database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-29 10:41:53 +03:00
Code Activity

Make further use of new bitmapset code: executor's chgParam, extParam,

Browse Source 
locParam lists can be converted to bitmapsets to speed updating.  Also,
replace 'locParam' with 'allParam', which contains all the paramIDs
relevant to the node (i.e., the union of extParam and locParam); this
saves a step during SetChangedParamList() without costing anything
elsewhere.
This commit is contained in:
Tom Lane
2003-02-09 00:30:41 +00:00
parent c15a4c2aef
commit 145014f811
17 changed files with 267 additions and 193 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
src/backend/executor/execUtils.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execUtils.c,v 1.96 2003/01/23 05:10:39 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execUtils.c,v 1.97 2003/02/09 00:30:39 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -874,25 +874,28 @@ ExecInsertIndexTuples(TupleTableSlot *slot,
}
}
/*
* UpdateChangedParamSet
* Add changed parameters to a plan node's chgParam set
*/
void
SetChangedParamList(PlanState *node, List *newchg)
UpdateChangedParamSet(PlanState *node, Bitmapset *newchg)
{
List *nl;
Bitmapset *parmset;
foreach(nl, newchg)
{
int paramId = lfirsti(nl);
/* if this node doesn't depend on a param ... */
if (!intMember(paramId, node->plan->extParam) &&
!intMember(paramId, node->plan->locParam))
continue;
/* if this param is already in list of changed ones ... */
if (intMember(paramId, node->chgParam))
continue;
/* else - add this param to the list */
node->chgParam = lappendi(node->chgParam, paramId);
}
/*
* The plan node only depends on params listed in its allParam set.
* Don't include anything else into its chgParam set.
*/
parmset = bms_intersect(node->plan->allParam, newchg);
/*
* Keep node->chgParam == NULL if there's not actually any members;
* this allows the simplest possible tests in executor node files.
*/
if (!bms_is_empty(parmset))
node->chgParam = bms_join(node->chgParam, parmset);
else
bms_free(parmset);
}
/*