CreateQuery dict_src_complex1_kv (children 3)
 Identifier dict_src_complex1_kv
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration k1 (children 1)
    DataType UInt64
   ColumnDeclaration attr (children 1)
    DataType Int32
 Storage definition (children 1)
  Function Memory
