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/* -------------------------------------------------------------------------
*
* pg_subscription_rel.h
* Local info about tables that come from the publisher of a
* subscription (pg_subscription_rel).
*
* Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* -------------------------------------------------------------------------
*/
#ifndef PG_SUBSCRIPTION_REL_H
#define PG_SUBSCRIPTION_REL_H
#include "access/xlogdefs.h"
#include "catalog/genbki.h"
#include "nodes/pg_list.h"
/* ----------------
* pg_subscription_rel definition. cpp turns this into
* typedef struct FormData_pg_subscription_rel
* ----------------
*/
#define SubscriptionRelRelationId 6102
/* Workaround for genbki not knowing about XLogRecPtr */
#define pg_lsn XLogRecPtr
CATALOG(pg_subscription_rel,6102) BKI_WITHOUT_OIDS
{
Oid srsubid; /* Oid of subscription */
Oid srrelid; /* Oid of relation */
char srsubstate; /* state of the relation in subscription */
pg_lsn srsublsn; /* remote lsn of the state change
* used for synchronization coordination */
} FormData_pg_subscription_rel;
typedef FormData_pg_subscription_rel *Form_pg_subscription_rel;
/* ----------------
* compiler constants for pg_subscription_rel
* ----------------
*/
#define Natts_pg_subscription_rel 4
#define Anum_pg_subscription_rel_srsubid 1
#define Anum_pg_subscription_rel_srrelid 2
#define Anum_pg_subscription_rel_srsubstate 3
#define Anum_pg_subscription_rel_srsublsn 4
/* ----------------
* substate constants
* ----------------
*/
#define SUBREL_STATE_INIT 'i' /* initializing (sublsn NULL) */
#define SUBREL_STATE_DATASYNC 'd' /* data is being synchronized (sublsn NULL) */
#define SUBREL_STATE_SYNCDONE 's' /* synchronization finished infront of apply (sublsn set) */
#define SUBREL_STATE_READY 'r' /* ready (sublsn set) */
/* These are never stored in the catalog, we only use them for IPC. */
#define SUBREL_STATE_UNKNOWN '\0' /* unknown state */
#define SUBREL_STATE_SYNCWAIT 'w' /* waiting for sync */
#define SUBREL_STATE_CATCHUP 'c' /* catching up with apply */
typedef struct SubscriptionRelState
{
Oid relid;
XLogRecPtr lsn;
char state;
} SubscriptionRelState;
extern Oid SetSubscriptionRelState(Oid subid, Oid relid, char state,
XLogRecPtr sublsn);
extern char GetSubscriptionRelState(Oid subid, Oid relid,
XLogRecPtr *sublsn, bool missing_ok);
extern void RemoveSubscriptionRel(Oid subid, Oid relid);
extern List *GetSubscriptionRelations(Oid subid);
extern List *GetSubscriptionNotReadyRelations(Oid subid);
#endif /* PG_SUBSCRIPTION_REL_H */
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