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ALTER TABLE MODIFY COLUMN Taking Long Time On JSON Fields (Doc ID 3040496.1)

Last updated on SEPTEMBER 15, 2024

Applies to:

HeatWave - Version N/A and later
MySQL Server - Version 8.0 and later
Information in this document applies to any platform.

Symptoms

Attempt to use the statement:

ALTER TABLE users ALGORITHM=INPLACE, LOCK=NONE MODIFY COLUMN username VARCHAR(100);

failed with an error:

ERROR 1845 (0A000): ALGORITHM=INSTANT is not supported for this operation. Try ALGORITHM=COPY/INPLACE.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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