diff options
Diffstat (limited to 'src/include/utils/rel.h')
| -rw-r--r-- | src/include/utils/rel.h | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/src/include/utils/rel.h b/src/include/utils/rel.h index 4669d8a67e..f7f84e6f71 100644 --- a/src/include/utils/rel.h +++ b/src/include/utils/rel.h @@ -81,6 +81,7 @@ typedef struct RelationData struct SMgrRelationData *rd_smgr; /* cached file handle, or NULL */ int rd_refcnt; /* reference count */ BackendId rd_backend; /* owning backend id, if temporary relation */ + bool rd_islocaltemp; /* rel is a temp rel of this session */ bool rd_isnailed; /* rel is nailed in cache */ bool rd_isvalid; /* relcache entry is valid */ char rd_indexvalid; /* state of rd_indexlist: 0 = not valid, 1 = @@ -363,21 +364,15 @@ typedef struct StdRdOptions ((relation)->rd_rel->relpersistence == RELPERSISTENCE_TEMP) /* - * RelationUsesTempNamespace - * True if relation's catalog entries live in a private namespace. - */ -#define RelationUsesTempNamespace(relation) \ - ((relation)->rd_rel->relpersistence == RELPERSISTENCE_TEMP) - -/* * RELATION_IS_LOCAL * If a rel is either temp or newly created in the current transaction, - * it can be assumed to be visible only to the current backend. + * it can be assumed to be accessible only to the current backend. + * This is typically used to decide that we can skip acquiring locks. * * Beware of multiple eval of argument */ #define RELATION_IS_LOCAL(relation) \ - ((relation)->rd_backend == MyBackendId || \ + ((relation)->rd_islocaltemp || \ (relation)->rd_createSubid != InvalidSubTransactionId) /* @@ -387,8 +382,8 @@ typedef struct StdRdOptions * Beware of multiple eval of argument */ #define RELATION_IS_OTHER_TEMP(relation) \ - ((relation)->rd_rel->relpersistence == RELPERSISTENCE_TEMP \ - && (relation)->rd_backend != MyBackendId) + ((relation)->rd_rel->relpersistence == RELPERSISTENCE_TEMP && \ + !(relation)->rd_islocaltemp) /* routines in utils/cache/relcache.c */ extern void RelationIncrementReferenceCount(Relation rel); |