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https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-20 09:07:44 +03:00
34 lines
1.3 KiB
Plaintext
34 lines
1.3 KiB
Plaintext
DROP DATABASE IF EXISTS mcs265_db;
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CREATE DATABASE mcs265_db;
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USE mcs265_db;
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CREATE TABLE t1(t1_d DATE, t1_t TIME, t1_dt DATETIME)ENGINE=Columnstore;
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INSERT INTO t1 VALUES(NULL, NULL, NULL);
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INSERT INTO t1 VALUES('2222-11-11', '12:12:12', '2020-11-11 12:12:12');
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INSERT INTO t1 VALUES('2020-01-01', '11:11:11', '2020-12-31 12:34:56');
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INSERT INTO t1 VALUES('2016-02-01', '11:11:11', '2017-02-01 12:12:12');
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SELECT SUBTIME('1990-09-24 19:52:17', '1 03:33:33') FROM t1 LIMIT 1;
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SUBTIME('1990-09-24 19:52:17', '1 03:33:33')
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1990-09-23 16:18:44
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SELECT SUBTIME('19:52:17', '03:33:33') FROM t1 LIMIT 1;
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SUBTIME('19:52:17', '03:33:33')
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16:18:44
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SELECT t1_d, SUBTIME(t1_d, '1 00:11:11.7101') FROM t1 ORDER BY 1;
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t1_d SUBTIME(t1_d, '1 00:11:11.7101')
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NULL NULL
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2016-02-01 2016-01-29 23:48:48.9928
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2020-01-01 2019-12-30 23:48:48.9928
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2222-11-11 2222-11-09 23:48:48.9928
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SELECT t1_dt, SUBTIME(t1_dt, '1 11:11:11') FROM t1 ORDER BY 1;
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t1_dt SUBTIME(t1_dt, '1 11:11:11')
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NULL NULL
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2017-02-01 12:12:12 2017-01-31 01:01:01
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2020-11-11 12:12:12 2020-11-10 01:01:01
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2020-12-31 12:34:56 2020-12-30 01:23:45
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SELECT t1_t, SUBTIME(t1_t, '00:11:11.7101') FROM t1 ORDER BY 1;
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t1_t SUBTIME(t1_t, '00:11:11.7101')
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NULL NULL
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11:11:11 10:59:59.9928
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11:11:11 10:59:59.9928
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12:12:12 12:01:00.9928
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DROP DATABASE mcs265_db;
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