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Overview
Comment:Add an SQLITE_OMIT_LOCALTIME around the "utc" modifier in date/time functions. (CVS 5483)
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SHA1: 71486e93b274b7ca954314dd3e4146192a8b6d79
User & Date: drh 2008-07-25 16:39:25.000
Context
2008-07-26
18:26
Fix a case where database corruption was causing an invalid reference. (CVS 5484) (check-in: 7aecabacf9 user: danielk1977 tags: trunk)
2008-07-25
16:39
Add an SQLITE_OMIT_LOCALTIME around the "utc" modifier in date/time functions. (CVS 5483) (check-in: 71486e93b2 user: drh tags: trunk)
16:07
Further performance improvements to mem6.c. (CVS 5482) (check-in: 4528f7b1cc user: danielk1977 tags: trunk)
Changes
Side-by-Side Diff Ignore Whitespace Patch
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 $
** $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
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      ** 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 ){
      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
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