parthchandra commented on PR #1550:
URL:
https://github.com/apache/datafusion-comet/pull/1550#issuecomment-2744647013
> > ```
> > struct
> > +- array
> > +- struct
> > ```
fyi, currently some tests in Spark SQL (e.g. "add a nested column at the end
of the leaf struct column") fail because of structs like this with.
```
Caused by: org.apache.comet.CometNativeException: no entry found for key
[info] at comet::errors::init::{{closure}}(__internal__:0)
[info] at std::panicking::rust_panic_with_hook(__internal__:0)
[info] at
std::panicking::begin_panic_handler::{{closure}}(__internal__:0)
[info] at
std::sys::backtrace::__rust_end_short_backtrace(__internal__:0)
[info] at rust_begin_unwind(__internal__:0)
[info] at core::panicking::panic_fmt(__internal__:0)
[info] at core::option::expect_failed(__internal__:0)
[info] at
comet::parquet::parquet_support::cast_struct_to_struct(__internal__:0)
[info] at comet::parquet::parquet_support::cast_array(__internal__:0)
[info] at
comet::parquet::parquet_support::cast_struct_to_struct(__internal__:0)
[info] at comet::parquet::parquet_support::cast_array(__internal__:0)
[info] at
comet::parquet::parquet_support::spark_parquet_convert(__internal__:0)
[info] at <core::iter::adapters::GenericShunt<I,R> as
core::iter::traits::iterator::Iterator>::next(__internal__:0)
[info] at <comet::parquet::schema_adapter::SchemaMapping as
datafusion::datasource::schema_adapter::SchemaMapper>::map_batch(__internal__:0)
[info] at <futures_util::stream::stream::map::Map<St,F> as
futures_core::stream::Stream>::poll_next(__internal__:0)
[info] at <datafusion_datasource::file_stream::FileStream as
futures_core::stream::Stream>::poll_next(__internal__:0)
[info] at
Java_org_apache_comet_parquet_Native_readNextRecordBatch(__internal__:0)
[info] at <unknown>(__internal__:0)
[info] at org.apache.comet.parquet.Native.readNextRecordBatch(Native
Method)
```
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