Item_result_field Class Reference

#include <item.h>

Inheritance diagram for Item_result_field:

[legend]Collaboration diagram for Item_result_field:

[legend]List of all members.

Public Member Functions
	Item_result_field ()
	Item_result_field (THD *thd, Item_result_field *item)
	~Item_result_field ()
Field *	get_tmp_table_field ()
Field *	tmp_table_field (TABLE *t_arg)
table_map	used_tables () const
virtual void	fix_length_and_dec ()=0
void	set_result_field (Field *field)
bool	is_result_field ()
void	save_in_result_field (bool no_conversions)
void	cleanup ()
Public Attributes
Field *	result_field

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Constructor & Destructor Documentation

Item_result_field::Item_result_field (   )  [inline]

:result_field(0) {}

Item_result_field::Item_result_field (  THD *  thd, Item_result_field *  item )  [inline]

00985 : 00986 Item(thd, item), result_field(item->result_field) 00987 {} ~Item_result_field() {} /* Required with gcc 2.95 */

Item_result_field::~Item_result_field (   )  [inline]

{} /* Required with gcc 2.95 */

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Member Function Documentation

void Item_result_field::cleanup (   )  [virtual]

Reimplemented from Item. Reimplemented in Item_in_optimizer, Item_func_in, Item_func_match, Item_subselect, Item_singlerow_subselect, Item_sum_count, Item_sum_count_distinct, Item_sum_hybrid, and Item_func_group_concat. { DBUG_ENTER("Item_result_field::cleanup()"); Item::cleanup(); result_field= 0; DBUG_VOID_RETURN; }

virtual void Item_result_field::fix_length_and_dec (   )  [pure virtual]

Implemented in Item_bool_func, Item_bool_func2, Item_func_equal, Item_func_between, Item_func_interval, Item_func_ifnull, Item_func_if, Item_func_nullif, Item_func_coalesce, Item_func_case, Item_func_in, Item_func_isnull, Item_func_isnotnull, Item_equal, Item_real_func, Item_num_func, Item_num_op, Item_int_func, Item_func_signed, Item_func_unsigned, Item_func_minus, Item_func_div, Item_func_int_div, Item_func_mod, Item_func_neg, Item_func_abs, Item_dec_func, Item_func_integer, Item_func_round, Item_func_units, Item_func_min_max, Item_func_length, Item_func_char_length, Item_func_coercibility, Item_func_locate, Item_func_field, Item_func_ascii, Item_func_find_in_set, Item_func_bit, Item_func_bit_count, Item_func_last_insert_id, Item_func_benchmark, Item_func_udf_str, Item_func_get_lock, Item_func_release_lock, Item_master_pos_wait, Item_func_set_user_var, Item_func_get_user_var, Item_func_inet_aton, Item_func_is_free_lock, Item_func_is_used_lock, Item_func_row_count, Item_func_sp, Item_func_found_rows, Item_func_md5, Item_func_sha, Item_func_aes_encrypt, Item_func_aes_decrypt, Item_func_concat, Item_func_concat_ws, Item_func_reverse, Item_func_replace, Item_func_insert, Item_str_conv, Item_func_left, Item_func_right, Item_func_substr, Item_func_substr_index, Item_func_trim, Item_func_password, Item_func_old_password, Item_func_des_encrypt, Item_func_des_decrypt, Item_func_encrypt, Item_func_encode, Item_func_database, Item_func_user, Item_func_soundex, Item_func_elt, Item_func_make_set, Item_func_format, Item_func_char, Item_func_repeat, Item_func_rpad, Item_func_lpad, Item_func_conv, Item_func_hex, Item_func_unhex, Item_func_binary, Item_load_file, Item_func_export_set, Item_func_inet_ntoa, Item_func_quote, Item_func_conv_charset, Item_func_set_collation, Item_func_charset, Item_func_collation, Item_func_crc32, Item_func_uncompressed_length, Item_func_compress, Item_func_uncompress, Item_func_uuid, Item_subselect, Item_singlerow_subselect, Item_exists_subselect, Item_sum, Item_sum_int, Item_sum_sum, Item_avg_field, Item_sum_avg, Item_variance_field, Item_sum_variance, Item_sum_bit, Item_sum_udf_str, Item_func_period_add, Item_func_period_diff, Item_func_to_days, Item_func_dayofmonth, Item_func_month, Item_func_monthname, Item_func_dayofyear, Item_func_hour, Item_func_minute, Item_func_quarter, Item_func_second, Item_func_week, Item_func_yearweek, Item_func_year, Item_func_weekday, Item_func_dayname, Item_func_unix_timestamp, Item_func_time_to_sec, Item_date, Item_func_curtime, Item_func_curdate, Item_func_now, Item_func_date_format, Item_func_from_unixtime, Item_func_convert_tz, Item_func_sec_to_time, Item_date_add_interval, Item_extract, Item_typecast, Item_typecast_maybe_null, Item_char_typecast, Item_func_makedate, Item_func_add_time, Item_func_timediff, Item_func_maketime, Item_func_microsecond, Item_func_timestamp_diff, Item_func_get_format, Item_func_str_to_date, and Item_func_unique_users.

Field* Item_result_field::get_tmp_table_field (   )  [inline, virtual]

Reimplemented from Item. { return result_field; }

bool Item_result_field::is_result_field (   )  [inline, virtual]

Reimplemented from Item. { return 1; }

void Item_result_field::save_in_result_field (  bool  no_conversions  )  [inline, virtual]

Reimplemented from Item. { save_in_field(result_field, no_conversions); }

void Item_result_field::set_result_field (  Field *  field  )  [inline, virtual]

Reimplemented from Item. { result_field= field; }

Field* Item_result_field::tmp_table_field (  TABLE *  t_arg  )  [inline, virtual]

Reimplemented from Item. Reimplemented in Item_func_ifnull, Item_func, Item_date, Item_date_func, Item_func_curtime, Item_func_sec_to_time, Item_date_typecast, Item_time_typecast, Item_datetime_typecast, Item_func_makedate, Item_func_add_time, Item_func_timediff, Item_func_maketime, and Item_func_str_to_date. { return result_field; }

table_map Item_result_field::used_tables (   )  const [inline, virtual]

Reimplemented from Item. Reimplemented in Item_cond, Item_func, Item_func_get_user_var, Item_subselect, Item_sum, Item_sum_count, Item_sum_count_distinct, and Item_sum_hybrid. { return 1; }

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Member Data Documentation

Field* Item_result_field::result_field

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The documentation for this class was generated from the following files:

• /root/mysql-5.0.2-alpha/sql/item.h
• /root/mysql-5.0.2-alpha/libmysqld/item.cc
• /root/mysql-5.0.2-alpha/sql/item.cc

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