1 /* ------------------------------------------------------------------------- 2 * 3 * pg_subscription.h 4 * definition of the "subscription" system catalog (pg_subscription) 5 * 6 * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group 7 * Portions Copyright (c) 1994, Regents of the University of California 8 * 9 * src/include/catalog/pg_subscription.h 10 * 11 * NOTES 12 * The Catalog.pm module reads this file and derives schema 13 * information. 14 * 15 * ------------------------------------------------------------------------- 16 */ 17 #ifndef PG_SUBSCRIPTION_H 18 #define PG_SUBSCRIPTION_H 19 20 #include "catalog/genbki.h" 21 #include "catalog/pg_subscription_d.h" 22 23 #include "nodes/pg_list.h" 24 25 /* ---------------- 26 * pg_subscription definition. cpp turns this into 27 * typedef struct FormData_pg_subscription 28 * ---------------- 29 */ 30 31 /* 32 * Technically, the subscriptions live inside the database, so a shared catalog 33 * seems weird, but the replication launcher process needs to access all of 34 * them to be able to start the workers, so we have to put them in a shared, 35 * nailed catalog. 36 * 37 * NOTE: When adding a column, also update system_views.sql. 38 */ 39 CATALOG(pg_subscription,6100,SubscriptionRelationId) BKI_SHARED_RELATION BKI_ROWTYPE_OID(6101,SubscriptionRelation_Rowtype_Id) BKI_SCHEMA_MACRO 40 { 41 Oid oid; /* oid */ 42 43 Oid subdbid; /* Database the subscription is in. */ 44 NameData subname; /* Name of the subscription */ 45 46 Oid subowner; /* Owner of the subscription */ 47 48 bool subenabled; /* True if the subscription is enabled (the 49 * worker should be running) */ 50 51 #ifdef CATALOG_VARLEN /* variable-length fields start here */ 52 /* Connection string to the publisher */ 53 text subconninfo BKI_FORCE_NOT_NULL; 54 55 /* Slot name on publisher */ 56 NameData subslotname BKI_FORCE_NULL; 57 58 /* Synchronous commit setting for worker */ 59 text subsynccommit BKI_FORCE_NOT_NULL; 60 61 /* List of publications subscribed to */ 62 text subpublications[1] BKI_FORCE_NOT_NULL; 63 #endif 64 } FormData_pg_subscription; 65 66 typedef FormData_pg_subscription *Form_pg_subscription; 67 68 typedef struct Subscription 69 { 70 Oid oid; /* Oid of the subscription */ 71 Oid dbid; /* Oid of the database which subscription is 72 * in */ 73 char *name; /* Name of the subscription */ 74 Oid owner; /* Oid of the subscription owner */ 75 bool enabled; /* Indicates if the subscription is enabled */ 76 char *conninfo; /* Connection string to the publisher */ 77 char *slotname; /* Name of the replication slot */ 78 char *synccommit; /* Synchronous commit setting for worker */ 79 List *publications; /* List of publication names to subscribe to */ 80 } Subscription; 81 82 extern Subscription *GetSubscription(Oid subid, bool missing_ok); 83 extern void FreeSubscription(Subscription *sub); 84 extern Oid get_subscription_oid(const char *subname, bool missing_ok); 85 extern char *get_subscription_name(Oid subid, bool missing_ok); 86 87 extern int CountDBSubscriptions(Oid dbid); 88 89 #endif /* PG_SUBSCRIPTION_H */ 90