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-rw-r--r--sql/item_cmpfunc.cc100
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.