CREATE TYPE user_def AS(i1 INT, v1 VARCHAR NULL);
CREATE TYPE user_def_row AS (val ROW(i1 INT, v1 VARCHAR NULL));
CREATE TYPE user_def_udt AS (val user_def);

CREATE TABLE tbl(
arr VARCHAR ARRAY,
mapp MAP<VARCHAR, INT>,
roww ROW(i1 INT, v1 VARCHAR NULL) NULL,
udt user_def);


CREATE MATERIALIZED VIEW v AS SELECT
SAFE_CAST(NULL AS user_def_row) AS to_row,
SAFE_CAST(NULL AS user_def_udt) AS to_udt
FROM tbl;

 error[E0277]: the trait bound `Tup1<Option<Tup2<Option<i32>, Option<SqlString>>>>: From<...>` is not satisfied
   --> crates/feldera_pipe_operator_5d8d4698bc6522df/src/lib.rs:159:19
    |
159 |                 x.into()), )
    |                   ^^^^ the trait `From<struct_1687b1b3750fc701>` is not implemented for `Tup1<Option<Tup2<Option<i32>, Option<SqlString>>>>`
    |
    = help: the following other types implement trait `From<T>`:
              `dbsp::utils::Tup1<T1>` implements `From<(T1,)>`
              `Tup1<Option<Tup2<i32, Option<SqlString>>>>` implements `From<struct_1687b1b3750fc701>`
    = note: required for `struct_1687b1b3750fc701` to implement `Into<Tup1<Option<Tup2<Option<i32>, Option<SqlString>>>>>`
    = note: the full name for the type has been written to '/Users/rivuadhikari/.feldera/compiler/rust-compilation/target/debug/deps/feldera_pipe_operator_5d8d4698bc6522df-caf54392dfeba4f4.long-type-57774922162027651.txt'
    = note: consider using `--verbose` to print the full type name to the console

 error[E0277]: the trait bound `struct_1687b1b3750fc701: From<Tup1<Option<Tup2<Option<i32>, ...>>>>` is not satisfied
   --> crates/feldera_pipe_operator_5d8d4698bc6522df/src/lib.rs:168:23
    |
168 |                     x.into()), 
    |                       ^^^^ unsatisfied trait bound
    |
    = help: the trait `From<dbsp::utils::Tup1<std::option::Option<dbsp::utils::Tup2<std::option::Option<i32>, _>>>>` is not implemented for `struct_1687b1b3750fc701`
            but trait `From<dbsp::utils::Tup1<std::option::Option<dbsp::utils::Tup2<i32, _>>>>` is implemented for it
    = help: for that trait implementation, expected `i32`, found `std::option::Option<i32>`
    = note: required for `Tup1<Option<Tup2<Option<i32>, Option<SqlString>>>>` to implement `Into<struct_1687b1b3750fc701>`
    = note: the full name for the type has been written to '/Users/rivuadhikari/.feldera/compiler/rust-compilation/target/debug/deps/feldera_pipe_operator_5d8d4698bc6522df-caf54392dfeba4f4.long-type-57774922162027651.txt'
    = note: consider using `--verbose` to print the full type name to the console