130 lines
5.5 KiB
SQL
130 lines
5.5 KiB
SQL
--
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-- Tests for functions providing information about partitions
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--
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SELECT * FROM pg_partition_tree(NULL);
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SELECT * FROM pg_partition_tree(0);
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SELECT * FROM pg_partition_ancestors(NULL);
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SELECT * FROM pg_partition_ancestors(0);
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SELECT pg_partition_root(NULL);
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SELECT pg_partition_root(0);
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-- Test table partition trees
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CREATE TABLE ptif_test (a int, b int) PARTITION BY range (a);
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CREATE TABLE ptif_test0 PARTITION OF ptif_test
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FOR VALUES FROM (minvalue) TO (0) PARTITION BY list (b);
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CREATE TABLE ptif_test01 PARTITION OF ptif_test0 FOR VALUES IN (1);
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CREATE TABLE ptif_test1 PARTITION OF ptif_test
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FOR VALUES FROM (0) TO (100) PARTITION BY list (b);
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CREATE TABLE ptif_test11 PARTITION OF ptif_test1 FOR VALUES IN (1);
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CREATE TABLE ptif_test2 PARTITION OF ptif_test
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FOR VALUES FROM (100) TO (200);
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-- This partitioned table should remain with no partitions.
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CREATE TABLE ptif_test3 PARTITION OF ptif_test
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FOR VALUES FROM (200) TO (maxvalue) PARTITION BY list (b);
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-- Test pg_partition_root for tables
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SELECT pg_partition_root('ptif_test');
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SELECT pg_partition_root('ptif_test0');
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SELECT pg_partition_root('ptif_test01');
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SELECT pg_partition_root('ptif_test3');
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-- Test index partition tree
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CREATE INDEX ptif_test_index ON ONLY ptif_test (a);
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CREATE INDEX ptif_test0_index ON ONLY ptif_test0 (a);
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ALTER INDEX ptif_test_index ATTACH PARTITION ptif_test0_index;
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CREATE INDEX ptif_test01_index ON ptif_test01 (a);
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ALTER INDEX ptif_test0_index ATTACH PARTITION ptif_test01_index;
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CREATE INDEX ptif_test1_index ON ONLY ptif_test1 (a);
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ALTER INDEX ptif_test_index ATTACH PARTITION ptif_test1_index;
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CREATE INDEX ptif_test11_index ON ptif_test11 (a);
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ALTER INDEX ptif_test1_index ATTACH PARTITION ptif_test11_index;
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CREATE INDEX ptif_test2_index ON ptif_test2 (a);
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ALTER INDEX ptif_test_index ATTACH PARTITION ptif_test2_index;
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CREATE INDEX ptif_test3_index ON ptif_test3 (a);
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ALTER INDEX ptif_test_index ATTACH PARTITION ptif_test3_index;
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-- Test pg_partition_root for indexes
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SELECT pg_partition_root('ptif_test_index');
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SELECT pg_partition_root('ptif_test0_index');
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SELECT pg_partition_root('ptif_test01_index');
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SELECT pg_partition_root('ptif_test3_index');
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-- List all tables members of the tree
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SELECT relid, parentrelid, level, isleaf
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FROM pg_partition_tree('ptif_test');
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-- List tables from an intermediate level
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SELECT relid, parentrelid, level, isleaf
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FROM pg_partition_tree('ptif_test0') p
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JOIN pg_class c ON (p.relid = c.oid);
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-- List from leaf table
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SELECT relid, parentrelid, level, isleaf
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FROM pg_partition_tree('ptif_test01') p
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JOIN pg_class c ON (p.relid = c.oid);
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-- List from partitioned table with no partitions
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SELECT relid, parentrelid, level, isleaf
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FROM pg_partition_tree('ptif_test3') p
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JOIN pg_class c ON (p.relid = c.oid);
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-- List all ancestors of root and leaf tables
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SELECT * FROM pg_partition_ancestors('ptif_test01');
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SELECT * FROM pg_partition_ancestors('ptif_test');
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-- List all members using pg_partition_root with leaf table reference
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SELECT relid, parentrelid, level, isleaf
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FROM pg_partition_tree(pg_partition_root('ptif_test01')) p
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JOIN pg_class c ON (p.relid = c.oid);
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-- List all indexes members of the tree
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SELECT relid, parentrelid, level, isleaf
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FROM pg_partition_tree('ptif_test_index');
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-- List indexes from an intermediate level
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SELECT relid, parentrelid, level, isleaf
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FROM pg_partition_tree('ptif_test0_index') p
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JOIN pg_class c ON (p.relid = c.oid);
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-- List from leaf index
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SELECT relid, parentrelid, level, isleaf
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FROM pg_partition_tree('ptif_test01_index') p
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JOIN pg_class c ON (p.relid = c.oid);
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-- List from partitioned index with no partitions
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SELECT relid, parentrelid, level, isleaf
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FROM pg_partition_tree('ptif_test3_index') p
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JOIN pg_class c ON (p.relid = c.oid);
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-- List all members using pg_partition_root with leaf index reference
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SELECT relid, parentrelid, level, isleaf
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FROM pg_partition_tree(pg_partition_root('ptif_test01_index')) p
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JOIN pg_class c ON (p.relid = c.oid);
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-- List all ancestors of root and leaf indexes
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SELECT * FROM pg_partition_ancestors('ptif_test01_index');
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SELECT * FROM pg_partition_ancestors('ptif_test_index');
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DROP TABLE ptif_test;
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-- Table that is not part of any partition tree is not listed.
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CREATE TABLE ptif_normal_table(a int);
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SELECT relid, parentrelid, level, isleaf
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FROM pg_partition_tree('ptif_normal_table');
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SELECT * FROM pg_partition_ancestors('ptif_normal_table');
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SELECT pg_partition_root('ptif_normal_table');
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DROP TABLE ptif_normal_table;
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-- Various partitioning-related functions return empty/NULL if passed relations
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-- of types that cannot be part of a partition tree; for example, views,
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-- materialized views, legacy inheritance children or parents, etc.
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CREATE VIEW ptif_test_view AS SELECT 1;
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CREATE MATERIALIZED VIEW ptif_test_matview AS SELECT 1;
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CREATE TABLE ptif_li_parent ();
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CREATE TABLE ptif_li_child () INHERITS (ptif_li_parent);
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SELECT * FROM pg_partition_tree('ptif_test_view');
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SELECT * FROM pg_partition_tree('ptif_test_matview');
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SELECT * FROM pg_partition_tree('ptif_li_parent');
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SELECT * FROM pg_partition_tree('ptif_li_child');
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SELECT * FROM pg_partition_ancestors('ptif_test_view');
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SELECT * FROM pg_partition_ancestors('ptif_test_matview');
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SELECT * FROM pg_partition_ancestors('ptif_li_parent');
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SELECT * FROM pg_partition_ancestors('ptif_li_child');
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SELECT pg_partition_root('ptif_test_view');
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SELECT pg_partition_root('ptif_test_matview');
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SELECT pg_partition_root('ptif_li_parent');
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SELECT pg_partition_root('ptif_li_child');
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DROP VIEW ptif_test_view;
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DROP MATERIALIZED VIEW ptif_test_matview;
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DROP TABLE ptif_li_parent, ptif_li_child;
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