diff options
Diffstat (limited to 'src/backend/commands/variable.c')
| -rw-r--r-- | src/backend/commands/variable.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/backend/commands/variable.c b/src/backend/commands/variable.c index f262754a56e..e0ccd668e59 100644 --- a/src/backend/commands/variable.c +++ b/src/backend/commands/variable.c @@ -9,7 +9,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/commands/variable.c,v 1.102 2004/08/30 02:54:38 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/commands/variable.c,v 1.103 2004/08/31 19:28:51 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -475,16 +475,23 @@ show_timezone(void) const char * assign_XactIsoLevel(const char *value, bool doit, GucSource source) { - if (doit && source >= PGC_S_INTERACTIVE) + if (SerializableSnapshot != NULL) { - if (SerializableSnapshot != NULL) + if (source >= PGC_S_INTERACTIVE) ereport(ERROR, (errcode(ERRCODE_ACTIVE_SQL_TRANSACTION), errmsg("SET TRANSACTION ISOLATION LEVEL must be called before any query"))); - if (IsSubTransaction()) + else + return NULL; + } + if (IsSubTransaction()) + { + if (source >= PGC_S_INTERACTIVE) ereport(ERROR, (errcode(ERRCODE_ACTIVE_SQL_TRANSACTION), errmsg("SET TRANSACTION ISOLATION LEVEL must not be called in a subtransaction"))); + else + return NULL; } if (strcmp(value, "serializable") == 0) |