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Rename Temp to Noname for noname tables.

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This commit is contained in:
Bruce Momjian
1999-02-09 17:03:14 +00:00
parent 78511d8fe9
commit 318e593f03
21 changed files with 198 additions and 198 deletions
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70
src/backend/optimizer/plan/setrefs.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/setrefs.c,v 1.37 1999/02/03 21:16:38 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/setrefs.c,v 1.38 1999/02/09 17:03:01 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -34,14 +34,14 @@
#include "optimizer/tlist.h"
static void set_join_tlist_references(Join *join);
static void set_tempscan_tlist_references(SeqScan *tempscan);
static void set_temp_tlist_references(Temp *temp);
static void set_nonamescan_tlist_references(SeqScan *nonamescan);
static void set_noname_tlist_references(Noname *noname);
static List *replace_clause_joinvar_refs(Expr *clause,
List *outer_tlist, List *inner_tlist);
static List *replace_subclause_joinvar_refs(List *clauses,
List *outer_tlist, List *inner_tlist);
static Var *replace_joinvar_refs(Var *var, List *outer_tlist, List *inner_tlist);
static List *tlist_temp_references(Oid tempid, List *tlist);
static List *tlist_noname_references(Oid nonameid, List *tlist);
static void replace_result_clause(Node *clause, List *subplanTargetList);
static bool OperandIsInner(Node *opnd, int inner_relid);
static List *replace_agg_clause(Node *expr, List *targetlist);
@ -74,10 +74,10 @@ set_tlist_references(Plan *plan)
if (IsA_Join(plan))
set_join_tlist_references((Join *) plan);
else if (IsA(plan, SeqScan) &&plan->lefttree &&
IsA_Temp(plan->lefttree))
set_tempscan_tlist_references((SeqScan *) plan);
IsA_Noname(plan->lefttree))
set_nonamescan_tlist_references((SeqScan *) plan);
else if (IsA(plan, Sort))
set_temp_tlist_references((Temp *) plan);
set_noname_tlist_references((Noname *) plan);
else if (IsA(plan, Result))
set_result_tlist_references((Result *) plan);
else if (IsA(plan, Hash))
@ -136,49 +136,49 @@ set_join_tlist_references(Join *join)
}
/*
* set-tempscan-tlist-references--
* Modifies the target list of a node that scans a temp relation (i.e., a
* sort or hash node) so that the varnos refer to the child temporary.
* set-nonamescan-tlist-references--
* Modifies the target list of a node that scans a noname relation (i.e., a
* sort or hash node) so that the varnos refer to the child noname.
*
* 'tempscan' is a seqscan node
* 'nonamescan' is a seqscan node
*
* Returns nothing of interest, but modifies internal fields of nodes.
*
*/
static void
set_tempscan_tlist_references(SeqScan *tempscan)
set_nonamescan_tlist_references(SeqScan *nonamescan)
{
Temp *temp = (Temp *) ((Plan *) tempscan)->lefttree;
Noname *noname = (Noname *) ((Plan *) nonamescan)->lefttree;
((Plan *) tempscan)->targetlist = tlist_temp_references(temp->tempid,
((Plan *) tempscan)->targetlist);
set_temp_tlist_references(temp);
((Plan *) nonamescan)->targetlist = tlist_noname_references(noname->nonameid,
((Plan *) nonamescan)->targetlist);
set_noname_tlist_references(noname);
}
/*
* set-temp-tlist-references--
* The temp's vars are made consistent with (actually, identical to) the
* modified version of the target list of the node from which temp node
* set-noname-tlist-references--
* The noname's vars are made consistent with (actually, identical to) the
* modified version of the target list of the node from which noname node
* receives its tuples.
*
* 'temp' is a temp (e.g., sort, hash) plan node
* 'noname' is a noname (e.g., sort, hash) plan node
*
* Returns nothing of interest, but modifies internal fields of nodes.
*
*/
static void
set_temp_tlist_references(Temp *temp)
set_noname_tlist_references(Noname *noname)
{
Plan *source = ((Plan *) temp)->lefttree;
Plan *source = ((Plan *) noname)->lefttree;
if (source != NULL)
{
set_tlist_references(source);
((Plan *) temp)->targetlist = copy_vars(((Plan *) temp)->targetlist,
((Plan *) noname)->targetlist = copy_vars(((Plan *) noname)->targetlist,
(source)->targetlist);
}
else
elog(ERROR, "calling set_temp_tlist_references with empty lefttree");
elog(ERROR, "calling set_noname_tlist_references with empty lefttree");
}
/*
@ -475,25 +475,25 @@ replace_joinvar_refs(Var *var, List *outer_tlist, List *inner_tlist)
}
/*
* tlist-temp-references--
* Creates a new target list for a node that scans a temp relation,
* setting the varnos to the id of the temp relation and setting varids
* tlist-noname-references--
* Creates a new target list for a node that scans a noname relation,
* setting the varnos to the id of the noname relation and setting varids
* if necessary (varids are only needed if this is a targetlist internal
* to the tree, in which case the targetlist entry always contains a var
* node, so we can just copy it from the temp).
* node, so we can just copy it from the noname).
*
* 'tempid' is the id of the temp relation
* 'nonameid' is the id of the noname relation
* 'tlist' is the target list to be modified
*
* Returns new target list
*
*/
static List *
tlist_temp_references(Oid tempid,
tlist_noname_references(Oid nonameid,
List *tlist)
{
List *t_list = NIL;
TargetEntry *temp = (TargetEntry *) NULL;
TargetEntry *noname = (TargetEntry *) NULL;
TargetEntry *xtl = NULL;
List *entry;
@ -507,16 +507,16 @@ tlist_temp_references(Oid tempid,
else
oattno = 0;
temp = makeTargetEntry(xtl->resdom,
(Node *) makeVar(tempid,
noname = makeTargetEntry(xtl->resdom,
(Node *) makeVar(nonameid,
xtl->resdom->resno,
xtl->resdom->restype,
xtl->resdom->restypmod,
0,
tempid,
nonameid,
oattno));
t_list = lappend(t_list, temp);
t_list = lappend(t_list, noname);
}
return t_list;
}