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Commitd87510a

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Combine options for RangeVarGetRelidExtended() into a flags argument.
A followup patch will add a SKIP_LOCKED option. To avoid introducingevermore arguments, breaking existing callers each time, introduce aflags argument. This'll no doubt break a few external users...Also change the MISSING_OK behaviour so a DEBUG1 debug message isemitted when a relation is not found.Author: Nathan BossartReviewed-By: Michael Paquier and Andres FreundDiscussion:https://postgr.es/m/20180306005349.b65whmvj7z6hbe2y@alap3.anarazel.de
1 parent9a89546 commitd87510a

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12 files changed

+45
-32
lines changed

12 files changed

+45
-32
lines changed

‎src/backend/catalog/namespace.c‎

Lines changed: 12 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -206,23 +206,25 @@ static bool MatchNamedCall(HeapTuple proctup, int nargs, List *argnames,
206206
*Given a RangeVar describing an existing relation,
207207
*select the proper namespace and look up the relation OID.
208208
*
209-
* If the schema or relation is not found, return InvalidOid ifmissing_ok
210-
*= true, otherwise raise an error.
209+
* If the schema or relation is not found, return InvalidOid ifflags contains
210+
*RVR_MISSING_OK, otherwise raise an error.
211211
*
212-
* If nowait = true, throw an error if we'd have to wait for a lock.
212+
* If flags contains RVR_NOWAIT, throw an error if we'd have to wait for a
213+
* lock.
213214
*
214215
* Callback allows caller to check permissions or acquire additional locks
215216
* prior to grabbing the relation lock.
216217
*/
217218
Oid
218219
RangeVarGetRelidExtended(constRangeVar*relation,LOCKMODElockmode,
219-
boolmissing_ok,boolnowait,
220+
uint32flags,
220221
RangeVarGetRelidCallbackcallback,void*callback_arg)
221222
{
222223
uint64inval_count;
223224
OidrelId;
224225
OidoldRelId=InvalidOid;
225226
boolretry= false;
227+
boolmissing_ok= (flags&RVR_MISSING_OK)!=0;
226228

227229
/*
228230
* We check the catalog name and then ignore it.
@@ -361,7 +363,7 @@ RangeVarGetRelidExtended(const RangeVar *relation, LOCKMODE lockmode,
361363
*/
362364
if (!OidIsValid(relId))
363365
AcceptInvalidationMessages();
364-
elseif (!nowait)
366+
elseif (!(flags&RVR_NOWAIT))
365367
LockRelationOid(relId,lockmode);
366368
elseif (!ConditionalLockRelationOid(relId,lockmode))
367369
{
@@ -392,15 +394,17 @@ RangeVarGetRelidExtended(const RangeVar *relation, LOCKMODE lockmode,
392394
oldRelId=relId;
393395
}
394396

395-
if (!OidIsValid(relId)&& !missing_ok)
397+
if (!OidIsValid(relId))
396398
{
399+
intelevel=missing_ok ?DEBUG1 :ERROR;
400+
397401
if (relation->schemaname)
398-
ereport(ERROR,
402+
ereport(elevel,
399403
(errcode(ERRCODE_UNDEFINED_TABLE),
400404
errmsg("relation \"%s.%s\" does not exist",
401405
relation->schemaname,relation->relname)));
402406
else
403-
ereport(ERROR,
407+
ereport(elevel,
404408
(errcode(ERRCODE_UNDEFINED_TABLE),
405409
errmsg("relation \"%s\" does not exist",
406410
relation->relname)));

‎src/backend/commands/cluster.c‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -115,7 +115,7 @@ cluster(ClusterStmt *stmt, bool isTopLevel)
115115
/* Find, lock, and check permissions on the table */
116116
tableOid=RangeVarGetRelidExtended(stmt->relation,
117117
AccessExclusiveLock,
118-
false, false,
118+
0,
119119
RangeVarCallbackOwnsTable,NULL);
120120
rel=heap_open(tableOid,NoLock);
121121

‎src/backend/commands/indexcmds.c‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -2091,7 +2091,7 @@ ReindexIndex(RangeVar *indexRelation, int options)
20912091
* used here must match the index lock obtained in reindex_index().
20922092
*/
20932093
indOid=RangeVarGetRelidExtended(indexRelation,AccessExclusiveLock,
2094-
false, false,
2094+
0,
20952095
RangeVarCallbackForReindexIndex,
20962096
(void*)&heapOid);
20972097

@@ -2183,7 +2183,7 @@ ReindexTable(RangeVar *relation, int options)
21832183
OidheapOid;
21842184

21852185
/* The lock level used here should match reindex_relation(). */
2186-
heapOid=RangeVarGetRelidExtended(relation,ShareLock,false, false,
2186+
heapOid=RangeVarGetRelidExtended(relation,ShareLock,0,
21872187
RangeVarCallbackOwnsTable,NULL);
21882188

21892189
if (!reindex_relation(heapOid,

‎src/backend/commands/lockcmds.c‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -61,8 +61,8 @@ LockTableCommand(LockStmt *lockstmt)
6161
boolrecurse=rv->inh;
6262
Oidreloid;
6363

64-
reloid=RangeVarGetRelidExtended(rv,lockstmt->mode, false,
65-
lockstmt->nowait,
64+
reloid=RangeVarGetRelidExtended(rv,lockstmt->mode,
65+
lockstmt->nowait ?RVR_NOWAIT :0,
6666
RangeVarCallbackForLockTable,
6767
(void*)&lockstmt->mode);
6868

‎src/backend/commands/matview.c‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -161,7 +161,7 @@ ExecRefreshMatView(RefreshMatViewStmt *stmt, const char *queryString,
161161
* Get a lock until end of transaction.
162162
*/
163163
matviewOid=RangeVarGetRelidExtended(stmt->relation,
164-
lockmode,false, false,
164+
lockmode,0,
165165
RangeVarCallbackOwnsTable,NULL);
166166
matviewRel=heap_open(matviewOid,NoLock);
167167

‎src/backend/commands/policy.c‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -743,7 +743,7 @@ CreatePolicy(CreatePolicyStmt *stmt)
743743

744744
/* Get id of table. Also handles permissions checks. */
745745
table_id=RangeVarGetRelidExtended(stmt->table,AccessExclusiveLock,
746-
false, false,
746+
0,
747747
RangeVarCallbackForPolicy,
748748
(void*)stmt);
749749

@@ -915,7 +915,7 @@ AlterPolicy(AlterPolicyStmt *stmt)
915915

916916
/* Get id of table. Also handles permissions checks. */
917917
table_id=RangeVarGetRelidExtended(stmt->table,AccessExclusiveLock,
918-
false, false,
918+
0,
919919
RangeVarCallbackForPolicy,
920920
(void*)stmt);
921921

@@ -1215,7 +1215,7 @@ rename_policy(RenameStmt *stmt)
12151215

12161216
/* Get id of table. Also handles permissions checks. */
12171217
table_id=RangeVarGetRelidExtended(stmt->relation,AccessExclusiveLock,
1218-
false, false,
1218+
0,
12191219
RangeVarCallbackForPolicy,
12201220
(void*)stmt);
12211221

‎src/backend/commands/sequence.c‎

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -432,8 +432,7 @@ AlterSequence(ParseState *pstate, AlterSeqStmt *stmt)
432432
/* Open and lock sequence, and check for ownership along the way. */
433433
relid=RangeVarGetRelidExtended(stmt->sequence,
434434
ShareRowExclusiveLock,
435-
stmt->missing_ok,
436-
false,
435+
stmt->missing_ok ?RVR_MISSING_OK :0,
437436
RangeVarCallbackOwnsRelation,
438437
NULL);
439438
if (relid==InvalidOid)

‎src/backend/commands/tablecmds.c‎

Lines changed: 8 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -1159,8 +1159,7 @@ RemoveRelations(DropStmt *drop)
11591159
state.heapOid=InvalidOid;
11601160
state.partParentOid=InvalidOid;
11611161
state.concurrent=drop->concurrent;
1162-
relOid=RangeVarGetRelidExtended(rel,lockmode, true,
1163-
false,
1162+
relOid=RangeVarGetRelidExtended(rel,lockmode,RVR_MISSING_OK,
11641163
RangeVarCallbackForDropRelation,
11651164
(void*)&state);
11661165

@@ -2793,7 +2792,7 @@ renameatt(RenameStmt *stmt)
27932792

27942793
/* lock level taken here should match renameatt_internal */
27952794
relid=RangeVarGetRelidExtended(stmt->relation,AccessExclusiveLock,
2796-
stmt->missing_ok, false,
2795+
stmt->missing_ok ?RVR_MISSING_OK :0,
27972796
RangeVarCallbackForRenameAttribute,
27982797
NULL);
27992798

@@ -2945,7 +2944,7 @@ RenameConstraint(RenameStmt *stmt)
29452944
{
29462945
/* lock level taken here should match rename_constraint_internal */
29472946
relid=RangeVarGetRelidExtended(stmt->relation,AccessExclusiveLock,
2948-
stmt->missing_ok, false,
2947+
stmt->missing_ok ?RVR_MISSING_OK :0,
29492948
RangeVarCallbackForRenameAttribute,
29502949
NULL);
29512950
if (!OidIsValid(relid))
@@ -2987,7 +2986,7 @@ RenameRelation(RenameStmt *stmt)
29872986
* escalation.
29882987
*/
29892988
relid=RangeVarGetRelidExtended(stmt->relation,AccessExclusiveLock,
2990-
stmt->missing_ok, false,
2989+
stmt->missing_ok ?RVR_MISSING_OK :0,
29912990
RangeVarCallbackForAlterRelation,
29922991
(void*)stmt);
29932992

@@ -3146,7 +3145,8 @@ CheckTableNotInUse(Relation rel, const char *stmt)
31463145
Oid
31473146
AlterTableLookupRelation(AlterTableStmt*stmt,LOCKMODElockmode)
31483147
{
3149-
returnRangeVarGetRelidExtended(stmt->relation,lockmode,stmt->missing_ok, false,
3148+
returnRangeVarGetRelidExtended(stmt->relation,lockmode,
3149+
stmt->missing_ok ?RVR_MISSING_OK :0,
31503150
RangeVarCallbackForAlterRelation,
31513151
(void*)stmt);
31523152
}
@@ -12683,7 +12683,7 @@ AlterTableNamespace(AlterObjectSchemaStmt *stmt, Oid *oldschema)
1268312683
ObjectAddressmyself;
1268412684

1268512685
relid=RangeVarGetRelidExtended(stmt->relation,AccessExclusiveLock,
12686-
stmt->missing_ok, false,
12686+
stmt->missing_ok ?RVR_MISSING_OK :0,
1268712687
RangeVarCallbackForAlterRelation,
1268812688
(void*)stmt);
1268912689

@@ -14613,7 +14613,7 @@ ATExecAttachPartitionIdx(List **wqueue, Relation parentIdx, RangeVar *name)
1461314613
state.parentTblOid=parentIdx->rd_index->indrelid;
1461414614
state.lockedParentTbl= false;
1461514615
partIdxId=
14616-
RangeVarGetRelidExtended(name,AccessExclusiveLock,false, false,
14616+
RangeVarGetRelidExtended(name,AccessExclusiveLock,0,
1461714617
RangeVarCallbackForAttachIndex,
1461814618
(void*)&state);
1461914619
/* Not there? */

‎src/backend/commands/trigger.c‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1667,7 +1667,7 @@ renametrig(RenameStmt *stmt)
16671667
* release until end of transaction).
16681668
*/
16691669
relid=RangeVarGetRelidExtended(stmt->relation,AccessExclusiveLock,
1670-
false, false,
1670+
0,
16711671
RangeVarCallbackForRenameTrigger,
16721672
NULL);
16731673

‎src/backend/rewrite/rewriteDefine.c‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -951,7 +951,7 @@ RenameRewriteRule(RangeVar *relation, const char *oldName,
951951
* release until end of transaction).
952952
*/
953953
relid=RangeVarGetRelidExtended(relation,AccessExclusiveLock,
954-
false, false,
954+
0,
955955
RangeVarCallbackForRenameRule,
956956
NULL);
957957

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