use of com.facebook.presto.sql.tree.Intersect in project presto by prestodb.
the class AstBuilder method visitSetOperation.
@Override
public Node visitSetOperation(SqlBaseParser.SetOperationContext context) {
QueryBody left = (QueryBody) visit(context.left);
QueryBody right = (QueryBody) visit(context.right);
boolean distinct = context.setQuantifier() == null || context.setQuantifier().DISTINCT() != null;
switch(context.operator.getType()) {
case SqlBaseLexer.UNION:
return new Union(getLocation(context.UNION()), ImmutableList.of(left, right), distinct);
case SqlBaseLexer.INTERSECT:
return new Intersect(getLocation(context.INTERSECT()), ImmutableList.of(left, right), distinct);
case SqlBaseLexer.EXCEPT:
return new Except(getLocation(context.EXCEPT()), left, right, distinct);
}
throw new IllegalArgumentException("Unsupported set operation: " + context.operator.getText());
}