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Add support for multi-row VALUES clauses as part of INSERT statements

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(e.g. "INSERT ... VALUES (...), (...), ...") and elsewhere as allowed
by the spec. (e.g. similar to a FROM clause subselect). initdb required.
Joe Conway and Tom Lane.
This commit is contained in:
Joe Conway
2006-08-02 01:59:48 +00:00
parent d307c428cb
commit 9caafda579
40 changed files with 1877 additions and 313 deletions
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21
src/backend/optimizer/util/pathnode.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/optimizer/util/pathnode.c,v 1.131 2006/07/22 15:41:55 tgl Exp $
* $PostgreSQL: pgsql/src/backend/optimizer/util/pathnode.c,v 1.132 2006/08/02 01:59:46 joe Exp $
*
*-------------------------------------------------------------------------
*/
@ -1082,6 +1082,25 @@ create_functionscan_path(PlannerInfo *root, RelOptInfo *rel)
return pathnode;
}
/*
* create_valuesscan_path
* Creates a path corresponding to a scan of a VALUES list,
* returning the pathnode.
*/
Path *
create_valuesscan_path(PlannerInfo *root, RelOptInfo *rel)
{
Path *pathnode = makeNode(Path);
pathnode->pathtype = T_ValuesScan;
pathnode->parent = rel;
pathnode->pathkeys = NIL; /* result is always unordered */
cost_valuesscan(pathnode, root, rel);
return pathnode;
}
/*
* create_nestloop_path
* Creates a pathnode corresponding to a nestloop join between two