YDB: Query data in Arrow format

[vitalyisaev2]

No description provided.

[github-actions]

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[codecov]

Codecov Report

❌ Patch coverage is 27.20848% with 412 lines in your changes missing coverage. Please review.
✅ Project coverage is 52.12%. Comparing base (5a7d7ad) to head (71e2b00).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
app/server/paging/size_arrow.go	0.00%	97 Missing ⚠️
...p/server/datasource/rdbms/ydb/connection_native.go	32.63%	61 Missing and 3 partials ⚠️
app/server/paging/sink.go	0.00%	44 Missing ⚠️
app/server/config/config.go	0.00%	23 Missing ⚠️
...server/datasource/nosql/mongodb/document_reader.go	20.83%	16 Missing and 3 partials ⚠️
app/server/paging/traffic_tracker.go	5.55%	17 Missing ⚠️
...ing/columnar_buffer_arrow_ipc_streaming_default.go	48.38%	12 Missing and 4 partials ⚠️
app/server/observation/storage_sqlite.go	0.00%	15 Missing ⚠️
app/server/datasource/rdbms/datasource.go	50.00%	12 Missing and 2 partials ⚠️
app/server/streaming/read_splits_streamer.go	28.57%	7 Missing and 3 partials ⚠️
... and 48 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #328      +/-   ##
==========================================
- Coverage   52.98%   52.12%   -0.87%     
==========================================
  Files         175      177       +2     
  Lines       13801    14117     +316     
==========================================
+ Hits         7313     7358      +45     
- Misses       5742     6001     +259     
- Partials      746      758      +12     

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