ydb/library/cpp/yt/misc/unittests, branch mainMirror of YDB github reposhttps://code.mastervirt.ru/ydb/atom?h=main2026-03-05T10:11:05Z[yt] make SplitMix & HashCombine bit-independent2026-03-05T10:11:05Zvaskovasko@yandex-team.com2026-03-05T08:17:14Zurn:sha1:d0739058c7dbc0e2e2b8aa6c5bc399522d5e6fca
add realization of hash-functions for 32-bit platforms
commit_hash:3247a0524d3b66d759bf5ebd598be84c8dfb5837
YT-27436 Introduce PP_IS_EMPTY2026-02-18T15:28:10Zdann239dann239@yandex-team.com2026-02-18T14:50:28Zurn:sha1:80feb38637cfcd598a0d734105f1ffb10dc124a2
commit_hash:96d6c16b241e44c6cd7910b16864fd0d037c6e8b
YT-27167: Better TBitwiseUnversionedValueHash2026-02-11T01:27:50Zpavookpavook@yandex-team.com2026-02-11T01:03:48Zurn:sha1:72e2e4fb5634001484795bce3f6ca27e21b24905
+20-30% throughput on UpdateColumnarStatistics benchmark (with large statistics enabled)
- Do not factor in value.Id when calculating column digest
- Pack metadata directly instead of multiple HashCombine calls
- Use SplitMix64 finalizer for proper bit distribution
- Use cheaper xor with metadata instead of HashCombine
- Use XXH3 for strings
- Remove unnecessary copy
- Measured quality increased: on 20 (c=1..20) sequences `{nc | n \in [1..10^6]}` MAE dropped from ~36% to ~20%
HLL digests might temporarily suffer a 2x increase upon merging with the previously computed ones.
commit_hash:0bf661245cf1848ba9ef8b6c840c18dfd05bd2a4
YT-27244: range helpers move to library2026-02-05T09:20:53Zpanesherpanesher@yandex-team.com2026-02-05T08:45:44Zurn:sha1:626d15281a019d018dbb212dedefbc06e78a9edb
commit_hash:f257ebdacfbf0549a0f55cc37df2c059629bac3a
YT-19137: Make full_read a first class citizen2025-08-18T15:27:47Zcoteeqcoteeq@yandex-team.com2025-08-18T14:35:19Zurn:sha1:e494596dab9fab0a6e8af9d9f258c5ffa7c0917a
commit_hash:dac730c0d9dc052edce7dd7873c51687ea19082e
YT: Allow serializing and deserializing plain enums to uint642025-03-06T18:05:52Zdgoleardgolear@yandex-team.com2025-03-06T17:14:19Zurn:sha1:115c3a54ab9250023ac3db71c4353b53ea5fd30e
commit_hash:abf11126ef1a914939d506a79dd7c4f11df177f2
Intermediate changes2024-12-24T15:24:16Zrobot-pigletrobot-piglet@yandex-team.com2024-12-24T15:04:59Zurn:sha1:b821606f7bd364dc755d37b5bcb3559130675364
commit_hash:41c16027e2f796197b98307419a63da9fa3f1a88
Fix various issues2024-12-06T09:44:32Zpogorelovpogorelov@yandex-team.com2024-12-06T09:28:22Zurn:sha1:347c99aa0858db7f96def6168af25f36485a02b3
commit_hash:50f729d3716d8b1f5b852cfc008e228172fb79c4
YT-22885: Handle unknown values in (Try)CheckedEnumCast2024-11-16T17:48:13Zbabenkobabenko@yandex-team.com2024-11-16T17:38:23Zurn:sha1:e0ece3a670de1090fcb097575f087364742a9ef6
commit_hash:5ce8019253cdb971d1af36350e3efa3a4ec8545c
Intermediate changes2024-11-08T16:54:05Zrobot-pigletrobot-piglet@yandex-team.com2024-11-08T16:42:27Zurn:sha1:ee58aeee73246a71e873abd822d7c7ba14431621
commit_hash:17dbd6d7e5fc440afa2d816e245a73e25135bfb5