|| exprTokenType == HiveParser.TOK_FUNCTIONSTAR) {
assert (expressionTree.getChildCount() != 0);
if (expressionTree.getChild(0).getType() == HiveParser.Identifier) {
String functionName = unescapeIdentifier(expressionTree.getChild(0)
.getText());
WindowFunctionInfo fi = FunctionRegistry.getWindowFunctionInfo(functionName);
if (fi != null) {
aggregations.add(expressionTree);
return;
}
}