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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5.5.25
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None
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None
Description
Starting with MariaDB 5.5.22 (more exactly: somewhere between r3337 and r3349 in the maria-5.5 tree) simple MEMORY tables start to consume more memory.
Example:
create table t1 (c1 int, index (c1)) engine memory;
– load 50 mio random rows
show table status;
Calculating bytes per row gives:
5.5.r3337: 16 (data) + 16 (index) = 32 bytes total
5.5.r3349: 17 (data) + 25 (index) = 42 bytes total