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This extends cluster_rel() in such a way that more options can be added in the future, which will reduce the amount of chunk code for an upcoming SKIP_LOCKED aimed for VACUUM. As VACUUM FULL is a different flavor of CLUSTER, we want to make that extensible to ease integration. This only reworks the API and its callers, without providing anything user-facing. Two options are present now: verbose mode and relation recheck when doing the cluster command work across multiple transactions. This could be used as well as a base to extend the grammar of CLUSTER later on. Author: Michael Paquier Reviewed-by: Nathan Bossart Discussion: https://postgr.es/m/20180723031058.GE2854@paquier.xyz
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/*-------------------------------------------------------------------------
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*
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* cluster.h
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* header file for postgres cluster command stuff
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*
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* Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994-5, Regents of the University of California
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*
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* src/include/commands/cluster.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef CLUSTER_H
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#define CLUSTER_H
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#include "nodes/parsenodes.h"
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#include "storage/lock.h"
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#include "utils/relcache.h"
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extern void cluster(ClusterStmt *stmt, bool isTopLevel);
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extern void cluster_rel(Oid tableOid, Oid indexOid, int options);
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extern void check_index_is_clusterable(Relation OldHeap, Oid indexOid,
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bool recheck, LOCKMODE lockmode);
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extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
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extern Oid make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, char relpersistence,
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LOCKMODE lockmode);
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extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
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bool is_system_catalog,
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bool swap_toast_by_content,
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bool check_constraints,
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bool is_internal,
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TransactionId frozenXid,
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MultiXactId minMulti,
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char newrelpersistence);
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#endif /* CLUSTER_H */
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