fix tpcds query q47

Author: zhejiangxiaomai

velox/type/DecimalUtil.h

@@ -200,12 +200,12 @@ class DecimalUtil {
       uint8_t /*bRescale*/) {
     VELOX_CHECK_NE(b, 0, "Division by zero");
     int resultSign = 1;
-    A unsignedDividendRescaled(a);
+    R unsignedDividendRescaled(a);
     if (a < 0) {
       resultSign = -1;
       unsignedDividendRescaled *= -1;
     }
-    B unsignedDivisor(b);
+    R unsignedDivisor(b);
     if (b < 0) {
       resultSign *= -1;
       unsignedDivisor *= -1;