diff options
Diffstat (limited to 'sql/item_cmpfunc.cc')
-rw-r--r-- | sql/item_cmpfunc.cc | 100 |
1 files changed, 63 insertions, 37 deletions
diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc index c29031d25b5..9fc52bb8876 100644 --- a/sql/item_cmpfunc.cc +++ b/sql/item_cmpfunc.cc @@ -636,56 +636,51 @@ int Arg_comparator::set_compare_func(Item_bool_func2 *item, Item_result type) return 0; } - /** - @brief Convert date provided in a string to the int representation. - - @param[in] thd thread handle - @param[in] str a string to convert - @param[in] warn_type type of the timestamp for issuing the warning - @param[in] warn_name field name for issuing the warning - @param[out] error_arg could not extract a DATE or DATETIME - - @details Convert date provided in the string str to the int - representation. If the string contains wrong date or doesn't - contain it at all then a warning is issued. The warn_type and - the warn_name arguments are used as the name and the type of the - field when issuing the warning. If any input was discarded - (trailing or non-timestampy characters), was_cut will be non-zero. - was_type will return the type str_to_datetime() could correctly - extract. - - @return - converted value. 0 on error and on zero-dates -- check 'failure' + Parse date provided in a string to a MYSQL_TIME. + + @param[in] thd Thread handle + @param[in] str A string to convert + @param[in] warn_type Type of the timestamp for issuing the warning + @param[in] warn_name Field name for issuing the warning + @param[out] l_time The MYSQL_TIME objects is initialized. + + Parses a date provided in the string str into a MYSQL_TIME object. If the + string contains an incorrect date or doesn't correspond to a date at all + then a warning is issued. The warn_type and the warn_name arguments are used + as the name and the type of the field when issuing the warning. If any input + was discarded (trailing or non-timestamp-y characters), return value will be + TRUE. + + @return Status flag + @retval FALSE Success. + @retval True Indicates failure. */ -static ulonglong -get_date_from_str(THD *thd, String *str, timestamp_type warn_type, - char *warn_name, bool *error_arg) +bool get_mysql_time_from_str(THD *thd, String *str, timestamp_type warn_type, + const char *warn_name, MYSQL_TIME *l_time) { - ulonglong value= 0; + bool value; int error; - MYSQL_TIME l_time; - enum_mysql_timestamp_type ret; + enum_mysql_timestamp_type timestamp_type; - ret= str_to_datetime(str->ptr(), str->length(), &l_time, - (TIME_FUZZY_DATE | MODE_INVALID_DATES | - (thd->variables.sql_mode & - (MODE_NO_ZERO_IN_DATE | MODE_NO_ZERO_DATE))), - &error); + timestamp_type= + str_to_datetime(str->ptr(), str->length(), l_time, + (TIME_FUZZY_DATE | MODE_INVALID_DATES | + (thd->variables.sql_mode & + (MODE_NO_ZERO_IN_DATE | MODE_NO_ZERO_DATE))), + &error); - if (ret == MYSQL_TIMESTAMP_DATETIME || ret == MYSQL_TIMESTAMP_DATE) - { + if (timestamp_type == MYSQL_TIMESTAMP_DATETIME || + timestamp_type == MYSQL_TIMESTAMP_DATE) /* Do not return yet, we may still want to throw a "trailing garbage" warning. */ - *error_arg= FALSE; - value= TIME_to_ulonglong_datetime(&l_time); - } + value= FALSE; else { - *error_arg= TRUE; + value= TRUE; error= 1; /* force warning */ } @@ -698,6 +693,37 @@ get_date_from_str(THD *thd, String *str, timestamp_type warn_type, } +/** + @brief Convert date provided in a string to the int representation. + + @param[in] thd thread handle + @param[in] str a string to convert + @param[in] warn_type type of the timestamp for issuing the warning + @param[in] warn_name field name for issuing the warning + @param[out] error_arg could not extract a DATE or DATETIME + + @details Convert date provided in the string str to the int + representation. If the string contains wrong date or doesn't + contain it at all then a warning is issued. The warn_type and + the warn_name arguments are used as the name and the type of the + field when issuing the warning. + + @return + converted value. 0 on error and on zero-dates -- check 'failure' +*/ +static ulonglong get_date_from_str(THD *thd, String *str, + timestamp_type warn_type, + const char *warn_name, bool *error_arg) +{ + MYSQL_TIME l_time; + *error_arg= get_mysql_time_from_str(thd, str, warn_type, warn_name, &l_time); + + if (*error_arg) + return 0; + return TIME_to_ulonglong_datetime(&l_time); +} + + /* Check whether compare_datetime() can be used to compare items. |