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MWL#106: Backport optimizations for derived tables and views.

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The main consolidated patch.
This commit is contained in:
Igor Babaev 2010-05-26 13:18:18 -07:00
commit 709a0a1310
70 changed files with 4206 additions and 917 deletions
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4
sql/item_cmpfunc.h
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@ -631,6 +631,7 @@ public:
bool is_bool_func() { return 1; }
CHARSET_INFO *compare_collation() { return cmp_collation.collation; }
uint decimal_precision() const { return 1; }
bool eval_not_null_tables(uchar *opt_arg);
};
@ -730,6 +731,7 @@ public:
void fix_length_and_dec();
uint decimal_precision() const;
const char *func_name() const { return "if"; }
bool eval_not_null_tables(uchar *opt_arg);
};
@ -1256,6 +1258,7 @@ public:
bool nulls_in_row();
bool is_bool_func() { return 1; }
CHARSET_INFO *compare_collation() { return cmp_collation.collation; }
bool eval_not_null_tables(uchar *opt_arg);
};
class cmp_item_row :public cmp_item
@ -1510,6 +1513,7 @@ public:
bool subst_argument_checker(uchar **arg) { return TRUE; }
Item *compile(Item_analyzer analyzer, uchar **arg_p,
Item_transformer transformer, uchar *arg_t);
bool eval_not_null_tables(uchar *opt_arg);
};