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of shared or nailed system catalogs. This has two key benefits: * The new CLUSTER-based VACUUM FULL can be applied safely to all catalogs. * We no longer have to use an unsafe reindex-in-place approach for reindexing shared catalogs. CLUSTER on nailed catalogs now works too, although I left it disabled on shared catalogs because the resulting pg_index.indisclustered update would only be visible in one database. Since reindexing shared system catalogs is now fully transactional and crash-safe, the former special cases in REINDEX behavior have been removed; shared catalogs are treated the same as non-shared. This commit does not do anything about the recently-discussed problem of deadlocks between VACUUM FULL/CLUSTER on a system catalog and other concurrent queries; will address that in a separate patch. As a stopgap, parallel_schedule has been tweaked to run vacuum.sql by itself, to avoid such failures during the regression tests.
38 lines
830 B
C
38 lines
830 B
C
/*
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* rmgr.h
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*
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* Resource managers definition
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*
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* $PostgreSQL: pgsql/src/include/access/rmgr.h,v 1.21 2010/02/07 20:48:11 tgl Exp $
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*/
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#ifndef RMGR_H
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#define RMGR_H
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typedef uint8 RmgrId;
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/*
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* Built-in resource managers
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*
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* Note: RM_MAX_ID could be as much as 255 without breaking the XLOG file
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* format, but we keep it small to minimize the size of RmgrTable[].
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*/
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#define RM_XLOG_ID 0
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#define RM_XACT_ID 1
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#define RM_SMGR_ID 2
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#define RM_CLOG_ID 3
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#define RM_DBASE_ID 4
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#define RM_TBLSPC_ID 5
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#define RM_MULTIXACT_ID 6
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#define RM_RELMAP_ID 7
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#define RM_STANDBY_ID 8
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#define RM_HEAP2_ID 9
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#define RM_HEAP_ID 10
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#define RM_BTREE_ID 11
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#define RM_HASH_ID 12
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#define RM_GIN_ID 13
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#define RM_GIST_ID 14
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#define RM_SEQ_ID 15
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#define RM_MAX_ID RM_SEQ_ID
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#endif /* RMGR_H */
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