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From: Mergen Imeev via Tarantool-patches <tarantool-patches@dev.tarantool.org>
To: v.shpilevoy@tarantool.org
Cc: tarantool-patches@dev.tarantool.org
Subject: [Tarantool-patches] [PATCH v1 1/8] sql: refactor ABS() funcion
Date: Fri,  1 Oct 2021 19:29:25 +0300
Message-ID: <1243ff4d634abefca92dd265e81a64a4d347b56b.1633105483.git.imeevma@gmail.com> (raw)
In-Reply-To: <cover.1633105483.git.imeevma@gmail.com>

Part of #4145
---
 src/box/sql/func.c | 83 +++++++++++++++++-----------------------------
 1 file changed, 30 insertions(+), 53 deletions(-)

diff --git a/src/box/sql/func.c b/src/box/sql/func.c
index b23636d7e..54b03f359 100644
--- a/src/box/sql/func.c
+++ b/src/box/sql/func.c
@@ -237,6 +237,32 @@ step_group_concat(struct sql_context *ctx, int argc, struct Mem *argv)
 		ctx->is_aborted = true;
 }
 
+/** Implementations of the ABS() function. */
+static void
+func_abs_int(struct sql_context *ctx, int argc, struct Mem *argv)
+{
+	assert(argc == 1);
+	(void)argc;
+	struct Mem *arg = &argv[0];
+	if (arg->type == MEM_TYPE_NULL)
+		return;
+	assert(mem_is_int(arg));
+	uint64_t u = mem_is_uint(arg) ? arg->u.u : (uint64_t)-arg->u.i;
+	mem_set_uint(ctx->pOut, u);
+}
+
+static void
+func_abs_double(struct sql_context *ctx, int argc, struct Mem *argv)
+{
+	assert(argc == 1);
+	(void)argc;
+	struct Mem *arg = &argv[0];
+	if (arg->type == MEM_TYPE_NULL)
+		return;
+	assert(arg->type == MEM_TYPE_DOUBLE);
+	mem_set_double(ctx->pOut, arg->u.r < 0 ? -arg->u.r : arg->u.r);
+}
+
 static const unsigned char *
 mem_as_ustr(struct Mem *mem)
 {
@@ -400,57 +426,6 @@ lengthFunc(struct sql_context *context, int argc, struct Mem *argv)
 	}
 }
 
-/*
- * Implementation of the abs() function.
- *
- * IMP: R-23979-26855 The abs(X) function returns the absolute value of
- * the numeric argument X.
- */
-static void
-absFunc(struct sql_context *context, int argc, struct Mem *argv)
-{
-	assert(argc == 1);
-	UNUSED_PARAMETER(argc);
-	switch (sql_value_type(&argv[0])) {
-	case MP_UINT: {
-		sql_result_uint(context, mem_get_uint_unsafe(&argv[0]));
-		break;
-	}
-	case MP_INT: {
-		int64_t value = mem_get_int_unsafe(&argv[0]);
-		assert(value < 0);
-		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_EXT:
-	case MP_ARRAY:
-	case MP_MAP: {
-		diag_set(ClientError, ER_INCONSISTENT_TYPES, "number",
-			 mem_str(&argv[0]));
-		context->is_aborted = true;
-		return;
-	}
-	default:{
-			/*
-			 * Abs(X) returns 0.0 if X is a string or blob
-			 * that cannot be converted to a numeric value.
-			 */
-			double rVal = mem_get_double_unsafe(&argv[0]);
-			if (rVal < 0)
-				rVal = -rVal;
-			sql_result_double(context, rVal);
-			break;
-		}
-	}
-}
-
 /**
  * Implementation of the position() function.
  *
@@ -1936,8 +1911,10 @@ struct sql_func_definition {
  * function should be defined in succession.
  */
 static struct sql_func_definition definitions[] = {
-	{"ABS", 1, {FIELD_TYPE_INTEGER}, FIELD_TYPE_INTEGER, absFunc, NULL},
-	{"ABS", 1, {FIELD_TYPE_DOUBLE}, FIELD_TYPE_DOUBLE, absFunc, NULL},
+	{"ABS", 1, {FIELD_TYPE_INTEGER}, FIELD_TYPE_INTEGER, func_abs_int,
+	 NULL},
+	{"ABS", 1, {FIELD_TYPE_DOUBLE}, FIELD_TYPE_DOUBLE, func_abs_double,
+	 NULL},
 	{"AVG", 1, {FIELD_TYPE_INTEGER}, FIELD_TYPE_INTEGER, step_avg, fin_avg},
 	{"AVG", 1, {FIELD_TYPE_DOUBLE}, FIELD_TYPE_DOUBLE, step_avg, fin_avg},
 	{"CHAR", -1, {FIELD_TYPE_INTEGER}, FIELD_TYPE_STRING, charFunc, NULL},
-- 
2.25.1


  reply	other threads:[~2021-10-01 16:29 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-01 16:29 [Tarantool-patches] [PATCH v1 0/8] Rework standard function Mergen Imeev via Tarantool-patches
2021-10-01 16:29 ` Mergen Imeev via Tarantool-patches [this message]
2021-10-08 21:55   ` [Tarantool-patches] [PATCH v1 1/8] sql: refactor ABS() funcion Vladislav Shpilevoy via Tarantool-patches
2021-10-20 16:52     ` Mergen Imeev via Tarantool-patches
2021-10-28 22:11       ` Vladislav Shpilevoy via Tarantool-patches
2021-11-01 10:11         ` Mergen Imeev via Tarantool-patches
2021-11-01 13:37           ` Vladislav Shpilevoy via Tarantool-patches
2021-10-01 16:29 ` [Tarantool-patches] [PATCH v1 2/8] sql: refactor CHAR_LENGTH() function Mergen Imeev via Tarantool-patches
2021-10-08 21:56   ` Vladislav Shpilevoy via Tarantool-patches
2021-10-20 16:58     ` Mergen Imeev via Tarantool-patches
2021-10-28 22:11       ` Vladislav Shpilevoy via Tarantool-patches
2021-11-01 10:20         ` Mergen Imeev via Tarantool-patches
2021-10-01 16:29 ` [Tarantool-patches] [PATCH v1 3/8] sql: refactor UPPER() and LOWER() functions Mergen Imeev via Tarantool-patches
2021-10-20 17:02   ` Mergen Imeev via Tarantool-patches
2021-10-01 16:29 ` [Tarantool-patches] [PATCH v1 4/8] sql: refactor NULLIF() function Mergen Imeev via Tarantool-patches
2021-10-01 16:29 ` [Tarantool-patches] [PATCH v1 5/8] sql: rework TRIM() function Mergen Imeev via Tarantool-patches
2021-10-20 17:05   ` Mergen Imeev via Tarantool-patches
2021-10-28 22:12     ` Vladislav Shpilevoy via Tarantool-patches
2021-11-01 10:35       ` Mergen Imeev via Tarantool-patches
2021-10-01 16:29 ` [Tarantool-patches] [PATCH v1 6/8] sql: rework POSITION() function Mergen Imeev via Tarantool-patches
2021-10-08 21:58   ` Vladislav Shpilevoy via Tarantool-patches
2021-10-20 17:08     ` Mergen Imeev via Tarantool-patches
2021-11-01 10:41       ` Mergen Imeev via Tarantool-patches
2021-10-01 16:29 ` [Tarantool-patches] [PATCH v1 7/8] sql: rework SUBSTR() function Mergen Imeev via Tarantool-patches
2021-10-08 22:02   ` Vladislav Shpilevoy via Tarantool-patches
2021-10-20 17:15     ` Mergen Imeev via Tarantool-patches
2021-10-28 22:13       ` Vladislav Shpilevoy via Tarantool-patches
2021-11-01 10:45         ` Mergen Imeev via Tarantool-patches
2021-10-01 16:29 ` [Tarantool-patches] [PATCH v1 8/8] sql: refactor LIKE() function Mergen Imeev via Tarantool-patches
2021-10-08 22:02   ` Vladislav Shpilevoy via Tarantool-patches
2021-10-20 17:19     ` Mergen Imeev via Tarantool-patches
2021-11-01 10:48       ` Mergen Imeev via Tarantool-patches
2021-11-01 10:53         ` Mergen Imeev via Tarantool-patches
2021-10-04 13:32 ` [Tarantool-patches] [PATCH v1 0/8] Rework standard function Mergen Imeev via Tarantool-patches
2021-11-01 13:38 ` Vladislav Shpilevoy via Tarantool-patches
2021-11-11 10:45 Mergen Imeev via Tarantool-patches
2021-11-11 10:45 ` [Tarantool-patches] [PATCH v1 1/8] sql: refactor ABS() funcion Mergen Imeev via Tarantool-patches

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