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Implement IF NOT EXIST for CREATE INDEX.

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Fabrízio de Royes Mello, reviewed by Marti Raudsepp, Adam Brightwell and me.
This commit is contained in:
Fujii Masao
2014-11-06 18:48:33 +09:00
parent 171c377a0a
commit 08309aaf74
11 changed files with 85 additions and 5 deletions
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26
src/backend/parser/gram.y
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@ -6434,6 +6434,32 @@ IndexStmt: CREATE opt_unique INDEX opt_concurrently opt_index_name
n->isconstraint = false;
n->deferrable = false;
n->initdeferred = false;
n->if_not_exists = false;
$$ = (Node *)n;
}
| CREATE opt_unique INDEX opt_concurrently IF_P NOT EXISTS index_name
ON qualified_name access_method_clause '(' index_params ')'
opt_reloptions OptTableSpace where_clause
{
IndexStmt *n = makeNode(IndexStmt);
n->unique = $2;
n->concurrent = $4;
n->idxname = $8;
n->relation = $10;
n->accessMethod = $11;
n->indexParams = $13;
n->options = $15;
n->tableSpace = $16;
n->whereClause = $17;
n->excludeOpNames = NIL;
n->idxcomment = NULL;
n->indexOid = InvalidOid;
n->oldNode = InvalidOid;
n->primary = false;
n->isconstraint = false;
n->deferrable = false;
n->initdeferred = false;
n->if_not_exists = true;
$$ = (Node *)n;
}
;