Is GenericUDFXPath.getDisplayString() implementation correct?
1. it says "array"
2. it wraps children with single qutes
@Override
public String getDisplayString(String[] children) {
StringBuilder builder = new StringBuilder();
builder.append("array (");
if (children.length > 0) {
builder.append("'");
builder.append(StringUtils.join(children, "','"));
builder.append("'");
}
builder.append(")");
return builder.toString();
}
https://github.com/apache/hive/blob/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/xml/GenericUDFXPath.java
