[MySQL] Allow using of alias in single delete statement (#3297)

antlr · Mar 23, 2023 · bcc9a89 · bcc9a89
1 parent 477b761
commit bcc9a89
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diff --git a/sql/mysql/Positive-Technologies/MySqlParser.g4 b/sql/mysql/Positive-Technologies/MySqlParser.g4
@@ -948,7 +948,7 @@ lockClause
 
 singleDeleteStatement
     : DELETE priority=LOW_PRIORITY? QUICK? IGNORE?
-    FROM tableName
+    FROM tableName (AS? uid)?
       (PARTITION '(' uidList ')' )?
       (WHERE expression)?
       orderByClause? (LIMIT limitClauseAtom)?

diff --git a/sql/mysql/Positive-Technologies/examples/dml_delete.sql b/sql/mysql/Positive-Technologies/examples/dml_delete.sql
@@ -15,3 +15,8 @@ DELETE t1 FROM t1 LEFT JOIN t2 ON t1.id=t2.id WHERE t2.id IS NULL;
 DELETE a1, a2 FROM t1 AS a1 INNER JOIN t2 AS a2 WHERE a1.id=a2.id;
 DELETE FROM a1, a2 USING t1 AS a1 INNER JOIN t2 AS a2 WHERE a1.id=a2.id;
 #end
+#begin
+-- delete with table alias
+DELETE FROM t1 alias_t1 WHERE alias_t1.col1 > 0;
+DELETE FROM t1 as alias_t1 WHERE alias_t1.col1 > 0;
+#end