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Commit51d2e3b

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committed
Repair bug noticed by Deepak Bhole: a shell type should have a dependency
on its namespace, so that it will go away if the schema is dropped.
1 parentfe7f8f2 commit51d2e3b

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3 files changed

+71
-43
lines changed

3 files changed

+71
-43
lines changed

‎src/backend/catalog/pg_type.c‎

Lines changed: 53 additions & 26 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
*
99
*
1010
* IDENTIFICATION
11-
* $Header: /cvsroot/pgsql/src/backend/catalog/pg_type.c,v 1.85 2002/12/06 05:00:10 momjian Exp $
11+
* $Header: /cvsroot/pgsql/src/backend/catalog/pg_type.c,v 1.86 2003/01/08 21:40:39 tgl Exp $
1212
*
1313
*-------------------------------------------------------------------------
1414
*/
@@ -105,6 +105,21 @@ TypeShellMake(const char *typeName, Oid typeNamespace)
105105

106106
CatalogUpdateIndexes(pg_type_desc,tup);
107107

108+
/*
109+
* Create dependencies. We can/must skip this in bootstrap mode.
110+
*/
111+
if (!IsBootstrapProcessingMode())
112+
GenerateTypeDependencies(typeNamespace,
113+
typoid,
114+
InvalidOid,
115+
0,
116+
InvalidOid,
117+
InvalidOid,
118+
InvalidOid,
119+
InvalidOid,
120+
NULL,
121+
false);
122+
108123
/*
109124
* clean up and return the type-oid
110125
*/
@@ -129,7 +144,7 @@ Oid
129144
TypeCreate(constchar*typeName,
130145
OidtypeNamespace,
131146
OidassignedTypeOid,
132-
OidrelationOid,/* only for 'c'atalogtypeType */
147+
OidrelationOid,/* only for 'c'atalogtypes */
133148
charrelationKind,/* ditto */
134149
int16internalSize,
135150
chartypeType,
@@ -149,6 +164,7 @@ TypeCreate(const char *typeName,
149164
{
150165
Relationpg_type_desc;
151166
OidtypeObjectId;
167+
boolrebuildDeps= false;
152168
HeapTupletup;
153169
charnulls[Natts_pg_type];
154170
charreplaces[Natts_pg_type];
@@ -268,6 +284,8 @@ TypeCreate(const char *typeName,
268284
simple_heap_update(pg_type_desc,&tup->t_self,tup);
269285

270286
typeObjectId=HeapTupleGetOid(tup);
287+
288+
rebuildDeps= true;/* get rid of shell type's dependencies */
271289
}
272290
else
273291
{
@@ -290,7 +308,6 @@ TypeCreate(const char *typeName,
290308
* Create dependencies. We can/must skip this in bootstrap mode.
291309
*/
292310
if (!IsBootstrapProcessingMode())
293-
{
294311
GenerateTypeDependencies(typeNamespace,
295312
typeObjectId,
296313
relationOid,
@@ -299,9 +316,10 @@ TypeCreate(const char *typeName,
299316
outputProcedure,
300317
elementType,
301318
baseType,
302-
defaultTypeBin,
303-
false);
304-
}
319+
(defaultTypeBin ?
320+
stringToNode(defaultTypeBin) :
321+
(void*)NULL),
322+
rebuildDeps);
305323

306324
/*
307325
* finish up
@@ -311,26 +329,30 @@ TypeCreate(const char *typeName,
311329
returntypeObjectId;
312330
}
313331

332+
/*
333+
* GenerateTypeDependencies: build the dependencies needed for a type
334+
*
335+
* If rebuild is true, we remove existing dependencies and rebuild them
336+
* from scratch. This is needed for ALTER TYPE, and also when replacing
337+
* a shell type.
338+
*
339+
* NOTE: a shell type will have a dependency to its namespace, and no others.
340+
*/
314341
void
315342
GenerateTypeDependencies(OidtypeNamespace,
316343
OidtypeObjectId,
317-
OidrelationOid,/* only for 'c'atalogtypeType */
318-
charrelationKind,
344+
OidrelationOid,/* only for 'c'atalogtypes */
345+
charrelationKind,/* ditto */
319346
OidinputProcedure,
320347
OidoutputProcedure,
321348
OidelementType,
322349
OidbaseType,
323-
char*defaultTypeBin,/* cooked rep */
350+
Node*defaultExpr,
324351
boolrebuild)
325352
{
326353
ObjectAddressmyself,
327354
referenced;
328355

329-
/*
330-
* If true, we need to remove all current dependencies that the type
331-
* holds, and rebuild them from scratch. This allows us to easily
332-
* implement alter type, and alter domain statements.
333-
*/
334356
if (rebuild)
335357
deleteDependencyRecordsFor(RelOid_pg_type,
336358
typeObjectId);
@@ -350,15 +372,21 @@ GenerateTypeDependencies(Oid typeNamespace,
350372
}
351373

352374
/* Normal dependencies on the I/O functions */
353-
referenced.classId=RelOid_pg_proc;
354-
referenced.objectId=inputProcedure;
355-
referenced.objectSubId=0;
356-
recordDependencyOn(&myself,&referenced,DEPENDENCY_NORMAL);
375+
if (OidIsValid(inputProcedure))
376+
{
377+
referenced.classId=RelOid_pg_proc;
378+
referenced.objectId=inputProcedure;
379+
referenced.objectSubId=0;
380+
recordDependencyOn(&myself,&referenced,DEPENDENCY_NORMAL);
381+
}
357382

358-
referenced.classId=RelOid_pg_proc;
359-
referenced.objectId=outputProcedure;
360-
referenced.objectSubId=0;
361-
recordDependencyOn(&myself,&referenced,DEPENDENCY_NORMAL);
383+
if (OidIsValid(outputProcedure))
384+
{
385+
referenced.classId=RelOid_pg_proc;
386+
referenced.objectId=outputProcedure;
387+
referenced.objectSubId=0;
388+
recordDependencyOn(&myself,&referenced,DEPENDENCY_NORMAL);
389+
}
362390

363391
/*
364392
* If the type is a rowtype for a relation, mark it as internally
@@ -406,10 +434,9 @@ GenerateTypeDependencies(Oid typeNamespace,
406434
recordDependencyOn(&myself,&referenced,DEPENDENCY_NORMAL);
407435
}
408436

409-
/* Dependency on the default expression */
410-
if (defaultTypeBin)
411-
recordDependencyOnExpr(&myself,stringToNode(defaultTypeBin),
412-
NIL,DEPENDENCY_NORMAL);
437+
/* Normal dependency on the default expression. */
438+
if (defaultExpr)
439+
recordDependencyOnExpr(&myself,defaultExpr,NIL,DEPENDENCY_NORMAL);
413440
}
414441

415442
/*

‎src/backend/commands/typecmds.c‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
*
99
*
1010
* IDENTIFICATION
11-
* $Header: /cvsroot/pgsql/src/backend/commands/typecmds.c,v 1.27 2003/01/06 00:31:44 tgl Exp $
11+
* $Header: /cvsroot/pgsql/src/backend/commands/typecmds.c,v 1.28 2003/01/08 21:40:39 tgl Exp $
1212
*
1313
* DESCRIPTION
1414
* The "DefineFoo" routines take the parse tree and pick out the
@@ -1012,12 +1012,12 @@ AlterDomainDefault(List *names, Node *defaultRaw)
10121012
GenerateTypeDependencies(typTup->typnamespace,
10131013
domainoid,
10141014
typTup->typrelid,
1015-
InvalidOid,
1015+
0,/* relation kind is n/a */
10161016
typTup->typinput,
10171017
typTup->typoutput,
10181018
typTup->typelem,
10191019
typTup->typbasetype,
1020-
nodeToString(defaultExpr),
1020+
defaultExpr,
10211021
true);/* Rebuild is true */
10221022

10231023
/* Clean up */

‎src/include/catalog/pg_type.h‎

Lines changed: 15 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
99
* Portions Copyright (c) 1994, Regents of the University of California
1010
*
11-
* $Id: pg_type.h,v 1.137 2002/12/06 05:00:31 momjian Exp $
11+
* $Id: pg_type.h,v 1.138 2003/01/08 21:40:39 tgl Exp $
1212
*
1313
* NOTES
1414
* the genbki.sh script reads this file and generates .bki
@@ -19,6 +19,8 @@
1919
#ifndefPG_TYPE_H
2020
#definePG_TYPE_H
2121

22+
#include"nodes/nodes.h"
23+
2224
/* ----------------
2325
*postgres.h contains the system type definitions and the
2426
*CATALOG(), BOOTSTRAP and DATA() sugar words so this file
@@ -537,7 +539,7 @@ DATA(insert OID = 2282 ( opaquePGNSP PGUID 4 t p t \054 0 0 opaque_in opaque
537539
*/
538540
externOidTypeShellMake(constchar*typeName,OidtypeNamespace);
539541

540-
externOidTypeCreate(constchar*typeName,
542+
externOidTypeCreate(constchar*typeName,
541543
OidtypeNamespace,
542544
OidassignedTypeOid,
543545
OidrelationOid,
@@ -558,21 +560,20 @@ extern Oid TypeCreate(const char *typeName,
558560
int32typNDims,
559561
booltypeNotNull);
560562

561-
externvoid
562-
GenerateTypeDependencies(OidtypeNamespace,
563-
OidtypeObjectId,
564-
OidrelationOid,/* only for 'c'atalog typeType */
565-
charrelationKind,
566-
OidinputProcedure,
567-
OidoutputProcedure,
568-
OidelementType,
569-
OidbaseType,
570-
char*defaultTypeBin,/* cooked rep */
571-
boolrebuild);
572-
563+
externvoidGenerateTypeDependencies(OidtypeNamespace,
564+
OidtypeObjectId,
565+
OidrelationOid,
566+
charrelationKind,
567+
OidinputProcedure,
568+
OidoutputProcedure,
569+
OidelementType,
570+
OidbaseType,
571+
Node*defaultExpr,
572+
boolrebuild);
573573

574574
externvoidTypeRename(constchar*oldTypeName,OidtypeNamespace,
575575
constchar*newTypeName);
576+
576577
externchar*makeArrayTypeName(constchar*typeName);
577578

578579
#endif/* PG_TYPE_H */

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