okumin commented on code in PR #4938:
URL: https://github.com/apache/hive/pull/4938#discussion_r1489157199
##########
ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDTFStack.java:
##########
@@ -63,13 +64,21 @@ public StructObjectInspector initialize(ObjectInspector[]
args)
}
if (!(args[0] instanceof ConstantObjectInspector)) {
throw new UDFArgumentException(
+ "The first argument to STACK() must be a constant.");
+ }
+ final Object value = ((ConstantObjectInspector)
args[0]).getWritableConstantValue();
+ if (value == null) {
+ throw new UDFArgumentException("The first argument of STACK() must not
be null.");
+ }
+ if (!(value instanceof IntWritable)) {
+ throw new UDFArgumentTypeException(
+ 0,
"The first argument to STACK() must be a constant integer (got " +
- args[0].getTypeName() + " instead).");
+ args[0].getTypeName() + " instead).");
Review Comment:
Modified
https://github.com/apache/hive/pull/4938/commits/8b109aa427c65f8443d403f6c3288630a1dfc1ed
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