mirror of https://github.com/citusdata/citus.git
100 lines
3.3 KiB
SQL
100 lines
3.3 KiB
SQL
--
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-- Testing insert on cstore_fdw tables.
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--
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CREATE TABLE test_insert_command (a int) USING columnar;
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-- test single row inserts fail
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select count(*) from test_insert_command;
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insert into test_insert_command values(1);
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select count(*) from test_insert_command;
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insert into test_insert_command default values;
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select count(*) from test_insert_command;
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-- test inserting from another table succeed
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CREATE TABLE test_insert_command_data (a int);
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select count(*) from test_insert_command_data;
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insert into test_insert_command_data values(1);
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select count(*) from test_insert_command_data;
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insert into test_insert_command select * from test_insert_command_data;
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select count(*) from test_insert_command;
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drop table test_insert_command_data;
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drop table test_insert_command;
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-- test long attribute value insertion
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-- create sufficiently long text so that data is stored in toast
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CREATE TABLE test_long_text AS
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SELECT a as int_val, string_agg(random()::text, '') as text_val
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FROM generate_series(1, 10) a, generate_series(1, 1000) b
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GROUP BY a ORDER BY a;
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-- store hash values of text for later comparison
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CREATE TABLE test_long_text_hash AS
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SELECT int_val, md5(text_val) AS hash
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FROM test_long_text;
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CREATE TABLE test_cstore_long_text(int_val int, text_val text)
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USING columnar;
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-- store long text in cstore table
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INSERT INTO test_cstore_long_text SELECT * FROM test_long_text;
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-- drop source table to remove original text from toast
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DROP TABLE test_long_text;
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-- check if text data is still available in cstore table
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-- by comparing previously stored hash.
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SELECT a.int_val
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FROM test_long_text_hash a, test_cstore_long_text c
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WHERE a.int_val = c.int_val AND a.hash = md5(c.text_val);
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DROP TABLE test_long_text_hash;
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DROP TABLE test_cstore_long_text;
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CREATE TABLE test_logical_replication(i int) USING columnar;
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-- should succeed
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INSERT INTO test_logical_replication VALUES (1);
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CREATE PUBLICATION test_columnar_publication
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FOR TABLE test_logical_replication;
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-- should fail; columnar does not support logical replication
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INSERT INTO test_logical_replication VALUES (2);
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DROP PUBLICATION test_columnar_publication;
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-- should succeed
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INSERT INTO test_logical_replication VALUES (3);
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DROP TABLE test_logical_replication;
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--
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-- test toast interactions
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--
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-- row table with data in different storage formats
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CREATE TABLE test_toast_row(plain TEXT, main TEXT, external TEXT, extended TEXT);
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ALTER TABLE test_toast_row ALTER COLUMN plain SET STORAGE plain; -- inline, uncompressed
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ALTER TABLE test_toast_row ALTER COLUMN main SET STORAGE main; -- inline, compressed
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ALTER TABLE test_toast_row ALTER COLUMN external SET STORAGE external; -- out-of-line, uncompressed
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ALTER TABLE test_toast_row ALTER COLUMN extended SET STORAGE extended; -- out-of-line, compressed
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INSERT INTO test_toast_row VALUES(
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repeat('w', 5000), repeat('x', 5000), repeat('y', 5000), repeat('z', 5000));
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SELECT
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pg_column_size(plain), pg_column_size(main),
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pg_column_size(external), pg_column_size(extended)
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FROM test_toast_row;
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CREATE TABLE test_toast_columnar(plain TEXT, main TEXT, external TEXT, extended TEXT)
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USING columnar;
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INSERT INTO test_toast_columnar SELECT plain, main, external, extended
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FROM test_toast_row;
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SELECT
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pg_column_size(plain), pg_column_size(main),
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pg_column_size(external), pg_column_size(extended)
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FROM test_toast_columnar;
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DROP TABLE test_toast_row;
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DROP TABLE test_toast_columnar;
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