owner stringclasses 14
values | repo stringclasses 14
values | id int64 116k 4.61B | issue_number int32 1 181k | author stringlengths 1 39 | body stringlengths 1 262k | created_at timestamp[us]date 2000-06-06 02:40:44 2026-06-02 20:16:18 | updated_at timestamp[us]date 2000-06-06 02:40:44 2026-06-02 20:22:56 | reactions unknown | author_association stringclasses 5
values |
|---|---|---|---|---|---|---|---|---|---|
ClickHouse | ClickHouse | 682,406,015 | 14,040 | etah000 | I need a reverse mapping, that is, I need map "String" to "VARCHAR". If there is no length contraint, I cannot define the length parameter N for "VARCHAR(N)". | 2020-08-28T08:44:14 | 2020-08-28T08:44:14 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,420,871 | 14,209 | qoega | > Modify find * -type f,l to find -L * -type f will fix the issue:
You can create a pull request with your changes. It will check that other build configurations in CI will not fail. | 2020-08-28T09:14:34 | 2020-08-28T09:14:34 | {} | MEMBER |
ClickHouse | ClickHouse | 682,527,445 | 13,869 | alexey-milovidov | If the required files in procfs are in fact compatible with Linux in recent versions of FreeBSD (we target versions 11+), we will prefer using it instead of using two different APIs under ifdef - just to keep code smaller... | 2020-08-28T12:57:26 | 2020-08-28T12:57:26 | {} | MEMBER |
ClickHouse | ClickHouse | 683,093,477 | 14,093 | alexey-milovidov | @filimonov Does the error repeat on every merge attemt?
Do you see any related messages in `dmesg`?
Write failure may indicate hardware error with the underlying device.
BTW, you can disable AIO for merges completely.
| 2020-08-28T19:09:55 | 2020-08-28T19:09:55 | {} | MEMBER |
ClickHouse | ClickHouse | 683,159,450 | 5,237 | azat | @Onlinehead
>Also, as you see in logs, query has been processed in 75.310 sec, but in logs on Sever2 and Server3 I see that each server processed data much faster:
Can you attach full logs (with timestamps)? | 2020-08-28T21:42:49 | 2020-08-28T21:42:49 | {} | MEMBER |
ClickHouse | ClickHouse | 682,266,871 | 14,157 | bohutang | @Enmk is working on this https://github.com/ClickHouse/ClickHouse/pull/11512
| 2020-08-28T01:04:44 | 2020-08-28T01:04:44 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,358,569 | 14,156 | jjtjiang | The problem is solved . Thanks
| 2020-08-28T06:45:34 | 2020-08-28T06:45:34 | {} | NONE |
ClickHouse | ClickHouse | 682,963,543 | 12,508 | alexey-milovidov | OOM in build:
> 2020-08-28 16:39:14 g++-9: fatal error: Killed signal terminated program cc1plus
2020-08-28 16:39:14 compilation terminated.
https://clickhouse-builds.s3.yandex.net/14223/fc84d12542cd3e69c60e8be4814d3a62e782c40f/clickhouse_build_check/report.html#fail1 | 2020-08-28T17:25:36 | 2020-08-28T17:25:36 | {} | MEMBER |
ClickHouse | ClickHouse | 682,192,085 | 14,197 | yfinkelstein | Apparently the temp dir is a left-over as a result of possible IO exception thrown by `copyData` here:
https://github.com/ClickHouse/ClickHouse/blob/master/src/Storages/MergeTree/DataPartsExchange.cpp#L365
The solution may be simply to surround copyData with try/catch, invoke `disk->removeRecursive(part_download_path... | 2020-08-27T21:09:13 | 2020-08-27T21:09:13 | {} | NONE |
ClickHouse | ClickHouse | 682,252,287 | 13,939 | azat | >Improve the Kafka engine performance by multithreading implementation.
Can you provide some numbers?
>Mybe we can add new opiton, i.e. --enable-multi-threads, which enables users to use multi-threaded Kafka engine, otherwise, original one.
Indeed, this should be done under option (Kafka engine setting?)
>T... | 2020-08-28T00:08:38 | 2020-08-28T00:08:38 | {
"+1": 1
} | MEMBER |
ClickHouse | ClickHouse | 682,281,788 | 14,157 | bohutang | > @BohuTANG ，I have one question, suppose we need to replicate 2 DB from same MySQL, will the bin log read twice by ClickHouse, for each of the DB?
Yes, each database replication channel is a full streaming binlog network.
For multiple databases from the same MySQL maybe we can do it in MaterializeMySQL settings. | 2020-08-28T01:59:18 | 2020-08-28T01:59:18 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,339,637 | 14,197 | amosbird | I've encountered similar issues and I think your understanding is correct. tmp dir will only be removed after reaching https://github.com/ClickHouse/ClickHouse/blob/master/src/Storages/MergeTree/DataPartsExchange.cpp#L392 | 2020-08-28T05:52:06 | 2020-08-28T05:52:06 | {} | COLLABORATOR |
ClickHouse | ClickHouse | 682,479,525 | 14,209 | filimonov | https://github.com/ClickHouse/ClickHouse/pull/14215 | 2020-08-28T11:42:27 | 2020-08-28T11:42:27 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,586,966 | 14,185 | dreamerfable | > @dreamerfable there're some broken links:
>
> ```
> WARNING:mkdocs.structure.pages:Documentation file 'engines/table-engines/mergetree-family/mergetree.md' contains a link to 'sql-reference/statements/alter/index.md' which is not found in the documentation files.
> WARNING:mkdocs.structure.pages:Documentation fi... | 2020-08-28T13:52:22 | 2020-08-28T14:01:24 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,135,096 | 14,191 | den-crane | Though, not related to JDBC.
Numeric enum + TSV
```
echo -e "0\t\t0"|clickhouse-client -q 'insert into EnumTest.Test format TSV'
Code: 36, e.displayText() = DB::Exception: Unknown element '0' for type Enum8('OK' = 0, 'FAILED' = 1)
```
https://github.com/ClickHouse/ClickHouse/issues/11227
https://github.co... | 2020-08-27T19:02:32 | 2020-08-27T19:04:13 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,236,860 | 14,095 | azat | >Functional stateless tests (debug) — fail: 1, passed: 2192, skipped: 15
00974_distributed_join_on - fix #14198 | 2020-08-27T23:12:14 | 2020-08-27T23:12:14 | {
"+1": 1
} | MEMBER |
ClickHouse | ClickHouse | 682,353,819 | 13,320 | amosbird | > does storage join table need optimize?
It doesn't. Updates to StorageJoin is instantly available. | 2020-08-28T06:32:22 | 2020-08-28T06:32:22 | {} | COLLABORATOR |
ClickHouse | ClickHouse | 682,437,862 | 13,879 | vdimir | I'm interested why you have choose PQalgrithm? Did you try [HNSW](https://arxiv.org/abs/1603.09320) ? It also ANN search algorithm, and it's quite popular. Is it looks suitable for your task? What's different?
Implementing such kind of algorithms looks as really interesting task. I'm not sure that I'm ready to start... | 2020-08-28T09:54:16 | 2020-08-28T09:54:16 | {} | MEMBER |
ClickHouse | ClickHouse | 682,484,409 | 12,508 | alesapin | > Massive build failures with "inner CI problem": https://clickhouse-builds.s3.yandex.net/0/478adb75ef53333b334b5b4a0a44c47e6ed52c32/clickhouse_build_check/report.html
Retries added to CI | 2020-08-28T11:55:08 | 2020-08-28T11:55:08 | {} | MEMBER |
ClickHouse | ClickHouse | 682,577,505 | 14,040 | den-crane | > I need a reverse mapping, that is, I need map "String" to "VARCHAR". If there is no length contraint, I cannot define the length parameter N for "VARCHAR(N)".
You can map to the max length your other DB can support. For example if you use mysql you can map String -> varchar(65536) | 2020-08-28T13:32:32 | 2020-08-28T13:32:32 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 683,158,468 | 157 | filimonov | #11160 | 2020-08-28T21:39:52 | 2020-08-28T21:39:52 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,115,917 | 14,145 | akuzm | This is an inconsequential bug in behavior that is non-standard anyway. Won't backport. | 2020-08-27T18:25:46 | 2020-08-27T18:25:46 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,159,239 | 10,682 | alexey-milovidov | This task is on hold. It's easy to implement, it's open to take for community members.
If you are interested implementing this, there is a green light, we will help to review as quick as possible. | 2020-08-27T19:55:50 | 2020-08-27T19:55:50 | {} | MEMBER |
ClickHouse | ClickHouse | 682,277,369 | 10,822 | alexey-milovidov | #11160 | 2020-08-28T01:42:29 | 2020-08-28T01:42:29 | {} | MEMBER |
ClickHouse | ClickHouse | 682,282,466 | 6,572 | zhouyao1994 | > > Timeout exceeded while receiving data from server. Waited for 300 seconds, timeout is 300 seconds.
> > Cancelling query.
>
> It means nothing. Nothing was canceled.
> Optimize was working until the successful end.
>
> `optimize` and `alter` are uninterruptible due timeout. It means that client did not recei... | 2020-08-28T02:01:54 | 2020-08-28T02:01:54 | {} | NONE |
ClickHouse | ClickHouse | 682,471,041 | 14,113 | johnskopis | Tests are green!
Should I move the code somewhere other than Interpreters? cc @filimonov | 2020-08-28T11:20:01 | 2020-08-28T11:20:01 | {} | NONE |
ClickHouse | ClickHouse | 681,924,978 | 12,508 | alexey-milovidov | > 01193_metadata_loading
It's also too long. We are looking for ideas how to rewrite this test.
It should check that metadata is loading in parallel. But timing issues make it difficult to wrap it into functional test. | 2020-08-27T12:43:39 | 2020-08-28T13:11:58 | {} | MEMBER |
ClickHouse | ClickHouse | 682,583,018 | 14,218 | alexey-milovidov | LGTM | 2020-08-28T13:44:09 | 2020-08-28T13:44:09 | {} | MEMBER |
ClickHouse | ClickHouse | 682,885,274 | 13,248 | amosbird | > This simple query works on 19.14 but segfaults on 20.3..20.8:
>
> `SELECT count() FROM test.hits WHERE (CounterID <= 1025) AND (CounterID > 107931)`
I just checked locally and found that it's still related to https://github.com/ClickHouse/ClickHouse/pull/12277 | 2020-08-28T16:53:25 | 2020-08-28T16:53:25 | {} | COLLABORATOR |
ClickHouse | ClickHouse | 682,182,671 | 12,552 | akuzm | If you think you can implement the original proposal fast, maybe we should try. I don't think it is going to lead to serious maintenance problems, we will probably be able to change it to some other schema when we wish.
> @akuzm I understand but actually - using different data types for different formats of binary d... | 2020-08-27T20:47:29 | 2020-08-27T20:47:29 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,342,943 | 14,156 | filimonov | Thank you. It relates to https://github.com/ClickHouse/ClickHouse/pull/11827/files
Workaround is to install tzdata inside docker container.
For example you can create a script like install_tzsata.sh
```
apt-get update
apt-get install --yes tzdata
```
And mount a folder with that script inside container as `/... | 2020-08-28T06:02:33 | 2020-08-28T06:02:33 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,344,247 | 14,156 | filimonov | > in addition，when use hdfs table function ，whether the user name can be passed,HDFS user permissions are different.
thanks.
If you see the problem - please open one more issue with details of how to reproduce that. | 2020-08-28T06:06:26 | 2020-08-28T06:06:26 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,347,122 | 14,203 | filimonov | Thank you, it looks good.
Can you also try to create a test for it?
See
https://github.com/ClickHouse/ClickHouse/blob/25f55bb5ddc9d52da4542339fee4174ec924be18/tests/integration/test_storage_kafka/test.py#L766 | 2020-08-28T06:15:01 | 2020-08-28T06:15:01 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,396,533 | 1,952 | woozhijun | > 19.15.2.2
Hi, Has your problem solved？ | 2020-08-28T08:22:12 | 2020-08-28T08:22:12 | {} | NONE |
ClickHouse | ClickHouse | 682,448,178 | 14,151 | 4ertus2 | > It should be stated (somewhere) that `digits` counts also trailing zeros after decimal point.
Done in new comment to FunctionCountDigits class. | 2020-08-28T10:18:53 | 2020-08-28T10:18:53 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,514,411 | 12,761 | alesapin | Also please fix clang-tidy errors https://clickhouse-builds.s3.yandex.net/12761/4e0c61972109f7c9ffd6962b37e3652e7201bfd8/clickhouse_special_build_check/build_log_758658258_1598611482.txt | 2020-08-28T12:49:21 | 2020-08-28T12:49:21 | {} | MEMBER |
ClickHouse | ClickHouse | 682,580,495 | 14,218 | amosbird | Constant variables are usually unnecessary (compared to pointers and references). | 2020-08-28T13:38:42 | 2020-08-28T13:38:51 | {} | COLLABORATOR |
ClickHouse | ClickHouse | 682,667,858 | 14,207 | filimonov | most probably clickhouse-server was killed by oomkiller.
Please check `dmesg`. | 2020-08-28T14:59:37 | 2020-08-28T14:59:37 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,116,512 | 13,877 | alexey-milovidov | Overlooked: https://clickhouse-test-reports.s3.yandex.net/0/9baa0fbf816ba498c870672b82c13caa53d3f573/functional_stateless_tests_(ubsan)/stderr.log | 2020-08-27T18:26:58 | 2020-08-27T18:26:58 | {} | MEMBER |
ClickHouse | ClickHouse | 682,117,848 | 14,192 | den-crane | Not related to Clickhouse server. It's a question for Superset community or python-driver community | 2020-08-27T18:29:34 | 2020-08-27T18:29:34 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,199,978 | 14,197 | yfinkelstein | Please confirm that my understanding of the problem is correct and that this simple bug fix will take care of the problem. I can then submit a PR if desired. | 2020-08-27T21:27:27 | 2020-08-27T21:27:27 | {} | NONE |
ClickHouse | ClickHouse | 682,238,796 | 12,599 | dengc367 | #14157 mysql replication table cannot support decimal(n,m) type? | 2020-08-27T23:18:42 | 2020-08-27T23:18:42 | {} | NONE |
ClickHouse | ClickHouse | 682,325,956 | 14,202 | donge | ```
(lldb) f 1
frame #1: 0x00000001042fc855 clickhouse`DB::ISink::prepare(this=0x00000001140f3618) at ISink.cpp:19:9 [opt]
16
17 if (input.isFinished())
18 {
-> 19 onFinish();
20 return Status::Finished;
21 }
22
```
I went through some code, path is I... | 2020-08-28T05:01:43 | 2020-08-28T05:03:20 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,428,800 | 14,208 | woozhijun | version: 19.13.3.26，
we have the same problem. | 2020-08-28T09:32:40 | 2020-08-28T09:33:37 | {} | NONE |
ClickHouse | ClickHouse | 682,536,137 | 13,869 | alexey-milovidov | I've read this memo and also found this
> A number of simple syscalls (for example gettimeofday, getpid) are much faster on Linux than on any other operating system due to caching and the vsyscall performance optimizations. Do not rely on them being cheap in performance-critical applications. In general, try hard to... | 2020-08-28T13:02:50 | 2020-08-28T13:02:57 | {} | MEMBER |
ClickHouse | ClickHouse | 682,626,770 | 14,204 | den-crane | Not Clickhouse server issue.
You need some spark connector https://github.com/DmitryBe/clickhouse-spark-connector | 2020-08-28T14:34:03 | 2020-08-28T14:34:03 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,951,518 | 14,045 | radiatorius | > Maybe you can try to install the same version with address sanitizer? You can download it from:
> https://clickhouse-builds.s3.yandex.net/12470/9c642ff38f8d3180b88caa75228fa2052ddf0036/clickhouse_build_check/report.html
>
> ![image](https://user-images.githubusercontent.com/3684697/91466780-48117c80-e898-11ea-9cd... | 2020-08-28T17:15:54 | 2020-08-28T17:15:54 | {} | NONE |
ClickHouse | ClickHouse | 683,008,340 | 14,221 | akuzm | I added some explanation to the docs, if you have any comments it would be good to hear https://github.com/ClickHouse/ClickHouse/pull/14226 | 2020-08-28T18:04:12 | 2020-08-28T18:04:12 | {
"+1": 1
} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,245,645 | 10,373 | azat | >Functional stateless tests (unbundled) — fail: 1, passed: 2156, skipped: 50
```
2020-08-27 23:43:34 01085_max_distributed_connections: [ FAIL ] 2.00 sec. - return code 124
2020-08-27 23:43:34 , result:
2020-08-27 23:43:34
2020-08-27 23:43:34 0
2020-08-27 23:43:34 0
2020-0... | 2020-08-27T23:43:37 | 2020-08-27T23:43:37 | {} | MEMBER |
ClickHouse | ClickHouse | 682,250,634 | 13,991 | bohutang | > what is the Chinese examples article link?
[MySQL实时复制与实现](https://bohutang.me/2020/07/26/clickhouse-and-friends-mysql-replication/)
[MySQL实时复制之GTID模式](https://bohutang.me/2020/08/26/clickhouse-and-friends-mysql-gtid-replication/) | 2020-08-28T00:03:05 | 2020-08-28T00:03:05 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,385,263 | 11,160 | saippuakauppias | Fresh user-agents (with tests) are here: https://github.com/matomo-org/device-detector/tree/master/regexes
Maybe they'll be right for you.
| 2020-08-28T07:55:30 | 2020-08-28T07:55:30 | {} | NONE |
ClickHouse | ClickHouse | 682,599,891 | 14,185 | blinkov | @dreamerfable likely for zh version that content is currently located in `sql-reference/statements/alter.md`, you can link there. | 2020-08-28T14:15:25 | 2020-08-28T14:15:25 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 683,152,563 | 14,093 | alexey-milovidov | `min_merge_bytes_to_use_direct_io` in MergeTreeSettings. | 2020-08-28T21:22:35 | 2020-08-28T21:22:35 | {} | MEMBER |
ClickHouse | ClickHouse | 682,096,176 | 14,149 | MyroTk | @vitlibar | 2020-08-27T17:46:06 | 2020-08-27T17:46:06 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,119,227 | 13,877 | alexey-milovidov | `SELECT defaultValueOfTypeName(FQDN());` | 2020-08-27T18:32:24 | 2020-08-27T18:32:24 | {} | MEMBER |
ClickHouse | ClickHouse | 682,141,727 | 10,682 | pavigor | Will this setting added in the near future? | 2020-08-27T19:17:14 | 2020-08-27T19:17:14 | {} | NONE |
ClickHouse | ClickHouse | 683,151,992 | 14,211 | filimonov | Resolves #6104? | 2020-08-28T21:21:05 | 2020-08-28T21:21:05 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 683,154,197 | 14,220 | filimonov | Shouldn't final do all needed stuff at once? I.e. remerge all parts (even if it's a single part), calculate all indexes, materialize ttl, materialize missing columns etc?
Ps. I did't check the code, may be i just misleaded by PR description | 2020-08-28T21:27:15 | 2020-08-28T21:28:51 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,201,984 | 12,413 | alexey-milovidov | debconf does not follow script execution. Instead it parses the script and tries to ask for configuration for all options listed inside:
```
root@4b0efbc31f64:/packages# ar x clickhouse-server_20.8.1.4478_all.deb
root@4b0efbc31f64:/packages# bash -x ./postinst
+ set -e
+ CLICKHOUSE_USER=clickhouse
+ CLICKHOUSE_... | 2020-08-27T21:32:31 | 2020-08-27T21:32:31 | {} | MEMBER |
ClickHouse | ClickHouse | 683,148,925 | 14,093 | filimonov | > @filimonov Does the error repeat on every merge attemt?
Yes. Very determenistic. @UnamedRus was debugging that, if i understand correctly when certain 2 source parts were being merged, it was failing. If only one of them were processed (with others from that partition) - it were working fine.
> Write failure m... | 2020-08-28T21:12:39 | 2020-08-28T21:15:29 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 683,155,503 | 14,204 | filimonov | Also you clickhouse version is very old 19.9.2.4 | 2020-08-28T21:31:09 | 2020-08-28T21:31:09 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 683,158,570 | 13,961 | azat | @yancheng44
Can you attach logs? (`set send_logs_level=trace` and run the query after) | 2020-08-28T21:40:14 | 2020-08-28T21:40:14 | {} | MEMBER |
ClickHouse | ClickHouse | 682,115,802 | 14,147 | akuzm | This is an inconsequential bug in behavior that is non-standard anyway. Won't backport. | 2020-08-27T18:25:30 | 2020-08-27T18:25:30 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,115,848 | 14,146 | akuzm | This is an inconsequential bug in behavior that is non-standard anyway. Won't backport. | 2020-08-27T18:25:36 | 2020-08-27T18:25:36 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,301,408 | 14,156 | jjtjiang | 一、 I use clickhouse with docker having not other custom build . it work well with version 19.14 、20.1、20.2、20.3、20.4. it will not working with version 20.5 、20.6、20.7.
二. stack trace is below:
2020.08.28 03:04:22.776710 [ 112 ] {744e3e0f-c7b7-4a24-bbca-1c0f94f8ae18} <Error> executeQuery: std::exception. Code: 1... | 2020-08-28T03:14:31 | 2020-08-28T03:14:31 | {} | NONE |
ClickHouse | ClickHouse | 682,499,663 | 13,761 | alexey-milovidov | Will reassign and take for review... | 2020-08-28T12:32:16 | 2020-08-28T12:32:16 | {} | MEMBER |
ClickHouse | ClickHouse | 682,504,796 | 13,869 | urgordeadbeef | > By the way, why procfs does not give expected results? According to man page, the format is the same...
https://wiki.freebsd.org/AvoidingLinuxisms
| 2020-08-28T12:43:13 | 2020-08-28T12:43:13 | {} | NONE |
ClickHouse | ClickHouse | 682,729,928 | 14,215 | alesapin | Build OK, unbundled broken in master. | 2020-08-28T15:39:56 | 2020-08-28T15:39:56 | {} | MEMBER |
ClickHouse | ClickHouse | 682,109,059 | 13,991 | tavplubix | > where is the document of MaterializeMySQL feature?
Documentation is not written yet. The feature is experimental and its behaviour can be slightly changed.
As for now there is a notes with some usage examples [here](https://translate.google.com/translate?sl=zh-CN&tl=en&u=https%3A%2F%2Fbohutang.me%2F2020%2F07%2F26... | 2020-08-27T18:11:26 | 2020-08-27T18:21:28 | {} | MEMBER |
ClickHouse | ClickHouse | 682,136,620 | 14,191 | den-crane | How to distinguish automatically Enum in CSV and TSV ?
Enum8('OK' = 0, '0' = 1) | 2020-08-27T19:05:41 | 2020-08-27T19:05:41 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,138,245 | 14,191 | den-crane | So , right now it's impossible to insert numeric enum with TSV (and JDBC batched insert in TSV format)
https://github.com/ClickHouse/ClickHouse/issues/7971#issuecomment-624222686 | 2020-08-27T19:09:22 | 2020-08-27T19:09:22 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,239,426 | 13,991 | l1t1 | what is the Chinese examples article link? | 2020-08-27T23:20:52 | 2020-08-27T23:20:52 | {} | NONE |
ClickHouse | ClickHouse | 682,304,776 | 14,040 | etah000 | Yes, such as "String(32)". We want to map "String" to "VARCHAR". | 2020-08-28T03:28:28 | 2020-08-28T03:28:28 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,439,813 | 14,209 | pingyu | > > Modify find * -type f,l to find -L * -type f will fix the issue:
> > You can create a pull request with your changes. It will check that other build configurations in CI will not fail.
OK ! | 2020-08-28T09:58:53 | 2020-08-28T09:58:53 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,763,113 | 14,093 | UnamedRus | I tried to repeat error.
ClickHouse server version 20.3.11
```
executeQuery: Code: 236, e.displayText() = DB::Exception: Cancelled merging parts (version 20.3.11.97 (official build)) (from 127.0.0.1:37906) (in query: OPTIMIZE TABLE bat2.quote FINAL), Stack trace (when copying this message, always include the lines... | 2020-08-28T15:55:05 | 2020-08-28T15:55:05 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,216,967 | 8,316 | alexey-milovidov | It indicates that something is wrong with installation or with debian machinery. | 2020-08-27T22:12:04 | 2020-08-27T22:12:04 | {} | MEMBER |
ClickHouse | ClickHouse | 682,238,880 | 14,001 | dengc367 | #14157 mysql replication table cannot support decimal(n,m) type? | 2020-08-27T23:19:02 | 2020-08-27T23:19:02 | {} | NONE |
ClickHouse | ClickHouse | 682,290,142 | 14,160 | Fanduzi | > You may try rewrite LEFT JOIN with INNER JOIN and UNION ALL like this
>
> ```
> SELECT a.id from dwh.app_users a
> LEFT JOIN dwh.full_orders b
> ON a.id = b.uid
> ```
>
> ```
> SELECT a.id FROM dwh.app_users a
> GLOBAL INNER JOIN dwh.full_orders b
> ON a.id = b.uid
> UNION ALL
> SELECT a.id FROM dwh.ap... | 2020-08-28T02:31:20 | 2020-08-28T02:40:02 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,516,803 | 14,151 | alexey-milovidov | Unbundled build is broken in master. | 2020-08-28T12:50:49 | 2020-08-28T12:50:57 | {} | MEMBER |
ClickHouse | ClickHouse | 682,581,454 | 14,215 | alesapin | > Please fix the comment and it will LGTM.
fixed | 2020-08-28T13:40:49 | 2020-08-28T13:40:49 | {} | MEMBER |
ClickHouse | ClickHouse | 682,270,145 | 14,157 | liangli1213 | @BohuTANG ，I have one question, suppose we need to replicate 2 DB from same MySQL, will the bin log read twice by ClickHouse, for each of the DB? | 2020-08-28T01:15:50 | 2020-08-28T01:15:50 | {} | NONE |
ClickHouse | ClickHouse | 682,347,898 | 14,003 | bharatnc | How about a function called `arrayNaturalSort` which will only accept a array of strings and sort them in `natural` order? Like:
```sql
SELECT arrayNaturalSort(['hello30', 'hello4world10', 'hello123', 'hello4world5'])
┌─arrayNaturalSort(['hello30', 'hello4world10', 'hello123', 'hello4world5'])─┐
│ ['hello4world5... | 2020-08-28T06:17:13 | 2020-08-28T06:17:13 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,371,955 | 14,185 | blinkov | @dreamerfable there're some broken links:
```
WARNING:mkdocs.structure.pages:Documentation file 'engines/table-engines/mergetree-family/mergetree.md' contains a link to 'sql-reference/statements/alter/index.md' which is not found in the documentation files.
WARNING:mkdocs.structure.pages:Documentation file 'engines/... | 2020-08-28T07:21:48 | 2020-08-28T07:21:48 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,572,058 | 14,040 | alexey-milovidov | Don't understand why the issue is closed.
We don't have length constraints in data types and we can consider implementing this feature.
Right now you can use separate constraints:
```
CREATE TABLE v1
(
`A` varchar(255),
CONSTRAINT length_A CHECK length(A) <= 255
)
ENGINE = MergeTree
ORDER BY tuple()... | 2020-08-28T13:25:13 | 2020-08-28T13:25:13 | {} | MEMBER |
ClickHouse | ClickHouse | 682,704,696 | 14,221 | akuzm | > The tests aren't good enough since I didn't find a way to setup a distributed query test with multiple shards locally. [Docs](https://clickhouse.tech/docs/en/development/tests/) aren't helpful as well or I'm missing something. Would be glad to get advice or hint how such tests could be set up locally.
>
Normally... | 2020-08-28T15:23:23 | 2020-08-28T15:23:23 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 683,098,460 | 14,113 | azat | > I think shared_ptr here is simpler and requires less resources than copying the credentials for every request.
In the same manner clusters update works, so I guess it is fine | 2020-08-28T19:20:00 | 2020-08-28T19:20:00 | {} | MEMBER |
ClickHouse | ClickHouse | 682,115,634 | 14,148 | akuzm | This is an inconsequential bug in behavior that is non-standard anyway. Won't backport. | 2020-08-27T18:25:09 | 2020-08-27T18:25:09 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,121,400 | 13,877 | alexey-milovidov | https://github.com/ClickHouse/ClickHouse/pull/14193 | 2020-08-27T18:37:15 | 2020-08-27T18:37:15 | {} | MEMBER |
ClickHouse | ClickHouse | 682,203,596 | 12,413 | alexey-milovidov | > Note: These questions are asked by a separate config script, not by the postinst, so the package can be configured before it is installed, or reconfigured after it is installed. Do not make your postinst use debconf to ask questions.
http://www.fifi.org/doc/debconf-doc/tutorial.html | 2020-08-27T21:36:37 | 2020-08-27T21:36:37 | {} | MEMBER |
ClickHouse | ClickHouse | 682,268,513 | 14,168 | alexey-milovidov | #14193 | 2020-08-28T01:10:19 | 2020-08-28T01:10:19 | {} | MEMBER |
ClickHouse | ClickHouse | 682,307,339 | 14,040 | den-crane | @etah000 What do you mean by "maximal length contraint" ?
I don't see an issue.
```
CREATE TABLE v1
(
`A` varchar(255)
)
ENGINE = MergeTree
ORDER BY tuple()
Ok.
0 rows in set. Elapsed: 0.005 sec.
``` | 2020-08-28T03:40:24 | 2020-08-28T03:40:24 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,375,811 | 14,201 | ramazanpolat | I would like to add some more detail for this feature.
* Since KafkaEngine is bidirectional, both producer and consumer errors should be logged.
* Error log should indicate the database and table name which uses KafkaEngine.
* Error log should have a DateTime column indicating date and time of the incident.
* Er... | 2020-08-28T07:31:47 | 2020-08-28T07:31:47 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,672,113 | 14,185 | dreamerfable | @blinkov ok, I changed wrong links. thanks. | 2020-08-28T15:02:22 | 2020-08-28T15:02:22 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,839,131 | 13,280 | alesapin | Performance not affected. Unbundled build broken in master. | 2020-08-28T16:31:50 | 2020-08-28T16:32:05 | {} | MEMBER |
ClickHouse | ClickHouse | 682,142,856 | 14,196 | alexey-milovidov | We already have half of the fundamentals to implement this task.
How to get started implementing it:
- we already restrict using of dots in column names;
- pass column names with dots as is to IStorage::read;
- blocks/chunks will have names with dots passed around as we already do for Nested;
- edit the `Storage... | 2020-08-27T19:19:34 | 2020-08-27T19:19:34 | {} | MEMBER |
ClickHouse | ClickHouse | 682,177,577 | 12,552 | akuzm | > BTW, how do you want to deal with:
>
> > We also should support having single type of state for slightly different aggregate functions, for example sum and sumIf.
>
> I think that we can convert user provided data type as if it is a synonim for another data type.
Yes, I think this would work. Maybe we don't ... | 2020-08-27T20:35:47 | 2020-08-27T20:35:47 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 682,541,799 | 13,869 | alexey-milovidov | PS. Could you please provide a link to FreeBSD image that is bootable under QEMU and has virtual network driver + ssh?
I know that Vagrant does it, but it does not work in our CI for some reason... | 2020-08-28T13:06:22 | 2020-08-28T13:06:22 | {} | MEMBER |
ClickHouse | ClickHouse | 682,699,798 | 14,222 | zhang2014 | fixed in https://github.com/ClickHouse/ClickHouse/pull/14223 | 2020-08-28T15:20:16 | 2020-08-28T15:20:16 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 668,150,229 | 13,153 | alexey-milovidov | @alesapin It looks like we have catched two flaky tests in this PR at once? | 2020-08-03T17:37:19 | 2020-08-03T17:37:19 | {
"confused": 1
} | MEMBER |
ClickHouse | ClickHouse | 668,157,317 | 13,061 | vzakaznikov | @vitlibar, this PR is ready for your review. Testflows checks are passing. | 2020-08-03T17:50:44 | 2020-08-03T17:50:44 | {} | CONTRIBUTOR |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.