Failing describer on MySQL with empty view definition

[tomhoule]

Command: prisma introspect
Version: 2.18.0
Binary Version: da6fafb57b24e0b61ca20960c64e2d41f9e8cff1
Report: https://prisma-errors.netlify.app/report/13084
OS: x64 darwin 20.3.0

JS Stacktrace:

Error: [libs/sql-schema-describer/src/getters.rs:21:14] called `Result::unwrap()` on an `Err` value: "Getting definition from Resultrow ResultRow { columns: [\"name\", \"definition\"], values: [Text(Some(\"link\")), Text(None)] } as String failed"
    at ChildProcess.<anonymous> (/Users/mike/Development/navdata/node_modules/prisma/build/index.js:39246:28)
    at ChildProcess.emit (node:events:378:20)
    at ChildProcess.EventEmitter.emit (node:domain:470:12)
    at Process.ChildProcess._handle.onexit (node:internal/child_process:290:12)

Rust Stacktrace:

   0: backtrace::backtrace::trace
   1: backtrace::capture::Backtrace::new
   2: user_facing_errors::Error::new_in_panic_hook
   3: user_facing_errors::panic_hook::set_panic_hook::{{closure}}
   4: std::panicking::rust_panic_with_hook
   5: std::panicking::begin_panic_handler::{{closure}}
   6: std::sys_common::backtrace::__rust_end_short_backtrace
   7: _rust_begin_unwind
   8: core::panicking::panic_fmt
   9: core::result::unwrap_failed
  10: <quaint::connector::result_set::result_row::ResultRow as sql_schema_describer::getters::Getter>::get_expect_string
  11: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
  12: <tracing::instrument::Instrumented<T> as core::future::future::Future>::poll
  13: <sql_schema_describer::mysql::SqlSchemaDescriber as sql_schema_describer::SqlSchemaDescriberBackend>::describe::__describe::{{closure}}::{{closure}}
  14: <tracing::instrument::Instrumented<T> as core::future::future::Future>::poll
  15: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
  16: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
  17: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
  18: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
  19: <futures_util::compat::compat03as01::Compat<Fut> as futures::future::Future>::poll
  20: <futures::future::either::Either<A,B> as futures::future::Future>::poll
  21: <futures::future::then::Then<A,B,F> as futures::future::Future>::poll
  22: <futures::future::either::Either<A,B> as futures::future::Future>::poll
  23: futures::task_impl::Spawn<T>::enter::{{closure}}
  24: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
  25: introspection_engine::main
  26: std::sys_common::backtrace::__rust_begin_short_backtrace
  27: std::rt::lang_start::{{closure}}
  28: std::rt::lang_start_internal
  29: std::rt::lang_start

[tomhoule]

Due to work on MSSQL, this has already been made optional, so this should be fixed as of 2.19.0.

see https://github.com/prisma/prisma-engines/blob/040b795d68feaf99820baa05c447c8b29d7b3d77/libs/sql-schema-describer/src/mysql.rs#L131