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DROP DATABASE IF EXISTS variant

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This commit is contained in:
Andrew Dunstan
2005-11-22 15:24:18 +00:00
parent 179211a683
commit 5b352d8e12
8 changed files with 51 additions and 14 deletions
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12
src/backend/parser/gram.y
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@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.514 2005/11/21 12:49:31 alvherre Exp $
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.515 2005/11/22 15:24:17 adunstan Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -4698,7 +4698,7 @@ alterdb_opt_item:
/*****************************************************************************
*
* DROP DATABASE
* DROP DATABASE [ IF EXISTS ]
*
* This is implicitly CASCADE, no need for drop behavior
*****************************************************************************/
@@ -4707,6 +4707,14 @@ DropdbStmt: DROP DATABASE database_name
{
DropdbStmt *n = makeNode(DropdbStmt);
n->dbname = $3;
n->missing_ok = FALSE;
$$ = (Node *)n;
}
| DROP DATABASE IF_P EXISTS database_name
{
DropdbStmt *n = makeNode(DropdbStmt);
n->dbname = $5;
n->missing_ok = TRUE;
$$ = (Node *)n;
}
;