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62 lines
1.4 KiB
Plaintext
62 lines
1.4 KiB
Plaintext
#
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# Some basic DELETE statements #
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# Author: Susil, susil.behera@mariadb.com
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#
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-- source ../include/have_columnstore.inc
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#
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--disable_warnings
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DROP DATABASE IF EXISTS mcs32_db1;
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--enable_warnings
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CREATE DATABASE mcs32_db1;
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USE mcs32_db1;
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CREATE TABLE t1 (a tinyint(3), b tinyint(5)) ENGINE=Columnstore;
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INSERT INTO t1 VALUES (1,1);
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DELETE FROM t1;
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SELECT COUNT(*) FROM t1;
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INSERT INTO t1 VALUES (1, 2), (3, 4), (4, 5);
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DELETE FROM t1 WHERE b > 4;
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SELECT COUNT(*) FROM t1;
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#Unknow column
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--error 1054
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DELETE FROM t1 WHERE unknown = 2;
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#NULL value
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INSERT INTO t1 VALUES (1, NULL);
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DELETE FROM t1 WHERE b IS NULL;
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SELECT COUNT(*) FROM t1;
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#Compare with another columnstore table
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CREATE TABLE t2 (a tinyint(3), b tinyint(5)) ENGINE=Columnstore;
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INSERT INTO t1 VALUES (1,1);
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DELETE FROM t1 WHERE a = (SELECT a FROM t2);
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SELECT COUNT(*) FROM t1;
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--error 1146
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DELETE FROM unknown;
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--error 1146
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DELETE FROM t1 WHERE a = (SELECT a FROM unknown);
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#BUG<ID>
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#Compare with another innodb table
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#CREATE TABLE t3 (a tinyint(3), b tinyint(5)) ENGINE=Innodb;
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#INSERT INTO t1 VALUES (1,1);
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#DELETE FROM t1 WHERE a > (SELECT a FROM t3);
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#SELECT COUNT(*) FROM t1;
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#Delete table
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DELETE t1 FROM t1 WHERE a > 3;
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SELECT COUNT(*) FROM t1;
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DELETE t1 FROM t1,t2 WHERE t1.a = t2.a;
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SELECT COUNT(*) FROM t1;
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#Delete folowed by truncate
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TRUNCATE t1;
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DELETE FROM t1;
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SELECT COUNT(*) FROM t1;
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#Clean up
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DROP DATABASE IF EXISTS mcs32_db1;
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