diff options
Diffstat (limited to 'sql/item.h')
| -rw-r--r-- | sql/item.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sql/item.h b/sql/item.h index d8991567250..004a56e7371 100644 --- a/sql/item.h +++ b/sql/item.h @@ -761,7 +761,8 @@ enum class item_with_t : item_flags_t WINDOW_FUNC= (1<<1), // If item contains a window func FIELD= (1<<2), // If any item except Item_sum contains a field. SUM_FUNC= (1<<3), // If item contains a sum func - SUBQUERY= (1<<4) // If item containts a sub query + SUBQUERY= (1<<4), // If item containts a sub query + ROWNUM_FUNC= (1<<5) }; @@ -1059,6 +1060,8 @@ public: { return (bool) (with_flags & item_with_t::SUM_FUNC); } inline bool with_subquery() const { return (bool) (with_flags & item_with_t::SUBQUERY); } + inline bool with_rownum_func() const + { return (bool) (with_flags & item_with_t::ROWNUM_FUNC); } inline void copy_flags(const Item *org, item_base_t mask) { base_flags= (item_base_t) (((item_flags_t) base_flags & @@ -1131,7 +1134,7 @@ public: return fix_fields_if_needed_for_scalar(thd, ref); } /* - By default we assume that an Item is fixed by the contstructor. + By default we assume that an Item is fixed by the constructor */ virtual bool fix_fields(THD *, Item **) { @@ -1159,6 +1162,12 @@ public: {}; /* + This is for items that require a fixup after the JOIN::prepare() + is done. + */ + virtual void fix_after_optimize(THD *thd) + {} + /* This method should be used in case where we are sure that we do not need complete fix_fields() procedure. Usually this method is used by the optimizer when it has to create a new @@ -2259,6 +2268,7 @@ public: { return mark_unsupported_function(full_name(), arg, VCOL_IMPOSSIBLE); } + virtual bool check_handler_func_processor(void *arg) { return 0; } virtual bool check_field_expression_processor(void *arg) { return 0; } virtual bool check_func_default_processor(void *arg) { return 0; } /* |