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  1. MariaDB Server
  2. MDEV-18444

ROW_FORMAT=COMPRESSED unnecessarily requires NOCOPY for INSTANT operation

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    Description

      create table t1(c varchar(9)) engine=innodb row_format=compressed;
      		 
      insert into t1 values (repeat('a', 9));
      		 
      alter table t1 modify c varchar(10), algorithm=nocopy;

      In this ALTER TABLE only data dictionary and cache are updated. So, in fact it's an INSTANT operation.

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          relates to

          Task - A task that needs to be done. MDEV-18326 Refactor some ALTER column operations to use innobase_instant_try()

          • Major - Major loss of function.
          • Stalled

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            Transition Time In Source Status Execution Times
            Eugene Kosov (Inactive) made transition -
            Open Closed
            		3d 4h 13m 1
            Eugene Kosov (Inactive) made transition -
            Closed Stalled
            		21h 56m 1
            Eugene Kosov (Inactive) made transition -
            Stalled In Progress
            		5h 10m 1
            Eugene Kosov (Inactive) made transition -
            In Progress In Review
            		17s 1
            Marko Mäkelä made transition -
            In Review Closed
            		1d 16h 34m 1

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              kevg Eugene Kosov (Inactive)
              kevg Eugene Kosov (Inactive)
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                Resolved:

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