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  1. 28 Jul, 2006 1 commit
    • sergefp@mysql.com's avatar
      BUG#14940 "MySQL choose wrong index", v.2 · 699291a8
      sergefp@mysql.com authored
      - Make the range-et-al optimizer produce E(#table records after table 
                                                 condition is applied),
      - Make the join optimizer use this value,
      - Add "filtered" column to EXPLAIN EXTENDED to show 
        fraction of records left after table condition is applied
      - Adjust test results, add comments
      699291a8
  2. 22 Feb, 2005 1 commit
  3. 05 Dec, 2004 1 commit
  4. 11 Aug, 2004 1 commit
  5. 28 May, 2004 1 commit
    • sergefp@mysql.com's avatar
      * New index_merge EXPLAIN output format · dff98a8e
      sergefp@mysql.com authored
       * Fixed a problem with wrong query results for partially covering keys in ROR-index_merge
       * ROR-intersection retrieval plan choice algorithm now uses less disk IO
         - and properly processes clustered PK range scans 
       * Fixed several minor range optimizer problems
       * Added more comments
       * Code cleanup
      dff98a8e
  6. 12 May, 2004 1 commit