private void validateNoAggs ( AggFinder aggFinder , SqlNode node , String clause ) { final SqlCall agg = aggFinder . findAgg ( node ) ; if ( agg == null ) { return ; } final SqlOperator op = agg . getOperator ( ) ; if ( op == SqlStdOperatorTable . OVER ) { throw newValidationError ( agg , RESOURCE . windowedAggregateIllegalInClause ( clause ) ) ; } else if ( op . isGroup ( ) || op . isGroupAuxiliary ( ) ) { throw newValidationError ( agg , RESOURCE . groupFunctionMustAppearInGroupByClause ( op . getName ( ) ) ) ; } else { throw newValidationError ( agg , RESOURCE . aggregateIllegalInClause ( clause ) ) ; } }
Throws an error if there is an aggregate or windowed aggregate in the given clause .