SQLite

1.0.3

**   http://www.hwaci.com/drh/
**
*************************************************************************
** This module contains C code that generates VDBE code used to process
** the WHERE clause of SQL statements.  Also found here are subroutines
** to generate VDBE code to evaluate expressions.
**
** $Id: where.c,v 1.9 2000/08/22 18:29:34 drh Exp $
*/
#include "sqliteInt.h"

/*
** The query generator uses an array of instances of this structure to
** help it analyze the subexpressions of the WHERE clause.  Each WHERE
** clause subexpression is separated from the others by an AND operator.

      }
      sqliteVdbeAddOp(v, OP_MakeKey, pIdx->nColumn, 0, 0, 0);
      sqliteVdbeAddOp(v, OP_Fetch, base+pTabList->nId+i, 0, 0, 0);
      sqliteVdbeAddOp(v, OP_NextIdx, base+pTabList->nId+i, brk, 0, cont);
      if( i==pTabList->nId-1 && pushKey ){
        haveKey = 1;
      }else{
        sqliteVdbeAddOp(v, OP_Fetch, base+idx, 0, 0, 0);
        haveKey = 0;
      }
    }
    loopMask |= 1<<idx;

    /* Insert code to test every subexpression that can be completely
    ** computed using the current set of tables.

proc chng {date desc} {
  puts "<DT><B>$date</B></DT>"
  puts "<DD><P><UL>$desc</UL></P></DD>"
}

chng {2000 Aug 22 (Version 1.0.3)} {
<li>In the sqlite shell, print the "Database opened READ ONLY" message
    to stderr instead of stdout.</li>
<li>In the sqlite shell, now print the version number on initial startup.</li>
<li>Add the <b>sqlite_version[]</b> string constant to the library</li>
<li>Makefile updates</li>
<li>Bug fix: incorrect VDBE code was being generated for the following
    circumstance: a query on an indexed table containing a WHERE clause with
    an IN operator that had a subquery on its right-hand side.</li>
}

chng {2000 Aug 18 (Version 1.0.1)} {
<li>Fix a bug in the configure script.</li>
<li>Minor revisions to the website.</li>
}