18
18
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22
#include <boost/lexical_cast.hpp>
22
#include <drizzled/server_includes.h>
23
23
#include <drizzled/field/timestamp.h>
24
24
#include <drizzled/error.h>
25
25
#include <drizzled/tztime.h>
26
26
#include <drizzled/table.h>
27
27
#include <drizzled/session.h>
33
#include "drizzled/temporal.h"
30
#if defined(CMATH_NAMESPACE)
31
using namespace CMATH_NAMESPACE;
39
35
TIMESTAMP type holds datetime values in range from 1970-01-01 00:00:01 UTC to
78
74
course is non-standard.) In most cases user won't notice any change, only
79
75
exception is different behavior of old/new timestamps during ALTER TABLE.
81
78
Field_timestamp::Field_timestamp(unsigned char *ptr_arg,
83
unsigned char *null_ptr_arg,
84
unsigned char null_bit_arg,
80
unsigned char *null_ptr_arg, unsigned char null_bit_arg,
85
81
enum utype unireg_check_arg,
86
82
const char *field_name_arg,
88
84
const CHARSET_INFO * const cs)
90
DateTime::MAX_STRING_LENGTH - 1 /* no \0 */,
85
:Field_str(ptr_arg, MAX_DATETIME_WIDTH, null_ptr_arg, null_bit_arg,
86
unireg_check_arg, field_name_arg, cs)
96
88
/* For 4.0 MYD and 4.0 InnoDB compatibility */
97
89
flags|= UNSIGNED_FLAG;
98
unireg_check= unireg_check_arg;
99
if (! share->getTimestampField() && unireg_check != NONE)
90
if (!share->timestamp_field && unireg_check != NONE)
101
92
/* This timestamp has auto-update */
102
share->setTimestampField(this);
103
flags|= FUNCTION_DEFAULT_FLAG;
93
share->timestamp_field= this;
94
flags|= TIMESTAMP_FLAG;
104
95
if (unireg_check != TIMESTAMP_DN_FIELD)
105
96
flags|= ON_UPDATE_NOW_FLAG;
109
101
Field_timestamp::Field_timestamp(bool maybe_null_arg,
110
102
const char *field_name_arg,
111
103
const CHARSET_INFO * const cs)
112
:Field_str((unsigned char*) NULL,
113
DateTime::MAX_STRING_LENGTH - 1 /* no \0 */,
114
maybe_null_arg ? (unsigned char*) "": 0,
104
:Field_str((unsigned char*) 0, MAX_DATETIME_WIDTH,
105
maybe_null_arg ? (unsigned char*) "": 0, 0,
106
NONE, field_name_arg, cs)
119
108
/* For 4.0 MYD and 4.0 InnoDB compatibility */
120
109
flags|= UNSIGNED_FLAG;
121
if (unireg_check != TIMESTAMP_DN_FIELD)
122
flags|= ON_UPDATE_NOW_FLAG;
110
if (unireg_check != TIMESTAMP_DN_FIELD)
111
flags|= ON_UPDATE_NOW_FLAG;
126
116
Get auto-set type for TIMESTAMP field.
159
150
int Field_timestamp::store(const char *from,
161
152
const CHARSET_INFO * const )
165
ASSERT_COLUMN_MARKED_FOR_WRITE;
167
if (! temporal.from_string(from, (size_t) len))
169
my_error(ER_INVALID_UNIX_TIMESTAMP_VALUE, MYF(ME_FATALERROR), from);
174
temporal.to_time_t(&tmp);
176
store_timestamp(tmp);
180
int Field_timestamp::store(double from)
182
ASSERT_COLUMN_MARKED_FOR_WRITE;
184
if (from < 0 || from > 99991231235959.0)
186
/* Convert the double to a string using stringstream */
187
std::stringstream ss;
189
ss.precision(18); /* 18 places should be fine for error display of double input. */
193
my_error(ER_INVALID_UNIX_TIMESTAMP_VALUE, MYF(ME_FATALERROR), tmp.c_str());
196
return Field_timestamp::store((int64_t) rint(from), false);
199
int Field_timestamp::store(int64_t from, bool)
201
ASSERT_COLUMN_MARKED_FOR_WRITE;
204
* Try to create a DateTime from the supplied integer. Throw an error
205
* if unable to create a valid DateTime.
208
if (! temporal.from_int64_t(from))
210
/* Convert the integer to a string using boost::lexical_cast */
211
std::string tmp(boost::lexical_cast<std::string>(from));
213
my_error(ER_INVALID_UNIX_TIMESTAMP_VALUE, MYF(ME_FATALERROR), tmp.c_str());
218
temporal.to_time_t(&tmp);
220
store_timestamp(tmp);
157
bool have_smth_to_conv;
158
bool in_dst_time_gap;
159
Session *session= table ? table->in_use : current_session;
161
/* We don't want to store invalid or fuzzy datetime values in TIMESTAMP */
162
have_smth_to_conv= (str_to_datetime(from, len, &l_time, 1, &error) >
163
DRIZZLE_TIMESTAMP_ERROR);
165
if (error || !have_smth_to_conv)
168
set_datetime_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED,
169
from, len, DRIZZLE_TIMESTAMP_DATETIME, 1);
172
/* Only convert a correct date (not a zero date) */
173
if (have_smth_to_conv && l_time.month)
175
if (!(tmp= TIME_to_timestamp(session, &l_time, &in_dst_time_gap)))
177
set_datetime_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN,
178
ER_WARN_DATA_OUT_OF_RANGE,
179
from, len, DRIZZLE_TIMESTAMP_DATETIME, !error);
182
else if (in_dst_time_gap)
184
set_datetime_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN,
185
ER_WARN_INVALID_TIMESTAMP,
186
from, len, DRIZZLE_TIMESTAMP_DATETIME, !error);
190
store_timestamp(tmp);
195
int Field_timestamp::store(double nr)
198
if (nr < 0 || nr > 99991231235959.0)
200
set_datetime_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN,
201
ER_WARN_DATA_OUT_OF_RANGE,
202
nr, DRIZZLE_TIMESTAMP_DATETIME);
203
nr= 0; // Avoid overflow on buff
206
error|= Field_timestamp::store((int64_t) rint(nr), false);
211
int Field_timestamp::store(int64_t nr,
217
bool in_dst_time_gap;
218
Session *session= table ? table->in_use : current_session;
220
/* We don't want to store invalid or fuzzy datetime values in TIMESTAMP */
221
int64_t tmp= number_to_datetime(nr, &l_time, (session->variables.sql_mode &
222
MODE_NO_ZERO_DATE), &error);
223
if (tmp == INT64_C(-1))
230
if (!(timestamp= TIME_to_timestamp(session, &l_time, &in_dst_time_gap)))
232
set_datetime_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN,
233
ER_WARN_DATA_OUT_OF_RANGE,
234
nr, DRIZZLE_TIMESTAMP_DATETIME, 1);
239
set_datetime_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN,
240
ER_WARN_INVALID_TIMESTAMP,
241
nr, DRIZZLE_TIMESTAMP_DATETIME, 1);
245
set_datetime_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN,
246
ER_WARN_DATA_TRUNCATED,
247
nr, DRIZZLE_TIMESTAMP_DATETIME, 1);
249
store_timestamp(timestamp);
224
253
double Field_timestamp::val_real(void)
229
258
int64_t Field_timestamp::val_int(void)
233
ASSERT_COLUMN_MARKED_FOR_READ;
261
DRIZZLE_TIME time_tmp;
262
Session *session= table ? table->in_use : current_session;
235
264
#ifdef WORDS_BIGENDIAN
236
if (getTable() && getTable()->getShare()->db_low_byte_first)
237
temp= uint8korr(ptr);
265
if (table && table->s->db_low_byte_first)
240
int64_tget(temp, ptr);
243
(void) temporal.from_time_t((time_t) temp);
245
/* We must convert into a "timestamp-formatted integer" ... */
247
temporal.to_int64_t(&result);
271
if (temp == 0L) // No time
272
return(0); /* purecov: inspected */
274
session->variables.time_zone->gmt_sec_to_TIME(&time_tmp, (time_t)temp);
276
return time_tmp.year * INT64_C(10000000000) +
277
time_tmp.month * INT64_C(100000000) +
278
time_tmp.day * 1000000 + time_tmp.hour * 10000 +
279
time_tmp.minute * 100 + time_tmp.second;
251
String *Field_timestamp::val_str(String *val_buffer, String *)
283
String *Field_timestamp::val_str(String *val_buffer, String *val_ptr)
285
uint32_t temp, temp2;
286
DRIZZLE_TIME time_tmp;
287
Session *session= table ? table->in_use : current_session;
255
int to_len= field_length + 1;
257
val_buffer->alloc(to_len);
258
to= (char *) val_buffer->ptr();
290
val_buffer->alloc(field_length+1);
291
to= (char*) val_buffer->ptr();
292
val_buffer->length(field_length);
260
294
#ifdef WORDS_BIGENDIAN
261
if (getTable() && getTable()->getShare()->db_low_byte_first)
262
temp= uint8korr(ptr);
295
if (table && table->s->db_low_byte_first)
265
int64_tget(temp, ptr);
267
val_buffer->set_charset(&my_charset_bin); /* Safety */
270
(void) temporal.from_time_t((time_t) temp);
273
rlen= temporal.to_string(to, to_len);
274
assert(rlen < to_len);
276
val_buffer->length(rlen);
302
{ /* Zero time is "000000" */
303
val_ptr->set(STRING_WITH_LEN("0000-00-00 00:00:00"), &my_charset_bin);
306
val_buffer->set_charset(&my_charset_bin); // Safety
308
session->variables.time_zone->gmt_sec_to_TIME(&time_tmp,(time_t)temp);
310
temp= time_tmp.year % 100;
311
if (temp < YY_PART_YEAR - 1)
321
temp2=temp/10; temp=temp-temp2*10;
322
*to++= (char) ('0'+(char) (temp2));
323
*to++= (char) ('0'+(char) (temp));
326
temp2=temp/10; temp=temp-temp2*10;
327
*to++= (char) ('0'+(char) (temp2));
328
*to++= (char) ('0'+(char) (temp));
331
temp2=temp/10; temp=temp-temp2*10;
332
*to++= (char) ('0'+(char) (temp2));
333
*to++= (char) ('0'+(char) (temp));
336
temp2=temp/10; temp=temp-temp2*10;
337
*to++= (char) ('0'+(char) (temp2));
338
*to++= (char) ('0'+(char) (temp));
340
temp=time_tmp.minute;
341
temp2=temp/10; temp=temp-temp2*10;
342
*to++= (char) ('0'+(char) (temp2));
343
*to++= (char) ('0'+(char) (temp));
345
temp=time_tmp.second;
346
temp2=temp/10; temp=temp-temp2*10;
347
*to++= (char) ('0'+(char) (temp2));
348
*to++= (char) ('0'+(char) (temp));
277
350
return val_buffer;
280
bool Field_timestamp::get_date(DRIZZLE_TIME *ltime, uint32_t)
354
bool Field_timestamp::get_date(DRIZZLE_TIME *ltime, uint32_t fuzzydate)
357
Session *session= table ? table->in_use : current_session;
284
358
#ifdef WORDS_BIGENDIAN
285
if (getTable() && getTable()->getShare()->db_low_byte_first)
286
temp= uint8korr(ptr);
359
if (table && table->s->db_low_byte_first)
289
int64_tget(temp, ptr);
291
memset(ltime, 0, sizeof(*ltime));
294
(void) temporal.from_time_t((time_t) temp);
296
/* @TODO Goodbye the below code when DRIZZLE_TIME is finally gone.. */
298
ltime->time_type= DRIZZLE_TIMESTAMP_DATETIME;
299
ltime->year= temporal.years();
300
ltime->month= temporal.months();
301
ltime->day= temporal.days();
302
ltime->hour= temporal.hours();
303
ltime->minute= temporal.minutes();
304
ltime->second= temporal.seconds();
365
{ /* Zero time is "000000" */
366
if (fuzzydate & TIME_NO_ZERO_DATE)
368
memset(ltime, 0, sizeof(*ltime));
372
session->variables.time_zone->gmt_sec_to_TIME(ltime, (time_t)temp);
314
382
int Field_timestamp::cmp(const unsigned char *a_ptr, const unsigned char *b_ptr)
317
385
#ifdef WORDS_BIGENDIAN
318
if (getTable() && getTable()->getShare()->db_low_byte_first)
386
if (table && table->s->db_low_byte_first)
326
int64_tget(a, a_ptr);
327
int64_tget(b, b_ptr);
329
return ((uint64_t) a < (uint64_t) b) ? -1 : ((uint64_t) a > (uint64_t) b) ? 1 : 0;
397
return ((uint32_t) a < (uint32_t) b) ? -1 : ((uint32_t) a > (uint32_t) b) ? 1 : 0;
333
401
void Field_timestamp::sort_string(unsigned char *to,uint32_t )
335
403
#ifdef WORDS_BIGENDIAN
336
if (!getTable() || !getTable()->getShare()->db_low_byte_first)
404
if (!table || !table->s->db_low_byte_first)
361
422
void Field_timestamp::sql_type(String &res) const
363
424
res.set_ascii(STRING_WITH_LEN("timestamp"));
366
428
void Field_timestamp::set_time()
368
Session *session= getTable() ? getTable()->in_use : current_session;
369
time_t tmp= session->query_start();
430
Session *session= table ? table->in_use : current_session;
431
long tmp= (long) session->query_start();
371
433
store_timestamp(tmp);
374
437
void Field_timestamp::set_default()
376
if (getTable()->timestamp_field == this &&
439
if (table->timestamp_field == this &&
377
440
unireg_check != TIMESTAMP_UN_FIELD)