feat: Implement FFI_TableProviderFactory
#17994
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+405
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Which issue does this PR close?
Rationale for this change
Expose
TableProviderFactoryvia FFI to enable external languages (e.g., Python) to implement custom table provider factories and extend DataFusion with new data source types.What changes are included in this PR?
datafusion/ffi/src/table_provider_factory.rswith:FFI_TableProviderFactory: Stable C ABI struct with function pointers forcreate,clone,release, andversionForeignTableProviderFactory: Wrapper implementingTableProviderFactorytraitAre these changes tested?
Yes
Are there any user-facing changes?
Yes - new FFI API that enables custom
TableProviderFactoryimplementations in foreign languages. This is an additive change with no breaking changes to existing APIs.