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Commitc65ea0e

Browse files
committed
New pg_attribute.atttypmod for type-specific information like
varchar length.Cleans up code so attlen is always length.Removed varchar() hack added earlier.Will fix bug in selecting varchar() fields, and varchar() can bevariable length.
1 parentd7427e4 commitc65ea0e

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27 files changed

+339
-467
lines changed

27 files changed

+339
-467
lines changed

‎src/backend/access/common/tupdesc.c‎

Lines changed: 4 additions & 13 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/access/common/tupdesc.c,v 1.31 1998/01/07 21:00:45 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/access/common/tupdesc.c,v 1.32 1998/01/16 23:19:16 momjian Exp $
1111
*
1212
* NOTES
1313
* some of the executor utility code such as "ExecTypeFromTL" should be
@@ -301,11 +301,12 @@ TupleDescInitEntry(TupleDesc desc,
301301

302302
att->attdisbursion=0;/* dummy value */
303303
att->attcacheoff=-1;
304+
att->atttypmod=0;
304305

305306
att->attnum=attributeNumber;
306307
att->attnelems=attdim;
307308
att->attisset=attisset;
308-
309+
309310
att->attnotnull= false;
310311
att->atthasdef= false;
311312

@@ -512,17 +513,7 @@ BuildDescForRelation(List *schema, char *relname)
512513
typename);
513514
}
514515

515-
/*
516-
* this is for char() and varchar(). When an entry is of type
517-
* char() or varchar(), typlen is set to the appropriate length,
518-
* which we'll use here instead. (The catalog lookup only returns
519-
* the length of bpchar and varchar which is not what we want!) -
520-
* ay 6/95
521-
*/
522-
if (entry->typename->typlen>0)
523-
{
524-
desc->attrs[attnum-1]->attlen=entry->typename->typlen;
525-
}
516+
desc->attrs[attnum-1]->atttypmod=entry->typename->typmod;
526517

527518
/* This is for constraints */
528519
if (entry->is_not_null)

‎src/backend/catalog/catalog.c‎

Lines changed: 2 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/catalog/catalog.c,v 1.12 1998/01/0619:42:26 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/catalog/catalog.c,v 1.13 1998/01/16 23:19:23 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -190,16 +190,9 @@ fillatt(TupleDesc tupleDesc)
190190
* and byval, since those were already set in
191191
* TupleDescInitEntry.In fact, this seems redundant here,
192192
* but who knows what I'll break if I take it out...
193-
*
194-
* same for char() and varchar() stuff. I share the same
195-
* sentiments. This function is poorly written anyway. -ay
196-
* 6/95
197193
*/
198-
if (!(*attributeP)->attisset&&
199-
(*attributeP)->atttypid!=BPCHAROID&&
200-
(*attributeP)->atttypid!=VARCHAROID)
194+
if (!(*attributeP)->attisset)
201195
{
202-
203196
typp= (TypeTupleForm)GETSTRUCT(tuple);/* XXX */
204197
(*attributeP)->attlen=typp->typlen;
205198
(*attributeP)->attbyval=typp->typbyval;

‎src/backend/catalog/index.c‎

Lines changed: 13 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.35 1998/01/1519:42:27pgsql Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.36 1998/01/16 23:19:27momjian Exp $
1111
*
1212
*
1313
* INTERFACE ROUTINES
@@ -107,6 +107,7 @@ DefaultBuild(Relation heapRelation, Relation indexRelation,
107107
*AttrNumberattnum;
108108
*uint32attnelems;
109109
*int32attcacheoff;
110+
*int16atttypmod;
110111
*boolattbyval;
111112
*boolattisset;
112113
*charattalign;
@@ -117,12 +118,12 @@ DefaultBuild(Relation heapRelation, Relation indexRelation,
117118
* ----------------------------------------------------------------
118119
*/
119120
staticFormData_pg_attributesysatts[]= {
120-
{0l, {"ctid"},27l,0l,6,-1,0,-1,'\0','\0','i','\0','\0'},
121-
{0l, {"oid"},26l,0l,4,-2,0,-1,'\001','\0','i','\0','\0'},
122-
{0l, {"xmin"},28l,0l,4,-3,0,-1,'\0','\0','i','\0','\0'},
123-
{0l, {"cmin"},29l,0l,4,-4,0,-1,'\001','\0','i','\0','\0'},
124-
{0l, {"xmax"},28l,0l,4,-5,0,-1,'\0','\0','i','\0','\0'},
125-
{0l, {"cmax"},29l,0l,4,-6,0,-1,'\001','\0','i','\0','\0'},
121+
{0l, {"ctid"},27l,0l,6,-1,0,-1,0,'\0','\0','i','\0','\0'},
122+
{0l, {"oid"},26l,0l,4,-2,0,-1,0,'\001','\0','i','\0','\0'},
123+
{0l, {"xmin"},28l,0l,4,-3,0,-1,0,'\0','\0','i','\0','\0'},
124+
{0l, {"cmin"},29l,0l,4,-4,0,-1,0,'\001','\0','i','\0','\0'},
125+
{0l, {"xmax"},28l,0l,4,-5,0,-1,0,'\0','\0','i','\0','\0'},
126+
{0l, {"cmax"},29l,0l,4,-6,0,-1,0,'\001','\0','i','\0','\0'},
126127
};
127128

128129
/* ----------------------------------------------------------------
@@ -436,6 +437,7 @@ ConstructTupleDescriptor(Oid heapoid,
436437

437438
((AttributeTupleForm)to)->attnotnull= false;
438439
((AttributeTupleForm)to)->atthasdef= false;
440+
((AttributeTupleForm)to)->atttypmod=0;
439441

440442
/*
441443
* if the keytype is defined, we need to change the tuple form's
@@ -454,11 +456,11 @@ ConstructTupleDescriptor(Oid heapoid,
454456
((AttributeTupleForm)to)->atttypid=tup->t_oid;
455457
((AttributeTupleForm)to)->attbyval=
456458
((TypeTupleForm) ((char*)tup+tup->t_hoff))->typbyval;
457-
if (IndexKeyType->typlen>0)
458-
((AttributeTupleForm)to)->attlen=IndexKeyType->typlen;
459-
else
460-
((AttributeTupleForm)to)->attlen=
459+
460+
((AttributeTupleForm)to)->attlen=
461461
((TypeTupleForm) ((char*)tup+tup->t_hoff))->typlen;
462+
463+
((AttributeTupleForm)to)->atttypmod=IndexKeyType->typmod;
462464
}
463465

464466

‎src/backend/commands/command.c‎

Lines changed: 3 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.23 1998/01/05 16:38:44 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.24 1998/01/16 23:19:33 momjian Exp $
1111
*
1212
* NOTES
1313
* The PortalExecutorHeapMemory crap needs to be eliminated
@@ -482,11 +482,8 @@ PerformAddAttribute(char *relationName,
482482
}
483483
namestrcpy(&(attribute->attname), (char*)key[1].sk_argument);
484484
attribute->atttypid=typeTuple->t_oid;
485-
if (colDef->typename->typlen>0)
486-
attribute->attlen=colDef->typename->typlen;
487-
else
488-
/* bpchar, varchar, text */
489-
attribute->attlen=form->typlen;
485+
attribute->attlen=form->typlen;
486+
attribute->atttypmod=colDef->typename->typmod;
490487
attribute->attnum=i;
491488
attribute->attbyval=form->typbyval;
492489
attribute->attnelems=attnelems;

‎src/backend/commands/copy.c‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
*
77
*
88
* IDENTIFICATION
9-
* $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.38 1998/01/1519:42:36 pgsql Exp $
9+
* $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.39 1998/01/16 23:19:40 momjian Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -574,7 +574,7 @@ CopyFrom(Relation rel, bool binary, bool oids, FILE *fp, char *delim)
574574
values[i]=
575575
(Datum) (*fmgr_faddr(&in_functions[i])) (string,
576576
elements[i],
577-
attr[i]->attlen);
577+
attr[i]->atttypmod);
578578

579579
/*
580580
* Sanity check - by reference attributes cannot

‎src/backend/commands/sequence.c‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -98,6 +98,7 @@ DefineSequence(CreateSeqStmt *seq)
9898
typnam=makeNode(TypeName);
9999
typnam->setof= FALSE;
100100
typnam->arrayBounds=NULL;
101+
typnam->typmod=0;
101102
coldef=makeNode(ColumnDef);
102103
coldef->typename=typnam;
103104
coldef->defval=NULL;

‎src/backend/executor/execAmi.c‎

Lines changed: 1 addition & 27 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/executor/execAmi.c,v 1.15 1998/01/1605:03:45 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/executor/execAmi.c,v 1.16 1998/01/1623:19:47 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -42,7 +42,6 @@
4242
#include"access/genam.h"
4343
#include"access/heapam.h"
4444
#include"catalog/heap.h"
45-
#include"catalog/pg_type.h"
4645

4746
staticPointer
4847
ExecBeginScan(Relationrelation,intnkeys,ScanKeyskeys,
@@ -125,31 +124,6 @@ ExecOpenR(Oid relationOid, bool isindex)
125124
if (relation==NULL)
126125
elog(DEBUG,"ExecOpenR: relation == NULL, heap_open failed.");
127126

128-
{
129-
inti;
130-
Relationtrel=palloc(sizeof(RelationData));
131-
TupleDesctdesc=palloc(sizeof(structtupleDesc));
132-
AttributeTupleForm*tatt=
133-
palloc(sizeof(AttributeTupleForm*)*relation->rd_att->natts);
134-
135-
memcpy(trel,relation,sizeof(RelationData));
136-
memcpy(tdesc,relation->rd_att,sizeof(structtupleDesc));
137-
trel->rd_att=tdesc;
138-
tdesc->attrs=tatt;
139-
140-
for (i=0;i<relation->rd_att->natts;i++)
141-
{
142-
if (relation->rd_att->attrs[i]->atttypid!=VARCHAROID)
143-
tdesc->attrs[i]=relation->rd_att->attrs[i];
144-
else
145-
{
146-
tdesc->attrs[i]=palloc(sizeof(FormData_pg_attribute));
147-
memcpy(tdesc->attrs[i],relation->rd_att->attrs[i],
148-
sizeof(FormData_pg_attribute));
149-
tdesc->attrs[i]->attlen=-1;
150-
}
151-
}
152-
}
153127
returnrelation;
154128
}
155129

‎src/backend/executor/execMain.c‎

Lines changed: 2 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -26,7 +26,7 @@
2626
*
2727
*
2828
* IDENTIFICATION
29-
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.38 1998/01/14 15:48:09 momjian Exp $
29+
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.39 1998/01/16 23:19:49 momjian Exp $
3030
*
3131
*-------------------------------------------------------------------------
3232
*/
@@ -563,13 +563,8 @@ InitPlan(CmdType operation, Query *parseTree, Plan *plan, EState *estate)
563563
*/
564564
tupdesc=CreateTupleDescCopy(tupType);
565565

566-
/* fixup to prevent zero-length columns in create */
567-
setVarAttrLenForCreateTable(tupdesc,targetList,rangeTable);
568-
569566
intoRelationId=heap_create_with_catalog(intoName,tupdesc);
570-
#ifdefNOT_USED/* it's copy ... */
571-
resetVarAttrLenForCreateTable(tupdesc);
572-
#endif
567+
573568
FreeTupleDesc(tupdesc);
574569

575570
/* ----------------

‎src/backend/executor/execUtils.c‎

Lines changed: 1 addition & 74 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/executor/execUtils.c,v 1.23 1998/01/07 21:02:50 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/executor/execUtils.c,v 1.24 1998/01/16 23:19:52 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -1177,76 +1177,3 @@ ExecInsertIndexTuples(TupleTableSlot *slot,
11771177
if (econtext!=NULL)
11781178
pfree(econtext);
11791179
}
1180-
1181-
/* ----------------------------------------------------------------
1182-
* setVarAttrLenForCreateTable -
1183-
* called when we do a SELECT * INTO TABLE tab
1184-
* needed for attributes that have a defined length, like bpchar and
1185-
* varchar
1186-
* ----------------------------------------------------------------
1187-
*/
1188-
void
1189-
setVarAttrLenForCreateTable(TupleDesctupType,List*targetList,
1190-
List*rangeTable)
1191-
{
1192-
List*tl;
1193-
TargetEntry*tle;
1194-
Node*expr;
1195-
intvarno;
1196-
1197-
tl=targetList;
1198-
1199-
for (varno=0;varno<tupType->natts;varno++)
1200-
{
1201-
tle=lfirst(tl);
1202-
1203-
if (tupType->attrs[varno]->atttypid==BPCHAROID||
1204-
tupType->attrs[varno]->atttypid==VARCHAROID)
1205-
{
1206-
expr=tle->expr;
1207-
if (expr&&IsA(expr,Var))
1208-
{
1209-
Var*var;
1210-
RangeTblEntry*rtentry;
1211-
Relationrd;
1212-
1213-
var= (Var*)expr;
1214-
rtentry=rt_fetch(var->varnoold,rangeTable);
1215-
rd=heap_open(rtentry->relid);
1216-
/* set length to that defined in relation */
1217-
tupType->attrs[varno]->attlen=
1218-
(*rd->rd_att->attrs[var->varoattno-1]).attlen;
1219-
heap_close(rd);
1220-
}
1221-
else
1222-
elog(ERROR,"setVarAttrLenForCreateTable: can't get length for variable-length field");
1223-
}
1224-
tl=lnext(tl);
1225-
}
1226-
}
1227-
1228-
1229-
#ifdefNOT_USED/* look at execMain.c */
1230-
/* ----------------------------------------------------------------
1231-
* resetVarAttrLenForCreateTable -
1232-
* called when we do a SELECT * INTO TABLE tab
1233-
* needed for attributes that have a defined length, like bpchar and
1234-
* varchar
1235-
* resets length to -1 for those types
1236-
* ----------------------------------------------------------------
1237-
*/
1238-
void
1239-
resetVarAttrLenForCreateTable(TupleDesctupType)
1240-
{
1241-
intvarno;
1242-
1243-
for (varno=0;varno<tupType->natts;varno++)
1244-
{
1245-
if (tupType->attrs[varno]->atttypid==BPCHAROID||
1246-
tupType->attrs[varno]->atttypid==VARCHAROID)
1247-
/* set length to original -1 */
1248-
tupType->attrs[varno]->attlen=-1;
1249-
}
1250-
}
1251-
1252-
#endif

‎src/backend/nodes/copyfuncs.c‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.30 1998/01/15 18:59:20 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.31 1998/01/16 23:19:56 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -1480,8 +1480,8 @@ _copyTypeName(TypeName *from)
14801480
newnode->name=pstrdup(from->name);
14811481
newnode->timezone=from->timezone;
14821482
newnode->setof=from->setof;
1483+
newnode->typmod=from->typmod;
14831484
Node_Copy(from,newnode,arrayBounds);
1484-
newnode->typlen=from->typlen;
14851485

14861486
returnnewnode;
14871487
}

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