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/*-------------------------------------------------------------------------
*
* logicalrelation.h
* Relation definitions for logical replication relation mapping.
*
* Portions Copyright (c) 2016-2021, PostgreSQL Global Development Group
*
* src/include/replication/logicalrelation.h
*
*-------------------------------------------------------------------------
*/
#ifndef LOGICALRELATION_H
#define LOGICALRELATION_H
#include "access/attmap.h"
#include "replication/logicalproto.h"
typedef struct LogicalRepRelMapEntry
{
LogicalRepRelation remoterel; /* key is remoterel.remoteid */
/*
* Validity flag -- when false, revalidate all derived info at next
* logicalrep_rel_open. (While the localrel is open, we assume our lock
* on that rel ensures the info remains good.)
*/
bool localrelvalid;
/* Mapping to local relation. */
Oid localreloid; /* local relation id */
Relation localrel; /* relcache entry (NULL when closed) */
AttrMap *attrmap; /* map of local attributes to remote ones */
bool updatable; /* Can apply updates/deletes? */
/* Sync state. */
char state;
XLogRecPtr statelsn;
} LogicalRepRelMapEntry;
extern void logicalrep_relmap_update(LogicalRepRelation *remoterel);
extern void logicalrep_partmap_reset_relmap(LogicalRepRelation *remoterel);
extern LogicalRepRelMapEntry *logicalrep_rel_open(LogicalRepRelId remoteid,
LOCKMODE lockmode);
extern LogicalRepRelMapEntry *logicalrep_partition_open(LogicalRepRelMapEntry *root,
Relation partrel, AttrMap *map);
extern void logicalrep_rel_close(LogicalRepRelMapEntry *rel,
LOCKMODE lockmode);
#endif /* LOGICALRELATION_H */
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