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Overview
| Comment: | Fix the "now" option for date-time functions for cases when STAT4 is disabled. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
3ac1f6a3cf1a8fd3ab1ca96b2564c13c |
| User & Date: | drh 2015-03-12 23:48:27 |
Context
|
2015-03-13
| ||
| 00:11 | Remove debugging logic accidently included in the previous check-in. check-in: 2887fb38 user: drh tags: trunk | |
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2015-03-12
| ||
| 23:48 | Fix the "now" option for date-time functions for cases when STAT4 is disabled. check-in: 3ac1f6a3 user: drh tags: trunk | |
| 21:22 | When STAT4 is enabled, allow probes of the STAT4 table using the value of constant functions computed at compile-time. check-in: 0f250957 user: drh tags: trunk | |
Changes
Changes to src/vdbeapi.c.
637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 |
** is requested more than once within the same run of a single prepared
** statement, the exact same time is returned for each invocation regardless
** of the amount of time that elapses between invocations. In other words,
** the time returned is always the time of the first call.
*/
sqlite3_int64 sqlite3StmtCurrentTime(sqlite3_context *p){
int rc;
sqlite3_int64 iTime = 0;
#ifndef SQLITE_ENABLE_STAT3_OR_STAT4
sqlite3_int64 *piTime = &iTime;
assert( p->pVdbe!=0 );
#else
sqlite3_int64 *piTime = p->pVdbe!=0 ? &p->pVdbe->iCurrentTime : &iTime;
if( *piTime==0 )
#endif
{
rc = sqlite3OsCurrentTimeInt64(p->pOut->db->pVfs, piTime);
if( rc ) *piTime = 0;
}
return *piTime;
}
/*
|
< | > < < > |
637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 |
** is requested more than once within the same run of a single prepared
** statement, the exact same time is returned for each invocation regardless
** of the amount of time that elapses between invocations. In other words,
** the time returned is always the time of the first call.
*/
sqlite3_int64 sqlite3StmtCurrentTime(sqlite3_context *p){
int rc;
#ifndef SQLITE_ENABLE_STAT3_OR_STAT4
sqlite3_int64 *piTime = &p->pVdbe->iCurrentTime;
assert( p->pVdbe!=0 );
#else
sqlite3_int64 iTime = 0;
sqlite3_int64 *piTime = p->pVdbe!=0 ? &p->pVdbe->iCurrentTime : &iTime;
#endif
if( *piTime==0 ){
rc = sqlite3OsCurrentTimeInt64(p->pOut->db->pVfs, piTime);
if( rc ) *piTime = 0;
}
return *piTime;
}
/*
|
Changes to test/date.test.
536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 |
# functions always returns exactly the same value for multiple
# invocations within the same sqlite3_step() call.
#
proc sleeper {} {after 100}
do_test date-15.1 {
db func sleeper sleeper
db eval {
SELECT c - a FROM (SELECT julianday('now') AS a,
sleeper(), julianday('now') AS c);
}
} {0.0}
do_test date-15.2 {
db eval {
SELECT a==b FROM (SELECT current_timestamp AS a,
sleeper(), current_timestamp AS b);
}
} {1}
finish_test
|
| |
536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 |
# functions always returns exactly the same value for multiple
# invocations within the same sqlite3_step() call.
#
proc sleeper {} {after 100}
do_test date-15.1 {
db func sleeper sleeper
db eval {
SELECT c, a, c - a FROM (SELECT julianday('now') AS a,
sleeper(), julianday('now') AS c);
}
} {0.0}
do_test date-15.2 {
db eval {
SELECT a==b FROM (SELECT current_timestamp AS a,
sleeper(), current_timestamp AS b);
}
} {1}
finish_test
|