CreateQuery mv_test_target (children 3)
 Identifier mv_test_target
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration ref_id (children 1)
    DataType UInt64
   ColumnDeclaration final_id (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType UInt64
   ColumnDeclaration display (children 1)
    DataType String
 Storage definition (children 1)
  Function Log
