deniskuzZ commented on code in PR #4739:
URL: https://github.com/apache/hive/pull/4739#discussion_r1410598561
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ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDFOPDivide.java:
##########
@@ -115,14 +115,34 @@ protected HiveDecimalWritable evaluate(HiveDecimal left,
HiveDecimal right) {
@Override
protected DecimalTypeInfo deriveResultDecimalTypeInfo(int prec1, int scale1,
int prec2, int scale2) {
- // From https://msdn.microsoft.com/en-us/library/ms190476.aspx
- // e1 / e2
- // Precision: p1 - s1 + s2 + max(6, s1 + p2 + 1)
- // Scale: max(6, s1 + p2 + 1)
- int intDig = prec1 - scale1 + scale2;
- int scale = Math.max(6, scale1 + prec2 + 1);
- int prec = intDig + scale;
- return adjustPrecScale(prec, scale);
+ boolean allowLoss = SessionState.get() == null ||
SessionState.get().getConf() == null ?
Review Comment:
````
HiveConf.getBoolVar(SessionState.getSessionConf(), HiveConf.ConfVars.
HIVE_SQL_DECIMAL_OPERATIONS_ALLOW_PRECISION_LOSS);
````
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