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Commit 04700b6

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peterepetere
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Rename TransactionChain functions
We call this thing a "transaction block" everywhere except in a few functions, where it is mysteriously called a "transaction chain". In the SQL standard, a transaction chain is something different. So rename these functions to match the common terminology. Reviewed-by: Alvaro Herrera <alvherre@alvh.no-ip.org>
1 parent 8d47a90 commit 04700b6

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14 files changed

+52
-52
lines changed

14 files changed

+52
-52
lines changed

‎src/backend/access/transam/xact.c

Lines changed: 14 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -310,7 +310,7 @@ static void CallSubXactCallbacks(SubXactEvent event,
310310
SubTransactionId mySubid,
311311
SubTransactionId parentSubid);
312312
static void CleanupTransaction(void);
313-
static void CheckTransactionChain(bool isTopLevel, bool throwError,
313+
static void CheckTransactionBlock(bool isTopLevel, bool throwError,
314314
const char *stmtType);
315315
static void CommitTransaction(void);
316316
static TransactionId RecordTransactionAbort(bool isSubXact);
@@ -3134,7 +3134,7 @@ AbortCurrentTransaction(void)
31343134
}
31353135

31363136
/*
3137-
* PreventTransactionChain
3137+
* PreventInTransactionBlock
31383138
*
31393139
* This routine is to be called by statements that must not run inside
31403140
* a transaction block, typically because they have non-rollback-able
@@ -3151,7 +3151,7 @@ AbortCurrentTransaction(void)
31513151
* stmtType: statement type name, for error messages.
31523152
*/
31533153
void
3154-
PreventTransactionChain(bool isTopLevel, const char *stmtType)
3154+
PreventInTransactionBlock(bool isTopLevel, const char *stmtType)
31553155
{
31563156
/*
31573157
* xact block already started?
@@ -3190,8 +3190,8 @@ PreventTransactionChain(bool isTopLevel, const char *stmtType)
31903190
}
31913191

31923192
/*
3193-
* WarnNoTranactionChain
3194-
* RequireTransactionChain
3193+
* WarnNoTranactionBlock
3194+
* RequireTransactionBlock
31953195
*
31963196
* These two functions allow for warnings or errors if a command is executed
31973197
* outside of a transaction block. This is useful for commands that have no
@@ -3204,29 +3204,29 @@ PreventTransactionChain(bool isTopLevel, const char *stmtType)
32043204
* If we appear to be running inside a user-defined function, we do not
32053205
* issue anything, since the function could issue more commands that make
32063206
* use of the current statement's results. Likewise subtransactions.
3207-
* Thus these are inverses for PreventTransactionChain.
3207+
* Thus these are inverses for PreventInTransactionBlock.
32083208
*
32093209
* isTopLevel: passed down from ProcessUtility to determine whether we are
32103210
* inside a function.
32113211
* stmtType: statement type name, for warning or error messages.
32123212
*/
32133213
void
3214-
WarnNoTransactionChain(bool isTopLevel, const char *stmtType)
3214+
WarnNoTransactionBlock(bool isTopLevel, const char *stmtType)
32153215
{
3216-
CheckTransactionChain(isTopLevel, false, stmtType);
3216+
CheckTransactionBlock(isTopLevel, false, stmtType);
32173217
}
32183218

32193219
void
3220-
RequireTransactionChain(bool isTopLevel, const char *stmtType)
3220+
RequireTransactionBlock(bool isTopLevel, const char *stmtType)
32213221
{
3222-
CheckTransactionChain(isTopLevel, true, stmtType);
3222+
CheckTransactionBlock(isTopLevel, true, stmtType);
32233223
}
32243224

32253225
/*
32263226
* This is the implementation of the above two.
32273227
*/
32283228
static void
3229-
CheckTransactionChain(bool isTopLevel, bool throwError, const char *stmtType)
3229+
CheckTransactionBlock(bool isTopLevel, bool throwError, const char *stmtType)
32303230
{
32313231
/*
32323232
* xact block already started?
@@ -3255,7 +3255,7 @@ CheckTransactionChain(bool isTopLevel, bool throwError, const char *stmtType)
32553255
}
32563256

32573257
/*
3258-
* IsInTransactionChain
3258+
* IsInTransactionBlock
32593259
*
32603260
* This routine is for statements that need to behave differently inside
32613261
* a transaction block than when running as single commands. ANALYZE is
@@ -3265,10 +3265,10 @@ CheckTransactionChain(bool isTopLevel, bool throwError, const char *stmtType)
32653265
* inside a function.
32663266
*/
32673267
bool
3268-
IsInTransactionChain(bool isTopLevel)
3268+
IsInTransactionBlock(bool isTopLevel)
32693269
{
32703270
/*
3271-
* Return true on same conditions that would make PreventTransactionChain
3271+
* Return true on same conditions that would make PreventInTransactionBlock
32723272
* error out
32733273
*/
32743274
if (IsTransactionBlock())

‎src/backend/commands/cluster.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -202,7 +202,7 @@ cluster(ClusterStmt *stmt, bool isTopLevel)
202202
* We cannot run this form of CLUSTER inside a user transaction block;
203203
* we'd be holding locks way too long.
204204
*/
205-
PreventTransactionChain(isTopLevel, "CLUSTER");
205+
PreventInTransactionBlock(isTopLevel, "CLUSTER");
206206

207207
/*
208208
* Create special memory context for cross-transaction storage.

‎src/backend/commands/dbcommands.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1476,7 +1476,7 @@ AlterDatabase(ParseState *pstate, AlterDatabaseStmt *stmt, bool isTopLevel)
14761476
dtablespace->defname),
14771477
parser_errposition(pstate, dtablespace->location)));
14781478
/* this case isn't allowed within a transaction block */
1479-
PreventTransactionChain(isTopLevel, "ALTER DATABASE SET TABLESPACE");
1479+
PreventInTransactionBlock(isTopLevel, "ALTER DATABASE SET TABLESPACE");
14801480
movedb(stmt->dbname, defGetString(dtablespace));
14811481
return InvalidOid;
14821482
}

‎src/backend/commands/discard.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -63,7 +63,7 @@ DiscardAll(bool isTopLevel)
6363
* DISCARD ALL inside a transaction block would leave the transaction
6464
* still uncommitted.
6565
*/
66-
PreventTransactionChain(isTopLevel, "DISCARD ALL");
66+
PreventInTransactionBlock(isTopLevel, "DISCARD ALL");
6767

6868
/* Closing portals might run user-defined code, so do that first. */
6969
PortalHashTableDeleteAll();

‎src/backend/commands/portalcmds.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -63,7 +63,7 @@ PerformCursorOpen(DeclareCursorStmt *cstmt, ParamListInfo params,
6363
* user-visible effect).
6464
*/
6565
if (!(cstmt->options & CURSOR_OPT_HOLD))
66-
RequireTransactionChain(isTopLevel, "DECLARE CURSOR");
66+
RequireTransactionBlock(isTopLevel, "DECLARE CURSOR");
6767

6868
/*
6969
* Parse analysis was done already, but we still have to run the rule

‎src/backend/commands/subscriptioncmds.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -339,7 +339,7 @@ CreateSubscription(CreateSubscriptionStmt *stmt, bool isTopLevel)
339339
* replication slot.
340340
*/
341341
if (create_slot)
342-
PreventTransactionChain(isTopLevel, "CREATE SUBSCRIPTION ... WITH (create_slot = true)");
342+
PreventInTransactionBlock(isTopLevel, "CREATE SUBSCRIPTION ... WITH (create_slot = true)");
343343

344344
if (!superuser())
345345
ereport(ERROR,
@@ -897,7 +897,7 @@ DropSubscription(DropSubscriptionStmt *stmt, bool isTopLevel)
897897
* don't have the proper facilities for that.
898898
*/
899899
if (slotname)
900-
PreventTransactionChain(isTopLevel, "DROP SUBSCRIPTION");
900+
PreventInTransactionBlock(isTopLevel, "DROP SUBSCRIPTION");
901901

902902

903903
ObjectAddressSet(myself, SubscriptionRelationId, subid);

‎src/backend/commands/typecmds.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1321,7 +1321,7 @@ AlterEnum(AlterEnumStmt *stmt, bool isTopLevel)
13211321
!(tup->t_data->t_infomask & HEAP_UPDATED))
13221322
/* safe to do inside transaction block */ ;
13231323
else
1324-
PreventTransactionChain(isTopLevel, "ALTER TYPE ... ADD");
1324+
PreventInTransactionBlock(isTopLevel, "ALTER TYPE ... ADD");
13251325

13261326
AddEnumLabel(enum_type_oid, stmt->newVal,
13271327
stmt->newValNeighbor, stmt->newValIsAfter,

‎src/backend/commands/vacuum.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -186,11 +186,11 @@ vacuum(int options, List *relations, VacuumParams *params,
186186
*/
187187
if (options & VACOPT_VACUUM)
188188
{
189-
PreventTransactionChain(isTopLevel, stmttype);
189+
PreventInTransactionBlock(isTopLevel, stmttype);
190190
in_outer_xact = false;
191191
}
192192
else
193-
in_outer_xact = IsInTransactionChain(isTopLevel);
193+
in_outer_xact = IsInTransactionBlock(isTopLevel);
194194

195195
/*
196196
* Due to static variables vac_context, anl_context and vac_strategy,

‎src/backend/replication/walsender.c

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1516,7 +1516,7 @@ exec_replication_command(const char *cmd_string)
15161516
break;
15171517

15181518
case T_BaseBackupCmd:
1519-
PreventTransactionChain(true, "BASE_BACKUP");
1519+
PreventInTransactionBlock(true, "BASE_BACKUP");
15201520
SendBaseBackup((BaseBackupCmd *) cmd_node);
15211521
break;
15221522

@@ -1532,7 +1532,7 @@ exec_replication_command(const char *cmd_string)
15321532
{
15331533
StartReplicationCmd *cmd = (StartReplicationCmd *) cmd_node;
15341534

1535-
PreventTransactionChain(true, "START_REPLICATION");
1535+
PreventInTransactionBlock(true, "START_REPLICATION");
15361536

15371537
if (cmd->kind == REPLICATION_KIND_PHYSICAL)
15381538
StartReplication(cmd);
@@ -1542,7 +1542,7 @@ exec_replication_command(const char *cmd_string)
15421542
}
15431543

15441544
case T_TimeLineHistoryCmd:
1545-
PreventTransactionChain(true, "TIMELINE_HISTORY");
1545+
PreventInTransactionBlock(true, "TIMELINE_HISTORY");
15461546
SendTimeLineHistory((TimeLineHistoryCmd *) cmd_node);
15471547
break;
15481548

‎src/backend/tcop/utility.c

Lines changed: 15 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -453,13 +453,13 @@ standard_ProcessUtility(PlannedStmt *pstmt,
453453
break;
454454

455455
case TRANS_STMT_COMMIT_PREPARED:
456-
PreventTransactionChain(isTopLevel, "COMMIT PREPARED");
456+
PreventInTransactionBlock(isTopLevel, "COMMIT PREPARED");
457457
PreventCommandDuringRecovery("COMMIT PREPARED");
458458
FinishPreparedTransaction(stmt->gid, true);
459459
break;
460460

461461
case TRANS_STMT_ROLLBACK_PREPARED:
462-
PreventTransactionChain(isTopLevel, "ROLLBACK PREPARED");
462+
PreventInTransactionBlock(isTopLevel, "ROLLBACK PREPARED");
463463
PreventCommandDuringRecovery("ROLLBACK PREPARED");
464464
FinishPreparedTransaction(stmt->gid, false);
465465
break;
@@ -473,7 +473,7 @@ standard_ProcessUtility(PlannedStmt *pstmt,
473473
ListCell *cell;
474474
char *name = NULL;
475475

476-
RequireTransactionChain(isTopLevel, "SAVEPOINT");
476+
RequireTransactionBlock(isTopLevel, "SAVEPOINT");
477477

478478
foreach(cell, stmt->options)
479479
{
@@ -490,12 +490,12 @@ standard_ProcessUtility(PlannedStmt *pstmt,
490490
break;
491491

492492
case TRANS_STMT_RELEASE:
493-
RequireTransactionChain(isTopLevel, "RELEASE SAVEPOINT");
493+
RequireTransactionBlock(isTopLevel, "RELEASE SAVEPOINT");
494494
ReleaseSavepoint(stmt->options);
495495
break;
496496

497497
case TRANS_STMT_ROLLBACK_TO:
498-
RequireTransactionChain(isTopLevel, "ROLLBACK TO SAVEPOINT");
498+
RequireTransactionBlock(isTopLevel, "ROLLBACK TO SAVEPOINT");
499499
RollbackToSavepoint(stmt->options);
500500

501501
/*
@@ -536,13 +536,13 @@ standard_ProcessUtility(PlannedStmt *pstmt,
536536

537537
case T_CreateTableSpaceStmt:
538538
/* no event triggers for global objects */
539-
PreventTransactionChain(isTopLevel, "CREATE TABLESPACE");
539+
PreventInTransactionBlock(isTopLevel, "CREATE TABLESPACE");
540540
CreateTableSpace((CreateTableSpaceStmt *) parsetree);
541541
break;
542542

543543
case T_DropTableSpaceStmt:
544544
/* no event triggers for global objects */
545-
PreventTransactionChain(isTopLevel, "DROP TABLESPACE");
545+
PreventInTransactionBlock(isTopLevel, "DROP TABLESPACE");
546546
DropTableSpace((DropTableSpaceStmt *) parsetree);
547547
break;
548548

@@ -592,7 +592,7 @@ standard_ProcessUtility(PlannedStmt *pstmt,
592592

593593
case T_CreatedbStmt:
594594
/* no event triggers for global objects */
595-
PreventTransactionChain(isTopLevel, "CREATE DATABASE");
595+
PreventInTransactionBlock(isTopLevel, "CREATE DATABASE");
596596
createdb(pstate, (CreatedbStmt *) parsetree);
597597
break;
598598

@@ -611,7 +611,7 @@ standard_ProcessUtility(PlannedStmt *pstmt,
611611
DropdbStmt *stmt = (DropdbStmt *) parsetree;
612612

613613
/* no event triggers for global objects */
614-
PreventTransactionChain(isTopLevel, "DROP DATABASE");
614+
PreventInTransactionBlock(isTopLevel, "DROP DATABASE");
615615
dropdb(stmt->dbname, stmt->missing_ok);
616616
}
617617
break;
@@ -690,7 +690,7 @@ standard_ProcessUtility(PlannedStmt *pstmt,
690690
break;
691691

692692
case T_AlterSystemStmt:
693-
PreventTransactionChain(isTopLevel, "ALTER SYSTEM");
693+
PreventInTransactionBlock(isTopLevel, "ALTER SYSTEM");
694694
AlterSystemSetConfigFile((AlterSystemStmt *) parsetree);
695695
break;
696696

@@ -756,13 +756,13 @@ standard_ProcessUtility(PlannedStmt *pstmt,
756756
* Since the lock would just get dropped immediately, LOCK TABLE
757757
* outside a transaction block is presumed to be user error.
758758
*/
759-
RequireTransactionChain(isTopLevel, "LOCK TABLE");
759+
RequireTransactionBlock(isTopLevel, "LOCK TABLE");
760760
/* forbidden in parallel mode due to CommandIsReadOnly */
761761
LockTableCommand((LockStmt *) parsetree);
762762
break;
763763

764764
case T_ConstraintsSetStmt:
765-
WarnNoTransactionChain(isTopLevel, "SET CONSTRAINTS");
765+
WarnNoTransactionBlock(isTopLevel, "SET CONSTRAINTS");
766766
AfterTriggerSetState((ConstraintsSetStmt *) parsetree);
767767
break;
768768

@@ -808,7 +808,7 @@ standard_ProcessUtility(PlannedStmt *pstmt,
808808
* start-transaction-command calls would not have the
809809
* intended effect!
810810
*/
811-
PreventTransactionChain(isTopLevel,
811+
PreventInTransactionBlock(isTopLevel,
812812
(stmt->kind == REINDEX_OBJECT_SCHEMA) ? "REINDEX SCHEMA" :
813813
(stmt->kind == REINDEX_OBJECT_SYSTEM) ? "REINDEX SYSTEM" :
814814
"REINDEX DATABASE");
@@ -1307,7 +1307,7 @@ ProcessUtilitySlow(ParseState *pstate,
13071307
List *inheritors = NIL;
13081308

13091309
if (stmt->concurrent)
1310-
PreventTransactionChain(isTopLevel,
1310+
PreventInTransactionBlock(isTopLevel,
13111311
"CREATE INDEX CONCURRENTLY");
13121312

13131313
/*
@@ -1715,7 +1715,7 @@ ExecDropStmt(DropStmt *stmt, bool isTopLevel)
17151715
{
17161716
case OBJECT_INDEX:
17171717
if (stmt->concurrent)
1718-
PreventTransactionChain(isTopLevel,
1718+
PreventInTransactionBlock(isTopLevel,
17191719
"DROP INDEX CONCURRENTLY");
17201720
/* fall through */
17211721

‎src/backend/utils/misc/guc.c

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -7348,7 +7348,7 @@ ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel)
73487348
case VAR_SET_VALUE:
73497349
case VAR_SET_CURRENT:
73507350
if (stmt->is_local)
7351-
WarnNoTransactionChain(isTopLevel, "SET LOCAL");
7351+
WarnNoTransactionBlock(isTopLevel, "SET LOCAL");
73527352
(void) set_config_option(stmt->name,
73537353
ExtractSetVariableArgs(stmt),
73547354
(superuser() ? PGC_SUSET : PGC_USERSET),
@@ -7368,7 +7368,7 @@ ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel)
73687368
{
73697369
ListCell *head;
73707370

7371-
WarnNoTransactionChain(isTopLevel, "SET TRANSACTION");
7371+
WarnNoTransactionBlock(isTopLevel, "SET TRANSACTION");
73727372

73737373
foreach(head, stmt->args)
73747374
{
@@ -7419,7 +7419,7 @@ ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel)
74197419
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
74207420
errmsg("SET LOCAL TRANSACTION SNAPSHOT is not implemented")));
74217421

7422-
WarnNoTransactionChain(isTopLevel, "SET TRANSACTION");
7422+
WarnNoTransactionBlock(isTopLevel, "SET TRANSACTION");
74237423
Assert(nodeTag(&con->val) == T_String);
74247424
ImportSnapshot(strVal(&con->val));
74257425
}
@@ -7429,11 +7429,11 @@ ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel)
74297429
break;
74307430
case VAR_SET_DEFAULT:
74317431
if (stmt->is_local)
7432-
WarnNoTransactionChain(isTopLevel, "SET LOCAL");
7432+
WarnNoTransactionBlock(isTopLevel, "SET LOCAL");
74337433
/* fall through */
74347434
case VAR_RESET:
74357435
if (strcmp(stmt->name, "transaction_isolation") == 0)
7436-
WarnNoTransactionChain(isTopLevel, "RESET TRANSACTION");
7436+
WarnNoTransactionBlock(isTopLevel, "RESET TRANSACTION");
74377437

74387438
(void) set_config_option(stmt->name,
74397439
NULL,

‎src/backend/utils/time/snapmgr.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1171,7 +1171,7 @@ ExportSnapshot(Snapshot snapshot)
11711171
char pathtmp[MAXPGPATH];
11721172

11731173
/*
1174-
* It's tempting to call RequireTransactionChain here, since it's not very
1174+
* It's tempting to call RequireTransactionBlock here, since it's not very
11751175
* useful to export a snapshot that will disappear immediately afterwards.
11761176
* However, we haven't got enough information to do that, since we don't
11771177
* know if we're at top level or not. For example, we could be inside a

‎src/bin/psql/common.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -2047,7 +2047,7 @@ command_no_begin(const char *query)
20472047

20482048
/*
20492049
* Commands not allowed within transactions. The statements checked for
2050-
* here should be exactly those that call PreventTransactionChain() in the
2050+
* here should be exactly those that call PreventInTransactionBlock() in the
20512051
* backend.
20522052
*/
20532053
if (wordlen == 6 && pg_strncasecmp(query, "vacuum", 6) == 0)

‎src/include/access/xact.h

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -369,10 +369,10 @@ extern bool IsTransactionBlock(void);
369369
extern bool IsTransactionOrTransactionBlock(void);
370370
extern char TransactionBlockStatusCode(void);
371371
extern void AbortOutOfAnyTransaction(void);
372-
extern void PreventTransactionChain(bool isTopLevel, const char *stmtType);
373-
extern void RequireTransactionChain(bool isTopLevel, const char *stmtType);
374-
extern void WarnNoTransactionChain(bool isTopLevel, const char *stmtType);
375-
extern bool IsInTransactionChain(bool isTopLevel);
372+
extern void PreventInTransactionBlock(bool isTopLevel, const char *stmtType);
373+
extern void RequireTransactionBlock(bool isTopLevel, const char *stmtType);
374+
extern void WarnNoTransactionBlock(bool isTopLevel, const char *stmtType);
375+
extern bool IsInTransactionBlock(bool isTopLevel);
376376
extern void RegisterXactCallback(XactCallback callback, void *arg);
377377
extern void UnregisterXactCallback(XactCallback callback, void *arg);
378378
extern void RegisterSubXactCallback(SubXactCallback callback, void *arg);

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