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https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-18 21:44:02 +03:00
64f1d541d0
feat(charset)!: utf8 is a new charset default and utf8_general_ci is a new collation default in the engine configuration file shipped --------- Co-authored-by: Leonid Fedorov <leonid.fedorov@mariadb.com> Co-authored-by: mariadb-DanielLee <daniel.lee@mariadb.com>
43 lines
1.3 KiB
Plaintext
43 lines
1.3 KiB
Plaintext
DROP DATABASE IF EXISTS mcs176_db;
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CREATE DATABASE mcs176_db;
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USE mcs176_db;
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SET default_storage_engine=Columnstore;
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CREATE TABLE t1 (a CHAR(1), b INT, c DATETIME, d DOUBLE);
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INSERT INTO t1 VALUES (NULL, NULL, '0-0-0', NULL),('a', 12, '1212-12-12', 1.19691E+100),('b', 13, '1313-3-13 13:13:13', 2.1961E+18),('c', 14, '1414-4-14', 0.16191),('d', 15, '2015-5-15 15:15:15', 1.971917);
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` char(1) DEFAULT NULL,
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`b` int(11) DEFAULT NULL,
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`c` datetime DEFAULT NULL,
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`d` double DEFAULT NULL
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) ENGINE=Columnstore DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci
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SELECT IF(10<20, 1, 2);
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IF(10<20, 1, 2)
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1
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SELECT IF(STRCMP("hello","hi") = 0, "YES", "NO");
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IF(STRCMP("hello","hi") = 0, "YES", "NO")
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NO
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SELECT a, IF(a='b', 10, 20) AS result FROM t1;
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a result
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NULL 20
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a 20
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b 10
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c 20
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d 20
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SELECT b, IF(b<=13, 'Less than or equal to 13', 'Greater than 13') AS result FROM t1;
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b result
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NULL Greater than 13
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12 Less than or equal to 13
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13 Less than or equal to 13
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14 Greater than 13
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15 Greater than 13
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SELECT c, IF(c>0, 'date', 'zero date') AS result FROM t1;
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c result
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0000-00-00 00:00:00 zero date
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1212-12-12 00:00:00 date
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1313-03-13 13:13:13 date
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1414-04-14 00:00:00 date
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2015-05-15 15:15:15 date
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DROP DATABASE mcs176_db;
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