[tarantool-patches] [PATCH v2 3/5] sql: save SQL parser errors in diag_set()

[imeevma@tarantool.org]

After this patch all SQL parser errors will be saved in diag_set()
instead of field zErrMsg of struct Parse.

Part of #3965
---
 src/box/errcode.h           | 1 +
 src/box/sql/build.c         | 3 ++-
 src/box/sql/util.c          | 6 +++---
 test/box/misc.result        | 1 +
 test/sql-tap/check.test.lua | 2 +-
 test/sql/triggers.result    | 4 ++--
 6 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/src/box/errcode.h b/src/box/errcode.h
index 6546b2f..779d927 100644
--- a/src/box/errcode.h
+++ b/src/box/errcode.h
@@ -238,6 +238,7 @@ struct errcode_record {
 	/*183 */_(ER_SQL_KEYWORD_IS_RESERVED,	"Keyword '%.*s' is reserved. Please use double quotes if '%.*s' is an identifier.") \
 	/*184 */_(ER_SQL_SYNTAX_NEAR,		"Unrecognized syntax near '%.*s'") \
 	/*185 */_(ER_SQL_UNKNOWN_TOKEN,		"Syntax error: unrecognized token: '%.*s'") \
+	/*186 */_(ER_SQL_PARSER_GENERIC,	"%s") \
 
 /*
  * !IMPORTANT! Please follow instructions at start of the file
diff --git a/src/box/sql/build.c b/src/box/sql/build.c
index f112c9f..deb5b89 100644
--- a/src/box/sql/build.c
+++ b/src/box/sql/build.c
@@ -194,7 +194,8 @@ sql_finish_coding(struct Parse *parse_context)
 		sqlVdbeMakeReady(v, parse_context);
 		parse_context->rc = SQL_DONE;
 	} else {
-		parse_context->rc = SQL_ERROR;
+		if (parse_context->rc != SQL_TARANTOOL_ERROR)
+			parse_context->rc = SQL_ERROR;
 	}
 }
 /**
diff --git a/src/box/sql/util.c b/src/box/sql/util.c
index c89e2e8..e4c93cb 100644
--- a/src/box/sql/util.c
+++ b/src/box/sql/util.c
@@ -236,10 +236,10 @@ sqlErrorMsg(Parse * pParse, const char *zFormat, ...)
 	va_start(ap, zFormat);
 	zMsg = sqlVMPrintf(db, zFormat, ap);
 	va_end(ap);
+	diag_set(ClientError, ER_SQL_PARSER_GENERIC, zMsg);
+	sqlDbFree(db, zMsg);
 	pParse->nErr++;
-	sqlDbFree(db, pParse->zErrMsg);
-	pParse->zErrMsg = zMsg;
-	pParse->rc = SQL_ERROR;
+	pParse->rc = SQL_TARANTOOL_ERROR;
 }
 
 void
diff --git a/test/box/misc.result b/test/box/misc.result
index a1c94bf..47393d1 100644
--- a/test/box/misc.result
+++ b/test/box/misc.result
@@ -514,6 +514,7 @@ t;
   182: box.error.SQL_STATEMENT_EMPTY
   184: box.error.SQL_SYNTAX_NEAR
   185: box.error.SQL_UNKNOWN_TOKEN
+  186: box.error.SQL_PARSER_GENERIC
 ...
 test_run:cmd("setopt delimiter ''");
 ---
diff --git a/test/sql-tap/check.test.lua b/test/sql-tap/check.test.lua
index f7d3ffe..8ce3184 100755
--- a/test/sql-tap/check.test.lua
+++ b/test/sql-tap/check.test.lua
@@ -319,7 +319,7 @@ test:do_catchsql_test(
         );
     ]], {
         -- <check-3.1>
-        1, "Failed to create space 'T3': SQL error: subqueries prohibited in CHECK constraints"
+        1, "Failed to create space 'T3': subqueries prohibited in CHECK constraints"
         -- </check-3.1>
     })
 
diff --git a/test/sql/triggers.result b/test/sql/triggers.result
index bbfff33..9ab169b 100644
--- a/test/sql/triggers.result
+++ b/test/sql/triggers.result
@@ -398,14 +398,14 @@ space_id = box.space.T1.id
 ...
 box.sql.execute("CREATE TRIGGER tr1 AFTER INSERT ON t1 WHEN new.a = ? BEGIN SELECT 1; END;")
 ---
-- error: 'SQL error: bindings are not allowed in DDL'
+- error: bindings are not allowed in DDL
 ...
 tuple = {"TR1", space_id, {sql = [[CREATE TRIGGER tr1 AFTER INSERT ON t1 WHEN new.a = ? BEGIN SELECT 1; END;]]}}
 ---
 ...
 box.space._trigger:insert(tuple)
 ---
-- error: 'SQL error: bindings are not allowed in DDL'
+- error: bindings are not allowed in DDL
 ...
 box.sql.execute("DROP TABLE t1;")
 ---
-- 
2.7.4