GIF89a;
EcchiShell v1.0
/
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proc/
self/
root/
usr/
include/
pgsql/
rd_options ? \
((StdRdOptions *) (relation)->rd_options)->fillfactor : (defaultff))
/*
* RelationGetTargetPageUsage
* Returns the relation's desired space usage per page in bytes.
*/
#define RelationGetTargetPageUsage(relation, defaultff) \
(BLCKSZ * RelationGetFillFactor(relation, defaultff) / 100)
/*
* RelationGetTargetPageFreeSpace
* Returns the relation's desired freespace per page in bytes.
*/
#define RelationGetTargetPageFreeSpace(relation, defaultff) \
(BLCKSZ * (100 - RelationGetFillFactor(relation, defaultff)) / 100)
/*
* RelationIsSecurityView
* Returns whether the relation is security view, or not
*/
#define RelationIsSecurityView(relation) \
((relation)->rd_options ? \
((StdRdOptions *) (relation)->rd_options)->security_barrier : false)
/*
* RelationIsValid
* True iff relation descriptor is valid.
*/
#define RelationIsValid(relation) PointerIsValid(relation)
#define InvalidRelation ((Relation) NULL)
/*
* RelationHasReferenceCountZero
* True iff relation reference count is zero.
*
* Note:
* Assumes relation descriptor is valid.
*/
#define RelationHasReferenceCountZero(relation) \
((bool)((relation)->rd_refcnt == 0))
/*
* RelationGetForm
* Returns pg_class tuple for a relation.
*
* Note:
* Assumes relation descriptor is valid.
*/
#define RelationGetForm(relation) ((relation)->rd_rel)
/*
* RelationGetRelid
* Returns the OID of the relation
*/
#define RelationGetRelid(relation) ((relation)->rd_id)
/*
* RelationGetNumberOfAttributes
* Returns the number of attributes in a relation.
*/
#define RelationGetNumberOfAttributes(relation) ((relation)->rd_rel->relnatts)
/*
* RelationGetDescr
* Returns tuple descriptor for a relation.
*/
#define RelationGetDescr(relation) ((relation)->rd_att)
/*
* RelationGetRelationName
* Returns the rel's name.
*
* Note that the name is only unique within the containing namespace.
*/
#define RelationGetRelationName(relation) \
(NameStr((relation)->rd_rel->relname))
/*
* RelationGetNamespace
* Returns the rel's namespace OID.
*/
#define RelationGetNamespace(relation) \
((relation)->rd_rel->relnamespace)
/*
* RelationIsMapped
* True if the relation uses the relfilenode map.
*
* NB: this is only meaningful for relkinds that have storage, else it
* will misleadingly say "true".
*/
#define RelationIsMapped(relation) \
((relation)->rd_rel->relfilenode == InvalidOid)
/*
* RelationOpenSmgr
* Open the relation at the smgr level, if not already done.
*/
#define RelationOpenSmgr(relation) \
do { \
if ((relation)->rd_smgr == NULL) \
smgrsetowner(&((relation)->rd_smgr), smgropen((relation)->rd_node, (relation)->rd_backend)); \
} while (0)
/*
* RelationCloseSmgr
* Close the relation at the smgr level, if not already done.
*
* Note: smgrclose should unhook from owner pointer, hence the Assert.
*/
#define RelationCloseSmgr(relation) \
do { \
if ((relation)->rd_smgr != NULL) \
{ \
smgrclose((relation)->rd_smgr); \
Assert((relation)->rd_smgr == NULL); \
} \
} while (0)
/*
* RelationGetTargetBlock
* Fetch relation's current insertion target block.
*
* Returns InvalidBlockNumber if there is no current target block. Note
* that the target block status is discarded on any smgr-level invalidation.
*/
#define RelationGetTargetBlock(relation) \
( (relation)->rd_smgr != NULL ? (relation)->rd_smgr->smgr_targblock : InvalidBlockNumber )
/*
* RelationSetTargetBlock
* Set relation's current insertion target block.
*/
#define RelationSetTargetBlock(relation, targblock) \
do { \
RelationOpenSmgr(relation); \
(relation)->rd_smgr->smgr_targblock = (targblock); \
} while (0)
/*
* RelationNeedsWAL
* True if relation needs WAL.
*/
#define RelationNeedsWAL(relation) \
((relation)->rd_rel->relpersistence == RELPERSISTENCE_PERMANENT)
/*
* RelationUsesLocalBuffers
* True if relation's pages are stored in local buffers.
*/
#define RelationUsesLocalBuffers(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 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_islocaltemp || \
(relation)->rd_createSubid != InvalidSubTransactionId)
/*
* RELATION_IS_OTHER_TEMP
* Test for a temporary relation that belongs to some other session.
*
* Beware of multiple eval of argument
*/
#define RELATION_IS_OTHER_TEMP(relation) \
((relation)->rd_rel->relpersistence == RELPERSISTENCE_TEMP && \
!(relation)->rd_islocaltemp)
/* routines in utils/cache/relcache.c */
extern void RelationIncrementReferenceCount(Relation rel);
extern void RelationDecrementReferenceCount(Relation rel);
#endif /* REL_H */