Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.3(EOL), 10.4(EOL), 10.5(EOL), 10.6, 10.7(EOL)
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Windows Server
Description
We used 10.2.x for a long time, where update commands on a partition were quite fast.
The third partition archive is very large and should not be part of the update. MariaDB 10.6.x uses all partitions on UPDATE, not on SELECT.
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Simple Test |
USE test;
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DROP TABLE IF EXISTS src;
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DROP TABLE IF EXISTS trg;
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CREATE TABLE src (
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part INT(1), a INT(1),
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b INT(1),
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PRIMARY KEY (a,part),
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INDEX b (b,part)
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)ENGINE=InnoDB
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PARTITION BY LIST (part) (
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PARTITION Current VALUES IN (0),
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PARTITION Relevant VALUES IN (1),
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PARTITION Archive VALUES IN (2)
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);
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CREATE TABLE trg LIKE src;
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INSERT INTO src (part,a,b) VALUES (0,0,0),(1,1,1),(2,2,2);
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INSERT INTO trg (part,a,b) VALUES (0,0,0),(1,1,1),(2,2,2);
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EXPLAIN FORMAT=JSON
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UPDATE trg JOIN src USING(a) SET trg.part=1
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WHERE trg.part=1 AND src.part=2 ;
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Attachments
Issue Links
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- Closed
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- Closed
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- Closed
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