DTStack
diff --git a/Diff for: ‎src/grammar/postgresql/PostgreSqlParser.g4
+4 b/Diff for: ‎src/grammar/postgresql/PostgreSqlParser.g4
+4
diff --git a/Diff for: ‎src/lib/postgresql/PostgreSqlParser.interp
+1-1 b/Diff for: ‎src/lib/postgresql/PostgreSqlParser.interp
+1-1
@@ -1911,11 +1911,13 @@ prep_type_clause
     : OPEN_PAREN typename (COMMA typename)* CLOSE_PAREN
     ;
 
+// https://www.postgresql.org/docs/17/sql-select.html
 preparablestmt
     : selectstmt
     | insertstmt
     | updatestmt
     | deletestmt
+    | mergestmt
     ;
 
 executestmt
@@ -3558,8 +3560,10 @@ stmt_move
     : KW_MOVE opt_fetch_direction? cursor_variable SEMI
     ;
 
+// https://www.postgresql.org/docs/17/sql-merge.html
 mergestmt
     : with_clause? KW_MERGE KW_INTO (KW_ONLY)? table_name (STAR)? (KW_AS? colid)? KW_USING data_source KW_ON expression merge_when_clause+
+        returning_clause?
     ;
 
 data_source
Original file line number	Diff line number	Diff line change
`@@ -1911,11 +1911,13 @@ prep_type_clause`
`1911`	`1911`	`: OPEN_PAREN typename (COMMA typename)* CLOSE_PAREN`
`1912`	`1912`	`;`
`1913`	`1913`
	`1914`	`+// https://www.postgresql.org/docs/17/sql-select.html`
`1914`	`1915`	`preparablestmt`
`1915`	`1916`	`: selectstmt`
`1916`	`1917`	`\| insertstmt`
`1917`	`1918`	`\| updatestmt`
`1918`	`1919`	`\| deletestmt`
	`1920`	`+ \| mergestmt`
`1919`	`1921`	`;`
`1920`	`1922`
`1921`	`1923`	`executestmt`
`@@ -3558,8 +3560,10 @@ stmt_move`
`3558`	`3560`	`: KW_MOVE opt_fetch_direction? cursor_variable SEMI`
`3559`	`3561`	`;`
`3560`	`3562`
	`3563`	`+// https://www.postgresql.org/docs/17/sql-merge.html`
`3561`	`3564`	`mergestmt`
`3562`	`3565`	`: with_clause? KW_MERGE KW_INTO (KW_ONLY)? table_name (STAR)? (KW_AS? colid)? KW_USING data_source KW_ON expression merge_when_clause+`
	`3566`	`+ returning_clause?`
`3563`	`3567`	`;`
`3564`	`3568`
`3565`	`3569`	`data_source`