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  1. 28 Apr, 2006 6 commits
    • kent@mysql.com's avatar
      Merge kboortz@bk-internal.mysql.com:/home/bk/mysql-5.0 · 0222a313
      kent@mysql.com authored
      into mysql.com:/Users/kent/mysql/bk/mysql-5.0-new
      0222a313
    • kent@mysql.com's avatar
      mysql.spec.sh: · 50e8ba04
      kent@mysql.com authored
        Include and run mysql_upgrade if needed (bug#19353)
      50e8ba04
    • gkodinov@lsmy3.wdf.sap.corp's avatar
      Merge lsmy3.wdf.sap.corp:/data/users/gkodinov/mysql-4.1-B18492 · 6e5cf86f
      gkodinov@lsmy3.wdf.sap.corp authored
      into  lsmy3.wdf.sap.corp:/data/users/gkodinov/mysql-5.0-B18492
      6e5cf86f
    • gkodinov@lsmy3.wdf.sap.corp's avatar
      BUG#18492: mysqld reports ER_ILLEGAL_REFERENCE in --ps-protocol · ca793433
      gkodinov@lsmy3.wdf.sap.corp authored
      In the code that converts IN predicates to EXISTS predicates it is changing
      the select list elements to constant 1. Example :
      SELECT ... FROM ...  WHERE a IN (SELECT c FROM ...)
      is transformed to :
      SELECT ... FROM ... WHERE EXISTS (SELECT 1 FROM ...  HAVING a = c)
      However there can be no FROM clause in the IN subquery and it may not be
      a simple select : SELECT ... FROM ... WHERE a IN (SELECT f(..) AS
      c UNION SELECT ...) This query is transformed to : SELECT ... FROM ...
      WHERE EXISTS (SELECT 1 FROM (SELECT f(..) AS c UNION SELECT ...)
      x HAVING a = c) In the above query c in the HAVING clause is made to be
      an Item_null_helper (a subclass of Item_ref) pointing to the real
      Item_field (which is not referenced anywhere else in the query anymore).
      This is done because Item_ref_null_helper collects information whether
      there are NULL values in the result.  This is OK for directly executed
      statements, because the Item_field pointed by the Item_null_helper is
      already fixed when the transformation is done.  But when executed as
      a prepared statement all the Item instances are "un-fixed" before the
      recompilation of the prepared statement. So when the Item_null_helper
      gets fixed it discovers that the Item_field it points to is not fixed
      and issues an error.  The remedy is to keep the original select list
      references when there are no tables in the FROM clause. So the above
      becomes : SELECT ... FROM ...  WHERE EXISTS (SELECT c FROM (SELECT f(..)
      AS c UNION SELECT ...) x HAVING a = c) In this way c is referenced
      directly in the select list as well as by reference in the HAVING
      clause. So it gets correctly fixed even with prepared statements.  And
      since the Item_null_helper subclass of Item_ref_null_helper is not used
      anywhere else it's taken out.
      ca793433
    • holyfoot@mysql.com's avatar
      Merge abotchkov@bk-internal.mysql.com:/home/bk/mysql-5.0 · 059e2f70
      holyfoot@mysql.com authored
      into mysql.com:/home/hf/work/mysql-5.0.upgd
      059e2f70
    • holyfoot@deer.(none)'s avatar
      bug #18115 (mysql_upgrade on Windows) · 5a75f865
      holyfoot@deer.(none) authored
      pushed in 5.0
      5a75f865
  2. 27 Apr, 2006 16 commits
  3. 26 Apr, 2006 18 commits