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  1. MariaDB Server
  2. MDEV-28933

CREATE OR REPLACE fails to recreate same constraint name

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    Description

      CREATE OR REPLACE failed with "Duplicate key on write or update" when it replace an empty table with the non-anonymous constraint name

      From comment
      Test fails due to a duplicate key on SYS_FOREIGN.NAME on the non-anonymous constraint name:

      Test:

      --source include/have_innodb.inc
      		 
       
      		 
      CREATE TABLE t(a INT PRIMARY KEY) ENGINE=InnoDB;
      		 
      CREATE OR REPLACE TABLE u(a INT PRIMARY KEY, CONSTRAINT c FOREIGN KEY d (a) REFERENCES t (a)) ENGINE=InnoDB;
      		 
      CREATE OR REPLACE TABLE u(a INT PRIMARY KEY, CONSTRAINT c FOREIGN KEY d (a) REFERENCES t (a)) ENGINE=InnoDB;
      		 
      DROP TABLE u, t;

      Actual result:

      At line 5: query 'CREATE OR REPLACE TABLE u(a INT PRIMARY KEY, CONSTRAINT c FOREIGN KEY d (a) REFERENCES t (a)) ENGINE=InnoDB' failed: ER_CANT_CREATE_TABLE (1005): Can't create table `test`.`u` (errno: 121 "Duplicate key on write or update")

      Expected result:
      No errors

      Attachments

        Issue Links

          blocks

          New Feature - A new feature of the product, which has yet to be developed. MDEV-25292 Atomic CREATE OR REPLACE TABLE

          • Critical - Crashes, loss of data, severe memory leak.
          • Stalled
          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-28980 InnoDB: Failing assertion: len <= MAX_TABLE_NAME_LEN

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          is caused by

          New Feature - A new feature of the product, which has yet to be developed. MDEV-25292 Atomic CREATE OR REPLACE TABLE

          • Critical - Crashes, loss of data, severe memory leak.
          • Stalled
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-29409 ASAN failure on long fk_id when renaming a table

          • Major - Major loss of function.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. MDEV-19191 Partial support of foreign keys in partitioned tables

          • Critical - Crashes, loss of data, severe memory leak.
          • In Review

          Bug - A problem which impairs or prevents the functions of the product. MDEV-29258 Failing assertion for name length on RENAME TABLE

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-30416 Can't redefine constraint in a single ALTER TABLE

          • Major - Major loss of function.
          • Confirmed

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              midenok Aleksey Midenkov
              lstartseva Lena Startseva
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              Dates

                Created:
                Updated:

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