AlterQuery  optimize_lazy_materialization_with_compact_mt (children 2)
 ExpressionList (children 1)
  AlterCommand ADD_COLUMN (children 1)
   ColumnDeclaration default3 (children 2)
    DataType UInt64
    Function plus (children 1)
     ExpressionList (children 2)
      Identifier a
      Identifier c
 Identifier optimize_lazy_materialization_with_compact_mt
