• 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
cast.result 12.2 KB