• unknown's avatar
    BUG#21477 "memory overruns for certain kinds of subqueries": · dd6dc7ad
    unknown authored
    make st_select_lex::setup_ref_array() take into account that 
    Item_sum-descendant objects located within descendant SELECTs
    may be added into ref_pointer_array.
    
    
    sql/item_sum.cc:
      BUG#21477 "memory overruns for certain kinds of subqueries":
      Make SELECT_LEX::n_sum_items contain # of Item_sum-derived objects
      that exist within this SELECT.
    sql/sql_lex.h:
      BUG#21477 "memory overruns for certain kinds of subqueries":
      Add SELECT_LEX::n_sum_items and SELECT_LEXT::n_child_sum_items.
    sql/sql_yacc.yy:
      BUG#21477 "memory overruns for certain kinds of subqueries":
      Make SELECT_LEX::n_sum_items contain # of Item_sum-derived objects
      that exist within this SELECT.
    dd6dc7ad
item_sum.cc 83 KB