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Viewing changes to drizzled/item/cmpfunc.h

  • Committer: Brian Aker
  • Date: 2011-01-22 07:20:17 UTC
  • mfrom: (2098.3.4 timestamp)
  • Revision ID: brian@tangent.org-20110122072017-1y8v3z1z3v9ml6tb
Merge in timestamp.

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drizzled/item/cmpfunc.h
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typedef int (*Item_field_cmpfunc)(Item_field *f1, Item_field *f2, void *arg);
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uint64_t get_datetime_value(Session *session, 
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                            Item ***item_arg, 
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                            Item **cache_arg,
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                            Item *warn_item, 
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                            bool *is_null);
 
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int64_t get_datetime_value(Session *session, 
 
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                           Item ***item_arg, 
 
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                           Item **cache_arg,
 
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                           Item *warn_item, 
 
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                           bool *is_null);
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class Arg_comparator: public memory::SqlAlloc
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{
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  bool is_nulls_eq;                // TRUE <=> compare for the EQUAL_FUNC
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  enum enum_date_cmp_type { CMP_DATE_DFLT= 0, CMP_DATE_WITH_DATE,
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                            CMP_DATE_WITH_STR, CMP_STR_WITH_DATE };
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  uint64_t (*get_value_func)(Session *session, Item ***item_arg, Item **cache_arg,
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                              Item *warn_item, bool *is_null);
 
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  int64_t (*get_value_func)(Session *session, Item ***item_arg, Item **cache_arg,
 
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                            Item *warn_item, bool *is_null);
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public:
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  DTCollation cmp_collation;
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  int compare_datetime();        // compare args[0] & args[1] as DATETIMEs
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  static enum enum_date_cmp_type can_compare_as_dates(Item *a, Item *b,
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                                                      uint64_t *const_val_arg);
 
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                                                      int64_t *const_val_arg);
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  void set_datetime_cmp_func(Item **a1, Item **b1);
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  static arg_cmp_func comparator_matrix [5][2];
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*/
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class cmp_item_datetime :public cmp_item
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{
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  uint64_t value;
 
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  int64_t value;
 
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public:
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  Session *session;
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  /* Item used for issuing warnings. */