[MDEV-8948] ALTER ... INPLACE does work for BINARY, BLOB Created: 2015-10-15  Updated: 2016-01-11  Resolved: 2015-10-15

Status: Closed
Project: MariaDB Server
Component/s: Data Definition - Alter Table
Affects Version/s: 10.1
Fix Version/s: 10.1.8

Type: Bug Priority: Major
Reporter: Alexander Barkov Assignee: Alexander Barkov
Resolution: Fixed Votes: 0
Labels: None


 Description   

ALTER..INPLACE does not work for BINARY data type

DROP TABLE IF EXISTS t1;
 
CREATE TABLE t1 (a BINARY(10));
 
ALTER TABLE t1 MODIFY a BINARY(10), ALGORITHM=INPLACE;

returns

ERROR 1846 (0A000): ALGORITHM=INPLACE is not supported. Reason: Cannot change column type INPLACE. Try ALGORITHM=COPY.

The same error happens for BLOB:

DROP TABLE IF EXISTS t1;
 
CREATE TABLE t1 (a BLOB);
 
ALTER TABLE t1 MODIFY a BLOB, ALGORITHM=INPLACE;

The same problem happens for GEOMETRY:

DROP TABLE IF EXISTS t1;
 
CREATE TABLE t1 (a GEOMETRY);
 
ALTER TABLE t1 MODIFY a GEOMETRY, ALGORITHM=INPLACE;

Note, it does work fine for VARBINARY:

DROP TABLE IF EXISTS t1; CREATE TABLE t1 (a VARBINARY(10));
 
ALTER TABLE t1 MODIFY a VARBINARY(10), ALGORITHM=INPLACE;


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