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| Comment: | Add an SQLITE_OMIT_LOCALTIME around the "utc" modifier in date/time functions. (CVS 5483) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
71486e93b274b7ca954314dd3e414619 |
| User & Date: | drh 2008-07-25 16:39:25 |
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2008-07-26
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| 18:26 | Fix a case where database corruption was causing an invalid reference. (CVS 5484) (check-in: 7aecabac user: danielk1977 tags: trunk) | |
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2008-07-25
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| 16:39 | Add an SQLITE_OMIT_LOCALTIME around the "utc" modifier in date/time functions. (CVS 5483) (check-in: 71486e93 user: drh tags: trunk) | |
| 16:07 | Further performance improvements to mem6.c. (CVS 5482) (check-in: 4528f7b1 user: danielk1977 tags: trunk) | |
Changes to src/date.c.
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** This file contains the C functions that implement date and time ** functions for SQLite. ** ** There is only one exported symbol in this file - the function ** sqlite3RegisterDateTimeFunctions() found at the bottom of the file. ** All other code has file scope. ** ** $Id: date.c,v 1.85 2008/06/18 17:09:10 danielk1977 Exp $ ** ** SQLite processes all times and dates as Julian Day numbers. The ** dates and times are stored as the number of days since noon ** in Greenwich on November 24, 4714 B.C. according to the Gregorian ** calendar system. ** ** 1970-01-01 00:00:00 is JD 2440587.5 ................................................................................ ** Treat the current value of p->iJD as the number of ** seconds since 1970. Convert to a real julian day number. */ if( strcmp(z, "unixepoch")==0 && p->validJD ){ p->iJD = p->iJD/86400.0 + 2440587.5*86400000.0; clearYMD_HMS_TZ(p); rc = 0; }else if( strcmp(z, "utc")==0 ){ double c1; computeJD(p); c1 = localtimeOffset(p); p->iJD -= c1; clearYMD_HMS_TZ(p); p->iJD += c1 - localtimeOffset(p); rc = 0; } break; } case 'w': { /* ** weekday N ** ** Move the date to the same time on the next occurrence of |
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** This file contains the C functions that implement date and time ** functions for SQLite. ** ** There is only one exported symbol in this file - the function ** sqlite3RegisterDateTimeFunctions() found at the bottom of the file. ** All other code has file scope. ** ** $Id: date.c,v 1.86 2008/07/25 16:39:25 drh Exp $ ** ** SQLite processes all times and dates as Julian Day numbers. The ** dates and times are stored as the number of days since noon ** in Greenwich on November 24, 4714 B.C. according to the Gregorian ** calendar system. ** ** 1970-01-01 00:00:00 is JD 2440587.5 ................................................................................ ** Treat the current value of p->iJD as the number of ** seconds since 1970. Convert to a real julian day number. */ if( strcmp(z, "unixepoch")==0 && p->validJD ){ p->iJD = p->iJD/86400.0 + 2440587.5*86400000.0; clearYMD_HMS_TZ(p); rc = 0; } #ifndef SQLITE_OMIT_LOCALTIME else if( strcmp(z, "utc")==0 ){ double c1; computeJD(p); c1 = localtimeOffset(p); p->iJD -= c1; clearYMD_HMS_TZ(p); p->iJD += c1 - localtimeOffset(p); rc = 0; } #endif break; } case 'w': { /* ** weekday N ** ** Move the date to the same time on the next occurrence of |