diff options
Diffstat (limited to 'sql/item.cc')
| -rw-r--r-- | sql/item.cc | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/sql/item.cc b/sql/item.cc index d630ca7bc60..f74d8df1045 100644 --- a/sql/item.cc +++ b/sql/item.cc @@ -1,4 +1,4 @@ -/* Copyright (C) 2000-2006 MySQL AB +/* Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -325,7 +325,7 @@ int Item::save_time_in_field(Field *field) { MYSQL_TIME ltime; if (get_time(<ime)) - return set_field_to_null(field); + return set_field_to_null_with_conversions(field, 0); field->set_notnull(); return field->store_time(<ime, MYSQL_TIMESTAMP_TIME); } @@ -335,7 +335,7 @@ int Item::save_date_in_field(Field *field) { MYSQL_TIME ltime; if (get_date(<ime, TIME_FUZZY_DATE)) - return set_field_to_null(field); + return set_field_to_null_with_conversions(field, 0); field->set_notnull(); return field->store_time(<ime, MYSQL_TIMESTAMP_DATETIME); } @@ -2086,6 +2086,12 @@ bool Item_field::val_bool_result() } +bool Item_field::is_null_result() +{ + return (null_value=result_field->is_null()); +} + + bool Item_field::eq(const Item *item, bool binary_cmp) const { Item *real_item= ((Item *) item)->real_item(); @@ -2624,7 +2630,7 @@ void Item_param::set_time(MYSQL_TIME *tm, timestamp_type time_type, if (value.time.year > 9999 || value.time.month > 12 || value.time.day > 31 || - time_type != MYSQL_TIMESTAMP_TIME && value.time.hour > 23 || + (time_type != MYSQL_TIMESTAMP_TIME && value.time.hour > 23) || value.time.minute > 59 || value.time.second > 59) { char buff[MAX_DATE_STRING_REP_LENGTH]; @@ -4836,8 +4842,8 @@ int Item::save_in_field(Field *field, bool no_conversions) { int error; if (result_type() == STRING_RESULT || - result_type() == REAL_RESULT && - field->result_type() == STRING_RESULT) + (result_type() == REAL_RESULT && + field->result_type() == STRING_RESULT)) { String *result; CHARSET_INFO *cs= collation.collation; @@ -5110,6 +5116,9 @@ int Item_hex_string::save_in_field(Field *field, bool no_conversions) ulonglong nr; uint32 length= str_value.length(); + if (!length) + return 1; + if (length > 8) { nr= field->flags & UNSIGNED_FLAG ? ULONGLONG_MAX : LONGLONG_MAX; @@ -5793,6 +5802,15 @@ double Item_ref::val_result() } +bool Item_ref::is_null_result() +{ + if (result_field) + return (null_value=result_field->is_null()); + + return is_null(); +} + + longlong Item_ref::val_int_result() { if (result_field) @@ -5898,7 +5916,9 @@ String *Item_ref::val_str(String* tmp) bool Item_ref::is_null() { DBUG_ASSERT(fixed); - return (*ref)->is_null(); + bool tmp=(*ref)->is_null_result(); + null_value=(*ref)->null_value; + return tmp; } |