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5780bfa15f
The UPDATE statement wrote NULL when the column set is DATETIME and value is '0000-00-00 00:00:00'. The problem was inside WriteEngine's handling of UPDATE statements and this is where heart of change is. Other changes are related to some obsolete data structures in DML/DDL handling that just hanging around there, doing nothing.
18 lines
450 B
Plaintext
18 lines
450 B
Plaintext
DROP DATABASE IF EXISTS MCOL5535;
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CREATE DATABASE MCOL5535;
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USE MCOL5535;
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CREATE TABLE t1(i INTEGER, x DATETIME) ENGINE=COLUMNSTORE;
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INSERT INTO t1 (i, x) VALUES (1, '0000-00-00 00:00:00'), (2, NULL), (3, '2024-01-01 01:01:01');
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SELECT * FROM t1;
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i x
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1 0000-00-00 00:00:00
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2 NULL
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3 2024-01-01 01:01:01
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UPDATE t1 SET x='0000-00-00 00:00:00' WHERE i = 3;
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SELECT * FROM t1;
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i x
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1 0000-00-00 00:00:00
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2 NULL
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3 0000-00-00 00:00:00
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DROP DATABASE MCOL5535;
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