Mrg_isam (MERGE) Table ERROR 1168 (HY000): Unable to open underlying table (Doc ID 2285731.1)

Last updated on JULY 12, 2017

Applies to:

MySQL Server - Version 5.5 and later
Information in this document applies to any platform.

Symptoms

When accessing a MERGE table the following error is displayed:

 

Changes

 Merge underlying tables were modified somehow ( alter table, changing engine, dropped,etc)

Cause

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