;
 	assert(argc == 1);
 	UNUSED_PARAMETER(argc);
-	if (mp_type_is_bloblike(sql_value_type(argv[0]))) {
-		diag_set(ClientError, ER_SQL_TYPE_MISMATCH,
-			 sql_value_to_diag_str(argv[0]), "numeric");
-		context->is_aborted = true;
-		return;
-	}
+	assert(sql_value_type(argv[0]) == MP_NIL ||
+	       sql_value_type(argv[0]) == MP_UINT);
 	n = sql_value_int(argv[0]);
 	if (n < 1)
 		return;
@@ -1218,17 +1178,9 @@ likeFunc(sql_context *context, int argc, sql_value **argv)
 	int rhs_type = sql_value_type(argv[0]);
 	int lhs_type = sql_value_type(argv[1]);
 
-	if (lhs_type != MP_STR || rhs_type != MP_STR) {
-		if (lhs_type == MP_NIL || rhs_type == MP_NIL)
-			return;
-		char *inconsistent_type = rhs_type != MP_STR ?
-					  mem_type_to_str(argv[0]) :
-					  mem_type_to_str(argv[1]);
-		diag_set(ClientError, ER_INCONSISTENT_TYPES, "text",
-			 inconsistent_type);
-		context->is_aborted = true;
+	if (lhs_type == MP_NIL || rhs_type == MP_NIL)
 		return;
-	}
+	assert(lhs_type == MP_STR && rhs_type == MP_STR);
 	const char *zB = (const char *) sql_value_text(argv[0]);
 	const char *zA = (const char *) sql_value_text(argv[1]);
 	const char *zB_end = zB + sql_value_bytes(argv[0]);
@@ -1252,6 +1204,8 @@ likeFunc(sql_context *context, int argc, sql_value **argv)
 	assert(zB == (const char *) sql_value_text(argv[0]));
 
 	if (argc == 3) {
+		assert(sql_value_type(argv[2]) == MP_NIL ||
+		       sql_value_type(argv[2]) == MP_STR);
 		/*
 		 * The escape character string must consist of a
 		 * single UTF-8 character. Otherwise, return an
@@ -1432,6 +1386,10 @@ quoteFunc(sql_context * context, int argc, sql_value ** argv)
 static void
 unicodeFunc(sql_context * context, int argc, sql_value ** argv)
 {
+	assert(argc == 1);
+	assert(sql_value_type(argv[0]) == MP_NIL ||
+	       sql_value_type(argv[0]) == MP_STR ||
+	       sql_value_type(argv[0]) == MP_BIN);
 	const unsigned char *z = sql_value_text(argv[0]);
 	(void)argc;
 	if (z && z[0])
@@ -1456,10 +1414,11 @@ charFunc(sql_context * context, int argc, sql_value ** argv)
 	for (i = 0; i < argc; i++) {
 		uint64_t x;
 		unsigned c;
-		if (sql_value_type(argv[i]) == MP_INT)
-			x = 0xfffd;
-		else
-			x = sql_value_uint64(argv[i]);
+		enum mp_type type = sql_value_type(argv[i]);
+		if (type == MP_NIL)
+			return;
+		assert(sql_value_type(argv[i]) == MP_UINT);
+		x = sql_value_uint64(argv[i]);
 		if (x > 0x10ffff)
 			x = 0xfffd;
 		c = (unsigned)(x & 0x1fffff);
@@ -1493,6 +1452,9 @@ hexFunc(sql_context * context, int argc, sql_value ** argv)
 	const unsigned char *pBlob;
 	char *zHex, *z;
 	assert(argc == 1);
+	assert(sql_value_type(argv[0]) == MP_NIL ||
+	       sql_value_type(argv[0]) == MP_STR ||
+	       sql_value_type(argv[0]) == MP_BIN);
 	UNUSED_PARAMETER(argc);
 	pBlob = sql_value_blob(argv[0]);
 	n = sql_value_bytes(argv[0]);
@@ -1518,6 +1480,8 @@ zeroblobFunc(sql_context * context, int argc, sql_value ** argv)
 	i64 n;
 	assert(argc == 1);
 	UNUSED_PARAMETER(argc);
+	assert(sql_value_type(argv[0]) == MP_NIL ||
+	       sql_value_type(argv[0]) == MP_UINT);
 	n = sql_value_int64(argv[0]);
 	if (n < 0)
 		n = 0;
@@ -1550,6 +1514,15 @@ replaceFunc(sql_context * context, int argc, sql_value ** argv)
 
 	assert(argc == 3);
 	UNUSED_PARAMETER(argc);
+	assert(sql_value_type(argv[0]) == MP_NIL ||
+	       sql_value_type(argv[0]) == MP_STR ||
+	       sql_value_type(argv[0]) == MP_BIN);
+	assert(sql_value_type(argv[1]) == MP_NIL ||
+	       sql_value_type(argv[1]) == MP_STR ||
+	       sql_value_type(argv[1]) == MP_BIN);
+	assert(sql_value_type(argv[2]) == MP_NIL ||
+	       sql_value_type(argv[2]) == MP_STR ||
+	       sql_value_type(argv[2]) == MP_BIN);
 	zStr = sql_value_text(argv[0]);
 	if (zStr == 0)
 		return;
@@ -1858,13 +1831,9 @@ soundexFunc(sql_context * context, int argc, sql_value ** argv)
 		1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0,
 	};
 	assert(argc == 1);
-	enum mp_type mp_type = sql_value_type(argv[0]);
-	if (mp_type_is_bloblike(mp_type)) {
-		diag_set(ClientError, ER_SQL_TYPE_MISMATCH,
-			 sql_value_to_diag_str(argv[0]), "text");
-		context->is_aborted = true;
-		return;
-	}
+	assert(sql_value_type(argv[0]) == MP_NIL ||
+	       sql_value_type(argv[0]) == MP_STR ||
+	       sql_value_type(argv[0]) == MP_BIN);
 	zIn = (u8 *) sql_value_text(argv[0]);
 	if (zIn == 0)
 		zIn = (u8 *) "";
@@ -1931,15 +1900,7 @@ sum_step(struct sql_context *context, int argc, sql_value **argv)
 	int type = sql_value_type(argv[0]);
 	if (type == MP_NIL || p == NULL)
 		return;
-	if (type != MP_DOUBLE && type != MP_INT && type != MP_UINT) {
-		if (mem_apply_numeric_type(argv[0]) != 0) {
-			diag_set(ClientError, ER_SQL_TYPE_MISMATCH,
-				 sql_value_to_diag_str(argv[0]), "number");
-			context->is_aborted = true;
-			return;
-		}
-		type = sql_value_type(argv[0]);
-	}
+	assert(mp_type_is_numeric(type));
 	p->cnt++;
 	if (type == MP_INT || type == MP_UINT) {
 		int64_t v = sql_value_int64(argv[0]);
@@ -2230,6 +2191,9 @@ static struct {
 	int param_count;
 	uint32_t min_count;
 	uint32_t max_count;
+	enum field_type *types;
+	enum field_type recurrent_type;
+	bool is_blob_like_str;
 	enum field_type returns;
 	enum func_aggregate aggregate;
 	bool export_to_sql;
@@ -2238,6 +2202,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_NUMBER,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_NUMBER,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2250,6 +2217,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_NUMBER,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_NUMBER,
 	 .is_deterministic = false,
 	 .aggregate = FUNC_AGGREGATE_GROUP,
@@ -2264,6 +2234,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2276,6 +2249,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2286,6 +2262,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = SQL_MAX_FUNCTION_ARG,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_UNSIGNED,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_STRING,
 	 .is_deterministic = true,
 	 .aggregate = FUNC_AGGREGATE_NONE,
@@ -2298,6 +2277,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_STRING,
+	 .is_blob_like_str = true,
 	 .returns = FIELD_TYPE_INTEGER,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2310,6 +2292,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_STRING,
+	 .is_blob_like_str = true,
 	 .returns = FIELD_TYPE_INTEGER,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2322,6 +2307,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 2,
 	 .max_count = SQL_MAX_FUNCTION_ARG,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_SCALAR,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2334,6 +2322,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_INTEGER,
 	 .aggregate = FUNC_AGGREGATE_GROUP,
 	 .is_deterministic = false,
@@ -2348,6 +2339,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2360,6 +2354,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2372,6 +2369,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2384,6 +2384,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2396,6 +2399,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2408,6 +2414,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2420,6 +2429,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2432,6 +2444,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2444,6 +2459,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2456,6 +2474,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2468,6 +2489,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2478,6 +2502,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 2,
 	 .max_count = SQL_MAX_FUNCTION_ARG,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_SCALAR,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2490,6 +2517,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 1,
 	 .max_count = 2,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_SCALAR,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_GROUP,
 	 .is_deterministic = false,
@@ -2502,6 +2532,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_STRING,
+	 .is_blob_like_str = true,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2514,6 +2547,9 @@ static struct {
 	 .param_count = 2,
 	 .min_count = 2,
 	 .max_count = 2,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_INTEGER,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2528,6 +2564,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2538,6 +2577,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 2,
 	 .max_count = SQL_MAX_FUNCTION_ARG,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_SCALAR,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2550,6 +2592,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_STRING,
+	 .is_blob_like_str = true,
 	 .returns = FIELD_TYPE_INTEGER,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2564,6 +2609,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2574,6 +2622,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 2,
 	 .max_count = 3,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_STRING,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_INTEGER,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2586,6 +2637,9 @@ static struct {
 	 .param_count = 2,
 	 .min_count = 2,
 	 .max_count = 2,
+	 .types = func_likelihood_types,
+	 .recurrent_type = field_type_MAX,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_BOOLEAN,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2598,6 +2652,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_BOOLEAN,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2612,6 +2669,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2622,6 +2682,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_STRING,
+	 .is_blob_like_str = true,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2634,6 +2697,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_SCALAR,
 	 .aggregate = FUNC_AGGREGATE_GROUP,
 	 .is_deterministic = false,
@@ -2646,6 +2712,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_SCALAR,
 	 .aggregate = FUNC_AGGREGATE_GROUP,
 	 .is_deterministic = false,
@@ -2660,6 +2729,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2670,6 +2742,9 @@ static struct {
 	 .param_count = 2,
 	 .min_count = 2,
 	 .max_count = 2,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_SCALAR,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2684,6 +2759,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2694,6 +2772,9 @@ static struct {
 	 .param_count = 2,
 	 .min_count = 2,
 	 .max_count = 2,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_STRING,
+	 .is_blob_like_str = true,
 	 .returns = FIELD_TYPE_INTEGER,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2708,6 +2789,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2718,6 +2802,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = SQL_MAX_FUNCTION_ARG,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2730,6 +2817,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2742,6 +2832,9 @@ static struct {
 	 .param_count = 0,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_INTEGER,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2754,6 +2847,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_UNSIGNED,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_VARBINARY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2766,6 +2862,9 @@ static struct {
 	 .param_count = 3,
 	 .min_count = 3,
 	 .max_count = 3,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_STRING,
+	 .is_blob_like_str = true,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2778,6 +2877,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 1,
 	 .max_count = 2,
+	 .types = func_round_types,
+	 .recurrent_type = field_type_MAX,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_INTEGER,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2790,6 +2892,9 @@ static struct {
 	 .param_count = 0,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_INTEGER,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2804,6 +2909,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2814,6 +2922,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_STRING,
+	 .is_blob_like_str = true,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2828,6 +2939,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2840,6 +2954,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2850,6 +2967,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 2,
 	 .max_count = 3,
+	 .types = func_substr_types,
+	 .recurrent_type = field_type_MAX,
+	 .is_blob_like_str = true,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2862,6 +2982,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_NUMBER,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_NUMBER,
 	 .aggregate = FUNC_AGGREGATE_GROUP,
 	 .is_deterministic = false,
@@ -2876,6 +2999,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2886,6 +3012,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_NUMBER,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_NUMBER,
 	 .aggregate = FUNC_AGGREGATE_GROUP,
 	 .is_deterministic = false,
@@ -2898,6 +3027,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 1,
 	 .max_count = 3,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2910,6 +3042,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2922,6 +3057,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_STRING,
+	 .is_blob_like_str = true,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2934,6 +3072,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_BOOLEAN,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2946,6 +3087,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_STRING,
+	 .is_blob_like_str = true,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2958,6 +3102,9 @@ static struct {
 	 .param_count = 0,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_STRING,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2970,6 +3117,9 @@ static struct {
 	 .param_count = 1,
 	 .min_count = 1,
 	 .max_count = 1,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_UNSIGNED,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_VARBINARY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = true,
@@ -2984,6 +3134,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -2996,6 +3149,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = NULL,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -3008,6 +3164,9 @@ static struct {
 	 .param_count = -1,
 	 .min_count = 0,
 	 .max_count = 0,
+	 .types = false,
+	 .recurrent_type = FIELD_TYPE_ANY,
+	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_ANY,
 	 .aggregate = FUNC_AGGREGATE_NONE,
 	 .is_deterministic = false,
@@ -3061,6 +3220,9 @@ func_sql_builtin_new(struct func_def *def)
 	func->finalize = sql_builtins[idx].finalize;
 	func->args.min_count = sql_builtins[idx].min_count;
 	func->args.max_count = sql_builtins[idx].max_count;
+	func->args.types = sql_builtins[idx].types;
+	func->args.recurrent_type = sql_builtins[idx].recurrent_type;
+	func->args.is_blob_like_str = sql_builtins[idx].is_blob_like_str;
 	def->param_count = sql_builtins[idx].param_count;
 	def->is_deterministic = sql_builtins[idx].is_deterministic;
 	def->returns = sql_builtins[idx].returns;
diff --git a/src/box/sql/select.c b/src/box/sql/select.c
index 4b069addb..fe56ede1b 100644
--- a/src/box/sql/select.c
+++ b/src/box/sql/select.c
@@ -124,6 +124,34 @@ clearSelect(sql * db, Select * p, int bFree)
 	}
 }
 
+void
+sql_emit_func_types(struct Vdbe *vdbe, struct sql_builtin_func_args *args,
+		    int reg, uint32_t argc)
+{
+	assert(argc <= args->max_count);
+	enum field_type recurrent_type = args->recurrent_type;
+	assert(args->max_count > 0 || recurrent_type == FIELD_TYPE_ANY);
+	/*
+	 * It makes no sense to check types of the MEMs if all
+	 * arguments should be of type ANY.
+	 */
+	if (recurrent_type == FIELD_TYPE_ANY)
+		return;
+	size_t size = (argc + 1) * sizeof(enum field_type);
+	enum field_type *types = sqlDbMallocZero(sql_get(), size);
+	for (uint32_t i = 0; i < argc; ++i) {
+		if (args->types == NULL)
+			types[i] = args->recurrent_type;
+		else
+			types[i] = args->types[i];
+	}
+	types[argc] = field_type_MAX;
+	sqlVdbeAddOp4(vdbe, OP_ApplyType, reg, argc, 0, (char *)types,
+		      P4_DYNAMIC);
+	if (args->is_blob_like_str)
+		sqlVdbeChangeP5(vdbe, OPFLAG_BLOB_LIKE_STRING);
+}
+
 /*
  * Initialize a SelectDest structure.
  */
@@ -5414,6 +5442,9 @@ updateAccumulator(Parse * pParse, AggInfo * pAggInfo)
 			sqlVdbeAddOp4(v, OP_CollSeq, regHit, 0, 0,
 					  (char *)coll, P4_COLLSEQ);
 		}
+		struct func_sql_builtin *f =
+			(struct func_sql_builtin *)pF->func;
+		sql_emit_func_types(v, &f->args, regAgg, nArg);
 		sqlVdbeAddOp3(v, OP_AggStep0, 0, regAgg, pF->iMem);
 		sqlVdbeAppendP4(v, pF->func, P4_FUNC);
 		sqlVdbeChangeP5(v, (u8) nArg);
diff --git a/src/box/sql/sqlInt.h b/src/box/sql/sqlInt.h
index 6af9d7473..f82ae4eeb 100644
--- a/src/box/sql/sqlInt.h
+++ b/src/box/sql/sqlInt.h
@@ -265,6 +265,8 @@
 #include <assert.h>
 #include <stddef.h>
 
+struct sql_builtin_func_args;
+
 typedef long long int sql_int64;
 typedef unsigned long long int sql_uint64;
 typedef sql_int64 sql_int64;
@@ -2307,6 +2309,8 @@ struct Parse {
 #define OPFLAG_SYSTEMSP      0x20	/* OP_Open**: set if space pointer
 					 * points to system space.
 					 */
+/** OP_ApplyType: Treat BLOB as STRING. */
+#define OPFLAG_BLOB_LIKE_STRING		0x01
 
 /**
  * Prepare vdbe P5 flags for OP_{IdxInsert, IdxReplace, Update}
@@ -3881,6 +3885,20 @@ sql_index_type_str(struct sql *db, const struct index_def *idx_def);
 void
 sql_emit_table_types(struct Vdbe *v, struct space_def *def, int reg);
 
+/**
+ * Code an OP_ApplyType opcode that will force types for given
+ * range of register starting from @a reg. These values then will
+ * be used as arguments of a function.
+ *
+ * @param vdbe VDBE.
+ * @param args Information about arguments of the function.
+ * @param reg Register where types will be placed.
+ * @param argc Number of arguments.
+ */
+void
+sql_emit_func_types(struct Vdbe *vdbe, struct sql_builtin_func_args *args,
+		    int reg, uint32_t argc);
+
 enum field_type
 sql_type_result(enum field_type lhs, enum field_type rhs);
 
@@ -4406,6 +4424,20 @@ struct sql_builtin_func_args {
 	uint32_t min_count;
 	/** Max number of arguments. */
 	uint32_t max_count;
+	/**
+	 * If function arguments may not be of the same type, all
+	 * argument types are described here.
+	 */
+	enum field_type *types;
+	/**
+	 * Contains the type of arguments if all arguments to the
+	 * function are of the same type.
+	 */
+	enum field_type recurrent_type;
+	/**
+	 * TRUE if the function should treat the BLOB as STRING.
+	 */
+	bool is_blob_like_str;
 };
 
 struct func_sql_builtin {
diff --git a/src/box/sql/vdbe.c b/src/box/sql/vdbe.c
index 863f38f5d..a4bf84bcc 100644
--- a/src/box/sql/vdbe.c
+++ b/src/box/sql/vdbe.c
@@ -2882,7 +2882,7 @@ case OP_Fetch: {
 	break;
 }
 
-/* Opcode: ApplyType P1 P2 * P4 *
+/* Opcode: ApplyType P1 P2 * P4 P5
  * Synopsis: type(r[P1 at P2])
  *
  * Check that types of P2 registers starting from register P1 are
@@ -2890,6 +2890,9 @@ case OP_Fetch: {
  * value and the given type are incompatible according to
  * field_mp_plain_type_is_compatible(), but both are numeric,
  * this opcode attempts to convert the value to the type.
+ *
+ * If P5 contains the OPFLAG_BLOB_LIKE_STRING flag, the BLOB
+ * values ​​are processed as if they had the field type STRING.
  */
 case OP_ApplyType: {
 	enum field_type *types = pOp->p4.types;
@@ -2904,6 +2907,13 @@ case OP_ApplyType: {
 			pIn1++;
 			continue;
 		}
+		if ((pOp->p5 & OPFLAG_BLOB_LIKE_STRING) != 0) {
+			if (type == FIELD_TYPE_STRING &&
+			    mem_mp_type(pIn1) == MP_BIN) {
+				pIn1++;
+				continue;
+			}
+		}
 		if (!mp_type_is_numeric(mem_mp_type(pIn1)) ||
 		    !sql_type_is_numeric(type) ||
 		    mem_convert_to_numeric(pIn1, type, false) != 0) {
diff --git a/test/sql-tap/cse.test.lua b/test/sql-tap/cse.test.lua
index 341b6de01..3c2076a1d 100755
--- a/test/sql-tap/cse.test.lua
+++ b/test/sql-tap/cse.test.lua
@@ -195,23 +195,23 @@ test:do_execsql_test(
 
 
 
-test:do_execsql_test(
+test:do_catchsql_test(
     "cse-1.13",
     [[
         SELECT upper(b), typeof(b), b FROM t1
     ]], {
         -- <cse-1.13>
-        "11", "integer", 11, "21", "integer", 21
+        1, "Type mismatch: can not convert 11 to string"
         -- </cse-1.13>
     })
 
-test:do_execsql_test(
+test:do_catchsql_test(
     "cse-1.14",
     [[
         SELECT b, typeof(b), upper(b), typeof(b), b FROM t1
     ]], {
         -- <cse-1.14>
-        11, "integer", "11", "integer", 11, 21, "integer", "21", "integer", 21
+        1, "Type mismatch: can not convert 11 to string"
         -- </cse-1.14>
     })
 
diff --git a/test/sql-tap/func.test.lua b/test/sql-tap/func.test.lua
index 1d3ef9e2a..ae97994d7 100755
--- a/test/sql-tap/func.test.lua
+++ b/test/sql-tap/func.test.lua
@@ -92,13 +92,13 @@ test:do_execsql_test(
         -- </func-1.3>
     })
 
-test:do_execsql_test(
+test:do_catchsql_test(
     "func-1.4",
     [[
         SELECT coalesce(length(a),-1) FROM t2
     ]], {
         -- <func-1.4>
-        1, -1, 3, -1, 5
+        1, "Type mismatch: can not convert 1 to string"
         -- </func-1.4>
     })
 
@@ -194,23 +194,23 @@ test:do_execsql_test(
         -- </func-2.8>
     })
 
-test:do_execsql_test(
+test:do_catchsql_test(
     "func-2.9",
     [[
         SELECT substr(a,1,1) FROM t2
     ]], {
         -- <func-2.9>
-        "1", "", "3", "", "6"
+        1, "Type mismatch: can not convert 1 to string"
         -- </func-2.9>
     })
 
-test:do_execsql_test(
+test:do_catchsql_test(
     "func-2.10",
     [[
         SELECT substr(a,2,2) FROM t2
     ]], {
         -- <func-2.10>
-        "", "", "45", "", "78"
+        1, "Type mismatch: can not convert 1 to string"
         -- </func-2.10>
     })
 
@@ -412,13 +412,13 @@ test:do_execsql_test(
         -- </func-4.4.1>
     })
 
-test:do_execsql_test(
+test:do_catchsql_test(
     "func-4.4.2",
     [[
         SELECT abs(t1) FROM tbl1
     ]], {
         -- <func-4.4.2>
-        0.0, 0.0, 0.0, 0.0, 0.0
+        1, "Type mismatch: can not convert this to number"
         -- </func-4.4.2>
     })
 
@@ -502,13 +502,13 @@ test:do_execsql_test(
         -- </func-4.12>
     })
 
-test:do_execsql_test(
+test:do_catchsql_test(
     "func-4.13",
     [[
         SELECT round(t1,2) FROM tbl1
     ]], {
         -- <func-4.13>
-        0.0, 0.0, 0.0, 0.0, 0.0
+        1, "Type mismatch: can not convert this to double"
         -- </func-4.13>
     })
 
@@ -760,13 +760,13 @@ test:do_execsql_test(
         -- </func-5.2>
     })
 
-test:do_execsql_test(
+test:do_catchsql_test(
     "func-5.3",
     [[
         SELECT upper(a), lower(a) FROM t2
     ]], {
         -- <func-5.3>
-        "1","1","","","345","345","","","67890","67890"
+        1, "Type mismatch: can not convert 1 to string"
         -- </func-5.3>
     })
 
@@ -794,13 +794,13 @@ test:do_execsql_test(
         -- </func-6.1>
     })
 
-test:do_execsql_test(
+test:do_catchsql_test(
     "func-6.2",
     [[
         SELECT coalesce(upper(a),'nil') FROM t2
     ]], {
         -- <func-6.2>
-        "1","nil","345","nil","67890"
+        1, "Type mismatch: can not convert 1 to string"
         -- </func-6.2>
     })
 
@@ -893,7 +893,7 @@ test:do_execsql_test(
 test:do_execsql_test(
     "func-8.5",
     [[
-        SELECT sum(x) FROM (SELECT '9223372036' || '854775807' AS x
+        SELECT sum(x) FROM (SELECT CAST('9223372036' || '854775807' AS INTEGER) AS x
                             UNION ALL SELECT -9223372036854775807)
     ]], {
         -- <func-8.5>
@@ -904,7 +904,7 @@ test:do_execsql_test(
 test:do_execsql_test(
     "func-8.6",
     [[
-        SELECT typeof(sum(x)) FROM (SELECT '9223372036' || '854775807' AS x
+        SELECT typeof(sum(x)) FROM (SELECT CAST('9223372036' || '854775807' AS INTEGER) AS x
                             UNION ALL SELECT -9223372036854775807)
     ]], {
         -- <func-8.6>
@@ -915,7 +915,7 @@ test:do_execsql_test(
 test:do_execsql_test(
     "func-8.7",
     [[
-        SELECT typeof(sum(x)) FROM (SELECT '9223372036' || '854775808' AS x
+        SELECT typeof(sum(x)) FROM (SELECT CAST('9223372036' || '854775808' AS INTEGER) AS x
                             UNION ALL SELECT -9223372036854775807)
     ]], {
         -- <func-8.7>
@@ -926,7 +926,7 @@ test:do_execsql_test(
 test:do_execsql_test(
     "func-8.8",
     [[
-        SELECT sum(x)>0.0 FROM (SELECT '9223372036' || '854775808' AS x
+        SELECT sum(x)>0.0 FROM (SELECT CAST('9223372036' || '854775808' AS INTEGER) AS x
                             UNION ALL SELECT -9223372036850000000)
     ]], {
         -- <func-8.8>
@@ -982,14 +982,14 @@ test:do_execsql_test(
         -- </func-9.4>
     })
 
-test:do_execsql_test(
+test:do_catchsql_test(
     "func-9.5",
     [[
         SELECT length(randomblob(32)), length(randomblob(-5)),
                length(randomblob(2000))
     ]], {
         -- <func-9.5>
-        32, "", 2000
+        1, "Type mismatch: can not convert -5 to unsigned"
         -- </func-9.5>
     })
 
@@ -2918,7 +2918,7 @@ test:do_catchsql_test(
         SELECT ROUND(X'FF')
     ]], {
         -- <func-76.1>
-        1, "Type mismatch: can not convert varbinary to numeric"
+        1, "Type mismatch: can not convert varbinary to double"
         -- </func-76.1>
     })
 
@@ -2928,17 +2928,17 @@ test:do_catchsql_test(
         SELECT RANDOMBLOB(X'FF')
     ]], {
         -- <func-76.2>
-        1, "Type mismatch: can not convert varbinary to numeric"
+        1, "Type mismatch: can not convert varbinary to unsigned"
         -- </func-76.2>
     })
 
-test:do_catchsql_test(
+test:do_execsql_test(
     "func-76.3",
     [[
         SELECT SOUNDEX(X'FF')
     ]], {
         -- <func-76.3>
-        1, "Type mismatch: can not convert varbinary to text"
+        "?000"
         -- </func-76.3>
     })
 
diff --git a/test/sql-tap/orderby1.test.lua b/test/sql-tap/orderby1.test.lua
index 51e8d301f..95a8de487 100755
--- a/test/sql-tap/orderby1.test.lua
+++ b/test/sql-tap/orderby1.test.lua
@@ -735,7 +735,7 @@ test:do_execsql_test(
         SELECT (
           SELECT 'hardware' FROM ( 
             SELECT 'software' ORDER BY 'firmware' ASC, 'sportswear' DESC
-          ) GROUP BY 1 HAVING length(b) <> 0
+          ) GROUP BY 1 HAVING length(CAST(b AS STRING)) <> 0
         )
         FROM abc;
     ]], {
diff --git a/test/sql-tap/position.test.lua b/test/sql-tap/position.test.lua
index e0455abc9..0d4f6f371 100755
--- a/test/sql-tap/position.test.lua
+++ b/test/sql-tap/position.test.lua
@@ -228,7 +228,7 @@ test:do_test(
         return test:catchsql "SELECT position(34, 12345);"
     end, {
         -- <position-1.23>
-        1, "Inconsistent types: expected text or varbinary got unsigned"
+        1, "Type mismatch: can not convert 34 to string"
         -- </position-1.23>
     })
 
@@ -238,7 +238,7 @@ test:do_test(
         return test:catchsql "SELECT position(34, 123456.78);"
     end, {
         -- <position-1.24>
-        1, "Inconsistent types: expected text or varbinary got real"
+        1, "Type mismatch: can not convert 34 to string"
         -- </position-1.24>
     })
 
@@ -248,7 +248,7 @@ test:do_test(
         return test:catchsql "SELECT position(x'3334', 123456.78);"
     end, {
         -- <position-1.25>
-        1, "Inconsistent types: expected text or varbinary got real"
+        1, "Type mismatch: can not convert 123456.78 to string"
         -- </position-1.25>
     })
 
diff --git a/test/sql/boolean.result b/test/sql/boolean.result
index 112e41a12..7e7f97284 100644
--- a/test/sql/boolean.result
+++ b/test/sql/boolean.result
@@ -276,29 +276,17 @@ SELECT is_boolean('true');
 SELECT abs(a) FROM t0;
  | ---
  | - null
- | - 'Inconsistent types: expected number got boolean'
+ | - 'Type mismatch: can not convert FALSE to number'
  | ...
 SELECT lower(a) FROM t0;
  | ---
- | - metadata:
- |   - name: lower(a)
- |     type: string
- |   rows:
- |   - ['false']
- |   - ['true']
- |   - [null]
- |   - [null]
+ | - null
+ | - 'Type mismatch: can not convert FALSE to string'
  | ...
 SELECT upper(a) FROM t0;
  | ---
- | - metadata:
- |   - name: upper(a)
- |     type: string
- |   rows:
- |   - ['FALSE']
- |   - ['TRUE']
- |   - [null]
- |   - [null]
+ | - null
+ | - 'Type mismatch: can not convert FALSE to string'
  | ...
 SELECT quote(a) FROM t0;
  | ---
@@ -314,14 +302,8 @@ SELECT quote(a) FROM t0;
 -- gh-4462: LENGTH didn't take BOOLEAN arguments.
 SELECT length(a) FROM t0;
  | ---
- | - metadata:
- |   - name: length(a)
- |     type: integer
- |   rows:
- |   - [5]
- |   - [4]
- |   - [null]
- |   - [null]
+ | - null
+ | - 'Type mismatch: can not convert FALSE to string'
  | ...
 SELECT typeof(a) FROM t0;
  | ---
diff --git a/test/sql/gh-4159-function-argumens.result b/test/sql/gh-4159-function-argumens.result
index 48bd550a4..4a276d65b 100644
--- a/test/sql/gh-4159-function-argumens.result
+++ b/test/sql/gh-4159-function-argumens.result
@@ -19,6 +19,54 @@ SELECT abs(1, 2);
  | - 'Wrong number of arguments is passed to ABS(): expected 1, got 2'
  | ...
 
+SELECT abs(NULL);
+ | ---
+ | - metadata:
+ |   - name: abs(NULL)
+ |     type: number
+ |   rows:
+ |   - [null]
+ | ...
+SELECT abs(1);
+ | ---
+ | - metadata:
+ |   - name: abs(1)
+ |     type: number
+ |   rows:
+ |   - [1]
+ | ...
+SELECT abs(-1);
+ | ---
+ | - metadata:
+ |   - name: abs(-1)
+ |     type: number
+ |   rows:
+ |   - [1]
+ | ...
+SELECT abs(-1.5);
+ | ---
+ | - metadata:
+ |   - name: abs(-1.5)
+ |     type: number
+ |   rows:
+ |   - [1.5]
+ | ...
+SELECT abs(true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to number'
+ | ...
+SELECT abs('abc');
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert abc to number'
+ | ...
+SELECT abs(X'3334');
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert varbinary to number'
+ | ...
+
 -- Function char().
 SELECT char();
  | ---
@@ -45,6 +93,36 @@ SELECT char(1, 2);
  |   - ["\x01\x02"]
  | ...
 
+SELECT char(NULL);
+ | ---
+ | - metadata:
+ |   - name: char(NULL)
+ |     type: string
+ |   rows:
+ |   - [null]
+ | ...
+SELECT char(1);
+ | ---
+ | - metadata:
+ |   - name: char(1)
+ |     type: string
+ |   rows:
+ |   - ["\x01"]
+ | ...
+SELECT char(-1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to unsigned'
+ | ...
+SELECT char(-1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to unsigned'
+ | ...
+-- SELECT char(true);
+-- SELECT char('abc');
+-- SELECT char(X'3334');
+
 -- Function character_length().
 SELECT character_length();
  | ---
@@ -65,6 +143,51 @@ SELECT character_length('1', '2');
  | - 'Wrong number of arguments is passed to CHARACTER_LENGTH(): expected 1, got 2'
  | ...
 
+SELECT character_length(NULL);
+ | ---
+ | - metadata:
+ |   - name: character_length(NULL)
+ |     type: integer
+ |   rows:
+ |   - [null]
+ | ...
+SELECT character_length(1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert 1 to string'
+ | ...
+SELECT character_length(-1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to string'
+ | ...
+SELECT character_length(-1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to string'
+ | ...
+SELECT character_length(true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to string'
+ | ...
+SELECT character_length('abc');
+ | ---
+ | - metadata:
+ |   - name: character_length('abc')
+ |     type: integer
+ |   rows:
+ |   - [3]
+ | ...
+SELECT character_length(X'3334');
+ | ---
+ | - metadata:
+ |   - name: character_length(X'3334')
+ |     type: integer
+ |   rows:
+ |   - [2]
+ | ...
+
 -- Function char_length().
 SELECT char_length();
  | ---
@@ -85,6 +208,51 @@ SELECT char_length('1', '2');
  | - 'Wrong number of arguments is passed to CHAR_LENGTH(): expected 1, got 2'
  | ...
 
+SELECT char_length(NULL);
+ | ---
+ | - metadata:
+ |   - name: char_length(NULL)
+ |     type: integer
+ |   rows:
+ |   - [null]
+ | ...
+SELECT char_length(1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert 1 to string'
+ | ...
+SELECT char_length(-1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to string'
+ | ...
+SELECT char_length(-1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to string'
+ | ...
+SELECT char_length(true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to string'
+ | ...
+SELECT char_length('abc');
+ | ---
+ | - metadata:
+ |   - name: char_length('abc')
+ |     type: integer
+ |   rows:
+ |   - [3]
+ | ...
+SELECT char_length(X'3334');
+ | ---
+ | - metadata:
+ |   - name: char_length(X'3334')
+ |     type: integer
+ |   rows:
+ |   - [2]
+ | ...
+
 -- Function coalesce().
 SELECT coalesce();
  | ---
@@ -115,6 +283,63 @@ SELECT coalesce('1', '2', '3');
  |   - ['1']
  | ...
 
+SELECT coalesce(NULL, NULL);
+ | ---
+ | - metadata:
+ |   - name: coalesce(NULL, NULL)
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT coalesce(1, 1);
+ | ---
+ | - metadata:
+ |   - name: coalesce(1, 1)
+ |     type: scalar
+ |   rows:
+ |   - [1]
+ | ...
+SELECT coalesce(-1, -1);
+ | ---
+ | - metadata:
+ |   - name: coalesce(-1, -1)
+ |     type: scalar
+ |   rows:
+ |   - [-1]
+ | ...
+SELECT coalesce(-1.5, -1.5);
+ | ---
+ | - metadata:
+ |   - name: coalesce(-1.5, -1.5)
+ |     type: scalar
+ |   rows:
+ |   - [-1.5]
+ | ...
+SELECT coalesce(true, true);
+ | ---
+ | - metadata:
+ |   - name: coalesce(true, true)
+ |     type: scalar
+ |   rows:
+ |   - [true]
+ | ...
+SELECT coalesce('abc', 'abc');
+ | ---
+ | - metadata:
+ |   - name: coalesce('abc', 'abc')
+ |     type: scalar
+ |   rows:
+ |   - ['abc']
+ | ...
+SELECT coalesce(X'3334', X'3334');
+ | ---
+ | - metadata:
+ |   - name: coalesce(X'3334', X'3334')
+ |     type: scalar
+ |   rows:
+ |   - ['34']
+ | ...
+
 -- Function greatest().
 SELECT greatest();
  | ---
@@ -137,6 +362,63 @@ SELECT greatest('1', '2');
  |   - ['2']
  | ...
 
+SELECT greatest(NULL, NULL);
+ | ---
+ | - metadata:
+ |   - name: greatest(NULL, NULL)
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT greatest(1, 1);
+ | ---
+ | - metadata:
+ |   - name: greatest(1, 1)
+ |     type: scalar
+ |   rows:
+ |   - [1]
+ | ...
+SELECT greatest(-1, -1);
+ | ---
+ | - metadata:
+ |   - name: greatest(-1, -1)
+ |     type: scalar
+ |   rows:
+ |   - [-1]
+ | ...
+SELECT greatest(-1.5, -1.5);
+ | ---
+ | - metadata:
+ |   - name: greatest(-1.5, -1.5)
+ |     type: scalar
+ |   rows:
+ |   - [-1.5]
+ | ...
+SELECT greatest(true, true);
+ | ---
+ | - metadata:
+ |   - name: greatest(true, true)
+ |     type: scalar
+ |   rows:
+ |   - [true]
+ | ...
+SELECT greatest('abc', 'abc');
+ | ---
+ | - metadata:
+ |   - name: greatest('abc', 'abc')
+ |     type: scalar
+ |   rows:
+ |   - ['abc']
+ | ...
+SELECT greatest(X'3334', X'3334');
+ | ---
+ | - metadata:
+ |   - name: greatest(X'3334', X'3334')
+ |     type: scalar
+ |   rows:
+ |   - ['34']
+ | ...
+
 -- Function hex().
 SELECT hex();
  | ---
@@ -157,6 +439,51 @@ SELECT hex(X'33', X'33');
  | - 'Wrong number of arguments is passed to HEX(): expected 1, got 2'
  | ...
 
+SELECT hex(NULL);
+ | ---
+ | - metadata:
+ |   - name: hex(NULL)
+ |     type: string
+ |   rows:
+ |   - ['']
+ | ...
+SELECT hex(1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert 1 to string'
+ | ...
+SELECT hex(-1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to string'
+ | ...
+SELECT hex(-1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to string'
+ | ...
+SELECT hex(true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to string'
+ | ...
+SELECT hex('abc');
+ | ---
+ | - metadata:
+ |   - name: hex('abc')
+ |     type: string
+ |   rows:
+ |   - ['616263']
+ | ...
+SELECT hex(X'3334');
+ | ---
+ | - metadata:
+ |   - name: hex(X'3334')
+ |     type: string
+ |   rows:
+ |   - ['3334']
+ | ...
+
 -- Function ifnull
 SELECT ifnull();
  | ---
@@ -182,46 +509,205 @@ SELECT ifnull(1, 2, 3);
  | - 'Wrong number of arguments is passed to IFNULL(): expected 2, got 3'
  | ...
 
--- Function least().
-SELECT least();
+SELECT ifnull(NULL, NULL);
  | ---
- | - null
- | - 'Wrong number of arguments is passed to LEAST(): expected from 2 to 127, got 0'
+ | - metadata:
+ |   - name: ifnull(NULL, NULL)
+ |     type: integer
+ |   rows:
+ |   - [null]
  | ...
-SELECT least('1');
+SELECT ifnull(1, 1);
  | ---
- | - null
- | - 'Wrong number of arguments is passed to LEAST(): expected from 2 to 127, got 1'
+ | - metadata:
+ |   - name: ifnull(1, 1)
+ |     type: integer
+ |   rows:
+ |   - [1]
  | ...
-SELECT least('1', '2');
+SELECT ifnull(-1, -1);
  | ---
  | - metadata:
- |   - name: least('1', '2')
- |     type: scalar
+ |   - name: ifnull(-1, -1)
+ |     type: integer
  |   rows:
- |   - ['1']
+ |   - [-1]
  | ...
-
--- Function length().
-SELECT length();
+SELECT ifnull(-1.5, -1.5);
  | ---
- | - null
- | - 'Wrong number of arguments is passed to LENGTH(): expected 1, got 0'
+ | - metadata:
+ |   - name: ifnull(-1.5, -1.5)
+ |     type: integer
+ |   rows:
+ |   - [-1.5]
  | ...
-SELECT length('1');
+SELECT ifnull(true, true);
  | ---
  | - metadata:
- |   - name: length('1')
+ |   - name: ifnull(true, true)
  |     type: integer
  |   rows:
- |   - [1]
+ |   - [true]
  | ...
-SELECT length('1', '2');
+SELECT ifnull('abc', 'abc');
  | ---
- | - null
+ | - metadata:
+ |   - name: ifnull('abc', 'abc')
+ |     type: integer
+ |   rows:
+ |   - ['abc']
+ | ...
+SELECT ifnull(X'3334', X'3334');
+ | ---
+ | - metadata:
+ |   - name: ifnull(X'3334', X'3334')
+ |     type: integer
+ |   rows:
+ |   - ['34']
+ | ...
+
+-- Function least().
+SELECT least();
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to LEAST(): expected from 2 to 127, got 0'
+ | ...
+SELECT least('1');
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to LEAST(): expected from 2 to 127, got 1'
+ | ...
+SELECT least('1', '2');
+ | ---
+ | - metadata:
+ |   - name: least('1', '2')
+ |     type: scalar
+ |   rows:
+ |   - ['1']
+ | ...
+
+SELECT least(NULL, NULL);
+ | ---
+ | - metadata:
+ |   - name: least(NULL, NULL)
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT least(1, 1);
+ | ---
+ | - metadata:
+ |   - name: least(1, 1)
+ |     type: scalar
+ |   rows:
+ |   - [1]
+ | ...
+SELECT least(-1, -1);
+ | ---
+ | - metadata:
+ |   - name: least(-1, -1)
+ |     type: scalar
+ |   rows:
+ |   - [-1]
+ | ...
+SELECT least(-1.5, -1.5);
+ | ---
+ | - metadata:
+ |   - name: least(-1.5, -1.5)
+ |     type: scalar
+ |   rows:
+ |   - [-1.5]
+ | ...
+SELECT least(true, true);
+ | ---
+ | - metadata:
+ |   - name: least(true, true)
+ |     type: scalar
+ |   rows:
+ |   - [true]
+ | ...
+SELECT least('abc', 'abc');
+ | ---
+ | - metadata:
+ |   - name: least('abc', 'abc')
+ |     type: scalar
+ |   rows:
+ |   - ['abc']
+ | ...
+SELECT least(X'3334', X'3334');
+ | ---
+ | - metadata:
+ |   - name: least(X'3334', X'3334')
+ |     type: scalar
+ |   rows:
+ |   - ['34']
+ | ...
+
+-- Function length().
+SELECT length();
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to LENGTH(): expected 1, got 0'
+ | ...
+SELECT length('1');
+ | ---
+ | - metadata:
+ |   - name: length('1')
+ |     type: integer
+ |   rows:
+ |   - [1]
+ | ...
+SELECT length('1', '2');
+ | ---
+ | - null
  | - 'Wrong number of arguments is passed to LENGTH(): expected 1, got 2'
  | ...
 
+SELECT length(NULL);
+ | ---
+ | - metadata:
+ |   - name: length(NULL)
+ |     type: integer
+ |   rows:
+ |   - [null]
+ | ...
+SELECT length(1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert 1 to string'
+ | ...
+SELECT length(-1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to string'
+ | ...
+SELECT length(-1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to string'
+ | ...
+SELECT length(true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to string'
+ | ...
+SELECT length('abc');
+ | ---
+ | - metadata:
+ |   - name: length('abc')
+ |     type: integer
+ |   rows:
+ |   - [3]
+ | ...
+SELECT length(X'3334');
+ | ---
+ | - metadata:
+ |   - name: length(X'3334')
+ |     type: integer
+ |   rows:
+ |   - [2]
+ | ...
+
 -- Function likelihood
 SELECT likelihood();
  | ---
@@ -247,6 +733,49 @@ SELECT likelihood(1, 0.5, 3);
  | - 'Wrong number of arguments is passed to LIKELIHOOD(): expected 2, got 3'
  | ...
 
+SELECT likelihood(NULL, NULL);
+ | ---
+ | - null
+ | - Illegal parameters, second argument to likelihood() must be a constant between 0.0
+ |   and 1.0
+ | ...
+SELECT likelihood(1, 1);
+ | ---
+ | - null
+ | - Illegal parameters, second argument to likelihood() must be a constant between 0.0
+ |   and 1.0
+ | ...
+SELECT likelihood(-1, -1);
+ | ---
+ | - null
+ | - Illegal parameters, second argument to likelihood() must be a constant between 0.0
+ |   and 1.0
+ | ...
+SELECT likelihood(-1.5, -1.5);
+ | ---
+ | - null
+ | - Illegal parameters, second argument to likelihood() must be a constant between 0.0
+ |   and 1.0
+ | ...
+SELECT likelihood(true, true);
+ | ---
+ | - null
+ | - Illegal parameters, second argument to likelihood() must be a constant between 0.0
+ |   and 1.0
+ | ...
+SELECT likelihood('abc', 'abc');
+ | ---
+ | - null
+ | - Illegal parameters, second argument to likelihood() must be a constant between 0.0
+ |   and 1.0
+ | ...
+SELECT likelihood(X'3334', X'3334');
+ | ---
+ | - null
+ | - Illegal parameters, second argument to likelihood() must be a constant between 0.0
+ |   and 1.0
+ | ...
+
 -- Function likely
 SELECT likely();
  | ---
@@ -267,6 +796,63 @@ SELECT likely(1, 2);
  | - 'Wrong number of arguments is passed to LIKELY(): expected 1, got 2'
  | ...
 
+SELECT likely(NULL);
+ | ---
+ | - metadata:
+ |   - name: likely(NULL)
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT likely(1);
+ | ---
+ | - metadata:
+ |   - name: likely(1)
+ |     type: integer
+ |   rows:
+ |   - [1]
+ | ...
+SELECT likely(-1);
+ | ---
+ | - metadata:
+ |   - name: likely(-1)
+ |     type: integer
+ |   rows:
+ |   - [-1]
+ | ...
+SELECT likely(-1.5);
+ | ---
+ | - metadata:
+ |   - name: likely(-1.5)
+ |     type: double
+ |   rows:
+ |   - [-1.5]
+ | ...
+SELECT likely(true);
+ | ---
+ | - metadata:
+ |   - name: likely(true)
+ |     type: boolean
+ |   rows:
+ |   - [true]
+ | ...
+SELECT likely('abc');
+ | ---
+ | - metadata:
+ |   - name: likely('abc')
+ |     type: string
+ |   rows:
+ |   - ['abc']
+ | ...
+SELECT likely(X'3334');
+ | ---
+ | - metadata:
+ |   - name: likely(X'3334')
+ |     type: varbinary
+ |   rows:
+ |   - ['34']
+ | ...
+
 -- Function lower
 SELECT lower();
  | ---
@@ -287,6 +873,51 @@ SELECT lower('a', 2);
  | - 'Wrong number of arguments is passed to LOWER(): expected 1, got 2'
  | ...
 
+SELECT lower(NULL);
+ | ---
+ | - metadata:
+ |   - name: lower(NULL)
+ |     type: string
+ |   rows:
+ |   - [null]
+ | ...
+SELECT lower(1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert 1 to string'
+ | ...
+SELECT lower(-1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to string'
+ | ...
+SELECT lower(-1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to string'
+ | ...
+SELECT lower(true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to string'
+ | ...
+SELECT lower('abc');
+ | ---
+ | - metadata:
+ |   - name: lower('abc')
+ |     type: string
+ |   rows:
+ |   - ['abc']
+ | ...
+SELECT lower(X'3334');
+ | ---
+ | - metadata:
+ |   - name: lower(X'3334')
+ |     type: string
+ |   rows:
+ |   - ['34']
+ | ...
+
 -- Function nullif
 SELECT nullif();
  | ---
@@ -312,6 +943,63 @@ SELECT nullif(1, 2, 3);
  | - 'Wrong number of arguments is passed to NULLIF(): expected 2, got 3'
  | ...
 
+SELECT nullif(NULL, NULL);
+ | ---
+ | - metadata:
+ |   - name: nullif(NULL, NULL)
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT nullif(1, 1);
+ | ---
+ | - metadata:
+ |   - name: nullif(1, 1)
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT nullif(-1, -1);
+ | ---
+ | - metadata:
+ |   - name: nullif(-1, -1)
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT nullif(-1.5, -1.5);
+ | ---
+ | - metadata:
+ |   - name: nullif(-1.5, -1.5)
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT nullif(true, true);
+ | ---
+ | - metadata:
+ |   - name: nullif(true, true)
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT nullif('abc', 'abc');
+ | ---
+ | - metadata:
+ |   - name: nullif('abc', 'abc')
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT nullif(X'3334', X'3334');
+ | ---
+ | - metadata:
+ |   - name: nullif(X'3334', X'3334')
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+
 -- Function position
 SELECT position();
  | ---
@@ -337,366 +1025,1075 @@ SELECT position('12345', '2', 3);
  | - 'Wrong number of arguments is passed to POSITION(): expected 2, got 3'
  | ...
 
--- Function printf
-SELECT printf();
+SELECT position(NULL, NULL);
+ | ---
+ | - metadata:
+ |   - name: position(NULL, NULL)
+ |     type: integer
+ |   rows:
+ |   - [null]
+ | ...
+SELECT position(1, 1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert 1 to string'
+ | ...
+SELECT position(-1, -1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to string'
+ | ...
+SELECT position(-1.5, -1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to string'
+ | ...
+SELECT position(true, true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to string'
+ | ...
+SELECT position('abc', 'abc');
+ | ---
+ | - metadata:
+ |   - name: position('abc', 'abc')
+ |     type: integer
+ |   rows:
+ |   - [1]
+ | ...
+SELECT position(X'3334', X'3334');
+ | ---
+ | - metadata:
+ |   - name: position(X'3334', X'3334')
+ |     type: integer
+ |   rows:
+ |   - [1]
+ | ...
+
+-- Function printf
+SELECT printf();
+ | ---
+ | - metadata:
+ |   - name: printf()
+ |     type: string
+ |   rows:
+ |   - [null]
+ | ...
+SELECT printf('1');
+ | ---
+ | - metadata:
+ |   - name: printf('1')
+ |     type: string
+ |   rows:
+ |   - ['1']
+ | ...
+SELECT printf('1', 2);
+ | ---
+ | - metadata:
+ |   - name: printf('1', 2)
+ |     type: string
+ |   rows:
+ |   - ['1']
+ | ...
+SELECT printf('1', 2, 3);
+ | ---
+ | - metadata:
+ |   - name: printf('1', 2, 3)
+ |     type: string
+ |   rows:
+ |   - ['1']
+ | ...
+
+SELECT printf(NULL, NULL);
+ | ---
+ | - metadata:
+ |   - name: printf(NULL, NULL)
+ |     type: string
+ |   rows:
+ |   - [null]
+ | ...
+SELECT printf(1, 1);
+ | ---
+ | - metadata:
+ |   - name: printf(1, 1)
+ |     type: string
+ |   rows:
+ |   - ['1']
+ | ...
+SELECT printf(-1, -1);
+ | ---
+ | - metadata:
+ |   - name: printf(-1, -1)
+ |     type: string
+ |   rows:
+ |   - ['-1']
+ | ...
+SELECT printf(-1.5, -1.5);
+ | ---
+ | - metadata:
+ |   - name: printf(-1.5, -1.5)
+ |     type: string
+ |   rows:
+ |   - ['-1.5']
+ | ...
+SELECT printf(true, true);
+ | ---
+ | - metadata:
+ |   - name: printf(true, true)
+ |     type: string
+ |   rows:
+ |   - ['TRUE']
+ | ...
+SELECT printf('abc', 'abc');
+ | ---
+ | - metadata:
+ |   - name: printf('abc', 'abc')
+ |     type: string
+ |   rows:
+ |   - ['abc']
+ | ...
+SELECT printf(X'3334', X'3334');
+ | ---
+ | - metadata:
+ |   - name: printf(X'3334', X'3334')
+ |     type: string
+ |   rows:
+ |   - ['34']
+ | ...
+
+-- Function quote
+SELECT quote();
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to QUOTE(): expected 1, got 0'
+ | ...
+SELECT quote('1');
+ | ---
+ | - metadata:
+ |   - name: quote('1')
+ |     type: string
+ |   rows:
+ |   - ['''1''']
+ | ...
+SELECT quote('1', 2);
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to QUOTE(): expected 1, got 2'
+ | ...
+
+SELECT quote(NULL);
+ | ---
+ | - metadata:
+ |   - name: quote(NULL)
+ |     type: string
+ |   rows:
+ |   - ['NULL']
+ | ...
+SELECT quote(1);
+ | ---
+ | - metadata:
+ |   - name: quote(1)
+ |     type: string
+ |   rows:
+ |   - [1]
+ | ...
+SELECT quote(-1);
+ | ---
+ | - metadata:
+ |   - name: quote(-1)
+ |     type: string
+ |   rows:
+ |   - [-1]
+ | ...
+SELECT quote(-1.5);
+ | ---
+ | - metadata:
+ |   - name: quote(-1.5)
+ |     type: string
+ |   rows:
+ |   - ['-1.5']
+ | ...
+SELECT quote(true);
+ | ---
+ | - metadata:
+ |   - name: quote(true)
+ |     type: string
+ |   rows:
+ |   - ['TRUE']
+ | ...
+SELECT quote('abc');
+ | ---
+ | - metadata:
+ |   - name: quote('abc')
+ |     type: string
+ |   rows:
+ |   - ['''abc''']
+ | ...
+SELECT quote(X'3334');
+ | ---
+ | - metadata:
+ |   - name: quote(X'3334')
+ |     type: string
+ |   rows:
+ |   - ['X''3334''']
+ | ...
+
+-- Function random
+SELECT typeof(random());
+ | ---
+ | - metadata:
+ |   - name: typeof(random())
+ |     type: string
+ |   rows:
+ |   - ['integer']
+ | ...
+SELECT typeof(random(1));
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to RANDOM(): expected 0, got 1'
+ | ...
+
+-- Function randomblob
+SELECT typeof(randomblob());
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to RANDOMBLOB(): expected 1, got 0'
+ | ...
+SELECT typeof(randomblob(1));
+ | ---
+ | - metadata:
+ |   - name: typeof(randomblob(1))
+ |     type: string
+ |   rows:
+ |   - ['varbinary']
+ | ...
+SELECT typeof(randomblob(1, 2));
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to RANDOMBLOB(): expected 1, got 2'
+ | ...
+
+SELECT randomblob(NULL);
+ | ---
+ | - metadata:
+ |   - name: randomblob(NULL)
+ |     type: varbinary
+ |   rows:
+ |   - [null]
+ | ...
+SELECT typeof(randomblob(1));
+ | ---
+ | - metadata:
+ |   - name: typeof(randomblob(1))
+ |     type: string
+ |   rows:
+ |   - ['varbinary']
+ | ...
+SELECT typeof(randomblob(-1));
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to unsigned'
+ | ...
+SELECT typeof(randomblob(-1.5));
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to unsigned'
+ | ...
+SELECT typeof(randomblob(true));
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to unsigned'
+ | ...
+SELECT typeof(randomblob('abc'));
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert abc to unsigned'
+ | ...
+SELECT typeof(randomblob(X'3334'));
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert varbinary to unsigned'
+ | ...
+
+-- Function replace
+SELECT replace();
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to REPLACE(): expected 3, got 0'
+ | ...
+SELECT replace('12345');
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to REPLACE(): expected 3, got 1'
+ | ...
+SELECT replace('12345', '2');
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to REPLACE(): expected 3, got 2'
+ | ...
+SELECT replace('12345', '2', '3');
+ | ---
+ | - metadata:
+ |   - name: replace('12345', '2', '3')
+ |     type: string
+ |   rows:
+ |   - ['13345']
+ | ...
+SELECT replace('12345', '2', '3', 4);
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to REPLACE(): expected 3, got 4'
+ | ...
+
+SELECT replace(NULL, NULL, NULL);
+ | ---
+ | - metadata:
+ |   - name: replace(NULL, NULL, NULL)
+ |     type: string
+ |   rows:
+ |   - [null]
+ | ...
+SELECT replace(1, 1, 1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert 1 to string'
+ | ...
+SELECT replace(-1, -1, -1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to string'
+ | ...
+SELECT replace(-1.5, -1.5, -1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to string'
+ | ...
+SELECT replace(true, true, true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to string'
+ | ...
+SELECT replace('abc', 'abc', 'abc');
+ | ---
+ | - metadata:
+ |   - name: replace('abc', 'abc', 'abc')
+ |     type: string
+ |   rows:
+ |   - ['abc']
+ | ...
+SELECT replace(X'3334', X'3334', X'3334');
+ | ---
+ | - metadata:
+ |   - name: replace(X'3334', X'3334', X'3334')
+ |     type: string
+ |   rows:
+ |   - ['34']
+ | ...
+
+-- Function round
+SELECT round();
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to ROUND(): expected from 1 to 2, got 0'
+ | ...
+SELECT round(1.1245);
+ | ---
+ | - metadata:
+ |   - name: round(1.1245)
+ |     type: integer
+ |   rows:
+ |   - [1]
+ | ...
+SELECT round(1.1245, 2);
+ | ---
+ | - metadata:
+ |   - name: round(1.1245, 2)
+ |     type: integer
+ |   rows:
+ |   - [1.12]
+ | ...
+SELECT round(1.1245, 2, 3);
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to ROUND(): expected from 1 to 2, got 3'
+ | ...
+
+SELECT round(NULL, NULL);
+ | ---
+ | - metadata:
+ |   - name: round(NULL, NULL)
+ |     type: integer
+ |   rows:
+ |   - [null]
+ | ...
+SELECT round(1, 1);
+ | ---
+ | - metadata:
+ |   - name: round(1, 1)
+ |     type: integer
+ |   rows:
+ |   - [1]
+ | ...
+SELECT round(-1, -1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to unsigned'
+ | ...
+SELECT round(-1.5, -1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to unsigned'
+ | ...
+SELECT round(true, true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to double'
+ | ...
+SELECT round('abc', 'abc');
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert abc to double'
+ | ...
+SELECT round(X'3334', X'3334');
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert varbinary to double'
+ | ...
+
+-- Function row_count
+SELECT row_count();
+ | ---
+ | - metadata:
+ |   - name: row_count()
+ |     type: integer
+ |   rows:
+ |   - [0]
+ | ...
+SELECT row_count(1);
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to ROW_COUNT(): expected 0, got 1'
+ | ...
+
+-- Function soundex
+SELECT soundex();
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to SOUNDEX(): expected 1, got 0'
+ | ...
+SELECT soundex(1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert 1 to string'
+ | ...
+SELECT soundex(1, 2);
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to SOUNDEX(): expected 1, got 2'
+ | ...
+
+SELECT soundex(NULL);
+ | ---
+ | - metadata:
+ |   - name: soundex(NULL)
+ |     type: string
+ |   rows:
+ |   - ['?000']
+ | ...
+SELECT soundex(1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert 1 to string'
+ | ...
+SELECT soundex(-1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to string'
+ | ...
+SELECT soundex(-1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to string'
+ | ...
+SELECT soundex(true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to string'
+ | ...
+SELECT soundex('abc');
+ | ---
+ | - metadata:
+ |   - name: soundex('abc')
+ |     type: string
+ |   rows:
+ |   - ['A120']
+ | ...
+SELECT soundex(X'3334');
+ | ---
+ | - metadata:
+ |   - name: soundex(X'3334')
+ |     type: string
+ |   rows:
+ |   - ['?000']
+ | ...
+
+-- Function substr
+SELECT substr();
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to SUBSTR(): expected from 2 to 3, got 0'
+ | ...
+SELECT substr('12345');
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to SUBSTR(): expected from 2 to 3, got 1'
+ | ...
+SELECT substr('12345', 2);
+ | ---
+ | - metadata:
+ |   - name: substr('12345', 2)
+ |     type: string
+ |   rows:
+ |   - ['2345']
+ | ...
+SELECT substr('12345', 2, 3);
+ | ---
+ | - metadata:
+ |   - name: substr('12345', 2, 3)
+ |     type: string
+ |   rows:
+ |   - ['234']
+ | ...
+SELECT substr('12345', 2, 3, 4);
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to SUBSTR(): expected from 2 to 3, got 4'
+ | ...
+
+SELECT substr(NULL, NULL);
+ | ---
+ | - metadata:
+ |   - name: substr(NULL, NULL)
+ |     type: string
+ |   rows:
+ |   - [null]
+ | ...
+SELECT substr(1, 1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert 1 to string'
+ | ...
+SELECT substr(-1, -1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to string'
+ | ...
+SELECT substr(-1.5, -1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to string'
+ | ...
+SELECT substr(true, true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to string'
+ | ...
+SELECT substr('abc', 'abc');
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert abc to integer'
+ | ...
+SELECT substr(X'3334', X'3334');
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert varbinary to integer'
+ | ...
+
+-- Function typeof
+SELECT typeof();
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to TYPEOF(): expected 1, got 0'
+ | ...
+SELECT typeof(1);
+ | ---
+ | - metadata:
+ |   - name: typeof(1)
+ |     type: string
+ |   rows:
+ |   - ['integer']
+ | ...
+SELECT typeof(1, 2);
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to TYPEOF(): expected 1, got 2'
+ | ...
+
+SELECT typeof(NULL);
+ | ---
+ | - metadata:
+ |   - name: typeof(NULL)
+ |     type: string
+ |   rows:
+ |   - ['boolean']
+ | ...
+SELECT typeof(1);
+ | ---
+ | - metadata:
+ |   - name: typeof(1)
+ |     type: string
+ |   rows:
+ |   - ['integer']
+ | ...
+SELECT typeof(-1);
+ | ---
+ | - metadata:
+ |   - name: typeof(-1)
+ |     type: string
+ |   rows:
+ |   - ['integer']
+ | ...
+SELECT typeof(-1.5);
+ | ---
+ | - metadata:
+ |   - name: typeof(-1.5)
+ |     type: string
+ |   rows:
+ |   - ['double']
+ | ...
+SELECT typeof(true);
+ | ---
+ | - metadata:
+ |   - name: typeof(true)
+ |     type: string
+ |   rows:
+ |   - ['boolean']
+ | ...
+SELECT typeof('abc');
+ | ---
+ | - metadata:
+ |   - name: typeof('abc')
+ |     type: string
+ |   rows:
+ |   - ['string']
+ | ...
+SELECT typeof(X'3334');
+ | ---
+ | - metadata:
+ |   - name: typeof(X'3334')
+ |     type: string
+ |   rows:
+ |   - ['varbinary']
+ | ...
+
+-- Function unicode
+SELECT unicode();
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to UNICODE(): expected 1, got 0'
+ | ...
+SELECT unicode('1');
+ | ---
+ | - metadata:
+ |   - name: unicode('1')
+ |     type: string
+ |   rows:
+ |   - [49]
+ | ...
+SELECT unicode('1', '2');
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to UNICODE(): expected 1, got 2'
+ | ...
+
+SELECT unicode(NULL);
+ | ---
+ | - metadata:
+ |   - name: unicode(NULL)
+ |     type: string
+ |   rows:
+ |   - [null]
+ | ...
+SELECT unicode(1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert 1 to string'
+ | ...
+SELECT unicode(-1);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1 to string'
+ | ...
+SELECT unicode(-1.5);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert -1.5 to string'
+ | ...
+SELECT unicode(true);
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to string'
+ | ...
+SELECT unicode('abc');
+ | ---
+ | - metadata:
+ |   - name: unicode('abc')
+ |     type: string
+ |   rows:
+ |   - [97]
+ | ...
+SELECT unicode(X'3334');
+ | ---
+ | - metadata:
+ |   - name: unicode(X'3334')
+ |     type: string
+ |   rows:
+ |   - [51]
+ | ...
+
+-- Function unlikely
+SELECT unlikely();
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to UNLIKELY(): expected 1, got 0'
+ | ...
+SELECT unlikely(1);
+ | ---
+ | - metadata:
+ |   - name: unlikely(1)
+ |     type: integer
+ |   rows:
+ |   - [1]
+ | ...
+SELECT unlikely(1, 2);
+ | ---
+ | - null
+ | - 'Wrong number of arguments is passed to UNLIKELY(): expected 1, got 2'
+ | ...
+
+SELECT unlikely(NULL);
+ | ---
+ | - metadata:
+ |   - name: unlikely(NULL)
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT unlikely(1);
+ | ---
+ | - metadata:
+ |   - name: unlikely(1)
+ |     type: integer
+ |   rows:
+ |   - [1]
+ | ...
+SELECT unlikely(-1);
  | ---
  | - metadata:
- |   - name: printf()
- |     type: string
+ |   - name: unlikely(-1)
+ |     type: integer
  |   rows:
- |   - [null]
+ |   - [-1]
  | ...
-SELECT printf('1');
+SELECT unlikely(-1.5);
  | ---
  | - metadata:
- |   - name: printf('1')
- |     type: string
+ |   - name: unlikely(-1.5)
+ |     type: double
  |   rows:
- |   - ['1']
+ |   - [-1.5]
  | ...
-SELECT printf('1', 2);
+SELECT unlikely(true);
  | ---
  | - metadata:
- |   - name: printf('1', 2)
- |     type: string
+ |   - name: unlikely(true)
+ |     type: boolean
  |   rows:
- |   - ['1']
+ |   - [true]
  | ...
-SELECT printf('1', 2, 3);
+SELECT unlikely('abc');
  | ---
  | - metadata:
- |   - name: printf('1', 2, 3)
+ |   - name: unlikely('abc')
  |     type: string
  |   rows:
- |   - ['1']
+ |   - ['abc']
  | ...
-
--- Function quote
-SELECT quote();
- | ---
- | - null
- | - 'Wrong number of arguments is passed to QUOTE(): expected 1, got 0'
- | ...
-SELECT quote('1');
+SELECT unlikely(X'3334');
  | ---
  | - metadata:
- |   - name: quote('1')
- |     type: string
+ |   - name: unlikely(X'3334')
+ |     type: varbinary
  |   rows:
- |   - ['''1''']
+ |   - ['34']
  | ...
-SELECT quote('1', 2);
+
+-- Function upper
+SELECT upper();
  | ---
  | - null
- | - 'Wrong number of arguments is passed to QUOTE(): expected 1, got 2'
+ | - 'Wrong number of arguments is passed to UPPER(): expected 1, got 0'
  | ...
-
--- Function random
-SELECT typeof(random());
+SELECT upper('a');
  | ---
  | - metadata:
- |   - name: typeof(random())
+ |   - name: upper('a')
  |     type: string
  |   rows:
- |   - ['integer']
+ |   - ['A']
  | ...
-SELECT typeof(random(1));
+SELECT upper('a', 2);
  | ---
  | - null
- | - 'Wrong number of arguments is passed to RANDOM(): expected 0, got 1'
+ | - 'Wrong number of arguments is passed to UPPER(): expected 1, got 2'
  | ...
 
--- Function randomblob
-SELECT typeof(randomblob());
- | ---
- | - null
- | - 'Wrong number of arguments is passed to RANDOMBLOB(): expected 1, got 0'
- | ...
-SELECT typeof(randomblob(1));
+SELECT upper(NULL);
  | ---
  | - metadata:
- |   - name: typeof(randomblob(1))
+ |   - name: upper(NULL)
  |     type: string
  |   rows:
- |   - ['varbinary']
+ |   - [null]
  | ...
-SELECT typeof(randomblob(1, 2));
+SELECT upper(1);
  | ---
  | - null
- | - 'Wrong number of arguments is passed to RANDOMBLOB(): expected 1, got 2'
+ | - 'Type mismatch: can not convert 1 to string'
  | ...
-
--- Function replace
-SELECT replace();
+SELECT upper(-1);
  | ---
  | - null
- | - 'Wrong number of arguments is passed to REPLACE(): expected 3, got 0'
+ | - 'Type mismatch: can not convert -1 to string'
  | ...
-SELECT replace('12345');
+SELECT upper(-1.5);
  | ---
  | - null
- | - 'Wrong number of arguments is passed to REPLACE(): expected 3, got 1'
+ | - 'Type mismatch: can not convert -1.5 to string'
  | ...
-SELECT replace('12345', '2');
+SELECT upper(true);
  | ---
  | - null
- | - 'Wrong number of arguments is passed to REPLACE(): expected 3, got 2'
+ | - 'Type mismatch: can not convert TRUE to string'
  | ...
-SELECT replace('12345', '2', '3');
+SELECT upper('abc');
  | ---
  | - metadata:
- |   - name: replace('12345', '2', '3')
+ |   - name: upper('abc')
  |     type: string
  |   rows:
- |   - ['13345']
- | ...
-SELECT replace('12345', '2', '3', 4);
- | ---
- | - null
- | - 'Wrong number of arguments is passed to REPLACE(): expected 3, got 4'
- | ...
-
--- Function round
-SELECT round();
- | ---
- | - null
- | - 'Wrong number of arguments is passed to ROUND(): expected from 1 to 2, got 0'
- | ...
-SELECT round(1.1245);
- | ---
- | - metadata:
- |   - name: round(1.1245)
- |     type: integer
- |   rows:
- |   - [1]
+ |   - ['ABC']
  | ...
-SELECT round(1.1245, 2);
+SELECT upper(X'3334');
  | ---
  | - metadata:
- |   - name: round(1.1245, 2)
- |     type: integer
+ |   - name: upper(X'3334')
+ |     type: string
  |   rows:
- |   - [1.12]
- | ...
-SELECT round(1.1245, 2, 3);
- | ---
- | - null
- | - 'Wrong number of arguments is passed to ROUND(): expected from 1 to 2, got 3'
+ |   - ['34']
  | ...
 
--- Function row_count
-SELECT row_count();
+-- Function version
+SELECT typeof(version());
  | ---
  | - metadata:
- |   - name: row_count()
- |     type: integer
+ |   - name: typeof(version())
+ |     type: string
  |   rows:
- |   - [0]
+ |   - ['string']
  | ...
-SELECT row_count(1);
+SELECT typeof(version(1));
  | ---
  | - null
- | - 'Wrong number of arguments is passed to ROW_COUNT(): expected 0, got 1'
+ | - 'Wrong number of arguments is passed to VERSION(): expected 0, got 1'
  | ...
 
--- Function soundex
-SELECT soundex();
+-- Function zeroblob
+SELECT zeroblob();
  | ---
  | - null
- | - 'Wrong number of arguments is passed to SOUNDEX(): expected 1, got 0'
+ | - 'Wrong number of arguments is passed to ZEROBLOB(): expected 1, got 0'
  | ...
-SELECT soundex(1);
+SELECT zeroblob(1);
  | ---
  | - metadata:
- |   - name: soundex(1)
- |     type: string
+ |   - name: zeroblob(1)
+ |     type: varbinary
  |   rows:
- |   - ['?000']
+ |   - ["\0"]
  | ...
-SELECT soundex(1, 2);
+SELECT zeroblob(1, 2);
  | ---
  | - null
- | - 'Wrong number of arguments is passed to SOUNDEX(): expected 1, got 2'
+ | - 'Wrong number of arguments is passed to ZEROBLOB(): expected 1, got 2'
  | ...
 
--- Function substr
-SELECT substr();
- | ---
- | - null
- | - 'Wrong number of arguments is passed to SUBSTR(): expected from 2 to 3, got 0'
- | ...
-SELECT substr('12345');
- | ---
- | - null
- | - 'Wrong number of arguments is passed to SUBSTR(): expected from 2 to 3, got 1'
- | ...
-SELECT substr('12345', 2);
+SELECT zeroblob(NULL);
  | ---
  | - metadata:
- |   - name: substr('12345', 2)
- |     type: string
+ |   - name: zeroblob(NULL)
+ |     type: varbinary
  |   rows:
- |   - ['2345']
+ |   - ['']
  | ...
-SELECT substr('12345', 2, 3);
+SELECT zeroblob(1);
  | ---
  | - metadata:
- |   - name: substr('12345', 2, 3)
- |     type: string
+ |   - name: zeroblob(1)
+ |     type: varbinary
  |   rows:
- |   - ['234']
+ |   - ["\0"]
  | ...
-SELECT substr('12345', 2, 3, 4);
+SELECT zeroblob(-1);
  | ---
  | - null
- | - 'Wrong number of arguments is passed to SUBSTR(): expected from 2 to 3, got 4'
+ | - 'Type mismatch: can not convert -1 to unsigned'
  | ...
-
--- Function typeof
-SELECT typeof();
+SELECT zeroblob(-1.5);
  | ---
  | - null
- | - 'Wrong number of arguments is passed to TYPEOF(): expected 1, got 0'
+ | - 'Type mismatch: can not convert -1.5 to unsigned'
  | ...
-SELECT typeof(1);
+SELECT zeroblob(true);
  | ---
- | - metadata:
- |   - name: typeof(1)
- |     type: string
- |   rows:
- |   - ['integer']
+ | - null
+ | - 'Type mismatch: can not convert TRUE to unsigned'
  | ...
-SELECT typeof(1, 2);
+SELECT zeroblob('abc');
  | ---
  | - null
- | - 'Wrong number of arguments is passed to TYPEOF(): expected 1, got 2'
+ | - 'Type mismatch: can not convert abc to unsigned'
+ | ...
+SELECT zeroblob(X'3334');
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert varbinary to unsigned'
  | ...
 
--- Function unicode
-SELECT unicode();
+-- Function avg
+SELECT avg() FROM (values(1), (2), (3));
  | ---
  | - null
- | - 'Wrong number of arguments is passed to UNICODE(): expected 1, got 0'
+ | - 'Wrong number of arguments is passed to AVG(): expected 1, got 0'
  | ...
-SELECT unicode('1');
+SELECT avg("_auto_field_") FROM (values(1), (2), (3));
  | ---
  | - metadata:
- |   - name: unicode('1')
- |     type: string
+ |   - name: avg("_auto_field_")
+ |     type: number
  |   rows:
- |   - [49]
+ |   - [2]
  | ...
-SELECT unicode('1', '2');
+SELECT avg("_auto_field_", 2) FROM (values(1), (2), (3));
  | ---
  | - null
- | - 'Wrong number of arguments is passed to UNICODE(): expected 1, got 2'
+ | - 'Wrong number of arguments is passed to AVG(): expected 1, got 2'
  | ...
 
--- Function unlikely
-SELECT unlikely();
+SELECT avg("_auto_field_") FROM (values(NULL), (NULL), (NULL));
  | ---
- | - null
- | - 'Wrong number of arguments is passed to UNLIKELY(): expected 1, got 0'
+ | - metadata:
+ |   - name: avg("_auto_field_")
+ |     type: number
+ |   rows:
+ |   - [null]
  | ...
-SELECT unlikely(1);
+SELECT avg("_auto_field_") FROM (values(1), (1), (1));
  | ---
  | - metadata:
- |   - name: unlikely(1)
- |     type: integer
+ |   - name: avg("_auto_field_")
+ |     type: number
  |   rows:
  |   - [1]
  | ...
-SELECT unlikely(1, 2);
- | ---
- | - null
- | - 'Wrong number of arguments is passed to UNLIKELY(): expected 1, got 2'
- | ...
-
--- Function upper
-SELECT upper();
+SELECT avg("_auto_field_") FROM (values(-1), (-1), (-1));
  | ---
- | - null
- | - 'Wrong number of arguments is passed to UPPER(): expected 1, got 0'
+ | - metadata:
+ |   - name: avg("_auto_field_")
+ |     type: number
+ |   rows:
+ |   - [-1]
  | ...
-SELECT upper('a');
+SELECT avg("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
  | ---
  | - metadata:
- |   - name: upper('a')
- |     type: string
+ |   - name: avg("_auto_field_")
+ |     type: number
  |   rows:
- |   - ['A']
+ |   - [-1.5]
  | ...
-SELECT upper('a', 2);
+SELECT avg("_auto_field_") FROM (values(true), (true), (true));
  | ---
  | - null
- | - 'Wrong number of arguments is passed to UPPER(): expected 1, got 2'
+ | - 'Type mismatch: can not convert TRUE to number'
  | ...
-
--- Function version
-SELECT typeof(version());
+SELECT avg("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
  | ---
- | - metadata:
- |   - name: typeof(version())
- |     type: string
- |   rows:
- |   - ['string']
+ | - null
+ | - 'Type mismatch: can not convert abc to number'
  | ...
-SELECT typeof(version(1));
+SELECT avg("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
  | ---
  | - null
- | - 'Wrong number of arguments is passed to VERSION(): expected 0, got 1'
+ | - 'Type mismatch: can not convert varbinary to number'
  | ...
 
--- Function zeroblob
-SELECT zeroblob();
+-- Function count
+SELECT count() FROM (values(1), (2), (3));
  | ---
- | - null
- | - 'Wrong number of arguments is passed to ZEROBLOB(): expected 1, got 0'
+ | - metadata:
+ |   - name: count()
+ |     type: integer
+ |   rows:
+ |   - [3]
  | ...
-SELECT zeroblob(1);
+SELECT count("_auto_field_") FROM (values(1), (2), (3));
  | ---
  | - metadata:
- |   - name: zeroblob(1)
- |     type: varbinary
+ |   - name: count("_auto_field_")
+ |     type: integer
  |   rows:
- |   - ["\0"]
+ |   - [3]
  | ...
-SELECT zeroblob(1, 2);
+SELECT count("_auto_field_", 2) FROM (values(1), (2), (3));
  | ---
  | - null
- | - 'Wrong number of arguments is passed to ZEROBLOB(): expected 1, got 2'
+ | - 'Wrong number of arguments is passed to COUNT(): expected from 0 to 1, got 2'
  | ...
 
--- Function avg
-SELECT avg() FROM (values(1), (2), (3));
+SELECT count("_auto_field_") FROM (values(NULL), (NULL), (NULL));
  | ---
- | - null
- | - 'Wrong number of arguments is passed to AVG(): expected 1, got 0'
+ | - metadata:
+ |   - name: count("_auto_field_")
+ |     type: integer
+ |   rows:
+ |   - [0]
  | ...
-SELECT avg("_auto_field_") FROM (values(1), (2), (3));
+SELECT count("_auto_field_") FROM (values(1), (1), (1));
  | ---
  | - metadata:
- |   - name: avg("_auto_field_")
- |     type: number
+ |   - name: count("_auto_field_")
+ |     type: integer
  |   rows:
- |   - [2]
+ |   - [3]
  | ...
-SELECT avg("_auto_field_", 2) FROM (values(1), (2), (3));
+SELECT count("_auto_field_") FROM (values(-1), (-1), (-1));
  | ---
- | - null
- | - 'Wrong number of arguments is passed to AVG(): expected 1, got 2'
+ | - metadata:
+ |   - name: count("_auto_field_")
+ |     type: integer
+ |   rows:
+ |   - [3]
  | ...
-
--- Function count
-SELECT count() FROM (values(1), (2), (3));
+SELECT count("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
  | ---
  | - metadata:
- |   - name: count()
+ |   - name: count("_auto_field_")
  |     type: integer
  |   rows:
  |   - [3]
  | ...
-SELECT count("_auto_field_") FROM (values(1), (2), (3));
+SELECT count("_auto_field_") FROM (values(true), (true), (true));
  | ---
  | - metadata:
  |   - name: count("_auto_field_")
@@ -704,10 +2101,21 @@ SELECT count("_auto_field_") FROM (values(1), (2), (3));
  |   rows:
  |   - [3]
  | ...
-SELECT count("_auto_field_", 2) FROM (values(1), (2), (3));
+SELECT count("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
  | ---
- | - null
- | - 'Wrong number of arguments is passed to COUNT(): expected from 0 to 1, got 2'
+ | - metadata:
+ |   - name: count("_auto_field_")
+ |     type: integer
+ |   rows:
+ |   - [3]
+ | ...
+SELECT count("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+ | ---
+ | - metadata:
+ |   - name: count("_auto_field_")
+ |     type: integer
+ |   rows:
+ |   - [3]
  | ...
 
 -- Function group_concat
@@ -740,6 +2148,63 @@ SELECT group_concat("_auto_field_", '2', '3') FROM (values('1'), ('2'), ('3'));
  |   3'
  | ...
 
+SELECT group_concat("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+ | ---
+ | - metadata:
+ |   - name: group_concat("_auto_field_")
+ |     type: string
+ |   rows:
+ |   - [null]
+ | ...
+SELECT group_concat("_auto_field_") FROM (values(1), (1), (1));
+ | ---
+ | - metadata:
+ |   - name: group_concat("_auto_field_")
+ |     type: string
+ |   rows:
+ |   - ['1,1,1']
+ | ...
+SELECT group_concat("_auto_field_") FROM (values(-1), (-1), (-1));
+ | ---
+ | - metadata:
+ |   - name: group_concat("_auto_field_")
+ |     type: string
+ |   rows:
+ |   - ['-1,-1,-1']
+ | ...
+SELECT group_concat("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+ | ---
+ | - metadata:
+ |   - name: group_concat("_auto_field_")
+ |     type: string
+ |   rows:
+ |   - ['-1.5,-1.5,-1.5']
+ | ...
+SELECT group_concat("_auto_field_") FROM (values(true), (true), (true));
+ | ---
+ | - metadata:
+ |   - name: group_concat("_auto_field_")
+ |     type: string
+ |   rows:
+ |   - ['TRUE,TRUE,TRUE']
+ | ...
+SELECT group_concat("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+ | ---
+ | - metadata:
+ |   - name: group_concat("_auto_field_")
+ |     type: string
+ |   rows:
+ |   - ['abc,abc,abc']
+ | ...
+SELECT group_concat("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+ | ---
+ | - metadata:
+ |   - name: group_concat("_auto_field_")
+ |     type: string
+ |   rows:
+ |   - ['34,34,34']
+ | ...
+
 -- Function max
 SELECT max() FROM (values(1), (2), (3));
  | ---
@@ -760,6 +2225,63 @@ SELECT max("_auto_field_", 2) FROM (values(1), (2), (3));
  | - 'Wrong number of arguments is passed to MAX(): expected 1, got 2'
  | ...
 
+SELECT max("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+ | ---
+ | - metadata:
+ |   - name: max("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT max("_auto_field_") FROM (values(1), (1), (1));
+ | ---
+ | - metadata:
+ |   - name: max("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - [1]
+ | ...
+SELECT max("_auto_field_") FROM (values(-1), (-1), (-1));
+ | ---
+ | - metadata:
+ |   - name: max("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - [-1]
+ | ...
+SELECT max("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+ | ---
+ | - metadata:
+ |   - name: max("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - [-1.5]
+ | ...
+SELECT max("_auto_field_") FROM (values(true), (true), (true));
+ | ---
+ | - metadata:
+ |   - name: max("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - [true]
+ | ...
+SELECT max("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+ | ---
+ | - metadata:
+ |   - name: max("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - ['abc']
+ | ...
+SELECT max("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+ | ---
+ | - metadata:
+ |   - name: max("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - ['34']
+ | ...
+
 -- Function min
 SELECT min() FROM (values(1), (2), (3));
  | ---
@@ -780,6 +2302,63 @@ SELECT min("_auto_field_", 2) FROM (values(1), (2), (3));
  | - 'Wrong number of arguments is passed to MIN(): expected 1, got 2'
  | ...
 
+SELECT min("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+ | ---
+ | - metadata:
+ |   - name: min("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - [null]
+ | ...
+SELECT min("_auto_field_") FROM (values(1), (1), (1));
+ | ---
+ | - metadata:
+ |   - name: min("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - [1]
+ | ...
+SELECT min("_auto_field_") FROM (values(-1), (-1), (-1));
+ | ---
+ | - metadata:
+ |   - name: min("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - [-1]
+ | ...
+SELECT min("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+ | ---
+ | - metadata:
+ |   - name: min("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - [-1.5]
+ | ...
+SELECT min("_auto_field_") FROM (values(true), (true), (true));
+ | ---
+ | - metadata:
+ |   - name: min("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - [true]
+ | ...
+SELECT min("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+ | ---
+ | - metadata:
+ |   - name: min("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - ['abc']
+ | ...
+SELECT min("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+ | ---
+ | - metadata:
+ |   - name: min("_auto_field_")
+ |     type: scalar
+ |   rows:
+ |   - ['34']
+ | ...
+
 -- Function sum
 SELECT sum() FROM (values(1), (2), (3));
  | ---
@@ -800,6 +2379,54 @@ SELECT sum("_auto_field_", 2) FROM (values(1), (2), (3));
  | - 'Wrong number of arguments is passed to SUM(): expected 1, got 2'
  | ...
 
+SELECT sum("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+ | ---
+ | - metadata:
+ |   - name: sum("_auto_field_")
+ |     type: number
+ |   rows:
+ |   - [null]
+ | ...
+SELECT sum("_auto_field_") FROM (values(1), (1), (1));
+ | ---
+ | - metadata:
+ |   - name: sum("_auto_field_")
+ |     type: number
+ |   rows:
+ |   - [3]
+ | ...
+SELECT sum("_auto_field_") FROM (values(-1), (-1), (-1));
+ | ---
+ | - metadata:
+ |   - name: sum("_auto_field_")
+ |     type: number
+ |   rows:
+ |   - [-3]
+ | ...
+SELECT sum("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+ | ---
+ | - metadata:
+ |   - name: sum("_auto_field_")
+ |     type: number
+ |   rows:
+ |   - [-4.5]
+ | ...
+SELECT sum("_auto_field_") FROM (values(true), (true), (true));
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to number'
+ | ...
+SELECT sum("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert abc to number'
+ | ...
+SELECT sum("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert varbinary to number'
+ | ...
+
 -- Function total
 SELECT total() FROM (values(1), (2), (3));
  | ---
@@ -819,3 +2446,51 @@ SELECT total("_auto_field_", 2) FROM (values(1), (2), (3));
  | - null
  | - 'Wrong number of arguments is passed to TOTAL(): expected 1, got 2'
  | ...
+
+SELECT total("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+ | ---
+ | - metadata:
+ |   - name: total("_auto_field_")
+ |     type: number
+ |   rows:
+ |   - [0]
+ | ...
+SELECT total("_auto_field_") FROM (values(1), (1), (1));
+ | ---
+ | - metadata:
+ |   - name: total("_auto_field_")
+ |     type: number
+ |   rows:
+ |   - [3]
+ | ...
+SELECT total("_auto_field_") FROM (values(-1), (-1), (-1));
+ | ---
+ | - metadata:
+ |   - name: total("_auto_field_")
+ |     type: number
+ |   rows:
+ |   - [-3]
+ | ...
+SELECT total("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+ | ---
+ | - metadata:
+ |   - name: total("_auto_field_")
+ |     type: number
+ |   rows:
+ |   - [-4.5]
+ | ...
+SELECT total("_auto_field_") FROM (values(true), (true), (true));
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert TRUE to number'
+ | ...
+SELECT total("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert abc to number'
+ | ...
+SELECT total("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+ | ---
+ | - null
+ | - 'Type mismatch: can not convert varbinary to number'
+ | ...
diff --git a/test/sql/gh-4159-function-argumens.test.sql b/test/sql/gh-4159-function-argumens.test.sql
index 7578768cb..e45f62d91 100644
--- a/test/sql/gh-4159-function-argumens.test.sql
+++ b/test/sql/gh-4159-function-argumens.test.sql
@@ -3,92 +3,228 @@ SELECT abs();
 SELECT abs(1);
 SELECT abs(1, 2);
 
+SELECT abs(NULL);
+SELECT abs(1);
+SELECT abs(-1);
+SELECT abs(-1.5);
+SELECT abs(true);
+SELECT abs('abc');
+SELECT abs(X'3334');
+
 -- Function char().
 SELECT char();
 SELECT char(1);
 SELECT char(1, 2);
 
+SELECT char(NULL);
+SELECT char(1);
+SELECT char(-1);
+SELECT char(-1.5);
+-- SELECT char(true);
+-- SELECT char('abc');
+-- SELECT char(X'3334');
+
 -- Function character_length().
 SELECT character_length();
 SELECT character_length('1');
 SELECT character_length('1', '2');
 
+SELECT character_length(NULL);
+SELECT character_length(1);
+SELECT character_length(-1);
+SELECT character_length(-1.5);
+SELECT character_length(true);
+SELECT character_length('abc');
+SELECT character_length(X'3334');
+
 -- Function char_length().
 SELECT char_length();
 SELECT char_length('1');
 SELECT char_length('1', '2');
 
+SELECT char_length(NULL);
+SELECT char_length(1);
+SELECT char_length(-1);
+SELECT char_length(-1.5);
+SELECT char_length(true);
+SELECT char_length('abc');
+SELECT char_length(X'3334');
+
 -- Function coalesce().
 SELECT coalesce();
 SELECT coalesce('1');
 SELECT coalesce('1', '2');
 SELECT coalesce('1', '2', '3');
 
+SELECT coalesce(NULL, NULL);
+SELECT coalesce(1, 1);
+SELECT coalesce(-1, -1);
+SELECT coalesce(-1.5, -1.5);
+SELECT coalesce(true, true);
+SELECT coalesce('abc', 'abc');
+SELECT coalesce(X'3334', X'3334');
+
 -- Function greatest().
 SELECT greatest();
 SELECT greatest('1');
 SELECT greatest('1', '2');
 
+SELECT greatest(NULL, NULL);
+SELECT greatest(1, 1);
+SELECT greatest(-1, -1);
+SELECT greatest(-1.5, -1.5);
+SELECT greatest(true, true);
+SELECT greatest('abc', 'abc');
+SELECT greatest(X'3334', X'3334');
+
 -- Function hex().
 SELECT hex();
 SELECT hex(X'33');
 SELECT hex(X'33', X'33');
 
+SELECT hex(NULL);
+SELECT hex(1);
+SELECT hex(-1);
+SELECT hex(-1.5);
+SELECT hex(true);
+SELECT hex('abc');
+SELECT hex(X'3334');
+
 -- Function ifnull
 SELECT ifnull();
 SELECT ifnull(1);
 SELECT ifnull(1, 2);
 SELECT ifnull(1, 2, 3);
 
+SELECT ifnull(NULL, NULL);
+SELECT ifnull(1, 1);
+SELECT ifnull(-1, -1);
+SELECT ifnull(-1.5, -1.5);
+SELECT ifnull(true, true);
+SELECT ifnull('abc', 'abc');
+SELECT ifnull(X'3334', X'3334');
+
 -- Function least().
 SELECT least();
 SELECT least('1');
 SELECT least('1', '2');
 
+SELECT least(NULL, NULL);
+SELECT least(1, 1);
+SELECT least(-1, -1);
+SELECT least(-1.5, -1.5);
+SELECT least(true, true);
+SELECT least('abc', 'abc');
+SELECT least(X'3334', X'3334');
+
 -- Function length().
 SELECT length();
 SELECT length('1');
 SELECT length('1', '2');
 
+SELECT length(NULL);
+SELECT length(1);
+SELECT length(-1);
+SELECT length(-1.5);
+SELECT length(true);
+SELECT length('abc');
+SELECT length(X'3334');
+
 -- Function likelihood
 SELECT likelihood();
 SELECT likelihood(1);
 SELECT likelihood(1, 0.5);
 SELECT likelihood(1, 0.5, 3);
 
+SELECT likelihood(NULL, NULL);
+SELECT likelihood(1, 1);
+SELECT likelihood(-1, -1);
+SELECT likelihood(-1.5, -1.5);
+SELECT likelihood(true, true);
+SELECT likelihood('abc', 'abc');
+SELECT likelihood(X'3334', X'3334');
+
 -- Function likely
 SELECT likely();
 SELECT likely(1);
 SELECT likely(1, 2);
 
+SELECT likely(NULL);
+SELECT likely(1);
+SELECT likely(-1);
+SELECT likely(-1.5);
+SELECT likely(true);
+SELECT likely('abc');
+SELECT likely(X'3334');
+
 -- Function lower
 SELECT lower();
 SELECT lower('a');
 SELECT lower('a', 2);
 
+SELECT lower(NULL);
+SELECT lower(1);
+SELECT lower(-1);
+SELECT lower(-1.5);
+SELECT lower(true);
+SELECT lower('abc');
+SELECT lower(X'3334');
+
 -- Function nullif
 SELECT nullif();
 SELECT nullif(1);
 SELECT nullif(1, 2);
 SELECT nullif(1, 2, 3);
 
+SELECT nullif(NULL, NULL);
+SELECT nullif(1, 1);
+SELECT nullif(-1, -1);
+SELECT nullif(-1.5, -1.5);
+SELECT nullif(true, true);
+SELECT nullif('abc', 'abc');
+SELECT nullif(X'3334', X'3334');
+
 -- Function position
 SELECT position();
 SELECT position('12345');
 SELECT position('12345', '2');
 SELECT position('12345', '2', 3);
 
+SELECT position(NULL, NULL);
+SELECT position(1, 1);
+SELECT position(-1, -1);
+SELECT position(-1.5, -1.5);
+SELECT position(true, true);
+SELECT position('abc', 'abc');
+SELECT position(X'3334', X'3334');
+
 -- Function printf
 SELECT printf();
 SELECT printf('1');
 SELECT printf('1', 2);
 SELECT printf('1', 2, 3);
 
+SELECT printf(NULL, NULL);
+SELECT printf(1, 1);
+SELECT printf(-1, -1);
+SELECT printf(-1.5, -1.5);
+SELECT printf(true, true);
+SELECT printf('abc', 'abc');
+SELECT printf(X'3334', X'3334');
+
 -- Function quote
 SELECT quote();
 SELECT quote('1');
 SELECT quote('1', 2);
 
+SELECT quote(NULL);
+SELECT quote(1);
+SELECT quote(-1);
+SELECT quote(-1.5);
+SELECT quote(true);
+SELECT quote('abc');
+SELECT quote(X'3334');
+
 -- Function random
 SELECT typeof(random());
 SELECT typeof(random(1));
@@ -98,6 +234,14 @@ SELECT typeof(randomblob());
 SELECT typeof(randomblob(1));
 SELECT typeof(randomblob(1, 2));
 
+SELECT randomblob(NULL);
+SELECT typeof(randomblob(1));
+SELECT typeof(randomblob(-1));
+SELECT typeof(randomblob(-1.5));
+SELECT typeof(randomblob(true));
+SELECT typeof(randomblob('abc'));
+SELECT typeof(randomblob(X'3334'));
+
 -- Function replace
 SELECT replace();
 SELECT replace('12345');
@@ -105,12 +249,28 @@ SELECT replace('12345', '2');
 SELECT replace('12345', '2', '3');
 SELECT replace('12345', '2', '3', 4);
 
+SELECT replace(NULL, NULL, NULL);
+SELECT replace(1, 1, 1);
+SELECT replace(-1, -1, -1);
+SELECT replace(-1.5, -1.5, -1.5);
+SELECT replace(true, true, true);
+SELECT replace('abc', 'abc', 'abc');
+SELECT replace(X'3334', X'3334', X'3334');
+
 -- Function round
 SELECT round();
 SELECT round(1.1245);
 SELECT round(1.1245, 2);
 SELECT round(1.1245, 2, 3);
 
+SELECT round(NULL, NULL);
+SELECT round(1, 1);
+SELECT round(-1, -1);
+SELECT round(-1.5, -1.5);
+SELECT round(true, true);
+SELECT round('abc', 'abc');
+SELECT round(X'3334', X'3334');
+
 -- Function row_count
 SELECT row_count();
 SELECT row_count(1);
@@ -120,6 +280,14 @@ SELECT soundex();
 SELECT soundex(1);
 SELECT soundex(1, 2);
 
+SELECT soundex(NULL);
+SELECT soundex(1);
+SELECT soundex(-1);
+SELECT soundex(-1.5);
+SELECT soundex(true);
+SELECT soundex('abc');
+SELECT soundex(X'3334');
+
 -- Function substr
 SELECT substr();
 SELECT substr('12345');
@@ -127,26 +295,66 @@ SELECT substr('12345', 2);
 SELECT substr('12345', 2, 3);
 SELECT substr('12345', 2, 3, 4);
 
+SELECT substr(NULL, NULL);
+SELECT substr(1, 1);
+SELECT substr(-1, -1);
+SELECT substr(-1.5, -1.5);
+SELECT substr(true, true);
+SELECT substr('abc', 'abc');
+SELECT substr(X'3334', X'3334');
+
 -- Function typeof
 SELECT typeof();
 SELECT typeof(1);
 SELECT typeof(1, 2);
 
+SELECT typeof(NULL);
+SELECT typeof(1);
+SELECT typeof(-1);
+SELECT typeof(-1.5);
+SELECT typeof(true);
+SELECT typeof('abc');
+SELECT typeof(X'3334');
+
 -- Function unicode
 SELECT unicode();
 SELECT unicode('1');
 SELECT unicode('1', '2');
 
+SELECT unicode(NULL);
+SELECT unicode(1);
+SELECT unicode(-1);
+SELECT unicode(-1.5);
+SELECT unicode(true);
+SELECT unicode('abc');
+SELECT unicode(X'3334');
+
 -- Function unlikely
 SELECT unlikely();
 SELECT unlikely(1);
 SELECT unlikely(1, 2);
 
+SELECT unlikely(NULL);
+SELECT unlikely(1);
+SELECT unlikely(-1);
+SELECT unlikely(-1.5);
+SELECT unlikely(true);
+SELECT unlikely('abc');
+SELECT unlikely(X'3334');
+
 -- Function upper
 SELECT upper();
 SELECT upper('a');
 SELECT upper('a', 2);
 
+SELECT upper(NULL);
+SELECT upper(1);
+SELECT upper(-1);
+SELECT upper(-1.5);
+SELECT upper(true);
+SELECT upper('abc');
+SELECT upper(X'3334');
+
 -- Function version
 SELECT typeof(version());
 SELECT typeof(version(1));
@@ -156,38 +364,102 @@ SELECT zeroblob();
 SELECT zeroblob(1);
 SELECT zeroblob(1, 2);
 
+SELECT zeroblob(NULL);
+SELECT zeroblob(1);
+SELECT zeroblob(-1);
+SELECT zeroblob(-1.5);
+SELECT zeroblob(true);
+SELECT zeroblob('abc');
+SELECT zeroblob(X'3334');
+
 -- Function avg
 SELECT avg() FROM (values(1), (2), (3));
 SELECT avg("_auto_field_") FROM (values(1), (2), (3));
 SELECT avg("_auto_field_", 2) FROM (values(1), (2), (3));
 
+SELECT avg("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+SELECT avg("_auto_field_") FROM (values(1), (1), (1));
+SELECT avg("_auto_field_") FROM (values(-1), (-1), (-1));
+SELECT avg("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+SELECT avg("_auto_field_") FROM (values(true), (true), (true));
+SELECT avg("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+SELECT avg("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+
 -- Function count
 SELECT count() FROM (values(1), (2), (3));
 SELECT count("_auto_field_") FROM (values(1), (2), (3));
 SELECT count("_auto_field_", 2) FROM (values(1), (2), (3));
 
+SELECT count("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+SELECT count("_auto_field_") FROM (values(1), (1), (1));
+SELECT count("_auto_field_") FROM (values(-1), (-1), (-1));
+SELECT count("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+SELECT count("_auto_field_") FROM (values(true), (true), (true));
+SELECT count("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+SELECT count("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+
 -- Function group_concat
 SELECT group_concat() FROM (values('1'), ('2'), ('3'));
 SELECT group_concat("_auto_field_") FROM (values('1'), ('2'), ('3'));
 SELECT group_concat("_auto_field_", '2') FROM (values('1'), ('2'), ('3'));
 SELECT group_concat("_auto_field_", '2', '3') FROM (values('1'), ('2'), ('3'));
 
+SELECT group_concat("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+SELECT group_concat("_auto_field_") FROM (values(1), (1), (1));
+SELECT group_concat("_auto_field_") FROM (values(-1), (-1), (-1));
+SELECT group_concat("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+SELECT group_concat("_auto_field_") FROM (values(true), (true), (true));
+SELECT group_concat("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+SELECT group_concat("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+
 -- Function max
 SELECT max() FROM (values(1), (2), (3));
 SELECT max("_auto_field_") FROM (values(1), (2), (3));
 SELECT max("_auto_field_", 2) FROM (values(1), (2), (3));
 
+SELECT max("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+SELECT max("_auto_field_") FROM (values(1), (1), (1));
+SELECT max("_auto_field_") FROM (values(-1), (-1), (-1));
+SELECT max("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+SELECT max("_auto_field_") FROM (values(true), (true), (true));
+SELECT max("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+SELECT max("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+
 -- Function min
 SELECT min() FROM (values(1), (2), (3));
 SELECT min("_auto_field_") FROM (values(1), (2), (3));
 SELECT min("_auto_field_", 2) FROM (values(1), (2), (3));
 
+SELECT min("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+SELECT min("_auto_field_") FROM (values(1), (1), (1));
+SELECT min("_auto_field_") FROM (values(-1), (-1), (-1));
+SELECT min("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+SELECT min("_auto_field_") FROM (values(true), (true), (true));
+SELECT min("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+SELECT min("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+
 -- Function sum
 SELECT sum() FROM (values(1), (2), (3));
 SELECT sum("_auto_field_") FROM (values(1), (2), (3));
 SELECT sum("_auto_field_", 2) FROM (values(1), (2), (3));
 
+SELECT sum("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+SELECT sum("_auto_field_") FROM (values(1), (1), (1));
+SELECT sum("_auto_field_") FROM (values(-1), (-1), (-1));
+SELECT sum("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+SELECT sum("_auto_field_") FROM (values(true), (true), (true));
+SELECT sum("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+SELECT sum("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
+
 -- Function total
 SELECT total() FROM (values(1), (2), (3));
 SELECT total("_auto_field_") FROM (values(1), (2), (3));
 SELECT total("_auto_field_", 2) FROM (values(1), (2), (3));
+
+SELECT total("_auto_field_") FROM (values(NULL), (NULL), (NULL));
+SELECT total("_auto_field_") FROM (values(1), (1), (1));
+SELECT total("_auto_field_") FROM (values(-1), (-1), (-1));
+SELECT total("_auto_field_") FROM (values(-1.5), (-1.5), (-1.5));
+SELECT total("_auto_field_") FROM (values(true), (true), (true));
+SELECT total("_auto_field_") FROM (values('abc'), ('abc'), ('abc'));
+SELECT total("_auto_field_") FROM (values(X'3334'), (X'3334'), (X'3334'));
diff --git a/test/sql/types.result b/test/sql/types.result
index 70fbbc5a2..0fdfa1283 100644
--- a/test/sql/types.result
+++ b/test/sql/types.result
@@ -208,32 +208,29 @@ box.execute("CREATE TABLE t1 (s SCALAR PRIMARY KEY);")
 ---
 - row_count: 1
 ...
-box.execute("INSERT INTO t1 VALUES (randomblob(5));")
+box.execute("INSERT INTO t1 VALUES (X'FF3435');")
 ---
 - row_count: 1
 ...
 box.execute("SELECT * FROM t1 WHERE s LIKE 'blob';")
 ---
 - null
-- 'Inconsistent types: expected text got varbinary'
+- 'Type mismatch: can not convert varbinary to string'
 ...
 box.execute("SELECT * FROM t1 WHERE 'blob' LIKE s;")
 ---
 - null
-- 'Inconsistent types: expected text got varbinary'
+- 'Type mismatch: can not convert varbinary to string'
 ...
 box.execute("SELECT * FROM t1 WHERE 'blob' LIKE x'0000';")
 ---
 - null
-- 'Inconsistent types: expected text got varbinary'
+- 'Type mismatch: can not convert varbinary to string'
 ...
 box.execute("SELECT s LIKE NULL FROM t1;")
 ---
-- metadata:
-  - name: s LIKE NULL
-    type: integer
-  rows:
-  - [null]
+- null
+- 'Type mismatch: can not convert varbinary to string'
 ...
 box.execute("DELETE FROM t1;")
 ---
@@ -246,20 +243,17 @@ box.execute("INSERT INTO t1 VALUES (1);")
 box.execute("SELECT * FROM t1 WHERE s LIKE 'int';")
 ---
 - null
-- 'Inconsistent types: expected text got unsigned'
+- 'Type mismatch: can not convert 1 to string'
 ...
 box.execute("SELECT * FROM t1 WHERE 'int' LIKE 4;")
 ---
 - null
-- 'Inconsistent types: expected text got unsigned'
+- 'Type mismatch: can not convert 4 to string'
 ...
 box.execute("SELECT NULL LIKE s FROM t1;")
 ---
-- metadata:
-  - name: NULL LIKE s
-    type: integer
-  rows:
-  - [null]
+- null
+- 'Type mismatch: can not convert 1 to string'
 ...
 box.space.T1:drop()
 ---
@@ -830,19 +824,13 @@ box.execute("DELETE FROM t WHERE i < 18446744073709551613;")
 ...
 box.execute("SELECT lower(i) FROM t;")
 ---
-- metadata:
-  - name: lower(i)
-    type: string
-  rows:
-  - ['18446744073709551613']
+- null
+- 'Type mismatch: can not convert 18446744073709551613 to string'
 ...
 box.execute("SELECT upper(i) FROM t;")
 ---
-- metadata:
-  - name: upper(i)
-    type: string
-  rows:
-  - ['18446744073709551613']
+- null
+- 'Type mismatch: can not convert 18446744073709551613 to string'
 ...
 box.execute("SELECT abs(i) FROM t;")
 ---
@@ -1315,18 +1303,24 @@ box.execute("SELECT group_concat(v) FROM t;")
 ...
 box.execute("SELECT lower(v) FROM t;")
 ---
-- null
-- 'Inconsistent types: expected text got varbinary'
+- metadata:
+  - name: lower(v)
+    type: string
+  rows:
+  - ['abc']
 ...
 box.execute("SELECT upper(v) FROM t;")
 ---
-- null
-- 'Inconsistent types: expected text got varbinary'
+- metadata:
+  - name: upper(v)
+    type: string
+  rows:
+  - ['ABC']
 ...
 box.execute("SELECT abs(v) FROM t;")
 ---
 - null
-- 'Inconsistent types: expected number got varbinary'
+- 'Type mismatch: can not convert varbinary to number'
 ...
 box.execute("SELECT typeof(v) FROM t;")
 ---
@@ -1883,25 +1877,13 @@ box.execute("SELECT group_concat(d) FROM t;")
 ...
 box.execute("SELECT lower(d) FROM t;")
 ---
-- metadata:
-  - name: lower(d)
-    type: string
-  rows:
-  - ['10.0']
-  - ['-2.0']
-  - ['3.3']
-  - ['1.8e+19']
+- null
+- 'Type mismatch: can not convert 10.0 to string'
 ...
 box.execute("SELECT upper(d) FROM t;")
 ---
-- metadata:
-  - name: upper(d)
-    type: string
-  rows:
-  - ['10.0']
-  - ['-2.0']
-  - ['3.3']
-  - ['1.8E+19']
+- null
+- 'Type mismatch: can not convert 10.0 to string'
 ...
 box.execute("SELECT abs(d) FROM t;")
 ---
diff --git a/test/sql/types.test.lua b/test/sql/types.test.lua
index 2dc70f3c5..07158708e 100644
--- a/test/sql/types.test.lua
+++ b/test/sql/types.test.lua
@@ -59,7 +59,7 @@ box.execute("VALUES (TYPEOF(randomblob(5) || zeroblob(5)));")
 -- gh-3954: LIKE accepts only arguments of type TEXT and NULLs.
 --
 box.execute("CREATE TABLE t1 (s SCALAR PRIMARY KEY);")
-box.execute("INSERT INTO t1 VALUES (randomblob(5));")
+box.execute("INSERT INTO t1 VALUES (X'FF3435');")
 box.execute("SELECT * FROM t1 WHERE s LIKE 'blob';")
 box.execute("SELECT * FROM t1 WHERE 'blob' LIKE s;")
 box.execute("SELECT * FROM t1 WHERE 'blob' LIKE x'0000';")
-- 
2.25.1



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