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First cut at full support for OUTER JOINs. There are still a few loose

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ends to clean up (see my message of same date to pghackers), but mostly
it works.  INITDB REQUIRED!
This commit is contained in:
Tom Lane
2000-09-12 21:07:18 +00:00
parent b5c0ab278b
commit ed5003c584
93 changed files with 6386 additions and 4262 deletions
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27
src/backend/executor/execMain.c
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@ -27,7 +27,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.126 2000/09/12 04:49:08 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.127 2000/09/12 21:06:48 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -399,16 +399,17 @@ ExecCheckQueryPerms(CmdType operation, Query *parseTree, Plan *plan)
* If we have a result relation, determine whether the result rel is
* scanned or merely written. If scanned, we will insist on read
* permission as well as modify permission.
*
* Note: it might look faster to apply rangeTableEntry_used(), but
* that's not correct since it will trigger on jointree references
* to the RTE. We only want to know about actual Var nodes.
*/
if (resultRelation > 0)
{
List *qvars = pull_varnos(parseTree->qual);
List *tvars = pull_varnos((Node *) parseTree->targetList);
List *qvars = pull_varnos((Node *) parseTree);
resultIsScanned = (intMember(resultRelation, qvars) ||
intMember(resultRelation, tvars));
resultIsScanned = intMember(resultRelation, qvars);
freeList(qvars);
freeList(tvars);
}
/*
@ -571,8 +572,8 @@ ExecCheckRTEPerms(RangeTblEntry *rte, CmdType operation,
bool isResultRelation, bool resultIsScanned)
{
char *relName;
Oid userid;
int32 aclcheck_result;
Oid userid;
if (rte->skipAcl)
{
@ -703,13 +704,11 @@ InitPlan(CmdType operation, Query *parseTree, Plan *plan, EState *estate)
*/
RelationInfo *resultRelationInfo;
Index resultRelationIndex;
RangeTblEntry *rtentry;
Oid resultRelationOid;
Relation resultRelationDesc;
resultRelationIndex = resultRelation;
rtentry = rt_fetch(resultRelationIndex, rangeTable);
resultRelationOid = rtentry->relid;
resultRelationOid = getrelid(resultRelationIndex, rangeTable);
resultRelationDesc = heap_open(resultRelationOid, RowExclusiveLock);
if (resultRelationDesc->rd_rel->relkind == RELKIND_SEQUENCE)
@ -770,7 +769,7 @@ InitPlan(CmdType operation, Query *parseTree, Plan *plan, EState *estate)
if (!(rm->info & ROW_MARK_FOR_UPDATE))
continue;
relid = rt_fetch(rm->rti, rangeTable)->relid;
relid = getrelid(rm->rti, rangeTable);
relation = heap_open(relid, RowShareLock);
erm = (execRowMark *) palloc(sizeof(execRowMark));
erm->relation = relation;
@ -1623,10 +1622,10 @@ ExecRelCheck(Relation rel, TupleTableSlot *slot, EState *estate)
rte = makeNode(RangeTblEntry);
rte->relname = RelationGetRelationName(rel);
rte->ref = makeNode(Attr);
rte->ref->relname = rte->relname;
rte->relid = RelationGetRelid(rel);
/* inh, inFromCl, inJoinSet, skipAcl won't be used, leave them zero */
rte->eref = makeNode(Attr);
rte->eref->relname = rte->relname;
/* inh, inFromCl, skipAcl won't be used, leave them zero */
/* Set up single-entry range table */
econtext->ecxt_range_table = lcons(rte, NIL);