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Commit 299fc6a9 authored by unknown's avatar unknown
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Scrum task 835 - text-to-datetime conversion function

parent d6f15e9d
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Showing with 1650 additions and 495 deletions
mysql-test/r/date_formats.result 0 → 100644
View file @ 299fc6a9
SHOW GLOBAL VARIABLES LIKE "%_format%";
Variable_name Value
date_format %d.%m.%Y
datetime_format %Y/%d/%m-%H:%i:%s
default_week_format 0
time_format %H.%i.%s
SHOW SESSION VARIABLES LIKE "%_format%";
Variable_name Value
date_format %d.%m.%Y
datetime_format %Y/%d/%m-%H:%i:%s
default_week_format 0
time_format %H.%i.%s
SET date_format="%d.%m.%Y";
select CAST("01.01.2001" as DATE) as a;
a
01.01.2001
SET datetime_format="%d.%m.%Y %H.%i.%s";
select CAST("01.01.2001 05.12.06" as DATETIME) as a;
a
01.01.2001 05.12.06
SET time_format="%H.%i.%s";
select CAST("05.12.06" as TIME) as a;
a
05.12.06
SET datetime_format="%d.%m.%Y %h:%i:%s %p";
select CAST("01.01.2001 05:12:06AM" as DATETIME) as a;
a
01.01.2001 05:12:06 AM
select CAST("01.01.2001 05:12:06 PM" as DATETIME) as a;
a
01.01.2001 05:12:06 PM
SET time_format="%h:%i:%s %p";
select CAST("05:12:06 AM" as TIME) as a;
a
05:12:06 AM
select CAST("05:12:06.1234PM" as TIME) as a;
a
05:12:06.001234 PM
SET time_format="%h.%i.%s %p";
SET date_format='%d.%m.%y';
SET datetime_format="%d.%m.%y %h.%i.%s %p";
select CAST("12-12-06" as DATE) as a;
a
12.12.06
select adddate("01.01.97 11.59.59.000001 PM", 10);
adddate("01.01.97 11.59.59.000001 PM", 10)
11.01.97 11.59.59.000001 PM
select datediff("31.12.97 11.59:59.000001 PM","01.01.98");
datediff("31.12.97 11.59:59.000001 PM","01.01.98")
-1
select weekofyear("31.11.97 11:59:59.000001 PM");
weekofyear("31.11.97 11:59:59.000001 PM")
49
select makedate(1997,1);
makedate(1997,1)
01.01.97
select addtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002");
addtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002")
02.01.98 01.01.01.000001 AM
select maketime(23,11,12);
maketime(23,11,12)
11.11.12 PM
select timediff("01.01.97 11:59:59.000001 PM","31.12.95 11:59:59.000002 PM");
timediff("01.01.97 11:59:59.000001 PM","31.12.95 11:59:59.000002 PM")
8795.59.59.999999 PM
SET time_format="%H%i%s";
SET time_format="%h%i%s";
ERROR HY000: Unknown error
SET date_format='%d.%m.%d';
ERROR HY000: Unknown error
SET datetime_format="%d.%m.%y %h.%i.%s";
ERROR HY000: Unknown error
SET GLOBAL date_format=default;
SHOW GLOBAL VARIABLES LIKE "date_format%";
Variable_name Value
date_format %d.%m.%Y
SET GLOBAL time_format=default;
SHOW GLOBAL VARIABLES LIKE "time_format%";
Variable_name Value
time_format %H.%i.%s
SET GLOBAL datetime_format=default;
SHOW GLOBAL VARIABLES LIKE "datetime_format%";
Variable_name Value
datetime_format %Y/%d/%m-%H:%i:%s
SET date_format=default;
SHOW SESSION VARIABLES LIKE "date_format%";
Variable_name Value
date_format %d.%m.%Y
SET time_format=default;
SHOW SESSION VARIABLES LIKE "time_format%";
Variable_name Value
time_format %H.%i.%s
SET datetime_format=default;
SHOW SESSION VARIABLES LIKE "datetime_format%";
Variable_name Value
datetime_format %Y/%d/%m-%H:%i:%s
SET time_format='%i:%s:%H';
select cast(str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S") as TIME);
cast(str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S") as TIME)
59:59:12
SET GLOBAL date_format='%Y-%m-%d';
SET GLOBAL time_format='%H:%i:%s';
SET GLOBAL datetime_format='%Y-%m-%d %H:%i:%s';
SET date_format='%Y-%m-%d';
SET time_format='%H:%i:%s';
SET datetime_format='%Y-%m-%d %H:%i:%s';
select str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S");
str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S")
2001-01-15 12:59:59
select str_to_date("15 September 2001", "%d %M %Y");
str_to_date("15 September 2001", "%d %M %Y")
2001-09-15 00:00:00
select str_to_date("15 Septembeb 2001", "%d %M %Y");
str_to_date("15 Septembeb 2001", "%d %M %Y")
NULL
select str_to_date("15 MAY 2001", "%d %b %Y");
str_to_date("15 MAY 2001", "%d %b %Y")
2001-05-15 00:00:00
select str_to_date("Sunday 15 MAY 2001", "%W %d %b %Y");
str_to_date("Sunday 15 MAY 2001", "%W %d %b %Y")
2001-05-15 00:00:00
select str_to_date("Sundai 15 MAY 2001", "%W %d %b %Y");
str_to_date("Sundai 15 MAY 2001", "%W %d %b %Y")
NULL
select str_to_date("Sundai 15 MA", "%W %d %b %Y");
str_to_date("Sundai 15 MA", "%W %d %b %Y")
NULL
select str_to_date("Tuesday 52 2001", "%W %V %X");
str_to_date("Tuesday 52 2001", "%W %V %X")
NULL
select str_to_date("Sunday 01 2001", "%W %V %X");
str_to_date("Sunday 01 2001", "%W %V %X")
NULL
select str_to_date("Tuesday 00 2002", "%W %U %Y");
str_to_date("Tuesday 00 2002", "%W %U %Y")
2002-01-01 00:00:00
select str_to_date("Thursday 53 1998", "%W %u %Y");
str_to_date("Thursday 53 1998", "%W %u %Y")
1998-12-31 00:00:00
select str_to_date("15-01-2001", "%d-%m-%Y %H:%i:%S");
str_to_date("15-01-2001", "%d-%m-%Y %H:%i:%S")
2001-01-15 00:00:00
select str_to_date("15-01-20", "%d-%m-%Y");
str_to_date("15-01-20", "%d-%m-%Y")
NULL
select str_to_date("15-2001-1", "%d-%Y-%c");
str_to_date("15-2001-1", "%d-%Y-%c")
2001-01-15 00:00:00
select get_format(DATE, 'USA') as a;
a
%m.%d.%Y
select get_format(TIME, 'internal') as a;
a
%H%i%s
select get_format(DATETIME, 'eur') as a;
a
%Y-%m-%d-%H.%i.%s
mysql-test/t/date_formats-master.opt 0 → 100644
View file @ 299fc6a9
--date_format=%d.%m.%Y --time_format=%H.%i.%s --datetime_format=%Y/%d/%m-%H:%i:%s
mysql-test/t/date_formats.test 0 → 100644
View file @ 299fc6a9
SHOW GLOBAL VARIABLES LIKE "%_format%";
SHOW SESSION VARIABLES LIKE "%_format%";
SET date_format="%d.%m.%Y";
select CAST("01.01.2001" as DATE) as a;
SET datetime_format="%d.%m.%Y %H.%i.%s";
select CAST("01.01.2001 05.12.06" as DATETIME) as a;
SET time_format="%H.%i.%s";
select CAST("05.12.06" as TIME) as a;
SET datetime_format="%d.%m.%Y %h:%i:%s %p";
select CAST("01.01.2001 05:12:06AM" as DATETIME) as a;
select CAST("01.01.2001 05:12:06 PM" as DATETIME) as a;
SET time_format="%h:%i:%s %p";
select CAST("05:12:06 AM" as TIME) as a;
select CAST("05:12:06.1234PM" as TIME) as a;
SET time_format="%h.%i.%s %p";
SET date_format='%d.%m.%y';
SET datetime_format="%d.%m.%y %h.%i.%s %p";
select CAST("12-12-06" as DATE) as a;
select adddate("01.01.97 11.59.59.000001 PM", 10);
select datediff("31.12.97 11.59:59.000001 PM","01.01.98");
select weekofyear("31.11.97 11:59:59.000001 PM");
select makedate(1997,1);
select addtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002");
select maketime(23,11,12);
select timediff("01.01.97 11:59:59.000001 PM","31.12.95 11:59:59.000002 PM");
SET time_format="%H%i%s";
--error 1105
SET time_format="%h%i%s";
--error 1105
SET date_format='%d.%m.%d';
--error 1105
SET datetime_format="%d.%m.%y %h.%i.%s";
SET GLOBAL date_format=default;
SHOW GLOBAL VARIABLES LIKE "date_format%";
SET GLOBAL time_format=default;
SHOW GLOBAL VARIABLES LIKE "time_format%";
SET GLOBAL datetime_format=default;
SHOW GLOBAL VARIABLES LIKE "datetime_format%";
SET date_format=default;
SHOW SESSION VARIABLES LIKE "date_format%";
SET time_format=default;
SHOW SESSION VARIABLES LIKE "time_format%";
SET datetime_format=default;
SHOW SESSION VARIABLES LIKE "datetime_format%";
SET time_format='%i:%s:%H';
select cast(str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S") as TIME);
SET GLOBAL date_format='%Y-%m-%d';
SET GLOBAL time_format='%H:%i:%s';
SET GLOBAL datetime_format='%Y-%m-%d %H:%i:%s';
SET date_format='%Y-%m-%d';
SET time_format='%H:%i:%s';
SET datetime_format='%Y-%m-%d %H:%i:%s';
select str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S");
select str_to_date("15 September 2001", "%d %M %Y");
select str_to_date("15 Septembeb 2001", "%d %M %Y");
select str_to_date("15 MAY 2001", "%d %b %Y");
select str_to_date("Sunday 15 MAY 2001", "%W %d %b %Y");
select str_to_date("Sundai 15 MAY 2001", "%W %d %b %Y");
select str_to_date("Sundai 15 MA", "%W %d %b %Y");
select str_to_date("Tuesday 52 2001", "%W %V %X");
select str_to_date("Sunday 01 2001", "%W %V %X");
select str_to_date("Tuesday 00 2002", "%W %U %Y");
select str_to_date("Thursday 53 1998", "%W %u %Y");
select str_to_date("15-01-2001", "%d-%m-%Y %H:%i:%S");
select str_to_date("15-01-20", "%d-%m-%Y");
select str_to_date("15-2001-1", "%d-%Y-%c");
select get_format(DATE, 'USA') as a;
select get_format(TIME, 'internal') as a;
select get_format(DATETIME, 'eur') as a;
sql/field.cc
View file @ 299fc6a9
......@@ -279,7 +279,8 @@ bool Field::get_date(TIME *ltime,bool fuzzydate)
char buff[40];
String tmp(buff,sizeof(buff),&my_charset_bin),tmp2,*res;
if (!(res=val_str(&tmp,&tmp2)) ||
str_to_TIME(res->ptr(),res->length(),ltime,fuzzydate) == TIMESTAMP_NONE)
str_to_TIME(res->ptr(),res->length(),ltime,fuzzydate,current_thd)<=
WRONG_TIMESTAMP_FULL)
return 1;
return 0;
}
......@@ -289,7 +290,7 @@ bool Field::get_time(TIME *ltime)
char buff[40];
String tmp(buff,sizeof(buff),&my_charset_bin),tmp2,*res;
if (!(res=val_str(&tmp,&tmp2)) ||
str_to_time(res->ptr(),res->length(),ltime))
str_to_time(res->ptr(),res->length(),ltime,current_thd))
return 1;
return 0;
}
......@@ -299,28 +300,29 @@ bool Field::get_time(TIME *ltime)
void Field::store_time(TIME *ltime,timestamp_type type)
{
char buff[25];
String tmp((char*) buff,sizeof(buff),&my_charset_bin);
DATETIME_FORMAT *tmp_format= 0;
bool is_time_only= 0;
switch (type) {
case TIMESTAMP_NONE:
case WRONG_TIMESTAMP_FULL:
store("",0,&my_charset_bin); // Probably an error
break;
return;
case TIMESTAMP_DATE:
sprintf(buff,"%04d-%02d-%02d", ltime->year,ltime->month,ltime->day);
store(buff,10,&my_charset_bin);
tmp_format= &t_datetime_frm(current_thd, DATE_FORMAT_TYPE).datetime_format;
break;
case TIMESTAMP_FULL:
sprintf(buff,"%04d-%02d-%02d %02d:%02d:%02d",
ltime->year,ltime->month,ltime->day,
ltime->hour,ltime->minute,ltime->second);
store(buff,19,&my_charset_bin);
tmp_format=&t_datetime_frm(current_thd,DATETIME_FORMAT_TYPE).datetime_format;
break;
case TIMESTAMP_TIME:
{
ulong length= my_sprintf(buff, (buff, "%02d:%02d:%02d",
ltime->hour,ltime->minute,ltime->second));
store(buff,(uint) length, &my_charset_bin);
tmp_format= &t_datetime_frm(current_thd, TIME_FORMAT_TYPE).datetime_format;
is_time_only= 1;
break;
}
}
make_datetime(&tmp, ltime, is_time_only, 0,
tmp_format->format, tmp_format->format_length, 1);
store(tmp.ptr(),tmp.length(),&my_charset_bin);
}
......@@ -2684,7 +2686,7 @@ Field_timestamp::Field_timestamp(char *ptr_arg, uint32 len_arg,
int Field_timestamp::store(const char *from,uint len,CHARSET_INFO *cs)
{
long tmp=(long) str_to_timestamp(from,len);
long tmp=(long) str_to_timestamp(from,len,current_thd);
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
......@@ -3018,7 +3020,7 @@ int Field_time::store(const char *from,uint len,CHARSET_INFO *cs)
TIME ltime;
long tmp;
int error= 0;
if (str_to_time(from,len,&ltime))
if (str_to_time(from,len,&ltime,current_thd))
{
tmp=0L;
error= 1;
......@@ -3127,19 +3129,25 @@ longlong Field_time::val_int(void)
String *Field_time::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
TIME ltime;
val_buffer->alloc(16);
long tmp=(long) sint3korr(ptr);
const char *sign="";
ltime.neg= 0;
if (tmp < 0)
{
tmp= -tmp;
sign= "-";
}
long length= my_sprintf((char*) val_buffer->ptr(),
((char*) val_buffer->ptr(),"%s%02d:%02d:%02d",
sign,(int) (tmp/10000), (int) (tmp/100 % 100),
(int) (tmp % 100)));
val_buffer->length(length);
ltime.neg= 1;
}
DATETIME_FORMAT *tmp_format= (&t_datetime_frm
(current_thd, TIME_FORMAT_TYPE).datetime_format);
ltime.day= (uint) 0;
ltime.hour= (uint) (tmp/10000);
ltime.minute= (uint) (tmp/100 % 100);
ltime.second= (uint) (tmp % 100);
make_datetime(val_buffer, &ltime, 0, 0,
tmp_format->format,
tmp_format->format_length, 1);
return val_buffer;
}
......@@ -3305,7 +3313,7 @@ int Field_date::store(const char *from, uint len,CHARSET_INFO *cs)
TIME l_time;
uint32 tmp;
int error= 0;
if (str_to_TIME(from,len,&l_time,1) == TIMESTAMP_NONE)
if (str_to_TIME(from,len,&l_time,1,current_thd) <= WRONG_TIMESTAMP_FULL)
{
tmp=0;
error= 1;
......@@ -3415,6 +3423,7 @@ longlong Field_date::val_int(void)
String *Field_date::val_str(String *val_buffer,
String *val_ptr __attribute__((unused)))
{
TIME ltime;
val_buffer->alloc(field_length);
val_buffer->length(field_length);
int32 tmp;
......@@ -3424,9 +3433,15 @@ String *Field_date::val_str(String *val_buffer,
else
#endif
longget(tmp,ptr);
sprintf((char*) val_buffer->ptr(),"%04d-%02d-%02d",
(int) ((uint32) tmp/10000L % 10000), (int) ((uint32) tmp/100 % 100),
(int) ((uint32) tmp % 100));
DATETIME_FORMAT *tmp_format= (&t_datetime_frm
(current_thd, DATE_FORMAT_TYPE).datetime_format);
ltime.neg= 0;
ltime.year= (int) ((uint32) tmp/10000L % 10000);
ltime.month= (int) ((uint32) tmp/100 % 100);
ltime.day= (int) ((uint32) tmp % 100);
make_datetime(val_buffer, &ltime, 0, 0,
tmp_format->format,
tmp_format->format_length, 1);
return val_buffer;
}
......@@ -3485,7 +3500,7 @@ int Field_newdate::store(const char *from,uint len,CHARSET_INFO *cs)
TIME l_time;
long tmp;
int error= 0;
if (str_to_TIME(from,len,&l_time,1) == TIMESTAMP_NONE)
if (str_to_TIME(from,len,&l_time,1,current_thd) <= WRONG_TIMESTAMP_FULL)
{
tmp=0L;
error= 1;
......@@ -3654,7 +3669,7 @@ void Field_newdate::sql_type(String &res) const
int Field_datetime::store(const char *from,uint len,CHARSET_INFO *cs)
{
longlong tmp=str_to_datetime(from,len,1);
longlong tmp=str_to_datetime(from,len,1,current_thd);
#ifdef WORDS_BIGENDIAN
if (table->db_low_byte_first)
{
......
sql/item.cc
View file @ 299fc6a9
......@@ -46,7 +46,7 @@ Item::Item():
collation.set(default_charset(), DERIVATION_COERCIBLE);
name= 0;
decimals= 0; max_length= 0;
THD *thd= current_thd;
thd= current_thd;
next= thd->free_list; // Put in free list
thd->free_list= this;
/*
......@@ -69,7 +69,7 @@ Item::Item():
Used for duplicating lists in processing queries with temporary
tables
*/
Item::Item(THD *thd, Item &item):
Item::Item(THD *c_thd, Item &item):
str_value(item.str_value),
name(item.name),
max_length(item.max_length),
......@@ -82,7 +82,8 @@ Item::Item(THD *thd, Item &item):
fixed(item.fixed),
collation(item.collation)
{
next=thd->free_list; // Put in free list
next=c_thd->free_list; // Put in free list
thd= c_thd;
thd->free_list= this;
}
......@@ -174,7 +175,8 @@ bool Item::get_date(TIME *ltime,bool fuzzydate)
char buff[40];
String tmp(buff,sizeof(buff), &my_charset_bin),*res;
if (!(res=val_str(&tmp)) ||
str_to_TIME(res->ptr(),res->length(),ltime,fuzzydate) == TIMESTAMP_NONE)
str_to_TIME(res->ptr(),res->length(),ltime,fuzzydate, thd) <=
WRONG_TIMESTAMP_FULL)
{
bzero((char*) ltime,sizeof(*ltime));
return 1;
......@@ -192,7 +194,7 @@ bool Item::get_time(TIME *ltime)
char buff[40];
String tmp(buff,sizeof(buff),&my_charset_bin),*res;
if (!(res=val_str(&tmp)) ||
str_to_time(res->ptr(),res->length(),ltime))
str_to_time(res->ptr(),res->length(),ltime, thd))
{
bzero((char*) ltime,sizeof(*ltime));
return 1;
......@@ -673,30 +675,28 @@ String *Item_param::query_val_str(String* str)
}
else
{
char buff[25];
DATETIME_FORMAT *tmp_format= 0;
bool is_time_only= 0;
switch (ltime.time_type) {
case TIMESTAMP_NONE:
case WRONG_TIMESTAMP_FULL:
break;
case TIMESTAMP_DATE:
sprintf(buff, "%04d-%02d-%02d",
ltime.year,ltime.month,ltime.day);
str->append(buff, 10);
tmp_format= &t_datetime_frm(thd, DATE_FORMAT_TYPE).datetime_format;
break;
case TIMESTAMP_FULL:
sprintf(buff, "%04d-%02d-%02d %02d:%02d:%02d",
ltime.year,ltime.month,ltime.day,
ltime.hour,ltime.minute,ltime.second);
str->append(buff, 19);
tmp_format= &t_datetime_frm(thd, DATETIME_FORMAT_TYPE).datetime_format;
break;
case TIMESTAMP_TIME:
{
sprintf(buff, "%02d:%02d:%02d",
ltime.hour,ltime.minute,ltime.second);
str->append(buff, 8);
tmp_format= &t_datetime_frm(thd, TIME_FORMAT_TYPE).datetime_format;
is_time_only= 1;
break;
}
}
make_datetime(str, &ltime, is_time_only, 0,
tmp_format->format, tmp_format->format_length, 0);
}
str->append("'");
}
......
sql/item.h
View file @ 299fc6a9
......@@ -114,6 +114,14 @@ class Item {
my_bool fixed; /* If item fixed with fix_fields */
DTCollation collation;
/*
thd is current_thd value. Like some other Item's fields it
will be a problem for using one Item in different threads
(as stored procedures may want to do in the future)
*/
THD *thd;
// alloc & destruct is done as start of select using sql_alloc
Item();
/*
......@@ -124,7 +132,7 @@ class Item {
top AND/OR ctructure of WHERE clause to protect it of
optimisation changes in prepared statements
*/
Item(THD *thd, Item &item);
Item(THD *c_thd, Item &item);
virtual ~Item() { name=0; } /*lint -e1509 */
void set_name(const char *str,uint length, CHARSET_INFO *cs);
void init_make_field(Send_field *tmp_field,enum enum_field_types type);
......
sql/item_create.cc
View file @ 299fc6a9
......@@ -701,3 +701,8 @@ Item *create_func_maketime(Item* a,Item* b,Item* c)
{
return new Item_func_maketime(a, b, c);
}
Item *create_func_str_to_date(Item* a,Item* b)
{
return new Item_func_str_to_date(a, b);
}
sql/item_create.h
View file @ 299fc6a9
......@@ -149,3 +149,4 @@ Item *create_func_addtime(Item* a,Item* b);
Item *create_func_subtime(Item* a,Item* b);
Item *create_func_timediff(Item* a,Item* b);
Item *create_func_maketime(Item* a,Item* b,Item* c);
Item *create_func_str_to_date(Item* a,Item* b);
sql/item_timefunc.cc
View file @ 299fc6a9
......@@ -57,82 +57,544 @@ static String day_names[] =
String("Sunday", &my_charset_latin1)
};
enum date_time_format_types
uint check_names(String *arr,int item_count,const char *val_ptr,
const char *val_end, uint *val, bool check_part)
{
TIME_ONLY= 0, TIME_MICROSECOND,
DATE_ONLY, DATE_TIME, DATE_TIME_MICROSECOND
};
for (int i= 0; i < item_count; i++)
{
String *tmp=&arr[i];
if (!my_strnncoll(&my_charset_latin1,
(const uchar *) val_ptr, 3,
(const uchar *) tmp->ptr(), 3))
{
if (check_part)
{
*val= i+1;
return 3;
}
typedef struct date_time_format
{
const char* format_str;
uint length;
};
int part_len= tmp->length() - 3;
int val_len= val_end - val_ptr - 3;
if (val_len < part_len)
return 0;
val_ptr+=3;
if (!my_strnncoll(&my_charset_latin1,
(const uchar *) val_ptr, part_len,
(const uchar *) tmp->ptr() + 3, part_len))
{
*val= i+1;
return tmp->length();
}
return 0;
}
}
return 0;
}
static struct date_time_format date_time_formats[]=
uint check_val_is_digit(const char *ptr, uint val_len, uint digit_count)
{
{"%s%02d:%02d:%02d", 10},
{"%s%02d:%02d:%02d.%06d", 17},
{"%04d-%02d-%02d", 10},
{"%04d-%02d-%02d %02d:%02d:%02d", 19},
{"%04d-%02d-%02d %02d:%02d:%02d.%06d", 26}
};
uint i;
uint verify_count= (val_len < digit_count ? val_len : digit_count);
uint digit_found= 0;
for (i= 0; i < verify_count; i++)
{
if (!my_isdigit(&my_charset_latin1, *(ptr+i)))
break;
digit_found++;
}
return digit_found;
}
/*
OPTIMIZATION TODO:
- Replace the switch with a function that should be called for each
date type.
- Remove sprintf and opencode the conversion, like we do in
Field_datetime.
Extract datetime value to TIME struct from string value
according to format string.
*/
String *make_datetime(String *str, TIME *ltime,
enum date_time_format_types format)
bool extract_datetime(const char *str_val, uint str_val_len,
const char *str_format, uint str_format_len,
TIME *l_time)
{
char *buff;
char intbuff[15];
int weekday= 0, yearday= 0, daypart= 0, len;
int val_len= 0;
int week_number= -1;
ulong length;
CHARSET_INFO *cs= &my_charset_bin;
uint length= date_time_formats[format].length + 32;
const char* format_str= date_time_formats[format].format_str;
int err= 0;
bool usa_time= 0;
bool sunday_first= 0;
const char *rT_format= "%H:%i:%s";
uint part_len= 0;
const char *val_ptr=str_val;
const char *val_end= str_val + str_val_len;
const char *ptr=str_format;
const char *end=ptr+ str_format_len;
DBUG_ENTER("extract_datetime");
for (; ptr != end && val_ptr != val_end; ptr++)
{
if (*ptr == '%' && ptr+1 != end)
{
val_len= val_end - val_ptr;
char *val_end1= (char *) val_end;
switch (*++ptr) {
case 'h':
case 'I':
case 'H':
l_time->hour= my_strntoll(cs, val_ptr,
2, 10, &val_end1, &err);
if (err || (val_end1 - val_ptr != 2))
return 1;
usa_time= (*ptr == 'I' || *ptr == 'h');
val_ptr+=2;
break;
case 'k':
case 'l':
l_time->hour= my_strntoll(cs, val_ptr,
2, 10, &val_end1, &err);
if (err)
return 1;
usa_time= (*ptr == 'l');
val_ptr= val_end1;
break;
case 'e':
l_time->day= my_strntoll(cs, val_ptr,
2, 10, &val_end1, &err);
if (err)
return 1;
val_ptr= val_end1;
break;
case 'c':
l_time->month= my_strntoll(cs, val_ptr,
2, 10, &val_end1, &err);
if (err)
return 1;
val_ptr= val_end1;
break;
case 'Y':
l_time->year= my_strntoll(cs, val_ptr,
4, 10, &val_end1, &err);
if (err || (val_end1 - val_ptr != 4))
return 1;
val_ptr+=4;
break;
case 'y':
l_time->year= my_strntoll(cs, val_ptr,
2, 10, &val_end1, &err);
if (err || (val_end1 - val_ptr != 2))
return 1;
l_time->year+= (l_time->year < YY_PART_YEAR ? 2000 : 1900);
val_ptr+=2;
break;
case 'm':
l_time->month= my_strntoll(cs, val_ptr,
2, 10, &val_end1, &err);
if (err || (val_end1 - val_ptr != 2))
return 1;
val_ptr+=2;
break;
case 'd':
l_time->day= my_strntoll(cs, val_ptr,
2, 10, &val_end1, &err);
if (err || (val_end1 - val_ptr != 2))
return 1;
val_ptr+=2;
break;
case 'D':
l_time->day= my_strntoll(cs, val_ptr,
2, 10, &val_end1, &err);
if (err || (val_len < val_end1 - val_ptr + 2))
return 1;
val_ptr= val_end1 + 2;
break;
case 'i':
l_time->minute=my_strntoll(cs, val_ptr,
2, 10, &val_end1, &err);
if (err || (val_end1 - val_ptr != 2))
return 1;
val_ptr+=2;
break;
case 's':
case 'S':
l_time->second= my_strntoll(cs, val_ptr,
2, 10, &val_end1, &err);
if (err || (val_end1 - val_ptr != 2))
return 1;
val_ptr+=2;
break;
case 'M':
if (val_len < 3 ||
!(part_len= check_names(month_names, 12 , val_ptr,
val_end, &l_time->month, 0)))
return 1;
val_ptr+= part_len;
break;
case 'b':
if (val_len < 3 ||
!(part_len= check_names(month_names, 12 , val_ptr,
val_end,(uint *) &l_time->month, 1)))
return 1;
val_ptr+= part_len;
break;
case 'W':
if (val_len < 3 ||
!(part_len= check_names(day_names, 7 , val_ptr,
val_end,(uint *) &weekday, 0)))
return 1;
val_ptr+= part_len;
break;
case 'a':
if (val_len < 3 ||
!(part_len= check_names(day_names, 7 , val_ptr,
val_end,(uint *) &weekday, 1)))
return 1;
val_ptr+= part_len;
break;
case 'w':
weekday= my_strntoll(cs, val_ptr, 1, 10, &val_end1, &err);
if (err)
return 1;
val_ptr++;
break;
case 'j':
yearday= my_strntoll(cs, val_ptr, 3, 10, &val_end1, &err);
if (err || (val_end1 - val_ptr != 3))
return 1;
val_ptr+=3;
break;
case 'f':
l_time->second_part= my_strntoll(cs, val_ptr, 3, 10, &val_end1, &err);
if (err)
return 1;
val_ptr= val_end1;
break;
case 'p':
if (val_len < 2)
return 1;
if (!my_strnncoll(&my_charset_latin1,
(const uchar *) val_ptr, 2,
(const uchar *) "PM", 2))
{
daypart= 12;
val_ptr+= 2;
}
break;
case 'U':
week_number= my_strntoll(cs, val_ptr, 2, 10, &val_end1, &err);
if (err || (val_end1 - val_ptr != 2))
return 1;
sunday_first= 1;
val_ptr+=2;
break;
case 'u':
week_number= my_strntoll(cs, val_ptr, 2, 10, &val_end1, &err);
if (err || (val_end1 - val_ptr != 2))
return 1;
sunday_first=0;
val_ptr+=2;
break;
case 'r':
case 'T':
usa_time= (*ptr == 'r');
if (extract_datetime(val_ptr, val_end-val_ptr,
rT_format, strlen(rT_format),
l_time))
return 1;
val_ptr+=8;
break;
default:
if (*val_ptr != *ptr)
return 1;
val_ptr++;
}
}
else
{
if (*val_ptr != *ptr)
return 1;
val_ptr++;
}
}
if (usa_time)
{
if (l_time->hour > 12 || l_time->hour < 1)
return 1;
l_time->hour= l_time->hour%12+daypart;
}
if (str->alloc(length))
return 0;
if (yearday > 0)
{
uint days= calc_daynr(l_time->year,1,1) + yearday - 1;
if (days > 0 || days < MAX_DAY_NUMBER)
{
get_date_from_daynr(days,&l_time->year,&l_time->month,&l_time->day);
}
}
if (week_number >= 0 && weekday)
{
int days= calc_daynr(l_time->year,1,1);
uint weekday_b;
if (weekday > 7 || weekday < 0)
return 1;
if (sunday_first)
weekday = weekday%7;
if (week_number == 53)
{
days+= (week_number - 1)*7;
weekday_b= calc_weekday(days, sunday_first);
weekday = weekday - weekday_b - !sunday_first;
days+= weekday;
}
else if (week_number == 0)
{
weekday_b= calc_weekday(days, sunday_first);
weekday = weekday - weekday_b - !sunday_first;
days+= weekday;
}
else
{
days+= (week_number - !sunday_first)*7;
weekday_b= calc_weekday(days, sunday_first);
weekday =weekday - weekday_b - !sunday_first;
days+= weekday;
}
if (days > 0 || days < MAX_DAY_NUMBER)
{
get_date_from_daynr(days,&l_time->year,&l_time->month,&l_time->day);
}
}
if (l_time->month > 12 || l_time->day > 31 || l_time->hour > 23 ||
l_time->minute > 59 || l_time->second > 59)
return 1;
buff= (char*) str->ptr();
switch (format) {
case TIME_ONLY:
length= cs->cset->snprintf(cs, buff, length, format_str, ltime->neg ? "-" : "",
ltime->hour, ltime->minute, ltime->second);
DBUG_RETURN(0);
}
/*
Print datetime string from TIME struct
according to format string.
*/
String *make_datetime(String *str, TIME *l_time,
const bool is_time_only,
const bool add_second_frac,
const char *ptr, uint format_length,
bool set_len_to_zero)
{
char intbuff[15];
uint days_i;
uint hours_i;
uint weekday;
ulong length;
if (set_len_to_zero)
str->length(0);
if (l_time->neg)
str->append("-", 1);
const char *end=ptr+format_length;
for (; ptr != end ; ptr++)
{
if (*ptr != '%' || ptr+1 == end)
str->append(*ptr);
else
{
switch (*++ptr) {
case 'M':
if (!l_time->month)
return 0;
str->append(month_names[l_time->month-1]);
break;
case 'b':
if (!l_time->month)
return 0;
str->append(month_names[l_time->month-1].ptr(),3);
break;
case TIME_MICROSECOND:
length= cs->cset->snprintf(cs, buff, length, format_str, ltime->neg ? "-" : "",
ltime->hour, ltime->minute, ltime->second,
ltime->second_part);
case 'W':
if (is_time_only)
return 0;
weekday=calc_weekday(calc_daynr(l_time->year,l_time->month,l_time->day),0);
str->append(day_names[weekday]);
break;
case DATE_ONLY:
length= cs->cset->snprintf(cs, buff, length, format_str,
ltime->year, ltime->month, ltime->day);
case 'a':
if (is_time_only)
return 0;
weekday=calc_weekday(calc_daynr(l_time->year,l_time->month,l_time->day),0);
str->append(day_names[weekday].ptr(),3);
break;
case 'D':
if (is_time_only)
return 0;
length= int10_to_str(l_time->day, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
if (l_time->day >= 10 && l_time->day <= 19)
str->append("th");
else
{
switch (l_time->day %10) {
case 1:
str->append("st",2);
break;
case DATE_TIME:
length= cs->cset->snprintf(cs, buff, length, format_str,
ltime->year, ltime->month, ltime->day,
ltime->hour, ltime->minute, ltime->second);
case 2:
str->append("nd",2);
break;
case DATE_TIME_MICROSECOND:
length= cs->cset->snprintf(cs, buff, length, format_str,
ltime->year, ltime->month, ltime->day,
ltime->hour, ltime->minute, ltime->second,
ltime->second_part);
case 3:
str->append("rd",2);
break;
default:
str->append("th",2);
break;
}
}
break;
case 'Y':
length= int10_to_str(l_time->year, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 4, '0');
break;
case 'y':
length= int10_to_str(l_time->year%100, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'm':
length= int10_to_str(l_time->month, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'c':
length= int10_to_str(l_time->month, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
break;
case 'd':
length= int10_to_str(l_time->day, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'e':
length= int10_to_str(l_time->day, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
break;
case 'f':
length= int10_to_str(l_time->second_part, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 6, '0');
break;
case 'H':
length= int10_to_str(l_time->hour, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'h':
case 'I':
days_i= l_time->hour/24;
hours_i= (l_time->hour%24 + 11)%12+1 + 24*days_i;
length= int10_to_str(hours_i, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'i': /* minutes */
length= int10_to_str(l_time->minute, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'j':
if (is_time_only)
return 0;
length= int10_to_str(calc_daynr(l_time->year,l_time->month,l_time->day) -
calc_daynr(l_time->year,1,1) + 1, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 3, '0');
break;
case 'k':
length= int10_to_str(l_time->hour, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
break;
case 'l':
days_i= l_time->hour/24;
hours_i= (l_time->hour%24 + 11)%12+1 + 24*days_i;
length= int10_to_str(hours_i, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
break;
case 'p':
hours_i= l_time->hour%24;
str->append(hours_i < 12 ? "AM" : "PM",2);
break;
case 'r':
length= my_sprintf(intbuff,
(intbuff,
(l_time->hour < 12) ? "%02d:%02d:%02d AM" : "%02d:%02d:%02d PM",
(l_time->hour+11)%12+1,
l_time->minute,
l_time->second));
str->append(intbuff, length);
break;
case 'S':
case 's':
length= int10_to_str(l_time->second, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
if (add_second_frac)
{
str->append(".", 1);
length= int10_to_str(l_time->second_part, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 6, '0');
}
break;
case 'T':
length= my_sprintf(intbuff,
(intbuff,
"%02d:%02d:%02d",
l_time->hour,
l_time->minute,
l_time->second));
str->append(intbuff, length);
break;
case 'U':
case 'u':
{
uint year;
if (is_time_only)
return 0;
length= int10_to_str(calc_week(l_time, 0, (*ptr) == 'U', &year),
intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
}
break;
case 'v':
case 'V':
{
uint year;
if (is_time_only)
return 0;
length= int10_to_str(calc_week(l_time, 1, (*ptr) == 'V', &year),
intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
}
break;
case 'x':
case 'X':
{
uint year;
if (is_time_only)
return 0;
(void) calc_week(l_time, 1, (*ptr) == 'X', &year);
length= int10_to_str(year, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 4, '0');
}
break;
case 'w':
if (is_time_only)
return 0;
weekday=calc_weekday(calc_daynr(l_time->year,l_time->month,l_time->day),1);
length= int10_to_str(weekday, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
break;
default:
str->append(*ptr);
break;
}
}
}
str->length(length);
str->set_charset(cs);
return str;
}
/*
** Get a array of positive numbers from a string object.
** Each number is separated by 1 non digit character
......@@ -346,7 +808,7 @@ longlong Item_func_year::val_int()
longlong Item_func_unix_timestamp::val_int()
{
if (arg_count == 0)
return (longlong) current_thd->query_start();
return (longlong) thd->query_start();
if (args[0]->type() == FIELD_ITEM)
{ // Optimize timestamp field
Field *field=((Item_field*) args[0])->field;
......@@ -358,7 +820,7 @@ longlong Item_func_unix_timestamp::val_int()
{
return 0; /* purecov: inspected */
}
return (longlong) str_to_timestamp(str->ptr(),str->length());
return (longlong) str_to_timestamp(str->ptr(),str->length(), thd);
}
......@@ -522,22 +984,26 @@ static bool get_interval_value(Item *args,interval_type int_type,
String *Item_date::val_str(String *str)
{
DATETIME_FORMAT *tmp_format;
TIME ltime;
ulong value=(ulong) val_int();
if (null_value)
return (String*) 0;
if (!value) // zero daynr
{
str->copy("0000-00-00",10,&my_charset_latin1,default_charset());
return str;
}
goto null_date;
ltime.year= (value/10000L) % 10000;
ltime.month= (value/100)%100;
ltime.day= (value%100);
ltime.neg=0;
ltime.time_type=TIMESTAMP_DATE;
char tmpbuff[11];
sprintf(tmpbuff,"%04d-%02d-%02d",
(int) (value/10000L) % 10000,
(int) (value/100)%100,
(int) (value%100));
str->copy(tmpbuff,10,&my_charset_latin1,default_charset());
tmp_format= &t_datetime_frm(thd, DATE_FORMAT_TYPE).datetime_format;
if (make_datetime(str, &ltime, 0, 0,
tmp_format->format, tmp_format->format_length, 1))
return str;
null_value= 1;
null_date:
return 0;
}
......@@ -577,7 +1043,7 @@ void Item_func_curdate::fix_length_and_dec()
decimals=0;
max_length=10*default_charset()->mbmaxlen;
store_now_in_tm(current_thd->query_start(),&start);
store_now_in_tm(thd->query_start(),&start);
value=(longlong) ((ulong) ((uint) start.tm_year+1900)*10000L+
((uint) start.tm_mon+1)*100+
......@@ -632,22 +1098,27 @@ String *Item_func_curtime::val_str(String *str)
void Item_func_curtime::fix_length_and_dec()
{
struct tm start;
CHARSET_INFO *cs= default_charset();
DATETIME_FORMAT *tmp_format;
String tmp((char*) buff,sizeof(buff),default_charset());
TIME ltime;
decimals=0;
max_length=8*cs->mbmaxlen;
collation.set(cs);
store_now_in_tm(current_thd->query_start(),&start);
store_now_in_tm(thd->query_start(),&start);
value=(longlong) ((ulong) ((uint) start.tm_hour)*10000L+
(ulong) (((uint) start.tm_min)*100L+
(uint) start.tm_sec));
buff_length=cs->cset->snprintf(cs,buff,sizeof(buff),"%02d:%02d:%02d",
(int) start.tm_hour,
(int) start.tm_min,
(int) start.tm_sec);
ltime.day= 0;
ltime.hour= start.tm_hour;
ltime.minute= start.tm_min;
ltime.second= start.tm_sec;
ltime.second_part= 0;
ltime.neg= 0;
ltime.time_type= TIMESTAMP_TIME;
tmp_format= &t_datetime_frm(thd, TIME_FORMAT_TYPE).datetime_format;
make_datetime(&tmp, &ltime, 0, 0,
tmp_format->format, tmp_format->format_length, 1);
buff_length= tmp.length();
max_length= buff_length;
}
......@@ -681,14 +1152,11 @@ String *Item_func_now::val_str(String *str)
void Item_func_now::fix_length_and_dec()
{
struct tm start;
CHARSET_INFO *cs= &my_charset_bin;
DATETIME_FORMAT *tmp_format;
String tmp((char*) buff,sizeof(buff),&my_charset_bin);
decimals=0;
max_length=19*cs->mbmaxlen;
collation.set(cs);
store_now_in_tm(current_thd->query_start(),&start);
store_now_in_tm(thd->query_start(),&start);
value=((longlong) ((ulong) ((uint) start.tm_year+1900)*10000L+
(((uint) start.tm_mon+1)*100+
(uint) start.tm_mday))*(longlong) 1000000L+
......@@ -696,14 +1164,6 @@ void Item_func_now::fix_length_and_dec()
(ulong) (((uint) start.tm_min)*100L+
(uint) start.tm_sec)));
buff_length= (uint) cs->cset->snprintf(cs,buff, sizeof(buff),
"%04d-%02d-%02d %02d:%02d:%02d",
((int) (start.tm_year+1900)) % 10000,
(int) start.tm_mon+1,
(int) start.tm_mday,
(int) start.tm_hour,
(int) start.tm_min,
(int) start.tm_sec);
/* For getdate */
ltime.year= start.tm_year+1900;
ltime.month= start.tm_mon+1;
......@@ -711,9 +1171,15 @@ void Item_func_now::fix_length_and_dec()
ltime.hour= start.tm_hour;
ltime.minute= start.tm_min;
ltime.second= start.tm_sec;
ltime.second_part=0;
ltime.neg=0;
ltime.time_type=TIMESTAMP_FULL;
ltime.second_part= 0;
ltime.neg= 0;
ltime.time_type= TIMESTAMP_FULL;
tmp_format= &t_datetime_frm(thd, DATETIME_FORMAT_TYPE).datetime_format;
make_datetime(&tmp, &ltime, 0, 0,
tmp_format->format, tmp_format->format_length, 1);
buff_length= tmp.length();
max_length= buff_length;
}
bool Item_func_now::get_date(TIME *res,
......@@ -754,22 +1220,36 @@ void Item_func_now_utc::store_now_in_tm(time_t now, struct tm *now_tm)
String *Item_func_sec_to_time::val_str(String *str)
{
char buff[23*2];
const char *sign="";
longlong seconds=(longlong) args[0]->val_int();
ulong length;
uint sec;
DATETIME_FORMAT *tmp_format;
TIME ltime;
if ((null_value=args[0]->null_value))
return (String*) 0;
goto null_date;
ltime.neg= 0;
if (seconds < 0)
{
seconds= -seconds;
sign= "-";
ltime.neg= 1;
}
uint sec= (uint) ((ulonglong) seconds % 3600);
length= my_sprintf(buff,(buff,"%s%02lu:%02u:%02u",sign,(long) (seconds/3600),
sec/60, sec % 60));
str->copy(buff, length, &my_charset_latin1, default_charset());
sec= (uint) ((ulonglong) seconds % 3600);
ltime.day= 0;
ltime.hour= seconds/3600;
ltime.minute= sec/60;
ltime.second= sec % 60;
tmp_format= &t_datetime_frm(thd, TIME_FORMAT_TYPE).datetime_format;
if (make_datetime(str, &ltime, 0, 0,
tmp_format->format, tmp_format->format_length, 1))
return str;
null_value= 1;
null_date:
return (String*) 0;
}
......@@ -879,9 +1359,7 @@ String *Item_func_date_format::val_str(String *str)
{
String *format;
TIME l_time;
char intbuff[15];
uint size,weekday;
ulong length;
if (!date_or_time)
{
......@@ -892,24 +1370,17 @@ String *Item_func_date_format::val_str(String *str)
{
String *res;
if (!(res=args[0]->val_str(str)))
{
null_value=1;
return 0;
}
if (str_to_time(res->ptr(),res->length(),&l_time))
{
null_value=1;
return 0;
}
goto null_date;
if (str_to_time(res->ptr(),res->length(),&l_time, thd))
goto null_date;
l_time.year=l_time.month=l_time.day=0;
null_value=0;
}
if (!(format = args[1]->val_str(str)) || !format->length())
{
null_value=1;
return 0;
}
goto null_date;
if (fixed_length)
size=max_length;
......@@ -918,237 +1389,53 @@ String *Item_func_date_format::val_str(String *str)
if (format == str)
str= &value; // Save result here
if (str->alloc(size))
{
null_value=1;
return 0;
}
str->length(0);
goto null_date;
/* Create the result string */
const char *ptr=format->ptr();
const char *end=ptr+format->length();
for (; ptr != end ; ptr++)
{
if (*ptr != '%' || ptr+1 == end)
str->append(*ptr);
else
{
switch (*++ptr) {
case 'M':
if (!l_time.month)
{
null_value=1;
return 0;
}
str->append(month_names[l_time.month-1]);
break;
case 'b':
if (!l_time.month)
{
null_value=1;
return 0;
}
str->append(month_names[l_time.month-1].ptr(),3);
break;
case 'W':
if (date_or_time)
{
null_value=1;
return 0;
}
weekday=calc_weekday(calc_daynr(l_time.year,l_time.month,l_time.day),0);
str->append(day_names[weekday]);
break;
case 'a':
if (date_or_time)
{
null_value=1;
return 0;
}
weekday=calc_weekday(calc_daynr(l_time.year,l_time.month,l_time.day),0);
str->append(day_names[weekday].ptr(),3);
break;
case 'D':
if (date_or_time)
{
null_value=1;
return 0;
}
length= int10_to_str(l_time.day, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
if (l_time.day >= 10 && l_time.day <= 19)
str->append("th");
else
{
switch (l_time.day %10) {
case 1:
str->append("st",2);
break;
case 2:
str->append("nd",2);
break;
case 3:
str->append("rd",2);
break;
default:
str->append("th",2);
break;
}
}
break;
case 'Y':
length= int10_to_str(l_time.year, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 4, '0');
break;
case 'y':
length= int10_to_str(l_time.year%100, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'm':
length= int10_to_str(l_time.month, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'c':
length= int10_to_str(l_time.month, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
break;
case 'd':
length= int10_to_str(l_time.day, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'e':
length= int10_to_str(l_time.day, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
break;
case 'f':
length= int10_to_str(l_time.second_part, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 6, '0');
break;
case 'H':
length= int10_to_str(l_time.hour, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'h':
case 'I':
length= int10_to_str((l_time.hour+11)%12+1, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'i': /* minutes */
length= int10_to_str(l_time.minute, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'j':
if (date_or_time)
{
if (make_datetime(str, &l_time, 0, 0,
format->ptr(), format->length(), 1))
return str;
null_date:
null_value=1;
return 0;
}
length= int10_to_str(calc_daynr(l_time.year,l_time.month,l_time.day) -
calc_daynr(l_time.year,1,1) + 1, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 3, '0');
break;
case 'k':
length= int10_to_str(l_time.hour, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
break;
case 'l':
length= int10_to_str((l_time.hour+11)%12+1, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
break;
case 'p':
str->append(l_time.hour < 12 ? "AM" : "PM",2);
break;
case 'r':
length= my_sprintf(intbuff,
(intbuff,
(l_time.hour < 12) ? "%02d:%02d:%02d AM" : "%02d:%02d:%02d PM",
(l_time.hour+11)%12+1,
l_time.minute,
l_time.second));
str->append(intbuff, length);
break;
case 'S':
case 's':
length= int10_to_str(l_time.second, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
break;
case 'T':
length= my_sprintf(intbuff,
(intbuff,
"%02d:%02d:%02d",
l_time.hour,
l_time.minute,
l_time.second));
str->append(intbuff, length);
break;
case 'U':
case 'u':
{
uint year;
length= int10_to_str(calc_week(&l_time, 0, (*ptr) == 'U', &year),
intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
}
break;
case 'v':
case 'V':
{
uint year;
length= int10_to_str(calc_week(&l_time, 1, (*ptr) == 'V', &year),
intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
}
break;
case 'x':
case 'X':
{
uint year;
(void) calc_week(&l_time, 1, (*ptr) == 'X', &year);
length= int10_to_str(year, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 4, '0');
}
break;
case 'w':
weekday=calc_weekday(calc_daynr(l_time.year,l_time.month,l_time.day),1);
length= int10_to_str(weekday, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 1, '0');
break;
default:
str->append(*ptr);
break;
}
}
}
return str;
}
String *Item_func_from_unixtime::val_str(String *str)
{
struct tm tm_tmp,*start;
DATETIME_FORMAT *tmp_format;
time_t tmp=(time_t) args[0]->val_int();
uint32 l;
CHARSET_INFO *cs=default_charset();
TIME ltime;
if ((null_value=args[0]->null_value))
return 0;
goto null_date;
localtime_r(&tmp,&tm_tmp);
start=&tm_tmp;
ltime.year= start->tm_year+1900;
ltime.month= start->tm_mon+1;
ltime.day= start->tm_mday;
ltime.hour= start->tm_hour;
ltime.minute= start->tm_min;
ltime.second= start->tm_sec;
ltime.second_part= 0;
ltime.neg=0;
l=20*cs->mbmaxlen+32;
if (str->alloc(l))
return str; /* purecov: inspected */
l=cs->cset->snprintf(cs,(char*) str->ptr(),l,"%04d-%02d-%02d %02d:%02d:%02d",
(int) start->tm_year+1900,
(int) start->tm_mon+1,
(int) start->tm_mday,
(int) start->tm_hour,
(int) start->tm_min,
(int) start->tm_sec);
str->length(l);
str->set_charset(cs);
tmp_format= &t_datetime_frm(thd, DATETIME_FORMAT_TYPE).datetime_format;
if (str->alloc(l) && make_datetime(str, &ltime, 1, 0,
tmp_format->format,
tmp_format->format_length, 1))
return str;
null_value= 1;
null_date:
return 0;
}
......@@ -1229,7 +1516,7 @@ bool Item_date_add_interval::get_date(TIME *ltime, bool fuzzy_date)
{
long period,sign;
INTERVAL interval;
ltime->neg= 0;
if (args[0]->get_date(ltime,0) ||
get_interval_value(args[1],int_type,&value,&interval))
goto null_date;
......@@ -1329,19 +1616,17 @@ bool Item_date_add_interval::get_date(TIME *ltime, bool fuzzy_date)
String *Item_date_add_interval::val_str(String *str)
{
TIME ltime;
enum date_time_format_types format;
DATETIME_FORMAT *tmp_format;
if (Item_date_add_interval::get_date(&ltime,0))
return 0;
if (ltime.time_type == TIMESTAMP_DATE)
format= DATE_ONLY;
else if (ltime.second_part)
format= DATE_TIME_MICROSECOND;
tmp_format= &t_datetime_frm(thd, DATE_FORMAT_TYPE).datetime_format;
else
format= DATE_TIME;
if (make_datetime(str, &ltime, format))
tmp_format= &t_datetime_frm(thd, DATETIME_FORMAT_TYPE).datetime_format;
if (make_datetime(str, &ltime, 1, ltime.second_part,
tmp_format->format, tmp_format->format_length, 1))
return str;
null_value=1;
......@@ -1400,7 +1685,7 @@ longlong Item_extract::val_int()
else
{
String *res= args[0]->val_str(&value);
if (!res || str_to_time(res->ptr(),res->length(),&ltime))
if (!res || str_to_time(res->ptr(),res->length(),&ltime, thd))
{
null_value=1;
return 0;
......@@ -1408,7 +1693,6 @@ longlong Item_extract::val_int()
neg= ltime.neg ? -1 : 1;
null_value=0;
}
switch (int_type) {
case INTERVAL_YEAR: return ltime.year;
case INTERVAL_YEAR_MONTH: return ltime.year*100L+ltime.month;
......@@ -1530,10 +1814,12 @@ void Item_char_typecast::fix_length_and_dec()
String *Item_datetime_typecast::val_str(String *str)
{
TIME ltime;
DATETIME_FORMAT *tmp_format= (&t_datetime_frm
(thd, DATETIME_FORMAT_TYPE).datetime_format);
if (!get_arg0_date(&ltime,1) &&
make_datetime(str, &ltime, ltime.second_part ?
DATE_TIME_MICROSECOND : DATE_TIME))
make_datetime(str, &ltime, 1, ltime.second_part,
tmp_format->format, tmp_format->format_length, 1))
return str;
null_date:
......@@ -1553,9 +1839,12 @@ bool Item_time_typecast::get_time(TIME *ltime)
String *Item_time_typecast::val_str(String *str)
{
TIME ltime;
DATETIME_FORMAT *tmp_format= (&t_datetime_frm
(thd, TIME_FORMAT_TYPE).datetime_format);
if (!get_arg0_time(&ltime) &&
make_datetime(str, &ltime, ltime.second_part ? TIME_MICROSECOND : TIME_ONLY))
make_datetime(str, &ltime, 0, ltime.second_part,
tmp_format->format, tmp_format->format_length, 1))
return str;
null_value=1;
......@@ -1574,9 +1863,12 @@ bool Item_date_typecast::get_date(TIME *ltime, bool fuzzy_date)
String *Item_date_typecast::val_str(String *str)
{
TIME ltime;
DATETIME_FORMAT *tmp_format= (&t_datetime_frm
(thd, DATE_FORMAT_TYPE).datetime_format);
if (!get_arg0_date(&ltime,1) &&
make_datetime(str, &ltime, DATE_ONLY))
make_datetime(str, &ltime, 1, 0,
tmp_format->format, tmp_format->format_length, 1))
return str;
null_date:
......@@ -1605,7 +1897,11 @@ String *Item_func_makedate::val_str(String *str)
{
null_value=0;
get_date_from_daynr(days,&l_time.year,&l_time.month,&l_time.day);
if (make_datetime(str, &l_time, DATE_ONLY))
DATETIME_FORMAT *tmp_format= (&t_datetime_frm
(thd, DATE_FORMAT_TYPE).datetime_format);
if (make_datetime(str, &l_time, 1, 0,
tmp_format->format, tmp_format->format_length, 1))
return str;
}
......@@ -1656,6 +1952,7 @@ String *Item_func_add_time::val_str(String *str)
bool is_time= 0;
long microseconds, seconds, days= 0;
int l_sign= sign;
DATETIME_FORMAT *tmp_format;
null_value=0;
l_time3.neg= 0;
......@@ -1720,19 +2017,21 @@ String *Item_func_add_time::val_str(String *str)
calc_time_from_sec(&l_time3, seconds, microseconds);
if (!is_time)
{
tmp_format= &t_datetime_frm(thd, DATETIME_FORMAT_TYPE).datetime_format;
get_date_from_daynr(days,&l_time3.year,&l_time3.month,&l_time3.day);
if (l_time3.day &&
make_datetime(str, &l_time3,
l_time1.second_part || l_time2.second_part ?
DATE_TIME_MICROSECOND : DATE_TIME))
make_datetime(str, &l_time3, 1,
l_time1.second_part || l_time2.second_part,
tmp_format->format, tmp_format->format_length, 1))
return str;
goto null_date;
}
tmp_format= &t_datetime_frm(thd, TIME_FORMAT_TYPE).datetime_format;
l_time3.hour+= days*24;
if (make_datetime(str, &l_time3,
l_time1.second_part || l_time2.second_part ?
TIME_MICROSECOND : TIME_ONLY))
if (make_datetime(str, &l_time3, 0,
l_time1.second_part || l_time2.second_part,
tmp_format->format, tmp_format->format_length, 1))
return str;
null_date:
......@@ -1755,6 +2054,7 @@ String *Item_func_timediff::val_str(String *str)
long days;
int l_sign= 1;
TIME l_time1 ,l_time2, l_time3;
DATETIME_FORMAT *tmp_format;
null_value= 0;
if (args[0]->get_time(&l_time1) ||
......@@ -1800,9 +2100,11 @@ String *Item_func_timediff::val_str(String *str)
l_time3.neg= l_time3.neg ? 0 : 1;
calc_time_from_sec(&l_time3, seconds, microseconds);
if (make_datetime(str, &l_time3,
l_time1.second_part || l_time2.second_part ?
TIME_MICROSECOND : TIME_ONLY))
tmp_format= &t_datetime_frm(thd, TIME_FORMAT_TYPE).datetime_format;
if (make_datetime(str, &l_time3, 0,
l_time1.second_part || l_time2.second_part,
tmp_format->format, tmp_format->format_length, 1))
return str;
null_date:
......@@ -1819,6 +2121,7 @@ String *Item_func_timediff::val_str(String *str)
String *Item_func_maketime::val_str(String *str)
{
TIME ltime;
DATETIME_FORMAT *tmp_format;
long hour= args[0]->val_int();
long minute= args[1]->val_int();
......@@ -1840,7 +2143,9 @@ String *Item_func_maketime::val_str(String *str)
ltime.hour= (ulong)hour;
ltime.minute= (ulong)minute;
ltime.second= (ulong)second;
if (make_datetime(str, &ltime, TIME_ONLY))
tmp_format= &t_datetime_frm(thd, TIME_FORMAT_TYPE).datetime_format;
if (make_datetime(str, &ltime, 0, 0,
tmp_format->format, tmp_format->format_length, 1))
return str;
null_date:
......@@ -1860,3 +2165,79 @@ longlong Item_func_microsecond::val_int()
return ltime.second_part;
return 0;
}
/*
Array of MySQL date/time/datetime formats
Firts element is date format
Second element is time format
Third element is datetime format
Fourth is format name.
*/
const char *datetime_formats[4][5]=
{
{"%m.%d.%Y", "%Y-%m-%d", "%Y-%m-%d", "%d.%m.%Y", "%Y%m%d"},
{"%h:%i:%s %p", "%H:%i:%s", "%H:%i:%s", "%H.%i.%S", "%H%i%s"},
{"%Y-%m-%d-%H.%i.%s", "%Y-%m-%d %H:%i:%s", "%Y-%m-%d %H:%i:%s", "%Y-%m-%d-%H.%i.%s", "%Y%m%d%H%i%s"},
{"USA", "JIS", "ISO", "EUR", "INTERNAL"}
};
/*
Return format string according format name.
If name is unknown, result is ISO format string
*/
String *Item_func_get_format::val_str(String *str)
{
String *val=args[0]->val_str(str);
const char *format_str= datetime_formats[tm_format][ISO_FORMAT];
if (!args[0]->null_value)
{
const char *val_ptr= val->ptr();
uint val_len= val->length();
for (int i= 0; i < 5; i++)
{
const char *name_format_str= datetime_formats[3][i];
uint format_str_len= strlen(name_format_str);
if ( val_len == format_str_len &&
!my_strnncoll(&my_charset_latin1,
(const uchar *) val_ptr, val_len,
(const uchar *) name_format_str, format_str_len))
{
format_str= datetime_formats[tm_format][i];
break;
}
}
}
null_value= 0;
str->length(0);
str->append(format_str);
return str;
}
String *Item_func_str_to_date::val_str(String *str)
{
TIME ltime;
bzero((char*) &ltime, sizeof(ltime));
DATETIME_FORMAT *tmp_format;
String *val=args[0]->val_str(str);
String *format=args[1]->val_str(str);
if (args[0]->null_value || args[1]->null_value ||
extract_datetime(val->ptr(), val->length(),
format->ptr(), val->length(),
&ltime))
goto null_date;
tmp_format= &t_datetime_frm(thd, DATETIME_FORMAT_TYPE).datetime_format;
if (make_datetime(str, &ltime, 0, 0, tmp_format->format,
tmp_format->format_length, 1))
return str;
null_date:
null_value=1;
return 0;
}
sql/item_timefunc.h
View file @ 299fc6a9
......@@ -763,3 +763,46 @@ class Item_func_microsecond :public Item_int_func
maybe_null=1;
}
};
enum datetime_format
{
USA_FORMAT, JIS_FORMAT, ISO_FORMAT, EUR_FORMAT, INTERNAL_FORMAT
};
enum datetime_format_types
{
DATE_FORMAT_TYPE= 0, TIME_FORMAT_TYPE, DATETIME_FORMAT_TYPE
};
class Item_func_get_format :public Item_str_func
{
const datetime_format_types tm_format;
public:
Item_func_get_format(datetime_format_types type_arg1, Item *a)
:Item_str_func(a), tm_format(type_arg1) {}
String *val_str(String *str);
const char *func_name() const { return "get_format"; }
void fix_length_and_dec()
{
decimals=0;
max_length=17*MY_CHARSET_BIN_MB_MAXLEN;
}
};
class Item_func_str_to_date :public Item_str_func
{
public:
Item_func_str_to_date(Item *a, Item *b)
:Item_str_func(a, b) {}
String *val_str(String *str);
const char *func_name() const { return "str_to_date"; }
void fix_length_and_dec()
{
decimals=0;
max_length=29*MY_CHARSET_BIN_MB_MAXLEN;
}
};
sql/lex.h
View file @ 299fc6a9
......@@ -176,6 +176,7 @@ static SYMBOL symbols[] = {
{ "FUNCTION", SYM(UDF_SYM),0,0},
{ "GEOMETRY", SYM(GEOMETRY_SYM),0,0},
{ "GEOMETRYCOLLECTION",SYM(GEOMETRYCOLLECTION),0,0},
{ "GET_FORMAT", SYM(GET_FORMAT),0,0},
{ "GLOBAL", SYM(GLOBAL_SYM),0,0},
{ "GRANT", SYM(GRANT),0,0},
{ "GRANTS", SYM(GRANTS),0,0},
......@@ -634,6 +635,7 @@ static SYMBOL sql_functions[] = {
{ "STARTPOINT", SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_startpoint)},
{ "STD", SYM(STD_SYM),0,0},
{ "STDDEV", SYM(STD_SYM),0,0},
{ "STR_TO_DATE", SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_str_to_date)},
{ "STRCMP", SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_strcmp)},
{ "SUBSTR", SYM(SUBSTRING),0,0},
{ "SUBSTRING", SYM(SUBSTRING),0,0},
......
sql/mysql_priv.h
View file @ 299fc6a9
......@@ -800,6 +800,13 @@ extern struct system_variables global_system_variables;
extern struct system_variables max_system_variables;
extern struct rand_struct sql_rand;
#define g_datetime_frm(a) (global_system_variables.datetime_formats[(a)])
#define t_datetime_frm(a, b) ((a)->variables.datetime_formats[(b)])
extern const char *datetime_formats[4][5];
extern const char *opt_datetime_format_names[3];
extern const char *opt_datetime_formats[3];
/* optional things, have_* variables */
extern SHOW_COMP_OPTION have_isam, have_innodb, have_berkeley_db;
......@@ -863,14 +870,24 @@ void get_date_from_daynr(long daynr,uint *year, uint *month,
uint *day);
void init_time(void);
long my_gmt_sec(TIME *, long *current_timezone);
time_t str_to_timestamp(const char *str,uint length);
bool str_to_time(const char *str,uint length,TIME *l_time);
longlong str_to_datetime(const char *str,uint length,bool fuzzy_date);
time_t str_to_timestamp(const char *str,uint length, THD *thd);
bool str_to_time(const char *str,uint length,TIME *l_time, THD *thd);
longlong str_to_datetime(const char *str,uint length,bool fuzzy_date, THD *thd);
timestamp_type str_to_TIME(const char *str, uint length, TIME *l_time,
bool fuzzy_date);
bool fuzzy_date, THD *thd);
void localtime_to_TIME(TIME *to, struct tm *from);
void calc_time_from_sec(TIME *to, long seconds, long microseconds);
extern DATETIME_FORMAT *make_format(DATETIME_FORMAT *datetime_format,
datetime_format_types format_type,
const char *format_str,
uint format_length, bool is_alloc);
extern String *make_datetime(String *str, TIME *l_time,
const bool is_time_only,
const bool add_second_frac,
const char *ptr, uint format_length,
bool set_len_to_zero);
int test_if_number(char *str,int *res,bool allow_wildcards);
void change_byte(byte *,uint,char,char);
extern "C" void unireg_abort(int exit_code);
......
sql/mysqld.cc
View file @ 299fc6a9
......@@ -310,6 +310,12 @@ char* log_error_file_ptr= log_error_file;
char mysql_real_data_home[FN_REFLEN],
language[LIBLEN],reg_ext[FN_EXTLEN], mysql_charsets_dir[FN_REFLEN],
max_sort_char,*mysqld_user,*mysqld_chroot, *opt_init_file;
const char *opt_datetime_formats[3];
const char *opt_datetime_format_names[3]= {"date_format",
"time_format",
"datetime_format"};
char *language_ptr, *default_collation_name, *default_character_set_name;
char mysql_data_home_buff[2], *mysql_data_home=mysql_real_data_home;
char server_version[SERVER_VERSION_LENGTH]=MYSQL_SERVER_VERSION;
......@@ -893,6 +899,9 @@ void clean_up(bool print_message)
#ifdef USE_RAID
end_raid();
#endif
g_datetime_frm(DATE_FORMAT_TYPE).clean();
g_datetime_frm(TIME_FORMAT_TYPE).clean();
g_datetime_frm(DATETIME_FORMAT_TYPE).clean();
if (defaults_argv)
free_defaults(defaults_argv);
free_tmpdir(&mysql_tmpdir_list);
......@@ -1976,6 +1985,36 @@ bool open_log(MYSQL_LOG *log, const char *hostname,
}
int init_global_datetime_format(datetime_format_types format_type, bool is_alloc)
{
const char *format_str= opt_datetime_formats[format_type];
uint format_length= 0;
DATETIME_FORMAT *tmp_format= &g_datetime_frm(format_type).datetime_format;
if (format_str)
{
format_str= opt_datetime_formats[format_type];
format_length= strlen(format_str);
}
else
{
format_str= datetime_formats[format_type][ISO_FORMAT];
format_length= strlen(datetime_formats[format_type][ISO_FORMAT]);
opt_datetime_formats[format_type]= format_str;
}
if (make_format(tmp_format, format_type, format_str,
format_length, is_alloc))
{
g_datetime_frm(format_type).name= opt_datetime_format_names[format_type];
g_datetime_frm(format_type).name_length=
strlen(opt_datetime_format_names[format_type]);
g_datetime_frm(format_type).format_type= format_type;
return 0;
}
return 1;
}
static int init_common_variables(const char *conf_file_name, int argc,
char **argv, const char **groups)
{
......@@ -2089,6 +2128,11 @@ static int init_common_variables(const char *conf_file_name, int argc,
global_system_variables.character_set_client= default_charset_info;
global_system_variables.collation_connection= default_charset_info;
if (init_global_datetime_format(DATE_FORMAT_TYPE, 1) ||
init_global_datetime_format(TIME_FORMAT_TYPE, 1) ||
init_global_datetime_format(DATETIME_FORMAT_TYPE, 1))
return 1;
if (use_temp_pool && bitmap_init(&temp_pool,1024,1))
return 1;
return 0;
......@@ -3533,7 +3577,10 @@ enum options
OPT_DEFAULT_WEEK_FORMAT,
OPT_GROUP_CONCAT_MAX_LEN,
OPT_DEFAULT_COLLATION,
OPT_SECURE_AUTH
OPT_SECURE_AUTH,
OPT_DATE_FORMAT,
OPT_TIME_FORMAT,
OPT_DATETIME_FORMAT
};
......@@ -4444,6 +4491,21 @@ The minimum value for this variable is 4096.",
(gptr*) &global_system_variables.default_week_format,
(gptr*) &max_system_variables.default_week_format,
0, GET_ULONG, REQUIRED_ARG, 0, 0, 3L, 0, 1, 0},
{ "date-format", OPT_DATE_FORMAT,
"The DATE format.",
(gptr*) &opt_datetime_formats[DATE_FORMAT_TYPE],
(gptr*) &opt_datetime_formats[DATE_FORMAT_TYPE],
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{ "datetime-format", OPT_DATETIME_FORMAT,
"The DATETIME/TIMESTAMP format.",
(gptr*) &opt_datetime_formats[DATETIME_FORMAT_TYPE],
(gptr*) &opt_datetime_formats[DATETIME_FORMAT_TYPE],
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{ "time-format", OPT_TIME_FORMAT,
"The TIME format.",
(gptr*) &opt_datetime_formats[TIME_FORMAT_TYPE],
(gptr*) &opt_datetime_formats[TIME_FORMAT_TYPE],
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
};
......@@ -4821,6 +4883,10 @@ static void mysql_init_variables(void)
max_system_variables.max_join_size= (ulonglong) HA_POS_ERROR;
global_system_variables.old_passwords= 0;
init_global_datetime_format(DATE_FORMAT_TYPE, 0);
init_global_datetime_format(TIME_FORMAT_TYPE, 0);
init_global_datetime_format(DATETIME_FORMAT_TYPE, 0);
/* Variables that depends on compile options */
#ifndef DBUG_OFF
default_dbug_option=IF_WIN("d:t:i:O,\\mysqld.trace",
......
sql/protocol.cc
View file @ 299fc6a9
......@@ -831,17 +831,12 @@ bool Protocol_simple::store(TIME *tm)
field_pos++;
#endif
char buff[40];
uint length;
length= my_sprintf(buff,(buff, "%04d-%02d-%02d %02d:%02d:%02d",
(int) tm->year,
(int) tm->month,
(int) tm->day,
(int) tm->hour,
(int) tm->minute,
(int) tm->second));
if (tm->second_part)
length+= my_sprintf(buff+length,(buff+length, ".%06d", (int)tm->second_part));
return net_store_data((char*) buff, length);
String tmp((char*) buff,sizeof(buff),&my_charset_bin);
DATETIME_FORMAT *tmp_format= (&t_datetime_frm
(current_thd, DATETIME_FORMAT_TYPE).datetime_format);
make_datetime(&tmp, tm, 1, tm->second_part,
tmp_format->format, tmp_format->format_length, 1);
return net_store_data((char*) tmp.ptr(), tmp.length());
}
......@@ -853,12 +848,12 @@ bool Protocol_simple::store_date(TIME *tm)
field_pos++;
#endif
char buff[40];
uint length;
length= my_sprintf(buff,(buff, "%04d-%02d-%02d",
(int) tm->year,
(int) tm->month,
(int) tm->day));
return net_store_data((char*) buff, length);
String tmp((char*) buff,sizeof(buff),&my_charset_bin);
DATETIME_FORMAT *tmp_format= (&t_datetime_frm
(current_thd, DATE_FORMAT_TYPE).datetime_format);
make_datetime(&tmp, tm, 1, 0,
tmp_format->format, tmp_format->format_length, 1);
return net_store_data((char*) tmp.ptr(), tmp.length());
}
......@@ -876,16 +871,14 @@ bool Protocol_simple::store_time(TIME *tm)
field_pos++;
#endif
char buff[40];
uint length;
String tmp((char*) buff,sizeof(buff),&my_charset_bin);
DATETIME_FORMAT *tmp_format= (&t_datetime_frm
(current_thd, TIME_FORMAT_TYPE).datetime_format);
uint day= (tm->year || tm->month) ? 0 : tm->day;
length= my_sprintf(buff,(buff, "%s%02ld:%02d:%02d",
tm->neg ? "-" : "",
(long) day*24L+(long) tm->hour,
(int) tm->minute,
(int) tm->second));
if (tm->second_part)
length+= my_sprintf(buff+length,(buff+length, ".%06d", (int)tm->second_part));
return net_store_data((char*) buff, length);
tm->hour= (long) day*24L+(long) tm->hour;
make_datetime(&tmp, tm, 0, tm->second_part,
tmp_format->format, tmp_format->format_length, 1);
return net_store_data((char*) tmp.ptr(), tmp.length());
}
......
sql/set_var.cc
View file @ 299fc6a9
......@@ -383,6 +383,9 @@ sys_var *sys_variables[]=
&sys_collation_connection,
&sys_concurrent_insert,
&sys_connect_timeout,
&g_datetime_frm(DATE_FORMAT_TYPE),
&g_datetime_frm(DATETIME_FORMAT_TYPE),
&g_datetime_frm(TIME_FORMAT_TYPE),
&sys_default_week_format,
&sys_delay_key_write,
&sys_delayed_insert_limit,
......@@ -512,6 +515,8 @@ struct show_var_st init_vars[]= {
{sys_concurrent_insert.name,(char*) &sys_concurrent_insert, SHOW_SYS},
{sys_connect_timeout.name, (char*) &sys_connect_timeout, SHOW_SYS},
{"datadir", mysql_real_data_home, SHOW_CHAR},
{"date_format", (char*) &g_datetime_frm(DATE_FORMAT_TYPE), SHOW_SYS},
{"datetime_format", (char*) &g_datetime_frm(DATETIME_FORMAT_TYPE), SHOW_SYS},
{"default_week_format", (char*) &sys_default_week_format, SHOW_SYS},
{sys_delay_key_write.name, (char*) &sys_delay_key_write, SHOW_SYS},
{sys_delayed_insert_limit.name, (char*) &sys_delayed_insert_limit,SHOW_SYS},
......@@ -661,6 +666,7 @@ struct show_var_st init_vars[]= {
#endif
{"thread_stack", (char*) &thread_stack, SHOW_LONG},
{sys_tx_isolation.name, (char*) &sys_tx_isolation, SHOW_SYS},
{"time_format", (char*) &g_datetime_frm(TIME_FORMAT_TYPE), SHOW_SYS},
#ifdef HAVE_TZNAME
{"timezone", time_zone, SHOW_CHAR},
#endif
......@@ -671,9 +677,75 @@ struct show_var_st init_vars[]= {
{NullS, NullS, SHOW_LONG}
};
/*
Functions to check and update variables
*/
char *update_datetime_format(THD *thd, enum enum_var_type type,
enum datetime_format_types format_type,
DATETIME_FORMAT *tmp_format)
{
char *old_value;
if (type == OPT_GLOBAL)
{
pthread_mutex_lock(&LOCK_global_system_variables);
old_value= g_datetime_frm(format_type).datetime_format.format;
g_datetime_frm(format_type).datetime_format= *tmp_format;
pthread_mutex_unlock(&LOCK_global_system_variables);
}
else
{
old_value= t_datetime_frm(thd,format_type).datetime_format.format;
t_datetime_frm(thd, format_type).datetime_format= *tmp_format;
}
return old_value;
}
bool sys_var_datetime_format::update(THD *thd, set_var *var)
{
DATETIME_FORMAT tmp_format;
char *old_value;
uint new_length;
if ((new_length= var->value->str_value.length()))
{
if (!make_format(&tmp_format, format_type,
var->value->str_value.ptr(),
new_length, 1))
return 1;
}
old_value= update_datetime_format(thd, var->type, format_type, &tmp_format);
my_free(old_value, MYF(MY_ALLOW_ZERO_PTR));
return 0;
}
byte *sys_var_datetime_format::value_ptr(THD *thd, enum_var_type type,
LEX_STRING *base)
{
if (type == OPT_GLOBAL)
return (byte*) g_datetime_frm(format_type).datetime_format.format;
return (byte*) t_datetime_frm(thd, format_type).datetime_format.format;
}
void sys_var_datetime_format::set_default(THD *thd, enum_var_type type)
{
DATETIME_FORMAT tmp_format;
char *old_value;
uint new_length;
if ((new_length= strlen(opt_datetime_formats[format_type])))
{
if (!make_format(&tmp_format, format_type,
opt_datetime_formats[format_type],
new_length, 1))
return;
}
old_value= update_datetime_format(thd, type, format_type, &tmp_format);
my_free(old_value, MYF(MY_ALLOW_ZERO_PTR));
}
/*
The following 3 functions need to be changed in 4.1 when we allow
......
sql/set_var.h
View file @ 299fc6a9
......@@ -49,6 +49,8 @@ class sys_var
const char *name;
sys_after_update_func after_update;
sys_var()
{}
sys_var(const char *name_arg) :name(name_arg),after_update(0)
{}
sys_var(const char *name_arg,sys_after_update_func func)
......@@ -188,6 +190,9 @@ class sys_var_enum :public sys_var
class sys_var_thd :public sys_var
{
public:
sys_var_thd()
:sys_var()
{}
sys_var_thd(const char *name_arg)
:sys_var(name_arg)
{}
......@@ -538,6 +543,51 @@ class sys_var_key_buffer_size :public sys_var
};
class sys_var_datetime_format :public sys_var_thd
{
public:
enum datetime_format_types format_type;
DATETIME_FORMAT datetime_format;
sys_var_datetime_format(): sys_var_thd()
{}
void clean()
{
my_free(datetime_format.format, MYF(MY_ALLOW_ZERO_PTR));
datetime_format.format=0;
}
/*
It's for copying of global_system_variables structure
in THD constructor.
*/
inline sys_var_datetime_format& operator= (sys_var_datetime_format& s)
{
if (&s != this)
{
name= s.name; name_length= s.name_length;
datetime_format= s.datetime_format;
datetime_format.format= (my_strdup_with_length
(s.datetime_format.format,
s.datetime_format.
format_length, MYF(0)));
format_type= s.format_type;
}
return *this;
}
SHOW_TYPE type() { return SHOW_CHAR; }
bool check_update_type(Item_result type)
{
return type != STRING_RESULT; /* Only accept strings */
}
bool check_default(enum_var_type type) { return 0; }
bool update(THD *thd, set_var *var);
byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
void set_default(THD *thd, enum_var_type type);
};
/* Variable that you can only read from */
class sys_var_readonly: public sys_var
......
sql/sql_class.cc
View file @ 299fc6a9
......@@ -274,6 +274,9 @@ void THD::cleanup(void)
close_thread_tables(this);
}
close_temporary_tables(this);
variables.datetime_formats[DATE_FORMAT_TYPE].clean();
variables.datetime_formats[TIME_FORMAT_TYPE].clean();
variables.datetime_formats[DATETIME_FORMAT_TYPE].clean();
delete_dynamic(&user_var_events);
hash_free(&user_vars);
if (global_read_lock)
......
sql/sql_class.h
View file @ 299fc6a9
......@@ -406,6 +406,7 @@ struct system_variables
CHARSET_INFO *character_set_client;
CHARSET_INFO *character_set_results;
CHARSET_INFO *collation_connection;
sys_var_datetime_format datetime_formats[3];
};
void free_tmp_table(THD *thd, TABLE *entry);
......
sql/sql_yacc.yy
View file @ 299fc6a9
......@@ -79,6 +79,7 @@ inline Item *or_or_concat(THD *thd, Item* A, Item* B)
CHARSET_INFO *charset;
thr_lock_type lock_type;
interval_type interval;
datetime_format_types datetime_format_type;
st_select_lex *select_lex;
chooser_compare_func_creator boolfunc2creator;
}
......@@ -477,6 +478,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
%token GEOMETRYCOLLECTION
%token GROUP_CONCAT_SYM
%token GROUP_UNIQUE_USERS
%token GET_FORMAT
%token HOUR_MICROSECOND_SYM
%token HOUR_MINUTE_SYM
%token HOUR_SECOND_SYM
......@@ -639,6 +641,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
UDF_CHAR_FUNC UDF_FLOAT_FUNC UDF_INT_FUNC
UDA_CHAR_SUM UDA_FLOAT_SUM UDA_INT_SUM
%type <datetime_format_type> datetime_format_type;
%type <interval> interval
%type <db_type> table_types
......@@ -2529,6 +2532,8 @@ simple_expr:
{ $$= new Item_func_spatial_collection(* $3,
Geometry::wkbGeometryCollection,
Geometry::wkbPoint); }
| GET_FORMAT '(' datetime_format_type ',' expr ')'
{ $$= new Item_func_get_format($3, $5); }
| HOUR_SYM '(' expr ')'
{ $$= new Item_func_hour($3); }
| IF '(' expr ',' expr ',' expr ')'
......@@ -3133,6 +3138,11 @@ interval:
| YEAR_MONTH_SYM { $$=INTERVAL_YEAR_MONTH; }
| YEAR_SYM { $$=INTERVAL_YEAR; };
datetime_format_type:
DATE_SYM {$$=DATE_FORMAT_TYPE;}
| TIME_SYM {$$=TIME_FORMAT_TYPE;}
| DATETIME {$$=DATETIME_FORMAT_TYPE;};
table_alias:
/* empty */
| AS
......@@ -4479,6 +4489,7 @@ keyword:
| FLUSH_SYM {}
| GEOMETRY_SYM {}
| GEOMETRYCOLLECTION {}
| GET_FORMAT {}
| GRANTS {}
| GLOBAL_SYM {}
| HANDLER_SYM {}
......
sql/structs.h
View file @ 299fc6a9
......@@ -24,6 +24,11 @@ typedef struct st_date_format { /* How to print date */
uint pos[6]; /* Positions to YY.MM.DD HH:MM:SS */
} DATE_FORMAT;
typedef struct st_datetime_format {
byte dt_pos[8];
char *format;
uint format_length;
} DATETIME_FORMAT;
typedef struct st_keyfile_info { /* used with ha_info() */
byte ref[MAX_REFLENGTH]; /* Pointer to current row */
......@@ -110,8 +115,8 @@ typedef struct st_read_record { /* Parameter to read_record */
bool print_error, ignore_not_found_rows;
} READ_RECORD;
enum timestamp_type { TIMESTAMP_NONE, TIMESTAMP_DATE, TIMESTAMP_FULL,
TIMESTAMP_TIME };
enum timestamp_type { TIMESTAMP_NONE, WRONG_TIMESTAMP_FULL, TIMESTAMP_DATE, TIMESTAMP_FULL,
TIMESTAMP_TIME};
typedef struct st_time {
uint year,month,day,hour,minute,second;
......
sql/time.cc
View file @ 299fc6a9
......@@ -27,6 +27,10 @@ uchar *days_in_month= (uchar*) "\037\034\037\036\037\036\037\037\036\037\036\037
/* Init some variabels needed when using my_local_time */
/* Currently only my_time_zone is inited */
bool parse_datetime_formats(datetime_format_types format_type,
const char *format_str, uint format_length,
byte *dt_pos);
static long my_time_zone=0;
void init_time(void)
......@@ -316,10 +320,12 @@ ulong convert_month_to_period(ulong month)
*/
timestamp_type
str_to_TIME(const char *str, uint length, TIME *l_time,bool fuzzy_date)
str_to_TIME(const char *str, uint length, TIME *l_time,bool fuzzy_date,THD *thd)
{
uint field_length,year_length,digits,i,number_of_fields,date[7];
uint field_length= 0, year_length= 0, digits, i, number_of_fields;
uint date[7], date_len[7];
uint not_zero_date;
bool is_internal_format= 0;
const char *pos;
const char *end=str+length;
bool found_delimitier= 0;
......@@ -336,24 +342,32 @@ str_to_TIME(const char *str, uint length, TIME *l_time,bool fuzzy_date)
(YYYY-MM-DD, YYYYMMDD, YYYYYMMDDHHMMSS)
*/
for (pos=str; pos != end && my_isdigit(&my_charset_latin1,*pos) ; pos++) ;
/* Check for internal format */
digits= (uint) (pos-str);
if (pos == end || digits>=12)
{
is_internal_format= 1;
year_length= (digits == 4 || digits == 8 || digits >= 14) ? 4 : 2;
field_length=year_length-1;
date_len[0]= year_length;
}
not_zero_date= 0;
for (i=0 ; i < 6 && str != end && my_isdigit(&my_charset_latin1,*str) ; i++)
{
if (!is_internal_format)
date_len[i]= 1;
uint tmp_value=(uint) (uchar) (*str++ - '0');
while (str != end && my_isdigit(&my_charset_latin1,str[0]) &&
field_length--)
while (str != end && my_isdigit(&my_charset_latin1,str[0])
&& (is_internal_format && field_length-- || !is_internal_format) )
{
tmp_value=tmp_value*10 + (uint) (uchar) (*str - '0');
str++;
if (!is_internal_format)
date_len[i]+= 1;
}
if (found_delimitier && (int) field_length < 0)
{
/* The number can't match any valid date or datetime string */
if (i == 2 && *str == '.')
DBUG_RETURN(TIMESTAMP_NONE);
}
date[i]=tmp_value;
not_zero_date|= tmp_value;
if (i == 2 && str != end && *str == 'T')
......@@ -371,6 +385,7 @@ str_to_TIME(const char *str, uint length, TIME *l_time,bool fuzzy_date)
found_delimitier=1; // Should be a 'normal' date
}
}
if (is_internal_format)
field_length=1; // Rest fields can only be 2
}
/* Handle second fractions */
......@@ -389,14 +404,69 @@ str_to_TIME(const char *str, uint length, TIME *l_time,bool fuzzy_date)
else
date[6]=0;
if (year_length == 2 && i >=2 && (date[1] || date[2]))
date[0]+= (date[0] < YY_PART_YEAR ? 2000 : 1900);
while (str != end && (my_ispunct(&my_charset_latin1,*str) ||
my_isspace(&my_charset_latin1,*str)))
str++;
uint add_hours= 0;
if (!my_strnncoll(&my_charset_latin1,
(const uchar *)str, 2,
(const uchar *)"PM", 2))
add_hours= 12;
number_of_fields=i;
while (i < 6)
date[i++]=0;
if (number_of_fields < 3 || date[1] > 12 ||
date[2] > 31 || date[3] > 23 || date[4] > 59 || date[5] > 59 ||
(!fuzzy_date && (date[1] == 0 || date[2] == 0)))
if (!is_internal_format)
{
byte *frm_pos;
if (number_of_fields <= 3)
{
frm_pos= t_datetime_frm(thd, DATE_FORMAT_TYPE).datetime_format.dt_pos;
l_time->hour= 0;
l_time->minute= 0;
l_time->second= 0;
}
else
{
frm_pos= t_datetime_frm(thd, DATETIME_FORMAT_TYPE).datetime_format.dt_pos;
l_time->hour= date[(int) frm_pos[3]];
l_time->minute=date[(int) frm_pos[4]];
l_time->second=date[(int) frm_pos[5]];
if (frm_pos[6] == 1)
{
if (l_time->hour > 12)
DBUG_RETURN(WRONG_TIMESTAMP_FULL);
l_time->hour= l_time->hour%12 + add_hours;
}
}
l_time->year= date[(int) frm_pos[0]];
l_time->month= date[(int) frm_pos[1]];
l_time->day= date[(int) frm_pos[2]];
year_length= date_len[(int) frm_pos[0]];
}
else
{
l_time->year= date[0];
l_time->month= date[1];
l_time->day= date[2];
l_time->hour= date[3];
l_time->minute=date[4];
l_time->second=date[5];
}
l_time->second_part=date[6];
l_time->neg= 0;
if (year_length == 2 && i >=2 && (l_time->month || l_time->day))
l_time->year+= (l_time->year < YY_PART_YEAR ? 2000 : 1900);
if (number_of_fields < 3 || l_time->month > 12 ||
l_time->day > 31 || l_time->hour > 23 ||
l_time->minute > 59 || l_time->second > 59 ||
(!fuzzy_date && (l_time->month == 0 || l_time->day == 0)))
{
/* Only give warning for a zero date if there is some garbage after */
if (!not_zero_date) // If zero date
......@@ -411,53 +481,46 @@ str_to_TIME(const char *str, uint length, TIME *l_time,bool fuzzy_date)
}
}
if (not_zero_date)
current_thd->cuted_fields++;
DBUG_RETURN(TIMESTAMP_NONE);
thd->cuted_fields++;
DBUG_RETURN(WRONG_TIMESTAMP_FULL);
}
if (str != end && current_thd->count_cuted_fields)
if (str != end && thd->count_cuted_fields)
{
for (; str != end ; str++)
{
if (!my_isspace(&my_charset_latin1,*str))
{
current_thd->cuted_fields++;
thd->cuted_fields++;
break;
}
}
}
l_time->year= date[0];
l_time->month= date[1];
l_time->day= date[2];
l_time->hour= date[3];
l_time->minute=date[4];
l_time->second=date[5];
l_time->second_part=date[6];
l_time->neg= 0;
DBUG_RETURN(l_time->time_type=
(number_of_fields <= 3 ? TIMESTAMP_DATE : TIMESTAMP_FULL));
}
time_t str_to_timestamp(const char *str,uint length)
time_t str_to_timestamp(const char *str,uint length, THD *thd)
{
TIME l_time;
long not_used;
if (str_to_TIME(str,length,&l_time,0) == TIMESTAMP_NONE)
if (str_to_TIME(str,length,&l_time,0,thd) <= WRONG_TIMESTAMP_FULL)
return(0);
if (l_time.year >= TIMESTAMP_MAX_YEAR || l_time.year < 1900+YY_PART_YEAR)
{
current_thd->cuted_fields++;
thd->cuted_fields++;
return(0);
}
return(my_gmt_sec(&l_time, &not_used));
}
longlong str_to_datetime(const char *str,uint length,bool fuzzy_date)
longlong str_to_datetime(const char *str,uint length,bool fuzzy_date, THD *thd)
{
TIME l_time;
if (str_to_TIME(str,length,&l_time,fuzzy_date) == TIMESTAMP_NONE)
if (str_to_TIME(str,length,&l_time,fuzzy_date,thd) <= WRONG_TIMESTAMP_FULL)
return(0);
return (longlong) (l_time.year*LL(10000000000) +
l_time.month*LL(100000000)+
......@@ -484,12 +547,13 @@ longlong str_to_datetime(const char *str,uint length,bool fuzzy_date)
1 error
*/
bool str_to_time(const char *str,uint length,TIME *l_time)
bool str_to_time(const char *str,uint length,TIME *l_time, THD *thd)
{
long date[5],value;
const char *end=str+length;
bool found_days,found_hours;
uint state;
byte *frm_pos= t_datetime_frm(thd, TIME_FORMAT_TYPE).datetime_format.dt_pos;
l_time->neg=0;
for (; str != end &&
......@@ -507,8 +571,11 @@ bool str_to_time(const char *str,uint length,TIME *l_time)
/* Check first if this is a full TIMESTAMP */
if (length >= 12)
{ // Probably full timestamp
if (str_to_TIME(str,length,l_time,1) == TIMESTAMP_FULL)
return 0; // Was an ok timestamp
enum timestamp_type tres= str_to_TIME(str,length,l_time,1,thd);
if (tres == TIMESTAMP_FULL)
return 0;
else if (tres == WRONG_TIMESTAMP_FULL)
return 1;
}
/* Not a timestamp. Try to get this as a DAYS_TO_SECOND string */
......@@ -533,7 +600,7 @@ bool str_to_time(const char *str,uint length,TIME *l_time)
found_days=1;
str++; // Skip space;
}
else if ((end-str) > 1 && *str == ':' &&
else if ((end-str) > 1 && *str == frm_pos[7] &&
my_isdigit(&my_charset_latin1,str[1]))
{
date[0]=0; // Assume we found hours
......@@ -559,7 +626,7 @@ bool str_to_time(const char *str,uint length,TIME *l_time)
for (value=0; str != end && my_isdigit(&my_charset_latin1,*str) ; str++)
value=value*10L + (long) (*str - '0');
date[state++]=value;
if (state == 4 || (end-str) < 2 || *str != ':' ||
if (state == 4 || (end-str) < 2 || *str != frm_pos[7] ||
!my_isdigit(&my_charset_latin1,str[1]))
break;
str++; // Skip ':'
......@@ -577,7 +644,6 @@ bool str_to_time(const char *str,uint length,TIME *l_time)
else
bzero((char*) (date+state), sizeof(long)*(4-state));
}
fractional:
/* Get fractional second part */
if ((end-str) >= 2 && *str == '.' && my_isdigit(&my_charset_latin1,str[1]))
......@@ -593,6 +659,20 @@ bool str_to_time(const char *str,uint length,TIME *l_time)
else
date[4]=0;
while (str != end && !my_isalpha(&my_charset_latin1,*str))
str++;
if ( (end-str)>= 2 &&
!my_strnncoll(&my_charset_latin1,
(const uchar *)str, 2,
(const uchar *)"PM", 2) &&
frm_pos[6] == 1)
{
uint days_i= date[1]/24;
uint hours_i= date[1]%24;
date[1]= hours_i%12 + 12 + 24*days_i;
}
/* Some simple checks */
if (date[2] >= 60 || date[3] >= 60)
{
......@@ -601,9 +681,9 @@ bool str_to_time(const char *str,uint length,TIME *l_time)
}
l_time->month=0;
l_time->day=date[0];
l_time->hour=date[1];
l_time->minute=date[2];
l_time->second=date[3];
l_time->hour=date[frm_pos[3] + 1];
l_time->minute=date[frm_pos[4] + 1];
l_time->second=date[frm_pos[5] + 1];
l_time->second_part=date[4];
l_time->time_type= TIMESTAMP_TIME;
......@@ -648,3 +728,165 @@ void calc_time_from_sec(TIME *to, long seconds, long microseconds)
to->second= t_seconds%60L;
to->second_part= microseconds;
}
DATETIME_FORMAT *make_format(DATETIME_FORMAT *datetime_format,
datetime_format_types format_type,
const char *format_str,
uint format_length, bool is_alloc)
{
if (format_length &&
!parse_datetime_formats(format_type, format_str,
format_length,
datetime_format->dt_pos))
{
if (is_alloc)
{
if (!(datetime_format->format= my_strdup_with_length(format_str,
format_length,
MYF(0))))
return 0;
}
else
datetime_format->format= (char *) format_str;
datetime_format->format_length= format_length;
return datetime_format;
}
return 0;
}
bool parse_datetime_formats(datetime_format_types format_type,
const char *format_str, uint format_length,
byte *dt_pos)
{
uint pos= 0;
dt_pos[0]= dt_pos[1]= dt_pos[2]= dt_pos[3]=
dt_pos[4]= dt_pos[5]= dt_pos[6]= dt_pos[7]= -1;
const char *ptr=format_str;
const char *end=ptr+format_length;
bool need_p= 0;
for (; ptr != end; ptr++)
{
if (*ptr == '%' && ptr+1 != end)
{
switch (*++ptr) {
case 'y':
case 'Y':
if (dt_pos[0] > -1)
return 1;
dt_pos[0]= pos;
break;
case 'c':
case 'm':
if (dt_pos[1] > -1)
return 1;
dt_pos[1]= pos;
break;
case 'd':
case 'e':
if (dt_pos[2] > -1)
return 1;
dt_pos[2]= pos;
break;
case 'H':
case 'k':
case 'h':
case 'I':
case 'l':
if (dt_pos[3] > -1)
return 1;
dt_pos[3]= pos;
need_p= (*ptr == 'h' || *ptr == 'l' || *ptr == 'I');
break;
case 'i':
if (dt_pos[4] > -1)
return 1;
dt_pos[4]= pos;
break;
case 's':
case 'S':
if (dt_pos[5] > -1)
return 1;
dt_pos[5]= pos;
break;
case 'p':
if (dt_pos[6] > -1)
return 1;
/* %p should be last in format string */
if (format_type == DATE_FORMAT_TYPE ||
(pos != 6 && format_type == DATETIME_FORMAT_TYPE) ||
(pos != 3 && format_type == TIME_FORMAT_TYPE))
return 1;
dt_pos[6]= 1;
break;
default:
return 1;
}
if (dt_pos[6] == -1)
pos++;
}
}
if (pos > 5 && format_type == DATETIME_FORMAT_TYPE &&
(dt_pos[0] + dt_pos[1] + dt_pos[2] +
dt_pos[3] + dt_pos[4] + dt_pos[5] != 15) ||
pos > 2 && format_type == DATE_FORMAT_TYPE &&
(dt_pos[0] + dt_pos[1] + dt_pos[2] != 3) ||
pos > 2 && format_type == TIME_FORMAT_TYPE &&
(dt_pos[3] + dt_pos[4] + dt_pos[5] != 3) ||
(need_p && dt_pos[6] != 1))
return 1;
/*
Check for valid separators between date/time parst
*/
uint tmp_len= format_length;
if (dt_pos[6] == 1)
{
end= end - 2;
if (my_ispunct(&my_charset_latin1, *end) || my_isspace(&my_charset_latin1, *end))
end--;
tmp_len= end - format_str;
}
switch (format_type) {
case DATE_FORMAT_TYPE:
case TIME_FORMAT_TYPE:
if ((tmp_len == 6 &&
!my_strnncoll(&my_charset_bin,
(const uchar *) format_str, 6,
(const uchar *) datetime_formats
[format_type][INTERNAL_FORMAT], 6)) ||
tmp_len == 8 &&
my_ispunct(&my_charset_latin1, *(format_str+2)) &&
my_ispunct(&my_charset_latin1, *(format_str+5)))
{
if (format_type == TIME_FORMAT_TYPE && tmp_len == 8)
{
if (*(format_str+2) != *(format_str+5))
return 1;
dt_pos[7]= *(format_str+2);
}
return 0;
}
break;
case DATETIME_FORMAT_TYPE:
if ((tmp_len == 12 &&
!my_strnncoll(&my_charset_bin,
(const uchar *) format_str, 12,
(const uchar *) datetime_formats
[DATETIME_FORMAT_TYPE][INTERNAL_FORMAT], 12)) ||
tmp_len == 17 &&
my_ispunct(&my_charset_latin1, *(format_str+2)) &&
my_ispunct(&my_charset_latin1, *(format_str+5)) &&
my_ispunct(&my_charset_latin1, *(format_str+11)) &&
my_ispunct(&my_charset_latin1, *(format_str+14)) &&
(my_ispunct(&my_charset_latin1, *(format_str+8)) ||
my_isspace(&my_charset_latin1, *(format_str+8))))
return 0;
break;
}
return 1;
}
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