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1fdbca159e
The replication origin code was using inconsistent naming conventions. Functions were typically prefixed with 'replorigin', while typedefs and constants used "RepOrigin". This commit unifies the naming convention by renaming RepOriginId to ReplOriginId. Reviewed-by: Chao Li <li.evan.chao@gmail.com> Discussion: https://postgr.es/m/CAD21AoBDgm3hDqUZ+nqu=ViHmkCnJBuJyaxG_yvv27BAi2zBmQ@mail.gmail.com
92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
/*-------------------------------------------------------------------------
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* conflict.h
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* Exports for conflicts logging.
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*
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* Copyright (c) 2024-2026, PostgreSQL Global Development Group
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef CONFLICT_H
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#define CONFLICT_H
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#include "access/xlogdefs.h"
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#include "nodes/pg_list.h"
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#include "utils/timestamp.h"
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/* Avoid including execnodes.h here */
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typedef struct EState EState;
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typedef struct ResultRelInfo ResultRelInfo;
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typedef struct TupleTableSlot TupleTableSlot;
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/*
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* Conflict types that could occur while applying remote changes.
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*
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* This enum is used in statistics collection (see
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* PgStat_StatSubEntry::conflict_count and
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* PgStat_BackendSubEntry::conflict_count) as well, therefore, when adding new
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* values or reordering existing ones, ensure to review and potentially adjust
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* the corresponding statistics collection codes.
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*/
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typedef enum
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{
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/* The row to be inserted violates unique constraint */
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CT_INSERT_EXISTS,
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/* The row to be updated was modified by a different origin */
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CT_UPDATE_ORIGIN_DIFFERS,
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/* The updated row value violates unique constraint */
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CT_UPDATE_EXISTS,
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/* The row to be updated was concurrently deleted by a different origin */
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CT_UPDATE_DELETED,
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/* The row to be updated is missing */
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CT_UPDATE_MISSING,
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/* The row to be deleted was modified by a different origin */
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CT_DELETE_ORIGIN_DIFFERS,
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/* The row to be deleted is missing */
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CT_DELETE_MISSING,
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/* The row to be inserted/updated violates multiple unique constraint */
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CT_MULTIPLE_UNIQUE_CONFLICTS,
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/*
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* Other conflicts, such as exclusion constraint violations, involve more
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* complex rules than simple equality checks. These conflicts are left for
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* future improvements.
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*/
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} ConflictType;
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#define CONFLICT_NUM_TYPES (CT_MULTIPLE_UNIQUE_CONFLICTS + 1)
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/*
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* Information for the local row that caused the conflict.
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*/
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typedef struct ConflictTupleInfo
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{
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TupleTableSlot *slot; /* tuple slot holding the conflicting local
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* tuple */
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Oid indexoid; /* OID of the index where the conflict
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* occurred */
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TransactionId xmin; /* transaction ID of the modification causing
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* the conflict */
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ReplOriginId origin; /* origin identifier of the modification */
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TimestampTz ts; /* timestamp of when the modification on the
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* conflicting local row occurred */
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} ConflictTupleInfo;
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extern bool GetTupleTransactionInfo(TupleTableSlot *localslot,
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TransactionId *xmin,
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ReplOriginId *localorigin,
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TimestampTz *localts);
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extern void ReportApplyConflict(EState *estate, ResultRelInfo *relinfo,
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int elevel, ConflictType type,
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TupleTableSlot *searchslot,
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TupleTableSlot *remoteslot,
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List *conflicttuples);
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extern void InitConflictIndexes(ResultRelInfo *relInfo);
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#endif
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