SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 4) ExpressionList (children 2) Identifier a Function count (children 1) ExpressionList (children 1) Identifier a TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier lc ExpressionList (children 1) Identifier a ExpressionList (children 1) OrderByElement (children 1) Identifier a