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  1. Bug #1662059
  2. Comment #2

Comment 2 for bug 1662059

Revision history for this message
Alexander Rubin (alikrubin75) wrote :

Changing a column from uncompressed to compressed for JSON crashes the server:

mysql> alter table tb_name modify json_variables JSON COLUMN_FORMAT compressed;
Query OK, 0 rows affected (0.01 sec)
Records: 0 Duplicates: 0 Warnings: 0

2017-07-13T15:21:22.114757Z 3 [ERROR] [FATAL] InnoDB: unsupported compressed BLOB header format