From fd7a25af11e2cad4f48ffc4e50f18644e657ed53 Mon Sep 17 00:00:00 2001 From: Masahiko Sawada Date: Thu, 2 Apr 2026 11:34:50 -0700 Subject: [PATCH] Add target_relid parameter to pg_get_publication_tables(). When a tablesync worker checks whether a specific table is published, it previously issued a query to the publisher calling pg_get_publication_tables() and filtering the result by relid via a WHERE clause. Because the function itself was fully evaluated before the filter was applied, this forced the publisher to enumerate all tables in the publication. For publications covering a large number of tables, this resulted in expensive catalog scans and unnecessary CPU overhead on the publisher. This commit adds a new overloaded form of pg_get_publication_tables() that accepts an array of publication names and a target table OID. Instead of enumerating all published tables, it evaluates membership for the specified relation via syscache lookups, using the new is_table_publishable_in_publication() helper. This helper correctly accounts for publish_via_partition_root, ALL TABLES with EXCEPT clauses, schema publications, and partition inheritance, while avoiding the overhead of building the complete published table list. The existing VARIADIC array form of pg_get_publication_tables() is preserved for backward compatibility. Tablesync workers use the new two-argument form when connected to a publisher running PostgreSQL 19 or later. Bump catalog version. Reported-by: Marcos Pegoraro Reviewed-by: Zhijie Hou Reviewed-by: Matheus Alcantara Reviewed-by: Amit Kapila Reviewed-by: Peter Smith Reviewed-by: Hayato Kuroda Reviewed-by: Chao Li Reviewed-by: Haoyan Wang Discussion: https://postgr.es/m/CAB-JLwbBFNuASyEnZWP0Tck9uNkthBZqi6WoXNevUT6+mV8XmA@mail.gmail.com --- src/backend/catalog/pg_publication.c | 239 +++++++++++++++++--- src/backend/replication/logical/tablesync.c | 70 ++++-- src/include/catalog/catversion.h | 2 +- src/include/catalog/pg_proc.dat | 13 +- src/test/regress/expected/publication.out | 225 ++++++++++++++++++ src/test/regress/sql/publication.sql | 107 +++++++++ 6 files changed, 605 insertions(+), 51 deletions(-) diff --git a/src/backend/catalog/pg_publication.c b/src/backend/catalog/pg_publication.c index 82a22061d5b..a43d385c605 100644 --- a/src/backend/catalog/pg_publication.c +++ b/src/backend/catalog/pg_publication.c @@ -163,6 +163,37 @@ is_publishable_relation(Relation rel) return is_publishable_class(RelationGetRelid(rel), rel->rd_rel); } +/* + * Similar to is_publishable_class() but checks whether the given OID + * is a publishable "table" or not. + */ +static bool +is_publishable_table(Oid tableoid) +{ + HeapTuple tuple; + Form_pg_class relform; + + tuple = SearchSysCache1(RELOID, ObjectIdGetDatum(tableoid)); + if (!HeapTupleIsValid(tuple)) + return false; + + relform = (Form_pg_class) GETSTRUCT(tuple); + + /* + * is_publishable_class() includes sequences, so we need to explicitly + * check the relkind to filter them out here. + */ + if (relform->relkind != RELKIND_SEQUENCE && + is_publishable_class(tableoid, relform)) + { + ReleaseSysCache(tuple); + return true; + } + + ReleaseSysCache(tuple); + return false; +} + /* * SQL-callable variant of the above * @@ -1264,12 +1295,116 @@ GetPublicationByName(const char *pubname, bool missing_ok) } /* - * Get information of the tables in the given publication array. + * A helper function for pg_get_publication_tables() to check whether the + * table with the given relid is published in the specified publication. * - * Returns pubid, relid, column list, row filter for each table. + * This function evaluates the effective published OID based on the + * publish_via_partition_root setting, rather than just checking catalog entries + * (e.g., pg_publication_rel). For instance, when publish_via_partition_root is + * false, it returns false for a parent partitioned table and returns true + * for its leaf partitions, even if the parent is the one explicitly added + * to the publication. + * + * For performance reasons, this function avoids the overhead of constructing + * the complete list of published tables during the evaluation. It can execute + * quickly even when the publication contains a large number of relations. + * + * Note: this leaks memory for the ancestors list into the current memory + * context. */ -Datum -pg_get_publication_tables(PG_FUNCTION_ARGS) +static bool +is_table_publishable_in_publication(Oid relid, Publication *pub) +{ + bool relispartition; + List *ancestors = NIL; + + /* + * For non-pubviaroot publications, a partitioned table is never the + * effective published OID; only its leaf partitions can be. + */ + if (!pub->pubviaroot && get_rel_relkind(relid) == RELKIND_PARTITIONED_TABLE) + return false; + + relispartition = get_rel_relispartition(relid); + + if (relispartition) + ancestors = get_partition_ancestors(relid); + + if (pub->alltables) + { + /* + * ALL TABLES with pubviaroot includes only regular tables or top-most + * partitioned tables -- never child partitions. + */ + if (pub->pubviaroot && relispartition) + return false; + + /* + * For ALL TABLES publications, the table is published unless it + * appears in the EXCEPT clause. Only the top-most can appear in the + * EXCEPT clause, so exclusion must be evaluated at the top-most + * ancestor if it has. These publications store only EXCEPT'ed tables + * in pg_publication_rel, so checking existence is sufficient. + * + * Note that this existence check below would incorrectly return true + * (published) for partitions when pubviaroot is enabled; however, + * that case is already caught and returned false by the above check. + */ + return !SearchSysCacheExists2(PUBLICATIONRELMAP, + ObjectIdGetDatum(ancestors + ? llast_oid(ancestors) : relid), + ObjectIdGetDatum(pub->oid)); + } + + /* + * Non-ALL-TABLE publication cases. + * + * A table is published if it (or a containing schema) was explicitly + * added, or if it is a partition whose ancestor was added. + */ + + /* + * If an ancestor is published, the partition's status depends on + * publish_via_partition_root value. + * + * If it's true, the ancestor's relation OID is the effective published + * OID, so the partition itself should be excluded (return false). + * + * If it's false, the partition is covered by its ancestor's presence in + * the publication, it should be included (return true). + */ + if (relispartition && + OidIsValid(GetTopMostAncestorInPublication(pub->oid, ancestors, NULL))) + return !pub->pubviaroot; + + /* + * Check whether the table is explicitly published via pg_publication_rel + * or pg_publication_namespace. + */ + return (SearchSysCacheExists2(PUBLICATIONRELMAP, + ObjectIdGetDatum(relid), + ObjectIdGetDatum(pub->oid)) || + SearchSysCacheExists2(PUBLICATIONNAMESPACEMAP, + ObjectIdGetDatum(get_rel_namespace(relid)), + ObjectIdGetDatum(pub->oid))); +} + +/* + * Helper function to get information of the tables in the given + * publication(s). + * + * If filter_by_relid is true, only the row(s) for target_relid is returned; + * if target_relid does not exist or is not part of the publications, zero + * rows are returned. If filter_by_relid is false, rows for all tables + * within the specified publications are returned and target_relid is + * ignored. + * + * Returns pubid, relid, column list, and row filter for each table. + */ +static Datum +pg_get_publication_tables(FunctionCallInfo fcinfo, ArrayType *pubnames, + Oid target_relid, bool filter_by_relid, + bool pub_missing_ok) { #define NUM_PUBLICATION_TABLES_ELEM 4 FuncCallContext *funcctx; @@ -1280,7 +1415,6 @@ pg_get_publication_tables(PG_FUNCTION_ARGS) { TupleDesc tupdesc; MemoryContext oldcontext; - ArrayType *arr; Datum *elems; int nelems, i; @@ -1289,6 +1423,14 @@ pg_get_publication_tables(PG_FUNCTION_ARGS) /* create a function context for cross-call persistence */ funcctx = SRF_FIRSTCALL_INIT(); + /* + * Preliminary check if the specified table can be published in the + * first place. If not, we can return early without checking the given + * publications and the table. + */ + if (filter_by_relid && !is_publishable_table(target_relid)) + SRF_RETURN_DONE(funcctx); + /* switch to memory context appropriate for multiple function calls */ oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx); @@ -1296,8 +1438,7 @@ pg_get_publication_tables(PG_FUNCTION_ARGS) * Deconstruct the parameter into elements where each element is a * publication name. */ - arr = PG_GETARG_ARRAYTYPE_P(0); - deconstruct_array_builtin(arr, TEXTOID, &elems, NULL, &nelems); + deconstruct_array_builtin(pubnames, TEXTOID, &elems, NULL, &nelems); /* Get Oids of tables from each publication. */ for (i = 0; i < nelems; i++) @@ -1306,32 +1447,48 @@ pg_get_publication_tables(PG_FUNCTION_ARGS) List *pub_elem_tables = NIL; ListCell *lc; - pub_elem = GetPublicationByName(TextDatumGetCString(elems[i]), false); + pub_elem = GetPublicationByName(TextDatumGetCString(elems[i]), + pub_missing_ok); - /* - * Publications support partitioned tables. If - * publish_via_partition_root is false, all changes are replicated - * using leaf partition identity and schema, so we only need - * those. Otherwise, get the partitioned table itself. - */ - if (pub_elem->alltables) - pub_elem_tables = GetAllPublicationRelations(pub_elem->oid, - RELKIND_RELATION, - pub_elem->pubviaroot); + if (pub_elem == NULL) + continue; + + if (filter_by_relid) + { + /* Check if the given table is published for the publication */ + if (is_table_publishable_in_publication(target_relid, pub_elem)) + { + pub_elem_tables = list_make1_oid(target_relid); + } + } else { - List *relids, - *schemarelids; + /* + * Publications support partitioned tables. If + * publish_via_partition_root is false, all changes are + * replicated using leaf partition identity and schema, so we + * only need those. Otherwise, get the partitioned table + * itself. + */ + if (pub_elem->alltables) + pub_elem_tables = GetAllPublicationRelations(pub_elem->oid, + RELKIND_RELATION, + pub_elem->pubviaroot); + else + { + List *relids, + *schemarelids; - relids = GetIncludedPublicationRelations(pub_elem->oid, - pub_elem->pubviaroot ? - PUBLICATION_PART_ROOT : - PUBLICATION_PART_LEAF); - schemarelids = GetAllSchemaPublicationRelations(pub_elem->oid, - pub_elem->pubviaroot ? - PUBLICATION_PART_ROOT : - PUBLICATION_PART_LEAF); - pub_elem_tables = list_concat_unique_oid(relids, schemarelids); + relids = GetIncludedPublicationRelations(pub_elem->oid, + pub_elem->pubviaroot ? + PUBLICATION_PART_ROOT : + PUBLICATION_PART_LEAF); + schemarelids = GetAllSchemaPublicationRelations(pub_elem->oid, + pub_elem->pubviaroot ? + PUBLICATION_PART_ROOT : + PUBLICATION_PART_LEAF); + pub_elem_tables = list_concat_unique_oid(relids, schemarelids); + } } /* @@ -1491,6 +1648,30 @@ pg_get_publication_tables(PG_FUNCTION_ARGS) SRF_RETURN_DONE(funcctx); } +Datum +pg_get_publication_tables_a(PG_FUNCTION_ARGS) +{ + /* + * Get information for all tables in the given publications. + * filter_by_relid is false so all tables are returned; pub_missing_ok is + * false for backward compatibility. + */ + return pg_get_publication_tables(fcinfo, PG_GETARG_ARRAYTYPE_P(0), + InvalidOid, false, false); +} + +Datum +pg_get_publication_tables_b(PG_FUNCTION_ARGS) +{ + /* + * Get information for the specified table in the given publications. The + * SQL-level function is declared STRICT, so target_relid is guaranteed to + * be non-NULL here. + */ + return pg_get_publication_tables(fcinfo, PG_GETARG_ARRAYTYPE_P(0), + PG_GETARG_OID(1), true, true); +} + /* * Returns Oids of sequences in a publication. */ diff --git a/src/backend/replication/logical/tablesync.c b/src/backend/replication/logical/tablesync.c index f49a4852ecb..eb718114297 100644 --- a/src/backend/replication/logical/tablesync.c +++ b/src/backend/replication/logical/tablesync.c @@ -798,17 +798,35 @@ fetch_remote_table_info(char *nspname, char *relname, LogicalRepRelation *lrel, * publications). */ resetStringInfo(&cmd); - appendStringInfo(&cmd, - "SELECT DISTINCT" - " (CASE WHEN (array_length(gpt.attrs, 1) = c.relnatts)" - " THEN NULL ELSE gpt.attrs END)" - " FROM pg_publication p," - " LATERAL pg_get_publication_tables(p.pubname) gpt," - " pg_class c" - " WHERE gpt.relid = %u AND c.oid = gpt.relid" - " AND p.pubname IN ( %s )", - lrel->remoteid, - pub_names->data); + + if (server_version >= 190000) + { + /* + * We can pass both publication names and relid to + * pg_get_publication_tables() since version 19. + */ + appendStringInfo(&cmd, + "SELECT DISTINCT" + " (CASE WHEN (array_length(gpt.attrs, 1) = c.relnatts)" + " THEN NULL ELSE gpt.attrs END)" + " FROM pg_get_publication_tables(ARRAY[%s], %u) gpt," + " pg_class c" + " WHERE c.oid = gpt.relid", + pub_names->data, + lrel->remoteid); + } + else + appendStringInfo(&cmd, + "SELECT DISTINCT" + " (CASE WHEN (array_length(gpt.attrs, 1) = c.relnatts)" + " THEN NULL ELSE gpt.attrs END)" + " FROM pg_publication p," + " LATERAL pg_get_publication_tables(p.pubname) gpt," + " pg_class c" + " WHERE gpt.relid = %u AND c.oid = gpt.relid" + " AND p.pubname IN ( %s )", + lrel->remoteid, + pub_names->data); pubres = walrcv_exec(LogRepWorkerWalRcvConn, cmd.data, lengthof(attrsRow), attrsRow); @@ -982,14 +1000,28 @@ fetch_remote_table_info(char *nspname, char *relname, LogicalRepRelation *lrel, /* Check for row filters. */ resetStringInfo(&cmd); - appendStringInfo(&cmd, - "SELECT DISTINCT pg_get_expr(gpt.qual, gpt.relid)" - " FROM pg_publication p," - " LATERAL pg_get_publication_tables(p.pubname) gpt" - " WHERE gpt.relid = %u" - " AND p.pubname IN ( %s )", - lrel->remoteid, - pub_names->data); + + if (server_version >= 190000) + { + /* + * We can pass both publication names and relid to + * pg_get_publication_tables() since version 19. + */ + appendStringInfo(&cmd, + "SELECT DISTINCT pg_get_expr(gpt.qual, gpt.relid)" + " FROM pg_get_publication_tables(ARRAY[%s], %u) gpt", + pub_names->data, + lrel->remoteid); + } + else + appendStringInfo(&cmd, + "SELECT DISTINCT pg_get_expr(gpt.qual, gpt.relid)" + " FROM pg_publication p," + " LATERAL pg_get_publication_tables(p.pubname) gpt" + " WHERE gpt.relid = %u" + " AND p.pubname IN ( %s )", + lrel->remoteid, + pub_names->data); res = walrcv_exec(LogRepWorkerWalRcvConn, cmd.data, 1, qualRow); diff --git a/src/include/catalog/catversion.h b/src/include/catalog/catversion.h index 81b2bf39b3f..b1c5afc15df 100644 --- a/src/include/catalog/catversion.h +++ b/src/include/catalog/catversion.h @@ -57,6 +57,6 @@ */ /* yyyymmddN */ -#define CATALOG_VERSION_NO 202603301 +#define CATALOG_VERSION_NO 202604021 #endif diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat index 3579cec5744..acf16254b21 100644 --- a/src/include/catalog/pg_proc.dat +++ b/src/include/catalog/pg_proc.dat @@ -12467,8 +12467,17 @@ prorettype => 'record', proargtypes => '_text', proallargtypes => '{_text,oid,oid,int2vector,pg_node_tree}', proargmodes => '{v,o,o,o,o}', - proargnames => '{pubname,pubid,relid,attrs,qual}', - prosrc => 'pg_get_publication_tables' }, + proargnames => '{pubnames,pubid,relid,attrs,qual}', + prosrc => 'pg_get_publication_tables_a' }, +{ oid => '8060', + descr => 'get information of the specified table that is part of the specified publications', + proname => 'pg_get_publication_tables', prorows => '10', + proretset => 't', provolatile => 's', + prorettype => 'record', proargtypes => '_text oid', + proallargtypes => '{_text,oid,oid,oid,int2vector,pg_node_tree}', + proargmodes => '{i,i,o,o,o,o}', + proargnames => '{pubnames,target_relid,pubid,relid,attrs,qual}', + prosrc => 'pg_get_publication_tables_b' }, { oid => '8052', descr => 'get OIDs of sequences in a publication', proname => 'pg_get_publication_sequences', prorows => '1000', proretset => 't', provolatile => 's', prorettype => 'oid', proargtypes => 'text', diff --git a/src/test/regress/expected/publication.out b/src/test/regress/expected/publication.out index d2aa9d45e4a..a9059a39138 100644 --- a/src/test/regress/expected/publication.out +++ b/src/test/regress/expected/publication.out @@ -2292,6 +2292,231 @@ DROP TABLE testpub_merge_pk; RESET SESSION AUTHORIZATION; DROP ROLE regress_publication_user, regress_publication_user2; DROP ROLE regress_publication_user_dummy; +-- Test pg_get_publication_tables(text[], oid) function +CREATE SCHEMA gpt_test_sch; +CREATE TABLE gpt_test_sch.tbl_sch (id int); +CREATE TABLE tbl_normal (id int); +CREATE TABLE tbl_parent (id1 int, id2 int, id3 int) PARTITION BY RANGE (id1); +CREATE TABLE tbl_part1 PARTITION OF tbl_parent FOR VALUES FROM (1) TO (10); +CREATE VIEW gpt_test_view AS SELECT * FROM tbl_normal; +SET client_min_messages = 'ERROR'; +CREATE PUBLICATION pub_all FOR ALL TABLES WITH (publish_via_partition_root = true); +CREATE PUBLICATION pub_all_no_viaroot FOR ALL TABLES WITH (publish_via_partition_root = false); +CREATE PUBLICATION pub_all_except FOR ALL TABLES EXCEPT (TABLE tbl_parent, gpt_test_sch.tbl_sch) WITH (publish_via_partition_root = true); +CREATE PUBLICATION pub_all_except_no_viaroot FOR ALL TABLES EXCEPT (TABLE tbl_parent, gpt_test_sch.tbl_sch) WITH (publish_via_partition_root = false); +CREATE PUBLICATION pub_schema FOR TABLES IN SCHEMA gpt_test_sch; +CREATE PUBLICATION pub_normal FOR TABLE tbl_normal WHERE (id < 10); +CREATE PUBLICATION pub_part_leaf FOR TABLE tbl_part1 WITH (publish_via_partition_root = false); +CREATE PUBLICATION pub_part_parent FOR TABLE tbl_parent (id1, id2) WHERE (id1 = 10) WITH (publish_via_partition_root = true); +CREATE PUBLICATION pub_part_parent_no_viaroot FOR TABLE tbl_parent WITH (publish_via_partition_root = false); +CREATE PUBLICATION pub_part_parent_child FOR TABLE tbl_parent, tbl_part1 WITH (publish_via_partition_root = true); +RESET client_min_messages; +CREATE FUNCTION test_gpt(pubnames text[], relname text) +RETURNS TABLE ( + pubname text, + relname name, + attrs text, + qual text +) +BEGIN ATOMIC + SELECT p.pubname, c.relname, gpt.attrs::text, pg_get_expr(gpt.qual, gpt.relid) + FROM pg_get_publication_tables(pubnames, relname::regclass::oid) gpt + JOIN pg_publication p ON p.oid = gpt.pubid + JOIN pg_class c ON c.oid = gpt.relid + ORDER BY p.pubname, c.relname; +END; +SELECT * FROM test_gpt(ARRAY['pub_normal'], 'tbl_normal'); + pubname | relname | attrs | qual +------------+------------+-------+----------- + pub_normal | tbl_normal | 1 | (id < 10) +(1 row) + +SELECT * FROM test_gpt(ARRAY['pub_normal'], 'gpt_test_sch.tbl_sch'); -- no result + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_schema'], 'gpt_test_sch.tbl_sch'); + pubname | relname | attrs | qual +------------+---------+-------+------ + pub_schema | tbl_sch | 1 | +(1 row) + +SELECT * FROM test_gpt(ARRAY['pub_schema'], 'tbl_normal'); -- no result + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_part_parent'], 'tbl_parent'); + pubname | relname | attrs | qual +-----------------+------------+-------+------------ + pub_part_parent | tbl_parent | 1 2 | (id1 = 10) +(1 row) + +SELECT * FROM test_gpt(ARRAY['pub_part_parent'], 'tbl_part1'); -- no result + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_part_parent_no_viaroot'], 'tbl_part1'); + pubname | relname | attrs | qual +----------------------------+-----------+-------+------ + pub_part_parent_no_viaroot | tbl_part1 | 1 2 3 | +(1 row) + +SELECT * FROM test_gpt(ARRAY['pub_part_parent_no_viaroot'], 'tbl_parent'); -- no result + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_part_leaf'], 'tbl_part1'); + pubname | relname | attrs | qual +---------------+-----------+-------+------ + pub_part_leaf | tbl_part1 | 1 2 3 | +(1 row) + +SELECT * FROM test_gpt(ARRAY['pub_part_leaf'], 'tbl_parent'); -- no result + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_all'], 'tbl_parent'); + pubname | relname | attrs | qual +---------+------------+-------+------ + pub_all | tbl_parent | 1 2 3 | +(1 row) + +SELECT * FROM test_gpt(ARRAY['pub_all'], 'tbl_part1'); -- no result + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_all_no_viaroot'], 'tbl_part1'); + pubname | relname | attrs | qual +--------------------+-----------+-------+------ + pub_all_no_viaroot | tbl_part1 | 1 2 3 | +(1 row) + +SELECT * FROM test_gpt(ARRAY['pub_all_no_viaroot'], 'tbl_parent'); -- no result + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_part_parent_child'], 'tbl_parent'); + pubname | relname | attrs | qual +-----------------------+------------+-------+------ + pub_part_parent_child | tbl_parent | 1 2 3 | +(1 row) + +SELECT * FROM test_gpt(ARRAY['pub_part_parent_child'], 'tbl_part1'); -- no result + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +-- test for the EXCEPT clause +SELECT * FROM test_gpt(ARRAY['pub_all_except'], 'tbl_normal'); + pubname | relname | attrs | qual +----------------+------------+-------+------ + pub_all_except | tbl_normal | 1 | +(1 row) + +SELECT * FROM test_gpt(ARRAY['pub_all_except'], 'gpt_test_sch.tbl_sch'); -- no result (excluded) + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_all_except'], 'tbl_parent'); -- no result (excluded) + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_all_except'], 'tbl_part1'); -- no result + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_all_except_no_viaroot'], 'tbl_normal'); + pubname | relname | attrs | qual +---------------------------+------------+-------+------ + pub_all_except_no_viaroot | tbl_normal | 1 | +(1 row) + +SELECT * FROM test_gpt(ARRAY['pub_all_except_no_viaroot'], 'gpt_test_sch.tbl_sch'); -- no result (excluded) + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_all_except_no_viaroot'], 'tbl_parent'); -- no result (excluded) + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +SELECT * FROM test_gpt(ARRAY['pub_all_except_no_viaroot'], 'tbl_part1'); -- no result + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +-- two rows with different row filter +SELECT * FROM test_gpt(ARRAY['pub_all', 'pub_normal'], 'tbl_normal'); + pubname | relname | attrs | qual +------------+------------+-------+----------- + pub_all | tbl_normal | 1 | + pub_normal | tbl_normal | 1 | (id < 10) +(2 rows) + +-- one row with 'pub_part_parent' +SELECT * FROM test_gpt(ARRAY['pub_part_parent', 'pub_part_parent_no_viaroot'], 'tbl_parent'); + pubname | relname | attrs | qual +-----------------+------------+-------+------------ + pub_part_parent | tbl_parent | 1 2 | (id1 = 10) +(1 row) + +-- no result, tbl_parent is the effective published OID due to pubviaroot +SELECT * FROM test_gpt(ARRAY['pub_part_parent', 'pub_all'], 'tbl_part1'); + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +-- no result, non-existent publication +SELECT * FROM test_gpt(ARRAY['no_such_pub'], 'tbl_normal'); + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +-- no result, non-table object +SELECT * FROM test_gpt(ARRAY['pub_all'], 'gpt_test_view'); + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +-- no result, empty publication array +SELECT * FROM test_gpt(ARRAY[]::text[], 'tbl_normal'); + pubname | relname | attrs | qual +---------+---------+-------+------ +(0 rows) + +-- no result, OID 0 as target_relid +SELECT * FROM pg_get_publication_tables(ARRAY['pub_normal'], 0::oid); + pubid | relid | attrs | qual +-------+-------+-------+------ +(0 rows) + +-- Clean up +DROP FUNCTION test_gpt(text[], text); +DROP PUBLICATION pub_all; +DROP PUBLICATION pub_all_no_viaroot; +DROP PUBLICATION pub_all_except; +DROP PUBLICATION pub_all_except_no_viaroot; +DROP PUBLICATION pub_schema; +DROP PUBLICATION pub_normal; +DROP PUBLICATION pub_part_leaf; +DROP PUBLICATION pub_part_parent; +DROP PUBLICATION pub_part_parent_no_viaroot; +DROP PUBLICATION pub_part_parent_child; +DROP VIEW gpt_test_view; +DROP TABLE tbl_normal, tbl_parent, tbl_part1; +DROP SCHEMA gpt_test_sch CASCADE; +NOTICE: drop cascades to table gpt_test_sch.tbl_sch -- stage objects for pg_dump tests CREATE SCHEMA pubme CREATE TABLE t0 (c int, d int) CREATE TABLE t1 (c int); CREATE SCHEMA pubme2 CREATE TABLE t0 (c int, d int); diff --git a/src/test/regress/sql/publication.sql b/src/test/regress/sql/publication.sql index 6bafad27571..642e32fa098 100644 --- a/src/test/regress/sql/publication.sql +++ b/src/test/regress/sql/publication.sql @@ -1438,6 +1438,113 @@ RESET SESSION AUTHORIZATION; DROP ROLE regress_publication_user, regress_publication_user2; DROP ROLE regress_publication_user_dummy; +-- Test pg_get_publication_tables(text[], oid) function +CREATE SCHEMA gpt_test_sch; +CREATE TABLE gpt_test_sch.tbl_sch (id int); +CREATE TABLE tbl_normal (id int); +CREATE TABLE tbl_parent (id1 int, id2 int, id3 int) PARTITION BY RANGE (id1); +CREATE TABLE tbl_part1 PARTITION OF tbl_parent FOR VALUES FROM (1) TO (10); +CREATE VIEW gpt_test_view AS SELECT * FROM tbl_normal; + +SET client_min_messages = 'ERROR'; +CREATE PUBLICATION pub_all FOR ALL TABLES WITH (publish_via_partition_root = true); +CREATE PUBLICATION pub_all_no_viaroot FOR ALL TABLES WITH (publish_via_partition_root = false); +CREATE PUBLICATION pub_all_except FOR ALL TABLES EXCEPT (TABLE tbl_parent, gpt_test_sch.tbl_sch) WITH (publish_via_partition_root = true); +CREATE PUBLICATION pub_all_except_no_viaroot FOR ALL TABLES EXCEPT (TABLE tbl_parent, gpt_test_sch.tbl_sch) WITH (publish_via_partition_root = false); +CREATE PUBLICATION pub_schema FOR TABLES IN SCHEMA gpt_test_sch; +CREATE PUBLICATION pub_normal FOR TABLE tbl_normal WHERE (id < 10); +CREATE PUBLICATION pub_part_leaf FOR TABLE tbl_part1 WITH (publish_via_partition_root = false); +CREATE PUBLICATION pub_part_parent FOR TABLE tbl_parent (id1, id2) WHERE (id1 = 10) WITH (publish_via_partition_root = true); +CREATE PUBLICATION pub_part_parent_no_viaroot FOR TABLE tbl_parent WITH (publish_via_partition_root = false); +CREATE PUBLICATION pub_part_parent_child FOR TABLE tbl_parent, tbl_part1 WITH (publish_via_partition_root = true); +RESET client_min_messages; + +CREATE FUNCTION test_gpt(pubnames text[], relname text) +RETURNS TABLE ( + pubname text, + relname name, + attrs text, + qual text +) +BEGIN ATOMIC + SELECT p.pubname, c.relname, gpt.attrs::text, pg_get_expr(gpt.qual, gpt.relid) + FROM pg_get_publication_tables(pubnames, relname::regclass::oid) gpt + JOIN pg_publication p ON p.oid = gpt.pubid + JOIN pg_class c ON c.oid = gpt.relid + ORDER BY p.pubname, c.relname; +END; + +SELECT * FROM test_gpt(ARRAY['pub_normal'], 'tbl_normal'); +SELECT * FROM test_gpt(ARRAY['pub_normal'], 'gpt_test_sch.tbl_sch'); -- no result + +SELECT * FROM test_gpt(ARRAY['pub_schema'], 'gpt_test_sch.tbl_sch'); +SELECT * FROM test_gpt(ARRAY['pub_schema'], 'tbl_normal'); -- no result + +SELECT * FROM test_gpt(ARRAY['pub_part_parent'], 'tbl_parent'); +SELECT * FROM test_gpt(ARRAY['pub_part_parent'], 'tbl_part1'); -- no result + +SELECT * FROM test_gpt(ARRAY['pub_part_parent_no_viaroot'], 'tbl_part1'); +SELECT * FROM test_gpt(ARRAY['pub_part_parent_no_viaroot'], 'tbl_parent'); -- no result + +SELECT * FROM test_gpt(ARRAY['pub_part_leaf'], 'tbl_part1'); +SELECT * FROM test_gpt(ARRAY['pub_part_leaf'], 'tbl_parent'); -- no result + +SELECT * FROM test_gpt(ARRAY['pub_all'], 'tbl_parent'); +SELECT * FROM test_gpt(ARRAY['pub_all'], 'tbl_part1'); -- no result + +SELECT * FROM test_gpt(ARRAY['pub_all_no_viaroot'], 'tbl_part1'); +SELECT * FROM test_gpt(ARRAY['pub_all_no_viaroot'], 'tbl_parent'); -- no result + +SELECT * FROM test_gpt(ARRAY['pub_part_parent_child'], 'tbl_parent'); +SELECT * FROM test_gpt(ARRAY['pub_part_parent_child'], 'tbl_part1'); -- no result + +-- test for the EXCEPT clause +SELECT * FROM test_gpt(ARRAY['pub_all_except'], 'tbl_normal'); +SELECT * FROM test_gpt(ARRAY['pub_all_except'], 'gpt_test_sch.tbl_sch'); -- no result (excluded) +SELECT * FROM test_gpt(ARRAY['pub_all_except'], 'tbl_parent'); -- no result (excluded) +SELECT * FROM test_gpt(ARRAY['pub_all_except'], 'tbl_part1'); -- no result +SELECT * FROM test_gpt(ARRAY['pub_all_except_no_viaroot'], 'tbl_normal'); +SELECT * FROM test_gpt(ARRAY['pub_all_except_no_viaroot'], 'gpt_test_sch.tbl_sch'); -- no result (excluded) +SELECT * FROM test_gpt(ARRAY['pub_all_except_no_viaroot'], 'tbl_parent'); -- no result (excluded) +SELECT * FROM test_gpt(ARRAY['pub_all_except_no_viaroot'], 'tbl_part1'); -- no result + +-- two rows with different row filter +SELECT * FROM test_gpt(ARRAY['pub_all', 'pub_normal'], 'tbl_normal'); + +-- one row with 'pub_part_parent' +SELECT * FROM test_gpt(ARRAY['pub_part_parent', 'pub_part_parent_no_viaroot'], 'tbl_parent'); + +-- no result, tbl_parent is the effective published OID due to pubviaroot +SELECT * FROM test_gpt(ARRAY['pub_part_parent', 'pub_all'], 'tbl_part1'); + +-- no result, non-existent publication +SELECT * FROM test_gpt(ARRAY['no_such_pub'], 'tbl_normal'); + +-- no result, non-table object +SELECT * FROM test_gpt(ARRAY['pub_all'], 'gpt_test_view'); + +-- no result, empty publication array +SELECT * FROM test_gpt(ARRAY[]::text[], 'tbl_normal'); + +-- no result, OID 0 as target_relid +SELECT * FROM pg_get_publication_tables(ARRAY['pub_normal'], 0::oid); + +-- Clean up +DROP FUNCTION test_gpt(text[], text); +DROP PUBLICATION pub_all; +DROP PUBLICATION pub_all_no_viaroot; +DROP PUBLICATION pub_all_except; +DROP PUBLICATION pub_all_except_no_viaroot; +DROP PUBLICATION pub_schema; +DROP PUBLICATION pub_normal; +DROP PUBLICATION pub_part_leaf; +DROP PUBLICATION pub_part_parent; +DROP PUBLICATION pub_part_parent_no_viaroot; +DROP PUBLICATION pub_part_parent_child; +DROP VIEW gpt_test_view; +DROP TABLE tbl_normal, tbl_parent, tbl_part1; +DROP SCHEMA gpt_test_sch CASCADE; + -- stage objects for pg_dump tests CREATE SCHEMA pubme CREATE TABLE t0 (c int, d int) CREATE TABLE t1 (c int); CREATE SCHEMA pubme2 CREATE TABLE t0 (c int, d int);