During August 2025, Andrey Tokarew developed Arrow Schema Conversion for the ydb-platform/ydb repository, enabling seamless translation of Apache Arrow schemas into the internal NYT::NTableClient::TTableSchemaPtr format. He engineered helper mappings to support simple, list, struct, and map Arrow types, ensuring accurate conversion to YDB logical types. The implementation, written in C++ and leveraging the YDB SDK, included comprehensive unit tests to validate correctness and handle edge cases. This work addressed the challenge of schema interoperability, reducing manual translation and potential errors, and supported reliable data ingestion pipelines and schema evolution within the YDB platform’s data infrastructure.