diff options
Diffstat (limited to 'src/backend/parser')
| -rw-r--r-- | src/backend/parser/gram.y | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y index 3806687ae37..ba5916b4d27 100644 --- a/src/backend/parser/gram.y +++ b/src/backend/parser/gram.y @@ -639,7 +639,7 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query); DOUBLE_P DROP EACH ELSE ENABLE_P ENCODING ENCRYPTED END_P ENUM_P ESCAPE EVENT EXCEPT - EXCLUDE EXCLUDING EXCLUSIVE EXECUTE EXISTS EXPLAIN + EXCLUDE EXCLUDING EXCLUSIVE EXECUTE EXISTS EXPLAIN EXPRESSION EXTENSION EXTERNAL EXTRACT FALSE_P FAMILY FETCH FILTER FIRST_P FLOAT_P FOLLOWING FOR @@ -2129,6 +2129,23 @@ alter_table_cmd: n->name = $3; $$ = (Node *)n; } + /* ALTER TABLE <name> ALTER [COLUMN] <colname> DROP EXPRESSION */ + | ALTER opt_column ColId DROP EXPRESSION + { + AlterTableCmd *n = makeNode(AlterTableCmd); + n->subtype = AT_DropExpression; + n->name = $3; + $$ = (Node *)n; + } + /* ALTER TABLE <name> ALTER [COLUMN] <colname> DROP EXPRESSION IF EXISTS */ + | ALTER opt_column ColId DROP EXPRESSION IF_P EXISTS + { + AlterTableCmd *n = makeNode(AlterTableCmd); + n->subtype = AT_DropExpression; + n->name = $3; + n->missing_ok = true; + $$ = (Node *)n; + } /* ALTER TABLE <name> ALTER [COLUMN] <colname> SET STATISTICS <SignedIconst> */ | ALTER opt_column ColId SET STATISTICS SignedIconst { @@ -15196,6 +15213,7 @@ unreserved_keyword: | EXCLUSIVE | EXECUTE | EXPLAIN + | EXPRESSION | EXTENSION | EXTERNAL | FAMILY |