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ALTER TABLE SET/DROP NOT NULL, from Christopher Kings-Lynne.

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This commit is contained in:
Tom Lane
2002-04-01 04:35:40 +00:00
parent 838fe25a95
commit 9b77f61930
9 changed files with 510 additions and 49 deletions
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20
src/backend/parser/gram.y
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@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.298 2002/04/01 03:34:25 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.299 2002/04/01 04:35:38 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -1122,6 +1122,24 @@ AlterTableStmt:
n->def = $7;
$$ = (Node *)n;
}
/* ALTER TABLE <relation> ALTER [COLUMN] <colname> DROP NOT NULL */
| ALTER TABLE relation_expr ALTER opt_column ColId DROP NOT NULL_P
{
AlterTableStmt *n = makeNode(AlterTableStmt);
n->subtype = 'N';
n->relation = $3;
n->name = $6;
$$ = (Node *)n;
}
/* ALTER TABLE <relation> ALTER [COLUMN] <colname> SET NOT NULL */
| ALTER TABLE relation_expr ALTER opt_column ColId SET NOT NULL_P
{
AlterTableStmt *n = makeNode(AlterTableStmt);
n->subtype = 'O';
n->relation = $3;
n->name = $6;
$$ = (Node *)n;
}
/* ALTER TABLE <relation> ALTER [COLUMN] <colname> SET STATISTICS <Iconst> */
| ALTER TABLE relation_expr ALTER opt_column ColId SET STATISTICS Iconst
{