SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 4) ExpressionList (children 6) Identifier _partition_id Function min (children 1) ExpressionList (children 1) Identifier d Function max (children 1) ExpressionList (children 1) Identifier d Function min (children 1) ExpressionList (children 1) Identifier d1 Function max (children 1) ExpressionList (children 1) Identifier d1 Function count (children 1) ExpressionList TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier weird_partitions_02245 ExpressionList (children 1) Identifier _partition_id ExpressionList (children 1) OrderByElement (children 1) Identifier _partition_id