database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-30 21:42:05 +03:00
Code Activity

Replace planner's representation of relation sets, per pghackers discussion.

Browse Source 
Instead of Lists of integers, we now store variable-length bitmap sets.
This should be faster as well as less error-prone.
This commit is contained in:
Tom Lane
2003-02-08 20:20:55 +00:00
parent 893678eda7
commit c15a4c2aef
35 changed files with 1453 additions and 626 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/backend/commands/explain.c
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1994-5, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/explain.c,v 1.100 2003/02/02 23:46:38 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/explain.c,v 1.101 2003/02/08 20:20:53 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -775,12 +775,15 @@ show_scan_qual(List *qual, bool is_or_qual, const char *qlabel,
*/
if (outer_plan)
{
if (intMember(OUTER, pull_varnos(node)))
Relids varnos = pull_varnos(node);
if (bms_is_member(OUTER, varnos))
outercontext = deparse_context_for_subplan("outer",
outer_plan->targetlist,
es->rtable);
else
outercontext = NULL;
bms_free(varnos);
}
else
outercontext = NULL;
@ -857,6 +860,7 @@ show_sort_keys(List *tlist, int nkeys, const char *qlabel,
int keyno;
List *tl;
char *exprstr;
Relids varnos;
int i;
if (nkeys <= 0)
@ -874,7 +878,8 @@ show_sort_keys(List *tlist, int nkeys, const char *qlabel,
* there are Vars with zero varno, use the tlist itself to determine
* their names.
*/
if (intMember(0, pull_varnos((Node *) tlist)))
varnos = pull_varnos((Node *) tlist);
if (bms_is_member(0, varnos))
{
Node *outercontext;
@ -893,6 +898,7 @@ show_sort_keys(List *tlist, int nkeys, const char *qlabel,
es->rtable);
useprefix = length(es->rtable) > 1;
}
bms_free(varnos);
for (keyno = 1; keyno <= nkeys; keyno++)
{