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  1. MariaDB Server
  2. MDEV-24690

Dropping primary key column from versioned table always fails with 1072

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    Description

      Example code:

      CREATE TABLE abc (a INT NOT NULL, b INT NOT NULL, PRIMARY KEY (b)) WITH SYSTEM VERSIONING;

      We now have a table with one primary key. Dropping column 'a' is no problem, but dropping column 'b' always fails with error code 1072.

      SET SESSION system_versioning_alter_history=KEEP; 
      ALTER TABLE abc DROP COLUMN b;

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          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-25327 Unexpected ER_DUP_ENTRY upon dropping PK column from system-versioned table

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-11114 Cannot drop column referenced by CHECK constraint

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-13613 Dropping column from table that is part of a key fails in 10.2.8

          • Major - Major loss of function.
          • Closed

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              midenok Aleksey Midenkov
              user2180613 Remy Fox
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              Dates

                Created:
                Updated:
                Resolved:

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