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  1. 07 Sep, 2003 1 commit
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  10. 07 Jul, 2003 2 commits
  11. 02 Jul, 2003 2 commits
    • bell@sanja.is.com.ua's avatar
      (SCRUM) · 28207ede
      bell@sanja.is.com.ua authored
      It looks like samll revolution in SELECT_LEX tree, but it was only natural way to solve problem with name resolution of external fields inside subselect which belongs to global order of union
      also it have following advantages:
       - removed mess with current_select type conversion
         - type checking/converting
         - a lot of virtual methods
       - fake select for union execution allocated only once (it was allocated for every subselect with union executing)
      
      changes:
      fixed bug with outer fields name resolution of subqueries which belong to global ORDER BY clause
      remuved select_lex() function, now thd->lex.current_select always have type SELECT_LEX
      new SELECT_LEX (fake_select_lex) will be allocated in case of UNION for using in UNION processing
      fake_select_lex allocated for union hold global ORDER BY & LIMIT clauses and have linkage equal to GLOBAL_OPTIONS_TYPE 
      new description of SELECT_LEX tree
      
      (SCRUM)
      28207ede
    • bell@sanja.is.com.ua's avatar
      Item tree iterator · 2ae8a00b
      bell@sanja.is.com.ua authored
      fixed dependence of items from reduced subquery
      (SCRUM)
      2ae8a00b
  12. 01 Jul, 2003 1 commit
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    • bar@bar.mysql.r18.ru's avatar
      Strings which appear without charset context, · 48cdd978
      bar@bar.mysql.r18.ru authored
      like number-to-string-convertion-result, now 
      takes current database character set, instead of
      thread character set. This makes it easy to be
      SQL99 conformant and 4.0 compatible.
      
      Item->thd_charset() is renamed to Item->default_charset()
      as old name doesn't describe its nature anymore.
      48cdd978
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