mirror of https://github.com/citusdata/citus.git
618 lines
23 KiB
Plaintext
618 lines
23 KiB
Plaintext
--
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-- PG15
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--
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SHOW server_version \gset
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SELECT substring(:'server_version', '\d+')::int >= 15 AS server_version_ge_15
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\gset
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\if :server_version_ge_15
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\else
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\q
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\endif
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CREATE SCHEMA pg15;
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SET search_path TO pg15;
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SET citus.next_shard_id TO 960000;
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SET citus.shard_count TO 4;
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--
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-- In PG15, there is an added option to use ICU as global locale provider.
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-- pg_collation has three locale-related fields: collcollate and collctype,
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-- which are libc-related fields, and a new one colliculocale, which is the
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-- ICU-related field. Only the libc-related fields or the ICU-related field
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-- is set, never both.
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-- Relevant PG commits:
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-- f2553d43060edb210b36c63187d52a632448e1d2
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-- 54637508f87bd5f07fb9406bac6b08240283be3b
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--
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-- fail, needs "locale"
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CREATE COLLATION german_phonebook_test (provider = icu, lc_collate = 'de-u-co-phonebk');
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ERROR: parameter "locale" must be specified
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-- fail, needs "locale"
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CREATE COLLATION german_phonebook_test (provider = icu, lc_collate = 'de-u-co-phonebk', lc_ctype = 'de-u-co-phonebk');
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ERROR: parameter "locale" must be specified
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-- works
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CREATE COLLATION german_phonebook_test (provider = icu, locale = 'de-u-co-phonebk');
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-- with icu provider, colliculocale will be set, collcollate and collctype will be null
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SELECT result FROM run_command_on_all_nodes('
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SELECT collcollate FROM pg_collation WHERE collname = ''german_phonebook_test'';
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');
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result
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---------------------------------------------------------------------
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(3 rows)
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SELECT result FROM run_command_on_all_nodes('
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SELECT collctype FROM pg_collation WHERE collname = ''german_phonebook_test'';
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');
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result
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---------------------------------------------------------------------
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(3 rows)
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SELECT result FROM run_command_on_all_nodes('
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SELECT colliculocale FROM pg_collation WHERE collname = ''german_phonebook_test'';
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');
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result
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---------------------------------------------------------------------
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de-u-co-phonebk
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de-u-co-phonebk
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de-u-co-phonebk
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(3 rows)
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-- with non-icu provider, colliculocale will be null, collcollate and collctype will be set
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CREATE COLLATION default_provider (provider = libc, lc_collate = "POSIX", lc_ctype = "POSIX");
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SELECT result FROM run_command_on_all_nodes('
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SELECT collcollate FROM pg_collation WHERE collname = ''default_provider'';
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');
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result
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---------------------------------------------------------------------
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POSIX
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POSIX
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POSIX
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(3 rows)
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SELECT result FROM run_command_on_all_nodes('
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SELECT collctype FROM pg_collation WHERE collname = ''default_provider'';
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');
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result
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---------------------------------------------------------------------
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POSIX
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POSIX
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POSIX
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(3 rows)
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SELECT result FROM run_command_on_all_nodes('
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SELECT colliculocale FROM pg_collation WHERE collname = ''default_provider'';
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');
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result
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---------------------------------------------------------------------
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(3 rows)
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--
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-- In PG15, Renaming triggers on partitioned tables had two problems
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-- recurses to renaming the triggers on the partitions as well.
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-- Here we test that distributed triggers behave the same way.
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-- Relevant PG commit:
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-- 80ba4bb383538a2ee846fece6a7b8da9518b6866
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--
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SET citus.enable_unsafe_triggers TO true;
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CREATE TABLE sale(
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sale_date date not null,
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state_code text,
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product_sku text,
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units integer)
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PARTITION BY list (state_code);
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ALTER TABLE sale ADD CONSTRAINT sale_pk PRIMARY KEY (state_code, sale_date);
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CREATE TABLE sale_newyork PARTITION OF sale FOR VALUES IN ('NY');
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CREATE TABLE sale_california PARTITION OF sale FOR VALUES IN ('CA');
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CREATE TABLE record_sale(
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operation_type text not null,
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product_sku text,
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state_code text,
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units integer,
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PRIMARY KEY(state_code, product_sku, operation_type, units));
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SELECT create_distributed_table('sale', 'state_code');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT create_distributed_table('record_sale', 'state_code', colocate_with := 'sale');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE OR REPLACE FUNCTION record_sale()
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RETURNS trigger
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AS $$
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BEGIN
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INSERT INTO pg15.record_sale(operation_type, product_sku, state_code, units)
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VALUES (TG_OP, NEW.product_sku, NEW.state_code, NEW.units);
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RETURN NULL;
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END;
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$$ LANGUAGE plpgsql;
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CREATE TRIGGER record_sale_trigger
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AFTER INSERT OR UPDATE OR DELETE ON sale
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FOR EACH ROW EXECUTE FUNCTION pg15.record_sale();
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CREATE VIEW sale_triggers AS
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SELECT tgname, tgrelid::regclass, tgenabled
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FROM pg_trigger
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WHERE tgrelid::regclass::text like 'sale%'
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ORDER BY 1, 2;
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SELECT * FROM sale_triggers ORDER BY 1, 2;
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tgname | tgrelid | tgenabled
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---------------------------------------------------------------------
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record_sale_trigger | sale | O
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record_sale_trigger | sale_newyork | O
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record_sale_trigger | sale_california | O
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truncate_trigger_xxxxxxx | sale | O
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truncate_trigger_xxxxxxx | sale_california | O
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truncate_trigger_xxxxxxx | sale_newyork | O
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(6 rows)
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ALTER TRIGGER "record_sale_trigger" ON "pg15"."sale" RENAME TO "new_record_sale_trigger";
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SELECT * FROM sale_triggers ORDER BY 1, 2;
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tgname | tgrelid | tgenabled
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---------------------------------------------------------------------
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new_record_sale_trigger | sale | O
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new_record_sale_trigger | sale_newyork | O
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new_record_sale_trigger | sale_california | O
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truncate_trigger_xxxxxxx | sale | O
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truncate_trigger_xxxxxxx | sale_california | O
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truncate_trigger_xxxxxxx | sale_newyork | O
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(6 rows)
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-- test that we can't rename a distributed clone trigger
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ALTER TRIGGER "new_record_sale_trigger" ON "pg15"."sale_newyork" RENAME TO "another_trigger_name";
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ERROR: cannot rename trigger "new_record_sale_trigger" on table "sale_newyork"
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HINT: Rename trigger on partitioned table "sale" instead.
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--
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-- In PG15, For GENERATED columns, all dependencies of the generation
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-- expression are recorded as NORMAL dependencies of the column itself.
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-- This requires CASCADE to drop generated cols with the original col.
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-- Test this behavior in distributed table, specifically with
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-- undistribute_table within a transaction.
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-- Relevant PG Commit: cb02fcb4c95bae08adaca1202c2081cfc81a28b5
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--
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CREATE TABLE generated_stored_ref (
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col_1 int,
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col_2 int,
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col_3 int generated always as (col_1+col_2) stored,
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col_4 int,
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col_5 int generated always as (col_4*2-col_1) stored
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);
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SELECT create_reference_table ('generated_stored_ref');
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create_reference_table
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---------------------------------------------------------------------
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(1 row)
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-- populate the table
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INSERT INTO generated_stored_ref (col_1, col_4) VALUES (1,2), (11,12);
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INSERT INTO generated_stored_ref (col_1, col_2, col_4) VALUES (100,101,102), (200,201,202);
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SELECT * FROM generated_stored_ref ORDER BY 1,2,3,4,5;
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col_1 | col_2 | col_3 | col_4 | col_5
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---------------------------------------------------------------------
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1 | | | 2 | 3
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11 | | | 12 | 13
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100 | 101 | 201 | 102 | 104
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200 | 201 | 401 | 202 | 204
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(4 rows)
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-- fails, CASCADE must be specified
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-- will test CASCADE inside the transcation
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ALTER TABLE generated_stored_ref DROP COLUMN col_1;
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ERROR: cannot drop column col_1 of table generated_stored_ref because other objects depend on it
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DETAIL: column col_3 of table generated_stored_ref depends on column col_1 of table generated_stored_ref
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column col_5 of table generated_stored_ref depends on column col_1 of table generated_stored_ref
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HINT: Use DROP ... CASCADE to drop the dependent objects too.
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BEGIN;
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-- drops col_1, col_3, col_5
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ALTER TABLE generated_stored_ref DROP COLUMN col_1 CASCADE;
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NOTICE: drop cascades to 2 other objects
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DETAIL: drop cascades to column col_3 of table generated_stored_ref
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drop cascades to column col_5 of table generated_stored_ref
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ALTER TABLE generated_stored_ref DROP COLUMN col_4;
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-- show that undistribute_table works fine
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SELECT undistribute_table('generated_stored_ref');
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NOTICE: creating a new table for pg15.generated_stored_ref
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NOTICE: moving the data of pg15.generated_stored_ref
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NOTICE: dropping the old pg15.generated_stored_ref
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NOTICE: renaming the new table to pg15.generated_stored_ref
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undistribute_table
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---------------------------------------------------------------------
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(1 row)
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INSERT INTO generated_stored_ref VALUES (5);
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SELECT * FROM generated_stored_REF ORDER BY 1;
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col_2
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---------------------------------------------------------------------
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5
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101
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201
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(5 rows)
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ROLLBACK;
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SELECT undistribute_table('generated_stored_ref');
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NOTICE: creating a new table for pg15.generated_stored_ref
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NOTICE: moving the data of pg15.generated_stored_ref
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NOTICE: dropping the old pg15.generated_stored_ref
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NOTICE: renaming the new table to pg15.generated_stored_ref
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undistribute_table
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---------------------------------------------------------------------
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(1 row)
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--
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-- In PG15, there is a new command called MERGE
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-- It is currently not supported for Citus tables
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-- Test the behavior with various commands with Citus table types
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-- Relevant PG Commit: 7103ebb7aae8ab8076b7e85f335ceb8fe799097c
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--
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CREATE TABLE tbl1
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(
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x INT
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);
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CREATE TABLE tbl2
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(
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x INT
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);
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-- on local tables works fine
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MERGE INTO tbl1 USING tbl2 ON (true)
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WHEN MATCHED THEN DELETE;
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-- add coordinator node as a worker
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SET client_min_messages to ERROR;
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SELECT 1 FROM master_add_node('localhost', :master_port, groupId => 0);
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?column?
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---------------------------------------------------------------------
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1
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(1 row)
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RESET client_min_messages;
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-- one table is Citus local table, fails
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SELECT citus_add_local_table_to_metadata('tbl1');
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citus_add_local_table_to_metadata
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---------------------------------------------------------------------
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(1 row)
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MERGE INTO tbl1 USING tbl2 ON (true)
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WHEN MATCHED THEN DELETE;
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ERROR: MERGE command is not supported on Citus tables yet
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SELECT undistribute_table('tbl1');
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NOTICE: creating a new table for pg15.tbl1
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NOTICE: moving the data of pg15.tbl1
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NOTICE: dropping the old pg15.tbl1
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NOTICE: renaming the new table to pg15.tbl1
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undistribute_table
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---------------------------------------------------------------------
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(1 row)
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-- the other table is Citus local table, fails
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SELECT citus_add_local_table_to_metadata('tbl2');
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citus_add_local_table_to_metadata
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---------------------------------------------------------------------
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(1 row)
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MERGE INTO tbl1 USING tbl2 ON (true)
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WHEN MATCHED THEN DELETE;
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ERROR: MERGE command is not supported on Citus tables yet
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-- one table is reference, the other local, not supported
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SELECT create_reference_table('tbl2');
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create_reference_table
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---------------------------------------------------------------------
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(1 row)
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MERGE INTO tbl1 USING tbl2 ON (true)
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WHEN MATCHED THEN DELETE;
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ERROR: MERGE command is not supported on Citus tables yet
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-- now, both are reference, still not supported
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SELECT create_reference_table('tbl1');
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create_reference_table
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---------------------------------------------------------------------
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(1 row)
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MERGE INTO tbl1 USING tbl2 ON (true)
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WHEN MATCHED THEN DELETE;
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ERROR: MERGE command is not supported on Citus tables yet
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-- now, both distributed, not works
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SELECT undistribute_table('tbl1');
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NOTICE: creating a new table for pg15.tbl1
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NOTICE: moving the data of pg15.tbl1
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NOTICE: dropping the old pg15.tbl1
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NOTICE: renaming the new table to pg15.tbl1
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undistribute_table
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---------------------------------------------------------------------
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(1 row)
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SELECT undistribute_table('tbl2');
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NOTICE: creating a new table for pg15.tbl2
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NOTICE: moving the data of pg15.tbl2
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NOTICE: dropping the old pg15.tbl2
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NOTICE: renaming the new table to pg15.tbl2
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undistribute_table
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---------------------------------------------------------------------
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(1 row)
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SELECT 1 FROM citus_remove_node('localhost', :master_port);
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?column?
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---------------------------------------------------------------------
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1
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(1 row)
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SELECT create_distributed_table('tbl1', 'x');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT create_distributed_table('tbl2', 'x');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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MERGE INTO tbl1 USING tbl2 ON (true)
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WHEN MATCHED THEN DELETE;
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ERROR: MERGE command is not supported on Citus tables yet
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-- also, not inside subqueries & ctes
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WITH targq AS (
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SELECT * FROM tbl2
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)
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MERGE INTO tbl1 USING targq ON (true)
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WHEN MATCHED THEN DELETE;
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ERROR: MERGE command is not supported on Citus tables yet
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-- crashes on beta3, fixed on 15 stable
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--WITH foo AS (
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-- MERGE INTO tbl1 USING tbl2 ON (true)
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-- WHEN MATCHED THEN DELETE
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--) SELECT * FROM foo;
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--COPY (
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-- MERGE INTO tbl1 USING tbl2 ON (true)
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-- WHEN MATCHED THEN DELETE
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--) TO stdout;
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MERGE INTO tbl1 t
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USING tbl2
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ON (true)
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WHEN MATCHED THEN
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UPDATE SET x = (SELECT count(*) FROM tbl2);
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ERROR: MERGE command is not supported on Citus tables yet
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-- test numeric types with negative scale
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CREATE TABLE numeric_negative_scale(numeric_column numeric(3,-1), orig_value int);
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INSERT into numeric_negative_scale SELECT x,x FROM generate_series(111, 115) x;
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-- verify that we can not distribute by a column that has numeric type with negative scale
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SELECT create_distributed_table('numeric_negative_scale','numeric_column');
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ERROR: cannot distribute relation: numeric_negative_scale
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DETAIL: Distribution column must not use numeric type with negative scale
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-- However, we can distribute by other columns
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SELECT create_distributed_table('numeric_negative_scale','orig_value');
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NOTICE: Copying data from local table...
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NOTICE: copying the data has completed
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DETAIL: The local data in the table is no longer visible, but is still on disk.
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HINT: To remove the local data, run: SELECT truncate_local_data_after_distributing_table($$pg15.numeric_negative_scale$$)
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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-- Verify that we can not change the distribution column to the numeric column
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SELECT alter_distributed_table('numeric_negative_scale',
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distribution_column := 'numeric_column');
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NOTICE: creating a new table for pg15.numeric_negative_scale
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ERROR: cannot distribute relation: numeric_negative_scale_xxxxxx"
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DETAIL: Distribution column must not use numeric type with negative scale
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SELECT * FROM numeric_negative_scale ORDER BY 1,2;
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numeric_column | orig_value
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---------------------------------------------------------------------
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110 | 111
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110 | 112
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110 | 113
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110 | 114
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120 | 115
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(5 rows)
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-- verify that numeric types with scale greater than precision are also ok
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-- a precision of 2, and scale of 3 means that all the numbers should be less than 10^-1 and of the form 0,0XY
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CREATE TABLE numeric_scale_gt_precision(numeric_column numeric(2,3));
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SELECT * FROM create_distributed_table('numeric_scale_gt_precision','numeric_column');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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INSERT INTO numeric_scale_gt_precision SELECT x FROM generate_series(0.01234, 0.09, 0.005) x;
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-- verify that we store only 2 digits, and discard the rest of them.
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SELECT * FROM numeric_scale_gt_precision ORDER BY 1;
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numeric_column
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---------------------------------------------------------------------
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0.012
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0.017
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0.022
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0.027
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0.032
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0.037
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0.042
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0.047
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0.052
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0.057
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0.062
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0.067
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0.072
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0.077
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0.082
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0.087
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(16 rows)
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-- verify we can route queries to the right shards
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SELECT * FROM numeric_scale_gt_precision WHERE numeric_column=0.027;
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numeric_column
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---------------------------------------------------------------------
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0.027
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(1 row)
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-- test new regex functions
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-- print order comments that contain the word `fluffily` at least twice
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SELECT o_comment FROM public.orders WHERE regexp_count(o_comment, 'FluFFily', 1, 'i')>=2 ORDER BY 1;
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o_comment
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---------------------------------------------------------------------
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al, bold deposits cajole fluffily fluffily final foxes. pending ideas beli
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ly regular packages are fluffily even ideas. fluffily final
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ng instructions integrate fluffily among the fluffily silent accounts. bli
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ructions wake fluffily fluffily final gifts! furiou
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s boost blithely fluffily idle ideas? fluffily even pin
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(5 rows)
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-- print the same items using a different regexp function
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SELECT o_comment FROM public.orders WHERE regexp_like(o_comment, 'fluffily.*fluffily') ORDER BY 1;
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o_comment
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---------------------------------------------------------------------
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al, bold deposits cajole fluffily fluffily final foxes. pending ideas beli
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ly regular packages are fluffily even ideas. fluffily final
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ng instructions integrate fluffily among the fluffily silent accounts. bli
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ructions wake fluffily fluffily final gifts! furiou
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s boost blithely fluffily idle ideas? fluffily even pin
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(5 rows)
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-- print the position where we find the second fluffily in the comment
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SELECT o_comment, regexp_instr(o_comment, 'fluffily.*(fluffily)') FROM public.orders ORDER BY 2 desc LIMIT 5;
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o_comment | regexp_instr
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---------------------------------------------------------------------
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ng instructions integrate fluffily among the fluffily silent accounts. bli | 27
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al, bold deposits cajole fluffily fluffily final foxes. pending ideas beli | 26
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ly regular packages are fluffily even ideas. fluffily final | 25
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s boost blithely fluffily idle ideas? fluffily even pin | 18
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ructions wake fluffily fluffily final gifts! furiou | 15
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(5 rows)
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-- print the substrings between two `fluffily`
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SELECT regexp_substr(o_comment, 'fluffily.*fluffily') FROM public.orders ORDER BY 1 LIMIT 5;
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regexp_substr
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---------------------------------------------------------------------
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fluffily among the fluffily
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fluffily even ideas. fluffily
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fluffily fluffily
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fluffily fluffily
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fluffily idle ideas? fluffily
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(5 rows)
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-- replace second `fluffily` with `silkily`
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SELECT regexp_replace(o_comment, 'fluffily', 'silkily', 1, 2) FROM public.orders WHERE regexp_like(o_comment, 'fluffily.*fluffily') ORDER BY 1 desc;
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regexp_replace
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---------------------------------------------------------------------
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s boost blithely fluffily idle ideas? silkily even pin
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ructions wake fluffily silkily final gifts! furiou
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ng instructions integrate fluffily among the silkily silent accounts. bli
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ly regular packages are fluffily even ideas. silkily final
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al, bold deposits cajole fluffily silkily final foxes. pending ideas beli
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(5 rows)
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-- test new COPY features
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-- COPY TO statements with text format and headers
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CREATE TABLE copy_test(id int, data int);
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SELECT create_distributed_table('copy_test', 'id');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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INSERT INTO copy_test SELECT x, x FROM generate_series(1,100) x;
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COPY copy_test TO :'temp_dir''copy_test.txt' WITH ( HEADER true, FORMAT text);
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-- Create another distributed table with different column names and test COPY FROM with header match
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CREATE TABLE copy_test2(id int, data_ int);
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SELECT create_distributed_table('copy_test2', 'id');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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COPY copy_test2 FROM :'temp_dir''copy_test.txt' WITH ( HEADER match, FORMAT text);
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ERROR: column name mismatch in header line field 2: got "data", expected "data_"
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CONTEXT: COPY copy_test2, line 1: "id data"
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-- verify that the command works if we rename the column
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ALTER TABLE copy_test2 RENAME COLUMN data_ TO data;
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COPY copy_test2 FROM :'temp_dir''copy_test.txt' WITH ( HEADER match, FORMAT text);
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SELECT count(*)=100 FROM copy_test2;
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?column?
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---------------------------------------------------------------------
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t
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(1 row)
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-- allow foreign key columns to have SET NULL/DEFAULT on column basis
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-- currently only reference tables can support that
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CREATE TABLE PKTABLE (tid int, id int, PRIMARY KEY (tid, id));
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CREATE TABLE FKTABLE (
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tid int, id int,
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fk_id_del_set_null int,
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fk_id_del_set_default int DEFAULT 0,
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FOREIGN KEY (tid, fk_id_del_set_null) REFERENCES PKTABLE ON DELETE SET NULL (fk_id_del_set_null),
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FOREIGN KEY (tid, fk_id_del_set_default) REFERENCES PKTABLE ON DELETE SET DEFAULT (fk_id_del_set_default)
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);
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SELECT create_reference_table('PKTABLE');
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create_reference_table
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---------------------------------------------------------------------
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(1 row)
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-- ok, Citus could relax this constraint in the future
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SELECT create_distributed_table('FKTABLE', 'tid');
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ERROR: cannot create foreign key constraint
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DETAIL: SET NULL or SET DEFAULT is not supported in ON DELETE operation when distribution key is included in the foreign key constraint
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-- with reference tables it should all work fine
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SELECT create_reference_table('FKTABLE');
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create_reference_table
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---------------------------------------------------------------------
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(1 row)
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-- show that the definition is expected
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SELECT pg_get_constraintdef(oid) FROM pg_constraint WHERE conrelid = 'fktable'::regclass::oid ORDER BY oid;
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pg_get_constraintdef
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---------------------------------------------------------------------
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FOREIGN KEY (tid, fk_id_del_set_null) REFERENCES pktable(tid, id) ON DELETE SET NULL (fk_id_del_set_null)
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FOREIGN KEY (tid, fk_id_del_set_default) REFERENCES pktable(tid, id) ON DELETE SET DEFAULT (fk_id_del_set_default)
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(2 rows)
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\c - - - :worker_1_port
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SET search_path TO pg15;
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-- show that the definition is expected on the worker as well
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SELECT pg_get_constraintdef(oid) FROM pg_constraint WHERE conrelid = 'fktable'::regclass::oid ORDER BY oid;
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pg_get_constraintdef
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---------------------------------------------------------------------
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FOREIGN KEY (tid, fk_id_del_set_default) REFERENCES pktable(tid, id) ON DELETE SET DEFAULT (fk_id_del_set_default)
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FOREIGN KEY (tid, fk_id_del_set_null) REFERENCES pktable(tid, id) ON DELETE SET NULL (fk_id_del_set_null)
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(2 rows)
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-- also, make sure that it works as expected
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INSERT INTO PKTABLE VALUES (1, 0), (1, 1), (1, 2);
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INSERT INTO FKTABLE VALUES
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(1, 1, 1, NULL),
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(1, 2, NULL, 2);
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DELETE FROM PKTABLE WHERE id = 1 OR id = 2;
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SELECT * FROM FKTABLE ORDER BY id;
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tid | id | fk_id_del_set_null | fk_id_del_set_default
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---------------------------------------------------------------------
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1 | 1 | |
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1 | 2 | | 0
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(2 rows)
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-- Clean up
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\c - - - :master_port
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\set VERBOSITY terse
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DROP SCHEMA pg15 CASCADE;
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NOTICE: drop cascades to 15 other objects
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