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Fix explain for union and inheritance. Rename Append structure

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members to be clearer.  Fix cost computation for these.
This commit is contained in:
Bruce Momjian
1998-07-15 14:54:39 +00:00
parent 9fdbbdc877
commit 9e964f90fb
10 changed files with 185 additions and 128 deletions
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31
src/backend/optimizer/prep/prepunion.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.24 1998/06/15 19:28:46 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.25 1998/07/15 14:54:37 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -48,8 +48,8 @@ static void
fix_parsetree_attnums(Index rt_index, Oid old_relid,
Oid new_relid, Query *parsetree);
static Append *
make_append(List *unionplans, List *unionrts, Index rt_index,
List *union_rt_entries, List *tlist);
make_append(List *appendplans, List *unionrtables, Index rt_index,
List *inheritrtable, List *tlist);
/*
@@ -224,7 +224,7 @@ plan_inherit_queries(Query *parse, Index rt_index)
List *rangetable = parse->rtable;
RangeTblEntry *rt_entry = rt_fetch(rt_index, rangetable);
List *union_rt_entries = NIL;
List *inheritrtable = NIL;
List *union_relids = NIL;
union_relids =
@@ -239,12 +239,12 @@ plan_inherit_queries(Query *parse, Index rt_index)
rt_fetch(rt_index, rangetable)->inh = false;
union_plans = plan_inherit_query(union_relids, rt_index, rt_entry,
parse, &union_rt_entries);
parse, &inheritrtable);
return (make_append(union_plans,
NULL,
rt_index,
union_rt_entries,
inheritrtable,
((Plan *) lfirst(union_plans))->targetlist));
}
@@ -494,19 +494,22 @@ fix_parsetree_attnums(Index rt_index,
}
static Append *
make_append(List *unionplans,
List *unionrts,
make_append(List *appendplans,
List *unionrtables,
Index rt_index,
List *union_rt_entries,
List *inheritrtable,
List *tlist)
{
Append *node = makeNode(Append);
node->unionplans = unionplans;
node->unionrts = unionrts;
node->unionrelid = rt_index;
node->unionrtentries = union_rt_entries;
List *subnode;
node->appendplans = appendplans;
node->unionrtables = unionrtables;
node->inheritrelid = rt_index;
node->inheritrtable = inheritrtable;
node->plan.cost = 0.0;
foreach(subnode, appendplans)
node->plan.cost += ((Plan *)lfirst(subnode))->cost;
node->plan.state = (EState *) NULL;
node->plan.targetlist = tlist;
node->plan.qual = NIL;