Sergey Petrunya acc161d363 BUG#752992: Wrong results for a subquery with 'semijoin=on' ...

- Let advance_sj_state() save the value of JOIN::cur_dups_producing_tables
  in POSITION::prefix_dups_producing_tables, and restore_sj_state() restore
  it.

2011-04-08 02:12:03 +04:00

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