diff options
Diffstat (limited to 'sql/item_timefunc.h')
| -rw-r--r-- | sql/item_timefunc.h | 159 |
1 files changed, 113 insertions, 46 deletions
diff --git a/sql/item_timefunc.h b/sql/item_timefunc.h index 396b5bbb200..ca1624c9082 100644 --- a/sql/item_timefunc.h +++ b/sql/item_timefunc.h @@ -1,3 +1,6 @@ +#ifndef ITEM_TIMEFUNC_INCLUDED +#define ITEM_TIMEFUNC_INCLUDED + /* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. This program is free software; you can redistribute it and/or modify @@ -20,6 +23,8 @@ #pragma interface /* gcc class implementation */ #endif +class MY_LOCALE; + enum date_time_format_types { TIME_ONLY= 0, TIME_MICROSECOND, DATE_ONLY, DATE_TIME, DATE_TIME_MICROSECOND @@ -77,6 +82,39 @@ public: }; +class Item_func_to_seconds :public Item_int_func +{ +public: + Item_func_to_seconds(Item *a) :Item_int_func(a) {} + longlong val_int(); + const char *func_name() const { return "to_seconds"; } + void fix_length_and_dec() + { + decimals=0; + max_length=6*MY_CHARSET_BIN_MB_MAXLEN; + maybe_null=1; + } + enum_monotonicity_info get_monotonicity_info() const; + longlong val_int_endpoint(bool left_endp, bool *incl_endp); + bool check_partition_func_processor(uchar *bool_arg) { return FALSE;} + + bool intro_version(uchar *int_arg) + { + int *input_version= (int*)int_arg; + /* This function was introduced in 5.5 */ + int output_version= max(*input_version, 50500); + *input_version= output_version; + return 0; + } + + /* Only meaningful with date part and optional time part */ + bool check_valid_arguments_processor(uchar *int_arg) + { + return !has_date_args(); + } +}; + + class Item_func_dayofmonth :public Item_int_func { public: @@ -100,7 +138,7 @@ public: class Item_func_month :public Item_func { public: - Item_func_month(Item *a) :Item_func(a) {} + Item_func_month(Item *a) :Item_func(a) { collation.set_numeric(); } longlong val_int(); double val_real() { DBUG_ASSERT(fixed == 1); return (double) Item_func_month::val_int(); } @@ -109,17 +147,16 @@ public: longlong nr= val_int(); if (null_value) return 0; - str->set(nr, &my_charset_bin); + str->set(nr, collation.collation); return str; } const char *func_name() const { return "month"; } enum Item_result result_type () const { return INT_RESULT; } void fix_length_and_dec() { - collation.set(&my_charset_bin); - decimals=0; - max_length=2*MY_CHARSET_BIN_MB_MAXLEN; - maybe_null=1; + decimals= 0; + fix_char_length(2); + maybe_null= 1; } bool check_partition_func_processor(uchar *int_arg) {return FALSE;} bool check_valid_arguments_processor(uchar *int_arg) @@ -129,16 +166,19 @@ public: }; -class Item_func_monthname :public Item_func_month +class Item_func_monthname :public Item_str_func { MY_LOCALE *locale; public: - Item_func_monthname(Item *a) :Item_func_month(a) {} + Item_func_monthname(Item *a) :Item_str_func(a) {} const char *func_name() const { return "monthname"; } String *val_str(String *str); - enum Item_result result_type () const { return STRING_RESULT; } void fix_length_and_dec(); bool check_partition_func_processor(uchar *int_arg) {return TRUE;} + bool check_valid_arguments_processor(uchar *int_arg) + { + return !has_date_args(); + } }; @@ -150,9 +190,9 @@ public: const char *func_name() const { return "dayofyear"; } void fix_length_and_dec() { - decimals=0; - max_length=3*MY_CHARSET_BIN_MB_MAXLEN; - maybe_null=1; + decimals= 0; + fix_char_length(3); + maybe_null= 1; } bool check_partition_func_processor(uchar *int_arg) {return FALSE;} bool check_valid_arguments_processor(uchar *int_arg) @@ -303,7 +343,7 @@ class Item_func_weekday :public Item_func bool odbc_type; public: Item_func_weekday(Item *a,bool type_arg) - :Item_func(a), odbc_type(type_arg) {} + :Item_func(a), odbc_type(type_arg) { collation.set_numeric(); } longlong val_int(); double val_real() { DBUG_ASSERT(fixed == 1); return (double) val_int(); } String *val_str(String *str) @@ -319,10 +359,9 @@ public: enum Item_result result_type () const { return INT_RESULT; } void fix_length_and_dec() { - collation.set(&my_charset_bin); - decimals=0; - max_length=1*MY_CHARSET_BIN_MB_MAXLEN; - maybe_null=1; + decimals= 0; + fix_char_length(1); + maybe_null= 1; } bool check_partition_func_processor(uchar *int_arg) {return FALSE;} bool check_valid_arguments_processor(uchar *int_arg) @@ -401,15 +440,15 @@ public: Item_date(Item *a) :Item_func(a) {} enum Item_result result_type () const { return STRING_RESULT; } enum_field_types field_type() const { return MYSQL_TYPE_DATE; } + CHARSET_INFO *charset_for_protocol(void) const { return &my_charset_bin; } String *val_str(String *str); longlong val_int(); double val_real() { return val_real_from_decimal(); } const char *func_name() const { return "date"; } void fix_length_and_dec() { - collation.set(&my_charset_bin); - decimals=0; - max_length=MAX_DATE_WIDTH*MY_CHARSET_BIN_MB_MAXLEN; + decimals= 0; + fix_length_and_charset_datetime(MAX_DATE_WIDTH); } Field *tmp_table_field(TABLE *table) { @@ -436,6 +475,7 @@ public: Item_date_func(Item *a,Item *b) :Item_str_func(a,b) {} Item_date_func(Item *a,Item *b, Item *c) :Item_str_func(a,b,c) {} enum_field_types field_type() const { return MYSQL_TYPE_DATETIME; } + CHARSET_INFO *charset_for_protocol(void) const { return &my_charset_bin; } Field *tmp_table_field(TABLE *table) { return tmp_table_field_from_field_type(table, 0); @@ -462,10 +502,11 @@ public: Item_str_timefunc(Item *a,Item *b) :Item_str_func(a,b) {} Item_str_timefunc(Item *a, Item *b, Item *c) :Item_str_func(a, b ,c) {} enum_field_types field_type() const { return MYSQL_TYPE_TIME; } + CHARSET_INFO *charset_for_protocol(void) const { return &my_charset_bin; } void fix_length_and_dec() { decimals= DATETIME_DEC; - max_length=MAX_TIME_WIDTH*MY_CHARSET_BIN_MB_MAXLEN; + fix_length_and_charset_datetime(MAX_TIME_WIDTH); } Field *tmp_table_field(TABLE *table) { @@ -727,7 +768,6 @@ public: void fix_length_and_dec() { Item_str_timefunc::fix_length_and_dec(); - collation.set(&my_charset_bin); maybe_null=1; } const char *func_name() const { return "sec_to_time"; } @@ -739,16 +779,32 @@ class Item_date_add_interval :public Item_date_func { String value; enum_field_types cached_field_type; - + String ascii_buf; public: const interval_type int_type; // keep it public const bool date_sub_interval; // keep it public Item_date_add_interval(Item *a,Item *b,interval_type type_arg,bool neg_arg) :Item_date_func(a,b),int_type(type_arg), date_sub_interval(neg_arg) {} - String *val_str(String *); + String *val_str_ascii(String *str); + String *val_str(String *str) + { + return val_str_from_val_str_ascii(str, &ascii_buf); + } const char *func_name() const { return "date_add_interval"; } void fix_length_and_dec(); enum_field_types field_type() const { return cached_field_type; } + CHARSET_INFO *charset_for_protocol(void) const + { + /* + DATE_ADD() can return DATE, DATETIME or VARCHAR depending on arguments. + Send using "binary" when DATE or DATETIME, + or using collation.collation when VARCHAR + (which was fixed from @collation_connection in fix_length_and_dec). + */ + DBUG_ASSERT(fixed == 1); + return cached_field_type == MYSQL_TYPE_STRING ? + collation.collation : &my_charset_bin; + } longlong val_int(); bool get_date(MYSQL_TIME *res, uint fuzzy_date); bool eq(const Item *item, bool binary_cmp) const; @@ -835,13 +891,7 @@ public: class Item_typecast_maybe_null :public Item_typecast { public: - Item_typecast_maybe_null(Item *a) :Item_typecast(a) {} - void fix_length_and_dec() - { - collation.set(&my_charset_bin); - max_length=args[0]->max_length; - maybe_null= 1; - } + Item_typecast_maybe_null(Item *a) :Item_typecast(a) { maybe_null= 1; } }; @@ -874,16 +924,12 @@ public: bool get_time(MYSQL_TIME *ltime); const char *cast_type() const { return "date"; } enum_field_types field_type() const { return MYSQL_TYPE_DATE; } + CHARSET_INFO *charset_for_protocol(void) const { return &my_charset_bin; } Field *tmp_table_field(TABLE *table) { return tmp_table_field_from_field_type(table, 0); - } - void fix_length_and_dec() - { - collation.set(&my_charset_bin); - max_length= 10; - maybe_null= 1; } + void fix_length_and_dec() { fix_length_and_charset_datetime(10); } bool result_as_longlong() { return TRUE; } longlong val_int(); double val_real() { return (double) val_int(); } @@ -908,6 +954,7 @@ public: bool get_time(MYSQL_TIME *ltime); const char *cast_type() const { return "time"; } enum_field_types field_type() const { return MYSQL_TYPE_TIME; } + CHARSET_INFO *charset_for_protocol(void) const { return &my_charset_bin; } Field *tmp_table_field(TABLE *table) { return tmp_table_field_from_field_type(table, 0); @@ -924,6 +971,8 @@ public: { return save_time_in_field(field); } + void fix_length_and_dec() + { fix_length_and_charset_datetime(args[0]->max_char_length()); } }; @@ -935,15 +984,14 @@ public: String *val_str(String *str); const char *cast_type() const { return "datetime"; } enum_field_types field_type() const { return MYSQL_TYPE_DATETIME; } + CHARSET_INFO *charset_for_protocol(void) const { return &my_charset_bin; } Field *tmp_table_field(TABLE *table) { return tmp_table_field_from_field_type(table, 0); } void fix_length_and_dec() { - collation.set(&my_charset_bin); - maybe_null= 1; - max_length= MAX_DATETIME_FULL_WIDTH * MY_CHARSET_BIN_MB_MAXLEN; + fix_length_and_charset_datetime(MAX_DATETIME_FULL_WIDTH); decimals= DATETIME_DEC; } bool result_as_longlong() { return TRUE; } @@ -968,11 +1016,11 @@ public: String *val_str(String *str); const char *func_name() const { return "makedate"; } enum_field_types field_type() const { return MYSQL_TYPE_DATE; } + CHARSET_INFO *charset_for_protocol(void) const { return &my_charset_bin; } void fix_length_and_dec() { decimals=0; - max_length=MAX_DATE_WIDTH*MY_CHARSET_BIN_MB_MAXLEN; - /* It returns NULL when the second argument is less or equal to 0 */ + fix_length_and_charset_datetime(MAX_DATE_WIDTH); maybe_null= 1; } longlong val_int(); @@ -991,6 +1039,7 @@ public: String *val_str(String *str); enum_field_types field_type() const { return cached_field_type; } void fix_length_and_dec(); + CHARSET_INFO *charset_for_protocol(void) const { return &my_charset_bin; } Field *tmp_table_field(TABLE *table) { @@ -1016,6 +1065,8 @@ public: return save_date_in_field(field); return Item_str_func::save_in_field(field, no_conversions); } + longlong val_int(); + MYSQL_TIME *val_datetime(MYSQL_TIME *time, date_time_format_types *format); }; class Item_func_timediff :public Item_str_timefunc @@ -1085,20 +1136,20 @@ enum date_time_format USA_FORMAT, JIS_FORMAT, ISO_FORMAT, EUR_FORMAT, INTERNAL_FORMAT }; -class Item_func_get_format :public Item_str_func +class Item_func_get_format :public Item_str_ascii_func { public: const timestamp_type type; // keep it public Item_func_get_format(timestamp_type type_arg, Item *a) - :Item_str_func(a), type(type_arg) + :Item_str_ascii_func(a), type(type_arg) {} - String *val_str(String *str); + String *val_str_ascii(String *str); const char *func_name() const { return "get_format"; } void fix_length_and_dec() { maybe_null= 1; decimals=0; - max_length=17*MY_CHARSET_BIN_MB_MAXLEN; + fix_length_and_charset(17, default_charset()); } virtual void print(String *str, enum_query_type query_type); }; @@ -1110,6 +1161,7 @@ class Item_func_str_to_date :public Item_str_func date_time_format_types cached_format_type; timestamp_type cached_timestamp_type; bool const_item; + ulonglong sql_mode; public: Item_func_str_to_date(Item *a, Item *b) :Item_str_func(a, b), const_item(false) @@ -1123,6 +1175,8 @@ public: { return tmp_table_field_from_field_type(table, 1); } + longlong val_int(); + bool result_as_longlong() { return TRUE; } }; @@ -1132,4 +1186,17 @@ public: Item_func_last_day(Item *a) :Item_date(a) {} const char *func_name() const { return "last_day"; } bool get_date(MYSQL_TIME *res, uint fuzzy_date); + void fix_length_and_dec() + { + Item_date::fix_length_and_dec(); + maybe_null= 1; + } }; + + +/* Function prototypes */ + +bool make_date_time(DATE_TIME_FORMAT *format, MYSQL_TIME *l_time, + timestamp_type type, String *str); + +#endif /* ITEM_TIMEFUNC_INCLUDED */ |