mirror of https://github.com/citusdata/citus.git
53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/*
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* relation_access_tracking.h
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*
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* Function declartions for transaction access tracking.
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*
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* Copyright (c) 2018, Citus Data, Inc.
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*/
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#ifndef RELATION_ACCESS_TRACKING_H_
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#define RELATION_ACCESS_TRACKING_H_
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#include "distributed/master_metadata_utility.h"
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#include "distributed/multi_physical_planner.h" /* access Task struct */
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#include "distributed/placement_connection.h"
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/* Config variables managed via guc.c */
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extern bool EnforceForeignKeyRestrictions;
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/* forward declare, to avoid dependency on ShardPlacement definition */
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struct ShardPlacement;
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typedef enum RelationAccessMode
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{
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RELATION_NOT_ACCESSED,
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/* only valid for reference tables */
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RELATION_REFERENCE_ACCESSED,
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/*
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* Only valid for distributed tables and set
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* if table is accessed in parallel mode
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*/
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RELATION_PARALLEL_ACCESSED
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} RelationAccessMode;
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extern void AllocateRelationAccessHash(void);
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extern void ResetRelationAccessHash(void);
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extern void RecordRelationAccessIfReferenceTable(Oid relationId,
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ShardPlacementAccessType accessType);
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extern void RecordParallelRelationAccessForTaskList(List *taskList);
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extern void RecordParallelSelectAccess(Oid relationId);
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extern void RecordParallelModifyAccess(Oid relationId);
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extern void RecordParallelDDLAccess(Oid relationId);
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extern RelationAccessMode GetRelationDDLAccessMode(Oid relationId);
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extern RelationAccessMode GetRelationDMLAccessMode(Oid relationId);
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extern RelationAccessMode GetRelationSelectAccessMode(Oid relationId);
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extern bool ShouldRecordRelationAccess(void);
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extern bool ParallelQueryExecutedInTransaction(void);
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#endif /* RELATION_ACCESS_TRACKING_H_ */
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