diff options
Diffstat (limited to 'sql/field.h')
| -rw-r--r-- | sql/field.h | 48 |
1 files changed, 25 insertions, 23 deletions
diff --git a/sql/field.h b/sql/field.h index bb3636c654e..e1f7b8c6a29 100644 --- a/sql/field.h +++ b/sql/field.h @@ -166,22 +166,13 @@ public: table, which is located on disk). */ virtual uint32 pack_length_in_rec() const { return pack_length(); } - virtual int compatible_field_size(uint field_metadata, - const Relay_log_info *); + virtual bool compatible_field_size(uint metadata, Relay_log_info *rli, + uint16 mflags, int *order); virtual uint pack_length_from_metadata(uint field_metadata) - { return field_metadata; } - /* - This method is used to return the size of the data in a row-based - replication row record. The default implementation of returning 0 is - designed to allow fields that do not use metadata to return TRUE (1) - from compatible_field_size() which uses this function in the comparison. - The default value for field metadata for fields that do not have - metadata is 0. Thus, 0 == 0 means the fields are compatible in size. - - Note: While most classes that override this method return pack_length(), - the classes Field_string, Field_varstring, and Field_blob return - field_length + 1, field_length, and pack_length_no_ptr() respectfully. - */ + { + DBUG_ENTER("Field::pack_length_from_metadata"); + DBUG_RETURN(field_metadata); + } virtual uint row_pack_length() { return 0; } virtual int save_field_metadata(uchar *first_byte) { return do_save_field_metadata(first_byte); } @@ -619,6 +610,13 @@ public: int store_decimal(const my_decimal *); my_decimal *val_decimal(my_decimal *); uint is_equal(Create_field *new_field); + uint row_pack_length() { return pack_length(); } + uint32 pack_length_from_metadata(uint field_metadata) { + uint32 length= pack_length(); + DBUG_PRINT("result", ("pack_length_from_metadata(%d): %u", + field_metadata, length)); + return length; + } int check_int(CHARSET_INFO *cs, const char *str, int length, const char *int_end, int error); bool get_int(CHARSET_INFO *cs, const char *from, uint len, @@ -783,8 +781,8 @@ public: uint32 pack_length() const { return (uint32) bin_size; } uint pack_length_from_metadata(uint field_metadata); uint row_pack_length() { return pack_length(); } - int compatible_field_size(uint field_metadata, - const Relay_log_info *rli); + bool compatible_field_size(uint field_metadata, Relay_log_info *rli, + uint16 mflags, int *order_var); uint is_equal(Create_field *new_field); virtual const uchar *unpack(uchar* to, const uchar *from, uint param_data, bool low_byte_first); @@ -1479,9 +1477,12 @@ public: return row_pack_length(); return (((field_metadata >> 4) & 0x300) ^ 0x300) + (field_metadata & 0x00ff); } - int compatible_field_size(uint field_metadata, - const Relay_log_info *rli); - uint row_pack_length() { return (field_length + 1); } + bool compatible_field_size(uint field_metadata, Relay_log_info *rli, + uint16 mflags, int *order_var); + uint row_pack_length() { return field_length; } + int pack_cmp(const uchar *a,const uchar *b,uint key_length, + my_bool insert_or_update); + int pack_cmp(const uchar *b,uint key_length,my_bool insert_or_update); uint packed_col_length(const uchar *to, uint length); uint max_packed_col_length(uint max_length); uint size_of() const { return sizeof(*this); } @@ -1926,8 +1927,8 @@ public: uint pack_length_from_metadata(uint field_metadata); uint row_pack_length() { return (bytes_in_rec + ((bit_len > 0) ? 1 : 0)); } - int compatible_field_size(uint field_metadata, - const Relay_log_info *rli); + bool compatible_field_size(uint metadata, Relay_log_info *rli, + uint16 mflags, int *order_var); void sql_type(String &str) const; virtual uchar *pack(uchar *to, const uchar *from, uint max_length, bool low_byte_first); @@ -2030,7 +2031,8 @@ public: /* Init for a tmp table field. To be extended if need be. */ void init_for_tmp_table(enum_field_types sql_type_arg, uint32 max_length, uint32 decimals, - bool maybe_null, bool is_unsigned); + bool maybe_null, bool is_unsigned, + uint pack_length = ~0U); bool init(THD *thd, char *field_name, enum_field_types type, char *length, char *decimals, uint type_modifier, Item *default_value, |