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00020
00021 #pragma once
00022
00023 #include <drizzled/field/str.h>
00024
00025 namespace drizzled
00026 {
00027
00028 namespace field
00029 {
00030
00031 class TableShare;
00032 typedef struct charset_info_st CHARSET_INFO;
00033
00034 class Epoch :public Field_str {
00035 public:
00036
00037 typedef Epoch* pointer;
00038
00039 Epoch(unsigned char *ptr_arg,
00040 unsigned char *null_ptr_arg,
00041 unsigned char null_bit_arg,
00042 enum utype unireg_check_arg,
00043 const char *field_name_arg,
00044 drizzled::TableShare *share);
00045
00046 Epoch(bool maybe_null_arg,
00047 const char *field_name_arg);
00048
00049 enum_field_types type() const { return DRIZZLE_TYPE_TIMESTAMP;}
00050 enum ha_base_keytype key_type() const { return HA_KEYTYPE_ULONGLONG; }
00051 enum Item_result cmp_type () const { return INT_RESULT; }
00052
00053 int store(const char *to,uint32_t length,
00054 const CHARSET_INFO * const charset);
00055 int store(double nr);
00056 int store(int64_t nr, bool unsigned_val);
00057 int store_decimal(const type::Decimal *value);
00058
00059 int reset(void) { ptr[0]=ptr[1]=ptr[2]=ptr[3]=ptr[4]=ptr[5]=ptr[6]=ptr[7]=0; return 0; }
00060 double val_real(void) const;
00061 int64_t val_int(void) const;
00062 String *val_str(String*,String *) const;
00063 int cmp(const unsigned char *,const unsigned char *);
00064 void sort_string(unsigned char *buff,uint32_t length);
00065 uint32_t pack_length() const { return 8; }
00066 virtual void sql_type(String &str) const;
00067 virtual bool can_be_compared_as_int64_t() const { return true; }
00068 bool zero_pack() const { return 0; }
00069 virtual void set_time();
00070 virtual void set_default();
00071
00072
00073 virtual long get_timestamp(bool *null_value) const;
00074
00075 virtual bool is_timestamp() const
00076 {
00077 return true;
00078 }
00079
00080 private:
00081 bool get_date(type::Time <ime,uint32_t fuzzydate) const;
00082 bool get_time(type::Time <ime) const;
00083
00084 public:
00085 virtual timestamp_auto_set_type get_auto_set_type() const;
00086 static size_t max_string_length();
00087 };
00088
00089 }
00090 }
00091
00092