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Overview
Comment:Remove a NEVER() comparison from sqlite3ExprCompare().
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SHA3-256: f4285297e1e7ebef90bfc0f71402a4e1726d31bc15b69fec13a1f0d98fed1f08
User & Date: drh 2019-10-28 13:07:01
Context
2019-10-28
13:54
Fix a problem in fts3 causing it to report corruption if a doclist contains consectutive rowid entries that differ by more than 2^63. check-in: 0b0a3048 user: dan tags: trunk
13:07
Remove a NEVER() comparison from sqlite3ExprCompare(). check-in: f4285297 user: drh tags: trunk
04:20
ALWAYS macro added for coverage. check-in: a1e1ba91 user: drh tags: trunk
Changes
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Changes to src/expr.c.

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    if( sqlite3ExprListCompare(pA->x.pList, pB->x.pList, iTab) ) return 2;
    if( pA->op!=TK_STRING
     && pA->op!=TK_TRUEFALSE
     && (combinedFlags & EP_Reduced)==0
    ){
      if( pA->iColumn!=pB->iColumn ) return 2;
      if( pA->op2!=pB->op2 ) return 2;
      if( pA->op!=TK_IN
       && pA->iTable!=pB->iTable 
       && (pA->iTable!=iTab || NEVER(pB->iTable>=0)) ) return 2;
    }
  }
  return 0;
}

/*
** Compare two ExprList objects.  Return 0 if they are identical and 







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    if( sqlite3ExprListCompare(pA->x.pList, pB->x.pList, iTab) ) return 2;
    if( pA->op!=TK_STRING
     && pA->op!=TK_TRUEFALSE
     && (combinedFlags & EP_Reduced)==0
    ){
      if( pA->iColumn!=pB->iColumn ) return 2;
      if( pA->op2!=pB->op2 ) return 2;
      if( pA->op!=TK_IN && pA->iTable!=pB->iTable && pA->iTable!=iTab ){
        return 2;
      }
    }
  }
  return 0;
}

/*
** Compare two ExprList objects.  Return 0 if they are identical and