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Comment:Window functions are never constant.
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SHA3-256: 35f0b5a8c7921f7419eeb11be8201fd6988047042fcaeffa297fc322bc480c1f
User & Date: drh 2019-12-04 19:45:52
Context
2019-12-05
00:44
Enhance the RTREE extension so that it give correct query results even if the query uses non-numeric constraints. Ticket [a55ab6d97d01ecbc] check-in: f898d04cf2 user: drh tags: trunk
2019-12-04
19:45
Window functions are never constant. check-in: 35f0b5a8c7 user: drh tags: trunk
15:08
Ensure that an ALWAYS() in the rename logic really is always true, even for faulty inputs. check-in: 54410f0e77 user: drh tags: trunk
Changes
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Changes to src/expr.c.

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  }

  switch( pExpr->op ){
    /* Consider functions to be constant if all their arguments are constant
    ** and either pWalker->eCode==4 or 5 or the function has the
    ** SQLITE_FUNC_CONST flag. */
    case TK_FUNCTION:
      if( pWalker->eCode>=4 || ExprHasProperty(pExpr,EP_ConstFunc) ){


        return WRC_Continue;
      }else{
        pWalker->eCode = 0;
        return WRC_Abort;
      }
    case TK_ID:
      /* Convert "true" or "false" in a DEFAULT clause into the







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  }

  switch( pExpr->op ){
    /* Consider functions to be constant if all their arguments are constant
    ** and either pWalker->eCode==4 or 5 or the function has the
    ** SQLITE_FUNC_CONST flag. */
    case TK_FUNCTION:
      if( (pWalker->eCode>=4 || ExprHasProperty(pExpr,EP_ConstFunc))
       && !ExprHasProperty(pExpr, EP_WinFunc)
      ){
        return WRC_Continue;
      }else{
        pWalker->eCode = 0;
        return WRC_Abort;
      }
    case TK_ID:
      /* Convert "true" or "false" in a DEFAULT clause into the