From 052f1a33627961bbbe5b868b41ba9604b271ae31 Mon Sep 17 00:00:00 2001 From: Yugo Nagata Date: Fri, 20 Dec 2019 10:07:23 +0900 Subject: [PATCH v35 02/11] IMMV relisivm column in pg_class system catalog If this boolean column is true, a relations is Incrementally Maintainable Materialized View (IMMV) that supports Incremental View Maintenance (IVM). This is set when IMMV is created. Also, isimmv columns, mapped from relisivm, is added to pg_matviews. --- src/backend/catalog/heap.c | 1 + src/backend/catalog/index.c | 1 + src/backend/catalog/system_views.sql | 1 + src/backend/utils/cache/lsyscache.c | 24 ++++++++++++++++++++++++ src/backend/utils/cache/relcache.c | 2 ++ src/include/catalog/pg_class.h | 3 +++ src/include/utils/lsyscache.h | 1 + src/include/utils/rel.h | 6 ++++++ src/test/regress/expected/rules.out | 1 + 9 files changed, 40 insertions(+) diff --git a/src/backend/catalog/heap.c b/src/backend/catalog/heap.c index a6ed9849e77..06ec8a68ed8 100644 --- a/src/backend/catalog/heap.c +++ b/src/backend/catalog/heap.c @@ -953,6 +953,7 @@ InsertPgClassTuple(Relation pg_class_desc, values[Anum_pg_class_relrewrite - 1] = ObjectIdGetDatum(rd_rel->relrewrite); values[Anum_pg_class_relfrozenxid - 1] = TransactionIdGetDatum(rd_rel->relfrozenxid); values[Anum_pg_class_relminmxid - 1] = MultiXactIdGetDatum(rd_rel->relminmxid); + values[Anum_pg_class_relisivm - 1] = BoolGetDatum(rd_rel->relisivm); if (relacl != (Datum) 0) values[Anum_pg_class_relacl - 1] = relacl; else diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c index 43de42ce39e..afcb5811ae1 100644 --- a/src/backend/catalog/index.c +++ b/src/backend/catalog/index.c @@ -1007,6 +1007,7 @@ index_create(Relation heapRelation, indexRelation->rd_rel->relowner = heapRelation->rd_rel->relowner; indexRelation->rd_rel->relam = accessMethodId; indexRelation->rd_rel->relispartition = OidIsValid(parentIndexRelid); + indexRelation->rd_rel->relisivm = false; /* * store index's pg_class entry diff --git a/src/backend/catalog/system_views.sql b/src/backend/catalog/system_views.sql index 1ea8f1faa9e..752e02e3d82 100644 --- a/src/backend/catalog/system_views.sql +++ b/src/backend/catalog/system_views.sql @@ -146,6 +146,7 @@ CREATE VIEW pg_matviews AS T.spcname AS tablespace, C.relhasindex AS hasindexes, C.relispopulated AS ispopulated, + C.relisivm AS isimmv, pg_get_viewdef(C.oid) AS definition FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace) LEFT JOIN pg_tablespace T ON (T.oid = C.reltablespace) diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c index b924a2d900b..0db6160bb4b 100644 --- a/src/backend/utils/cache/lsyscache.c +++ b/src/backend/utils/cache/lsyscache.c @@ -2192,6 +2192,30 @@ get_rel_relispartition(Oid relid) return false; } +/* + * get_rel_relisivm + * + * Returns the relisivm flag associated with a given relation. + */ +bool +get_rel_relisivm(Oid relid) +{ + HeapTuple tp; + + tp = SearchSysCache1(RELOID, ObjectIdGetDatum(relid)); + if (HeapTupleIsValid(tp)) + { + Form_pg_class reltup = (Form_pg_class) GETSTRUCT(tp); + bool result; + + result = reltup->relisivm; + ReleaseSysCache(tp); + return result; + } + else + return false; +} + /* * get_rel_tablespace * diff --git a/src/backend/utils/cache/relcache.c b/src/backend/utils/cache/relcache.c index 6b634c9fff1..f22b4de9bf1 100644 --- a/src/backend/utils/cache/relcache.c +++ b/src/backend/utils/cache/relcache.c @@ -1947,6 +1947,8 @@ formrdesc(const char *relationName, Oid relationReltype, /* ... and they're always populated, too */ relation->rd_rel->relispopulated = true; + /* ... and they're always no ivm, too */ + relation->rd_rel->relisivm = false; relation->rd_rel->relreplident = REPLICA_IDENTITY_NOTHING; relation->rd_rel->relpages = 0; diff --git a/src/include/catalog/pg_class.h b/src/include/catalog/pg_class.h index 89ab34c8349..8c2bac8b111 100644 --- a/src/include/catalog/pg_class.h +++ b/src/include/catalog/pg_class.h @@ -122,6 +122,9 @@ CATALOG(pg_class,1259,RelationRelationId) BKI_BOOTSTRAP BKI_ROWTYPE_OID(83,Relat /* is relation a partition? */ bool relispartition BKI_DEFAULT(f); + /* is relation a matview with ivm? */ + bool relisivm BKI_DEFAULT(f); + /* link to original rel during table rewrite; otherwise 0 */ Oid relrewrite BKI_DEFAULT(0) BKI_LOOKUP_OPT(pg_class); diff --git a/src/include/utils/lsyscache.h b/src/include/utils/lsyscache.h index 5655aca4c14..fb05cac6894 100644 --- a/src/include/utils/lsyscache.h +++ b/src/include/utils/lsyscache.h @@ -144,6 +144,7 @@ extern Oid get_rel_namespace(Oid relid); extern Oid get_rel_type_id(Oid relid); extern char get_rel_relkind(Oid relid); extern bool get_rel_relispartition(Oid relid); +extern bool get_rel_relisivm(Oid relid); extern Oid get_rel_tablespace(Oid relid); extern char get_rel_persistence(Oid relid); extern Oid get_rel_relam(Oid relid); diff --git a/src/include/utils/rel.h b/src/include/utils/rel.h index 236830f6b93..f9cdf5e3eb2 100644 --- a/src/include/utils/rel.h +++ b/src/include/utils/rel.h @@ -685,6 +685,12 @@ RelationCloseSmgr(Relation relation) */ #define RelationIsPopulated(relation) ((relation)->rd_rel->relispopulated) +/* + * RelationIsIVM + * True if relation is an incrementally maintainable materialized view. + */ +#define RelationIsIVM(relation) ((relation)->rd_rel->relisivm) + /* * RelationIsAccessibleInLogicalDecoding * True if we need to log enough information to have access via diff --git a/src/test/regress/expected/rules.out b/src/test/regress/expected/rules.out index 78a37d9fc8f..73a812d9586 100644 --- a/src/test/regress/expected/rules.out +++ b/src/test/regress/expected/rules.out @@ -1415,6 +1415,7 @@ pg_matviews| SELECT n.nspname AS schemaname, t.spcname AS tablespace, c.relhasindex AS hasindexes, c.relispopulated AS ispopulated, + c.relisivm AS isimmv, pg_get_viewdef(c.oid) AS definition FROM ((pg_class c LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) -- 2.40.0