dengzhhu653 commented on a change in pull request #992:
URL: https://github.com/apache/hive/pull/992#discussion_r413913032
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/parse/type/TypeCheckProcFactory.java
##########
@@ -789,12 +791,25 @@ protected void validateUDF(ASTNode expr, boolean
isFunction, TypeCheckCtx ctx, F
LogHelper console = new LogHelper(LOG);
+ Set<PrimitiveObjectInspector.PrimitiveCategory> unsafeConventionTyps =
Sets.newHashSet(
+ PrimitiveObjectInspector.PrimitiveCategory.STRING,
+ PrimitiveObjectInspector.PrimitiveCategory.VARCHAR,
+ PrimitiveObjectInspector.PrimitiveCategory.CHAR);
// For now, if a bigint is going to be cast to a double throw an error
or warning
- if ((oiTypeInfo0.equals(TypeInfoFactory.stringTypeInfo) &&
oiTypeInfo1.equals(TypeInfoFactory.longTypeInfo)) ||
- (oiTypeInfo0.equals(TypeInfoFactory.longTypeInfo) &&
oiTypeInfo1.equals(TypeInfoFactory.stringTypeInfo))) {
+ if ((oiTypeInfo0 instanceof PrimitiveTypeInfo &&
+
unsafeConventionTyps.contains(((PrimitiveTypeInfo)oiTypeInfo0).getPrimitiveCategory())
&&
+ oiTypeInfo1.equals(TypeInfoFactory.longTypeInfo)) || (oiTypeInfo1
instanceof PrimitiveTypeInfo &&
+
unsafeConventionTyps.contains(((PrimitiveTypeInfo)oiTypeInfo1).getPrimitiveCategory())
&&
+ oiTypeInfo0.equals(TypeInfoFactory.longTypeInfo))) {
String error = StrictChecks.checkTypeSafety(conf);
- if (error != null) throw new UDFArgumentException(error);
- console.printError("WARNING: Comparing a bigint and a string may
result in a loss of precision.");
+ if (error != null) {
+ throw new UDFArgumentException(error);
+ }
+ String type = oiTypeInfo0.getTypeName();
+ if (oiTypeInfo0.equals(TypeInfoFactory.longTypeInfo)) {
+ type = oiTypeInfo1.getTypeName();
+ }
+ console.printError("WARNING: Comparing a bigint and a " + type + "
may result in a loss of precision.");
Review comment:
Yes, the variable can be removed by this way, thank you.
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