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Better changelog

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alesapin 2019-04-12 10:49:42 +03:00
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CHANGELOG.md
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* `multiSearchFirstPosition` function was added. [#4780](https://github.com/yandex/ClickHouse/pull/4780) ([Danila Kutenin](https://github.com/danlark1))
* Implement the predefined expression filter per row for tables. [#4792](https://github.com/yandex/ClickHouse/pull/4792) ([Ivan](https://github.com/abyss7))
* A new type of data skipping indices based on bloom filters (can be used for `equal`, `in` and `like` functions). [#4499](https://github.com/yandex/ClickHouse/pull/4499) ([Nikita Vasilev](https://github.com/nikvas0))
* Added `ASOF JOIN` which allows to run queries that join to the most recent value known. [#4774](https://github.com/yandex/ClickHouse/pull/4774) ([Martijn Bakker](https://github.com/Gladdy))
* Added `ASOF JOIN` which allows to run queries that join to the most recent value known. [#4774](https://github.com/yandex/ClickHouse/pull/4774) [#4867](https://github.com/yandex/ClickHouse/pull/4867) [#4863](https://github.com/yandex/ClickHouse/pull/4863) ([Martijn Bakker](https://github.com/Gladdy))
* Rewrite multiple `COMMA JOIN` to `CROSS JOIN`. Then rewrite them to `INNER JOIN` if possible. [#4661](https://github.com/yandex/ClickHouse/pull/4661) ([Artem Zuikov](https://github.com/4ertus2))
### Improvement
* `topK` and `topKWeighted` now supports custom `loadFactor` (fixes #4252). [#4634](https://github.com/yandex/ClickHouse/pull/4634) ([Kirill Danshin](https://github.com/kirillDanshin))
* `topK` and `topKWeighted` now supports custom `loadFactor` (fixes issue [#4252](https://github.com/yandex/ClickHouse/issues/4252)). [#4634](https://github.com/yandex/ClickHouse/pull/4634) ([Kirill Danshin](https://github.com/kirillDanshin))
* Allow to use `parallel_replicas_count > 1` even for tables without sampling (the setting is simply ignored for them). In previous versions it was lead to exception. [#4637](https://github.com/yandex/ClickHouse/pull/4637) ([Alexey Elymanov](https://github.com/digitalist))
* Support for `CREATE OR REPLACE VIEW`. Allow to create a view or set a new definition in a single statement. [#4654](https://github.com/yandex/ClickHouse/pull/4654) ([Boris Granveaud](https://github.com/bgranvea))
* `Buffer` table engine now supports `PREWHERE`. [#4671](https://github.com/yandex/ClickHouse/pull/4671) ([Yangkuan Liu](https://github.com/LiuYangkuan))
@ -20,7 +20,6 @@
* Allow to disable functions with `hyperscan` library on per user basis to limit potentially excessive and uncontrolled resource usage. [#4816](https://github.com/yandex/ClickHouse/pull/4816) ([alexey-milovidov](https://github.com/alexey-milovidov))
* Add version number logging in all errors. [#4824](https://github.com/yandex/ClickHouse/pull/4824) ([proller](https://github.com/proller))
* Added restriction to the `multiMatch` functions which requires string size to fit into `unsigned int`. Also added the number of arguments limit to the `multiSearch` functions. [#4834](https://github.com/yandex/ClickHouse/pull/4834) ([Danila Kutenin](https://github.com/danlark1))
* Adapt the ASOF join strictness to support multiple column types. [#4863](https://github.com/yandex/ClickHouse/pull/4863) ([Martijn Bakker](https://github.com/Gladdy))
* Improved usage of scratch space and error handling in Hyperscan. [#4866](https://github.com/yandex/ClickHouse/pull/4866) ([Danila Kutenin](https://github.com/danlark1))
* Fill `system.graphite_detentions` from a table config of `*GraphiteMergeTree` engine tables. [#4584](https://github.com/yandex/ClickHouse/pull/4584) ([Mikhail f. Shiryaev](https://github.com/Felixoid))
* Rename `trigramDistance` function to `ngramDistance` and add more functions with `CaseInsensitive` and `UTF`. [#4602](https://github.com/yandex/ClickHouse/pull/4602) ([Danila Kutenin](https://github.com/danlark1))
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* Deadlock may happen while executing `DROP DATABASE dictionary` query. [#4701](https://github.com/yandex/ClickHouse/pull/4701) ([alexey-milovidov](https://github.com/alexey-milovidov))
* Fix undefinied behavior in `median` and `quantile` functions. [#4702](https://github.com/yandex/ClickHouse/pull/4702) ([hcz](https://github.com/hczhcz))
* Fix compression level detection when `network_compression_method` in lowercase. Broken in v19.1. [#4706](https://github.com/yandex/ClickHouse/pull/4706) ([proller](https://github.com/proller))
* Keep ordinary, `DEFAULT`, `MATERIALIZED` and `ALIAS` columns in a single list. Fixes #2867. [#4707](https://github.com/yandex/ClickHouse/pull/4707) ([Alex Zatelepin](https://github.com/ztlpn))
* Fixed ignorance of `<timezone>UTC</timezone>` setting (fixes issue #4658). [#4718](https://github.com/yandex/ClickHouse/pull/4718) ([proller](https://github.com/proller))
* Keep ordinary, `DEFAULT`, `MATERIALIZED` and `ALIAS` columns in a single list (fixes issue [#2867](https://github.com/yandex/ClickHouse/issues/2867)). [#4707](https://github.com/yandex/ClickHouse/pull/4707) ([Alex Zatelepin](https://github.com/ztlpn))
* Fixed ignorance of `<timezone>UTC</timezone>` setting (fixes issue [#4658](https://github.com/yandex/ClickHouse/issues/4658)). [#4718](https://github.com/yandex/ClickHouse/pull/4718) ([proller](https://github.com/proller))
* Fix `histogram` function behaviour with `Distributed` tables. [#4741](https://github.com/yandex/ClickHouse/pull/4741) ([olegkv](https://github.com/olegkv))
* Fixed tsan report `destroy of a locked mutex`. [#4742](https://github.com/yandex/ClickHouse/pull/4742) ([alexey-milovidov](https://github.com/alexey-milovidov))
* Fixed TSan report on shutdown due to race condition in system logs usage. Fixed potential use-after-free on shutdown when part_log is enabled. [#4758](https://github.com/yandex/ClickHouse/pull/4758) ([alexey-milovidov](https://github.com/alexey-milovidov))
* Fix recheck parts in ReplicatedMergeTreeAlterThread in case of error. [#4772](https://github.com/yandex/ClickHouse/pull/4772) ([Nikolai Kochetov](https://github.com/KochetovNicolai))
* Fix recheck parts in `ReplicatedMergeTreeAlterThread` in case of error. [#4772](https://github.com/yandex/ClickHouse/pull/4772) ([Nikolai Kochetov](https://github.com/KochetovNicolai))
* Arithmetic operations on intermediate aggregate function states were not working for constant arguments (such as subquery results). [#4776](https://github.com/yandex/ClickHouse/pull/4776) ([alexey-milovidov](https://github.com/alexey-milovidov))
* Always backquote column names in metadata. Otherwise it's impossible to create a table with column named `index` (server won't restart due to malformed `ATTACH` query in metadata). [#4782](https://github.com/yandex/ClickHouse/pull/4782) ([alexey-milovidov](https://github.com/alexey-milovidov))
* Fix crash in `ALTER ... MODIFY ORDER BY` on `Distributed` table. [#4790](https://github.com/yandex/ClickHouse/pull/4790) ([TCeason](https://github.com/TCeason))
* Fix segfault in `JOIN ON` with enabled `enable_optimize_predicate_expression`. [#4794](https://github.com/yandex/ClickHouse/pull/4794) ([Winter Zhang](https://github.com/zhang2014))
* Fix bug with adding an extraneous row after consuming a protobuf message from Kafka. [#4808](https://github.com/yandex/ClickHouse/pull/4808) ([Vitaly Baranov](https://github.com/vitlibar))
* Fix crash of `JOIN` on not-nullable vs nullable column. Fix NULLs in right keys in `ANY JOIN` + `join_use_nulls`. [#4815](https://github.com/yandex/ClickHouse/pull/4815) ([Artem Zuikov](https://github.com/4ertus2))
* Fix crash of `JOIN` on not-nullable vs nullable column. Fix `NULLs` in right keys in `ANY JOIN` + `join_use_nulls`. [#4815](https://github.com/yandex/ClickHouse/pull/4815) ([Artem Zuikov](https://github.com/4ertus2))
* Fix segmentation fault in `clickhouse-copier`. [#4835](https://github.com/yandex/ClickHouse/pull/4835) ([proller](https://github.com/proller))
* Fixed race condition in `SELECT` from `system.tables` if the table is renamed or altered concurrently. [#4836](https://github.com/yandex/ClickHouse/pull/4836) ([alexey-milovidov](https://github.com/alexey-milovidov))
* Fixed data race when fetching data part that is already obsolete. [#4839](https://github.com/yandex/ClickHouse/pull/4839) ([alexey-milovidov](https://github.com/alexey-milovidov))
@ -55,9 +54,8 @@
* Fixed reading from `Array(LowCardinality)` column in rare case when column contained a long sequence of empty arrays. [#4850](https://github.com/yandex/ClickHouse/pull/4850) ([Nikolai Kochetov](https://github.com/KochetovNicolai))
* Fix crash in `FULL/RIGHT JOIN` when we joining on nullable vs not nullable. [#4855](https://github.com/yandex/ClickHouse/pull/4855) ([Artem Zuikov](https://github.com/4ertus2))
* Fix `No message received` exception while fetching parts between replicas. [#4856](https://github.com/yandex/ClickHouse/pull/4856) ([alesapin](https://github.com/alesapin))
* Fix bug with incorrect timestamp for the right-hand table of the ASOF join. [#4867](https://github.com/yandex/ClickHouse/pull/4867) ([Martijn Bakker](https://github.com/Gladdy))
* Fixed `arrayIntersect` function wrong result in case of several repeated values in single array. [#4871](https://github.com/yandex/ClickHouse/pull/4871) ([Nikolai Kochetov](https://github.com/KochetovNicolai))
* Fix a race condition during concurrent `ALTER COLUMN` queries that could lead to a server crash (fixes issue #3421). [#4592](https://github.com/yandex/ClickHouse/pull/4592) ([Alex Zatelepin](https://github.com/ztlpn))
* Fix a race condition during concurrent `ALTER COLUMN` queries that could lead to a server crash (fixes issue [#3421](https://github.com/yandex/ClickHouse/issues/3421)). [#4592](https://github.com/yandex/ClickHouse/pull/4592) ([Alex Zatelepin](https://github.com/ztlpn))
* Fix incorrect result in `FULL/RIGHT JOIN` with const column. [#4723](https://github.com/yandex/ClickHouse/pull/4723) ([Artem Zuikov](https://github.com/4ertus2))
* Fix duplicates in `GLOBAL JOIN` with asterisk. [#4705](https://github.com/yandex/ClickHouse/pull/4705) ([Artem Zuikov](https://github.com/4ertus2))
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### Build/Testing/Packaging Improvement
* Hardening debug build: more granular memory mappings and ASLR; add memory protection for mark cache and index. This allows to find more memory stomping bugs in case when ASan and MSan cannot do it. [#4632](https://github.com/yandex/ClickHouse/pull/4632) ([alexey-milovidov](https://github.com/alexey-milovidov))
* Add support for cmake variables ENABLE_PROTOBUF, ENABLE_PARQUET and ENABLE_BROTLI which allows to enable/disable the above features (same as we can do for librdkafka, mysql, etc). [#4669](https://github.com/yandex/ClickHouse/pull/4669) ([Silviu Caragea](https://github.com/silviucpp))
* Add support for cmake variables `ENABLE_PROTOBUF`, `ENABLE_PARQUET` and `ENABLE_BROTLI` which allows to enable/disable the above features (same as we can do for librdkafka, mysql, etc). [#4669](https://github.com/yandex/ClickHouse/pull/4669) ([Silviu Caragea](https://github.com/silviucpp))
* Add ability to print process list and stacktraces of all threads if some queries are hung after test run. [#4675](https://github.com/yandex/ClickHouse/pull/4675) ([alesapin](https://github.com/alesapin))
* Add retries on `Connection loss` error in `clickhouse-test`. [#4682](https://github.com/yandex/ClickHouse/pull/4682) ([alesapin](https://github.com/alesapin))
* Add freebsd build with vagrant and build with thread sanitizer to packager script. [#4712](https://github.com/yandex/ClickHouse/pull/4712) [#4748](https://github.com/yandex/ClickHouse/pull/4748) ([alesapin](https://github.com/alesapin))
* Now user asked for password for user 'default' during installation. [#4725](https://github.com/yandex/ClickHouse/pull/4725) ([proller](https://github.com/proller))
* Now user asked for password for user `'default'` during installation. [#4725](https://github.com/yandex/ClickHouse/pull/4725) ([proller](https://github.com/proller))
* Suppress warning in `rdkafka` library. [#4740](https://github.com/yandex/ClickHouse/pull/4740) ([alexey-milovidov](https://github.com/alexey-milovidov))
* Allow ability to build without ssl. [#4750](https://github.com/yandex/ClickHouse/pull/4750) ([proller](https://github.com/proller))
* Add a way to launch clickhouse-server image from a custom user. [#4753](https://github.com/yandex/ClickHouse/pull/4753) ([Mikhail f. Shiryaev](https://github.com/Felixoid))