Artem Zuikov

[Apache Arrow Flight] Support DoPut

1

We have BulkUpsert method to insert big portions of data. https://ydb.tech/en/docs/reference/ydb-sdk/recipes/bulk_upsert/ We also want to support Apache Arrow Flight interface for this issue: * https://arrow.apache.org/docs/format/Flight.html (DoPut) * https://arrow.apache.org/docs/format/FlightSql.html (CommandStatementUpdate) It...

Replace new/delete with shared_ptr

1

Some refactoring for better deletes and exception safety I've tested it only on linux + CPU in bech mode.

There's an issue with C++ snappy decompression here https://github.com/apache/arrow/issues/31992#issuecomment-2567972537 People say it's a good parquet to save it in parquet-testing.

FIXED_LEN_BYTE_ARRAY + DELTA_BYTE_ARRAY for Decimals

5

Arrow C++ reader had troubles with FLBA + DELTA_BYTE_ARRAY. There're issues in Decimal readings with such encodings in ClickHouse, DuckDB, Velox right now. It would be great if you make...

HTTP JWT authorization with "Authorization Bearer" and JWKS (RSA only)

18

### Changelog category (leave one): - New Feature ### Changelog entry (a [user-readable short description](https://github.com/ClickHouse/ClickHouse/blob/master/docs/changelog_entry_guidelines.md) of the changes that goes into CHANGELOG.md): Add JWT authorization over HTTP. ### Documentation entry...

Is big Decimal in Parquet big endian?

4

### Describe the usage question you have. Please include as many useful details as possible. It's not clear from description https://parquet.apache.org/docs/file-format/data-pages/encodings/ how are big Decimals (precision >= 18) placed. As...

Iceberg's parquets do not have field_id (schema evolution is broken)

2

### Backend VL (Velox) ### Bug description [Iceberg spec](https://iceberg.apache.org/spec/#parquet) requires field_ids are set: > Column IDs are required to be stored as [field IDs](http://github.com/apache/parquet-format/blob/40699d05bd24181de6b1457babbee2c16dce3803/src/main/thrift/parquet.thrift#L459) on the parquet schema. As I...