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 | 475,374,139 | 4,755 | blinkov | cc @zhang2014 @sundy-li | 2019-03-21T19:39:07 | 2019-03-21T19:39:07 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,595,709 | 4,731 | Slind14 | Is there any way to let it filter before doing the join without a subselect? | 2019-03-22T12:04:44 | 2019-03-22T12:04:44 | {} | NONE |
ClickHouse | ClickHouse | 475,259,984 | 4,736 | aegorov05 | > > > `VersionedCollapsingMergeTree` is a very specific table engine. Do you have a reason to use it?
> > > Does the issue persist if you use `MergeTree`?
> >
> >
> > Changing engine to standard MergeTree does not make any difference. Instead of 3 million records we only got 2941414.
>
> So the difference is 2... | 2019-03-21T14:48:22 | 2019-03-21T14:48:22 | {} | NONE |
ClickHouse | ClickHouse | 476,220,913 | 4,791 | den-crane | probably it's related to O_DIRECT https://github.com/docker/desktop-feedback/issues/11
try to set (ch config) min_bytes_to_use_direct_io = 100000000000000
| 2019-03-25T14:28:00 | 2019-03-25T14:28:52 | {
"+1": 1
} | CONTRIBUTOR |
ClickHouse | ClickHouse | 476,302,025 | 4,797 | den-crane | select now(), sleep(1),n from (select number, now() n from numbers(5) settings max_block_size=1)
IMHO now() is a constant per query. | 2019-03-25T17:32:46 | 2019-03-25T17:32:46 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,344,441 | 4,361 | alesapin | I have added integration test, but Redis dictionary doesn't seem to be ok. https://github.com/yandex/ClickHouse/commit/22fc9a96b30721869724a0ce630ded701f5d3ede. | 2019-03-21T18:12:13 | 2019-03-21T18:12:21 | {} | MEMBER |
ClickHouse | ClickHouse | 475,514,566 | 4,388 | fandyushin | I found in logs that server segfsaults. I will try to find the cause. But I still cant reproduce it locally. | 2019-03-22T07:01:34 | 2019-03-22T07:01:34 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,688,837 | 4,771 | alexey-milovidov | Missing full description for changelog. It is backward incompatible change. | 2019-03-22T16:32:07 | 2019-03-22T16:32:07 | {} | MEMBER |
ClickHouse | ClickHouse | 475,250,167 | 4,528 | igor-sh8 | Ok. Thanks for the explanation. | 2019-03-21T14:25:17 | 2019-03-21T14:25:17 | {} | NONE |
ClickHouse | ClickHouse | 475,310,340 | 4,504 | proller | https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=921685 | 2019-03-21T16:45:46 | 2019-03-21T16:45:46 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,610,208 | 4,731 | Slind14 | Doesn't this load all the columns which we do not need? | 2019-03-22T12:53:46 | 2019-03-22T12:53:46 | {} | NONE |
ClickHouse | ClickHouse | 475,833,285 | 4,743 | alexey-milovidov | Ok.
PS. Performance test: unrelated, it was broken in https://github.com/yandex/ClickHouse/commit/56f7d21e8429e6fa0f25e96de62fe1a44adfa727 | 2019-03-23T02:55:05 | 2019-03-23T02:55:05 | {} | MEMBER |
ClickHouse | ClickHouse | 476,109,017 | 4,785 | blinkov | High-level roadmap lives here and is updated several times a year: https://clickhouse.yandex/docs/en/roadmap/
If you prefer that talk format, you can regularly visit our offline events (which is complicated since they are scattered all over the globe) or at least "Watch" that [repo with slides](https://github.com/... | 2019-03-25T09:04:07 | 2019-03-25T09:04:07 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 476,173,653 | 4,746 | KochetovNicolai | I'm not sure, but probably it's enough to change only .sql file. However, it's not a good idea to change metadata and `columns.txt` manually. Better to use proper scheme for create query, or recreate table on one replica to make them same. | 2019-03-25T12:25:10 | 2019-03-25T12:25:10 | {} | MEMBER |
ClickHouse | ClickHouse | 475,313,317 | 4,504 | proller | Same error from new apt -
```W: GPG error: http://repo.yandex.ru/clickhouse/deb/stable main/ Release: Detached signature file '/var/lib/apt/lists/partial/repo.yandex.ru_clickhouse_deb_stable_main_Release.gpg' is in unsupported binary format
E: The repository 'http://repo.yandex.ru/clickhouse/deb/stable main/ Release... | 2019-03-21T16:53:07 | 2019-03-21T16:53:16 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,428,769 | 4,631 | simPod | There was no issue on my side for a while but it appeared just now. Meanwhile I tried upgrading to 19.4.1.3 where librdkafka is at v1 RC8 but it's happening there too. For now I have no clue what the cause might be. | 2019-03-21T22:35:08 | 2019-03-21T22:35:08 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,552,785 | 4,631 | Junus | I got same error `void DB::StorageKafka::streamThread(): std::exception. Code: 1001, type: cppkafka::HandleException, e.what() = Local: Invalid argument or configuration`. Drop Kakfa engine table and recreate help. ClickHouse server version 19.3.7 | 2019-03-22T09:36:12 | 2019-03-22T09:36:12 | {} | NONE |
ClickHouse | ClickHouse | 475,611,924 | 4,731 | 4ertus2 | As we checked current algorithm works well and there's no difference between JOINS with multiple_joins_omit_unused_columns set and not set. Current multiple JOIN extract all columns at AST section in expectation that they would be removed at later processing stages. multiple_joins_omit_unused_columns forced to remove t... | 2019-03-22T12:59:51 | 2019-03-22T12:59:51 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,698,508 | 4,738 | KochetovNicolai | It't usually the number of physical CPU cores.
Also, note that in case of crash data in buffer table which wasn't flushed to ordinary will be lost. | 2019-03-22T16:59:04 | 2019-03-22T16:59:04 | {} | MEMBER |
ClickHouse | ClickHouse | 475,810,580 | 4,743 | azat | @alexey-milovidov I've squashed your commit (with typos) into the original (thanks for catching!) | 2019-03-22T23:05:45 | 2019-03-22T23:05:45 | {} | MEMBER |
ClickHouse | ClickHouse | 476,159,683 | 4,070 | Crazylearner30 | Is there any option to migrate table from MySql/MariaDB to Clickhouse in real time with some 10 to 15 sec of difference ?
Thanks | 2019-03-25T11:38:28 | 2019-03-25T11:38:28 | {} | NONE |
ClickHouse | ClickHouse | 476,176,394 | 4,788 | den-crane | Not a bug. Default JDBC socket timeout time is 30sec.
https://github.com/yandex/clickhouse-jdbc/issues/159 | 2019-03-25T12:33:14 | 2019-03-25T12:33:14 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,262,683 | 4,736 | aegorov05 | > > I checked result after 10 second and more time. Count is not changed.
>
> Somebody was reporting some issues with flushing by timeout. Need to check the code. Please ensure that after you fill last block to the required block size whole data appears.
I used default kafka-consumer-groups for check current offs... | 2019-03-21T14:54:53 | 2019-03-21T14:55:14 | {} | NONE |
ClickHouse | ClickHouse | 475,384,681 | 2,218 | blinkov | HouseOps is listed on a 3rd party GUI page: https://clickhouse.yandex/docs/en/interfaces/third-party/gui/ | 2019-03-21T20:12:44 | 2019-03-21T20:12:44 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,508,336 | 4,047 | madm1keru | I see the same flood in logs, even at testing 19.4.2.4.
`
2019.03.22 08:43:01.515845 [ 5 ] {} <Error> SrcData.TTAdmLog (StorageReplicatedMergeTree): auto DB::StorageReplicatedMergeTree::queueTask()::(anonymous class)::operator()(DB::StorageReplicatedMergeTree::LogEntryPtr &) const: Poco::Exception. Code: 1000, e.co... | 2019-03-22T06:26:42 | 2019-03-22T06:26:42 | {} | NONE |
ClickHouse | ClickHouse | 475,566,540 | 4,754 | alesapin | Seems like oom kills clickhouse. | 2019-03-22T10:21:24 | 2019-03-22T10:21:24 | {} | MEMBER |
ClickHouse | ClickHouse | 475,566,518 | 4,731 | Slind14 | **stable**
- normal query **2469ms**
- with subselect **300ms**
**cross branch**
`set multiple_joins_omit_unused_columns = 1`
- normal query **2479ms**
- with subselect **300ms**
`set multiple_joins_omit_unused_columns = 0`
- normal query **2476ms**
- with subselect **300ms**
Disclaimer: I ran the... | 2019-03-22T10:21:19 | 2019-03-22T10:22:37 | {} | NONE |
ClickHouse | ClickHouse | 475,572,173 | 4,757 | 4ertus2 | Do not solve the issue :( | 2019-03-22T10:41:05 | 2019-03-22T10:41:05 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,614,683 | 4,731 | Slind14 | ok, thanks | 2019-03-22T13:09:38 | 2019-03-22T13:09:38 | {} | NONE |
ClickHouse | ClickHouse | 475,967,476 | 4,784 | alexey-milovidov | It can be solved by wrapping https://github.com/yandex/ClickHouse/blob/master/dbms/src/Common/Allocator.h#L5 into `#ifndef ALLOCATOR_ASLR` and explicitly defining ALLOCATOR_ASLR to 0 in your code that use ClickHouse headers. | 2019-03-24T15:03:09 | 2019-03-24T15:03:09 | {} | MEMBER |
ClickHouse | ClickHouse | 476,002,302 | 3,764 | buyology | Would be great with a patch for this. @shangshujie365 do you plan on submitting yours? | 2019-03-24T21:31:32 | 2019-03-24T21:31:32 | {} | NONE |
ClickHouse | ClickHouse | 476,028,044 | 3,173 | alexey-milovidov | Fixed in master. | 2019-03-25T01:52:36 | 2019-03-25T01:52:36 | {} | MEMBER |
ClickHouse | ClickHouse | 476,035,870 | 4,778 | zhang2014 | LGTM | 2019-03-25T02:43:33 | 2019-03-25T02:43:33 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 476,266,341 | 4,774 | Gladdy | > @KochetovNicolai briefly reviewed and said that the idea is all right. I will look further in a moment.
@alexey-milovidov Thanks very much! If you have any further feedback/issues I might have overlooked that need to be addressed before any any possibility of merging, please let me know before I put in some more w... | 2019-03-25T16:07:49 | 2019-03-25T16:07:49 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,519,180 | 4,752 | set-daemon | @proller the g++ 8.3.0 works，thx | 2019-03-22T07:24:53 | 2019-03-22T07:24:53 | {} | NONE |
ClickHouse | ClickHouse | 475,527,952 | 4,761 | ghost | It could be much slow if we merge on disk. | 2019-03-22T08:05:57 | 2019-03-22T08:05:57 | {} | NONE |
ClickHouse | ClickHouse | 475,571,445 | 4,731 | 4ertus2 | Quite strange. Could you get me your schema (maybe obfuscated) and queries to reproduce?
There's another thing. If you use WHERE clause in you subselect for columns - it's not the same that multiple JOINs do. To get the same result you need push down predicate. It's not so stable yet. 'set enable_optimize_predicate... | 2019-03-22T10:38:25 | 2019-03-22T10:49:39 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,588,631 | 4,731 | Slind14 | schema https://gist.github.com/Slind14/8f36b6fa74fd982b01f751cc2e2fd199
query https://gist.github.com/Slind14/e2f264bbe1743a6084b8e32c0e26db4e
query subselect https://gist.github.com/Slind14/6b8fdf55b3fccf0e4a52d73537f0cba0
Does this help?
I could also give you access to the test-server if a simple NDA is fine ... | 2019-03-22T11:39:13 | 2019-03-22T11:39:13 | {} | NONE |
ClickHouse | ClickHouse | 475,591,089 | 4,731 | 4ertus2 | No need, I think. If you remove 'WHERE (toDate(date) >= '2019-03-14') AND (toDate(date) <= '2019-03-20')' from the last query with subselect you should get the same 2.5s.
Could we check it? Leave only the last WHERE section (after last JOIN) in your subselect variant.
Also you may be interested to try the query wit... | 2019-03-22T11:48:19 | 2019-03-22T11:48:19 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,833,182 | 4,741 | olegkv | I guess even if the test checks upper bound only, it can still give false positive results, if order of execution is favorable (smaller upper_bound first, then merge with larger upper_bound).
| 2019-03-23T02:53:53 | 2019-03-23T02:53:53 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 476,033,273 | 4,761 | ghost | Yes, I did check memory/buffer part before I post this issue. But I wonder if buffer engine works as I expect: merging in memory and writing merged block to disk. | 2019-03-25T02:26:38 | 2019-03-25T02:26:38 | {} | NONE |
ClickHouse | ClickHouse | 475,648,995 | 4,765 | alexey-milovidov | Ok. You can be sure that that support of this syntax won't be dropped in future. | 2019-03-22T14:46:59 | 2019-03-22T14:46:59 | {} | MEMBER |
ClickHouse | ClickHouse | 475,694,603 | 4,754 | KochetovNicolai | `[pid 29615] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x7f6857f7efd8} ---`
I think it's a segfault. There should be stacktrace in /var/log/clickhouse-server/clickhouse-server.log | 2019-03-22T16:48:16 | 2019-03-22T16:48:16 | {} | MEMBER |
ClickHouse | ClickHouse | 475,294,288 | 4,739 | KochetovNicolai | (1) Because data for Set engine is also was written to file, but for Memory only to memory (so this table will not have data after restart). Also, Set is a hash table inside, and it takes time to build it. Memory is just a list of columns.
(2) Because in some cases (for complex keys) hash table stores SipHash(row) in... | 2019-03-21T16:06:36 | 2019-03-21T16:06:36 | {} | MEMBER |
ClickHouse | ClickHouse | 475,355,833 | 1,252 | victor-perov | Hello, for now, I found in addition these possible ways:
- `ALTER TABLE [db.]table DELETE WHERE filter_expr`, so you can do `ALTER TABLE tbl DELETE WHERE 1 = 1`
- `TRUNCATE TABLE tbl`
Though, @alexey-milovidov I found a situation, when insert right after `TRUNCATE TABLE ...` provides sometimes strange results, i... | 2019-03-21T18:43:01 | 2019-03-21T18:43:01 | {} | NONE |
ClickHouse | ClickHouse | 475,531,131 | 4,754 | tkroman | Which part? Even on trace there are no messages between the fat insert logging and the “unclean restart” message. | 2019-03-22T08:19:51 | 2019-03-22T08:19:51 | {} | NONE |
ClickHouse | ClickHouse | 475,556,802 | 4,762 | filimonov | Duplicate of #1861
PR #3598 fixes that (should work properly in versions > 19.1)
Generally, when you do some DDL on non-leader replica it forwards the request to a leader, and during that forwarding "default" passwordless user was used. | 2019-03-22T09:49:05 | 2019-03-22T09:53:04 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,562,724 | 4,731 | 4ertus2 | Yup,
You need to 'set multiple_joins_omit_unused_columns = 1' and run your queries. Then rerun them with 'set multiple_joins_omit_unused_columns = 0'. So we can check if the option is working. We need times for
1. queries without option enabled
2. queries with option enabled
3. queries with subselect that remove ... | 2019-03-22T10:08:42 | 2019-03-22T10:08:42 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,874,079 | 4,779 | alexey-milovidov | But we cannot afford dependency on system library. | 2019-03-23T14:25:00 | 2019-03-23T14:25:00 | {} | MEMBER |
ClickHouse | ClickHouse | 476,131,116 | 4,736 | aegorov05 | @abyss7 Is there any estimate/milestone when this bug is going to be fixed? | 2019-03-25T10:12:47 | 2019-03-25T10:12:47 | {} | NONE |
ClickHouse | ClickHouse | 475,586,102 | 4,754 | tkroman | @alesapin There are no related messages in dmesg, is there any other way to check (it's running in docker)? Also, given that the batch size is just 300 rows, how is it possible to trigger an OOM? I also have external group by & external sort enabled with 5GB as threshold. Total RAM available to CH is 13GB. | 2019-03-22T11:30:14 | 2019-03-22T11:30:14 | {} | NONE |
ClickHouse | ClickHouse | 475,598,627 | 4,731 | 4ertus2 | For now you'd better use subselects. | 2019-03-22T12:14:46 | 2019-03-22T12:14:46 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,609,637 | 4,731 | 4ertus2 | There's no need to detect columns. You may use * or table_name.* in subselects.
You also could make a view with pre-filtration and select from it.
| 2019-03-22T12:51:48 | 2019-03-22T12:51:48 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,630,455 | 4,761 | den-crane | Did you check https://clickhouse.yandex/docs/en/operations/table_engines/buffer/ it seems pretty same. | 2019-03-22T13:57:11 | 2019-03-22T13:57:43 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,765,310 | 4,750 | alexey-milovidov | Build was broken in this PR. | 2019-03-22T20:13:35 | 2019-03-22T20:13:35 | {} | MEMBER |
ClickHouse | ClickHouse | 476,154,758 | 4,789 | proller | Also it maybe already fixed in master by https://github.com/yandex/ClickHouse/commit/18e3dd137c0e67175f6878e413821625a547ecb6 | 2019-03-25T11:22:23 | 2019-03-25T11:22:23 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 476,238,365 | 4,791 | yu45020 | @den-crane I try to set that variable to either 1 byte, 1GB, or 100GB, but none of them work. | 2019-03-25T15:06:37 | 2019-03-25T15:06:37 | {} | NONE |
ClickHouse | ClickHouse | 475,502,781 | 4,755 | zhang2014 | LGTM | 2019-03-22T05:52:38 | 2019-03-22T05:52:38 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,599,769 | 4,731 | Slind14 | I just checked, this seems to be only the case when multiple joins are at work. With one join doing the subselect is even more expensive. | 2019-03-22T12:18:45 | 2019-03-22T12:18:45 | {} | NONE |
ClickHouse | ClickHouse | 475,677,362 | 4,768 | yu45020 | I have no ideas on database structures, but thank you very much !
| 2019-03-22T16:01:07 | 2019-03-22T16:01:07 | {} | NONE |
ClickHouse | ClickHouse | 475,955,687 | 4,537 | Crazylearner30 | Thanks a lot | 2019-03-24T12:49:29 | 2019-03-24T12:49:29 | {} | NONE |
ClickHouse | ClickHouse | 475,303,066 | 4,666 | OrangeFlag | @alexey-milovidov We have a lot of drop operation of buffer tables, because we have custom batch replication system, that gives us a guarantee of data consistency. | 2019-03-21T16:28:01 | 2019-03-21T16:33:59 | {} | NONE |
ClickHouse | ClickHouse | 475,419,424 | 4,731 | Slind14 | I'm not seeing any query time difference. I pulled your cross branch, ran the release script and installed `clickhouse-common-static_19.5.1_amd64` as well as `clickhouse-server_19.5.1_all.deb``, is that the way to do it?
| 2019-03-21T22:00:07 | 2019-03-21T22:01:05 | {} | NONE |
ClickHouse | ClickHouse | 475,529,239 | 4,754 | alesapin | Can you provide server log? | 2019-03-22T08:11:52 | 2019-03-22T08:11:52 | {} | MEMBER |
ClickHouse | ClickHouse | 475,562,757 | 4,762 | inolddays | Many Thanks! Alexey | 2019-03-22T10:08:49 | 2019-03-22T10:08:49 | {} | NONE |
ClickHouse | ClickHouse | 475,593,823 | 4,731 | Slind14 | > No need, I think. If you remove 'WHERE (toDate(date) >= '2019-03-14') AND (toDate(date) <= '2019-03-20')' from the last query with subselect you should get the same 2.5s. Could we check it? Leave only the last WHERE section (after last JOIN) in your subselect variant.
You are right, without the `where` in the subs... | 2019-03-22T11:58:01 | 2019-03-22T11:58:16 | {} | NONE |
ClickHouse | ClickHouse | 475,602,989 | 4,731 | Slind14 | @4ertus2 is there any other way? The query is built dynamically and the only I way see to achieve that on my end would be to parse the entire query, somehow detect which columns it requires and to add these to the subselect. | 2019-03-22T12:29:23 | 2019-03-22T12:29:23 | {} | NONE |
ClickHouse | ClickHouse | 475,663,387 | 4,768 | den-crane | >I have no issues if I run either query in sqlite.
sqlite is OLTP database and able to use NestedLoop (and index access)
CH is OLAP database and always uses HashJoin (and has no index access)
So CH always puts the right table into memory.
>Is it possible to internally switch the right/left tables
No. CH alw... | 2019-03-22T15:24:36 | 2019-03-22T15:28:15 | {
"+1": 3
} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,851,207 | 4,778 | blinkov | cc @zhang2014 @sundy-li | 2019-03-23T08:28:12 | 2019-03-23T08:28:12 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,287,720 | 4,752 | proller | Just tried with gcc7 version 7.4 from `sudo add-apt-repository ppa:ubuntu-toolchain-r/test` and here no build problems.
| 2019-03-21T15:51:47 | 2019-03-21T15:51:47 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,299,148 | 4,631 | kmatt | Any suggestions on how to diagnose this issue, or where the problem may lie (v19.3.5)?
In this example consumer tables are dropped and recreated at 30 minutes past every hour, which brings all nodes back ... | 2019-03-21T16:18:24 | 2019-03-21T16:20:03 | {} | NONE |
ClickHouse | ClickHouse | 475,595,350 | 4,731 | 4ertus2 | > Would using PREWHERE instead solve this?
No, PREWERE needs special push down itself.
> set enable_optimize_predicate_expression = 1 results in 2500ms as well
I'll remove it. Hypothesis, that it could help is wrong. | 2019-03-22T12:03:32 | 2019-03-22T12:04:17 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,609,183 | 4,766 | nvartolomei | https://github.com/yandex/ClickHouse/pull/1722 | 2019-03-22T12:50:20 | 2019-03-22T12:50:20 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,730,648 | 4,769 | KochetovNicolai | Well, it's expected behaviour for current implementation of `pointInPolygon` function. It works for points on the Cartesian plane. It's also ok for small polygons on sphere, but for sure won't fork for poles and polygons outside the -/+180 boundary. | 2019-03-22T18:25:42 | 2019-03-22T18:25:42 | {} | MEMBER |
ClickHouse | ClickHouse | 475,734,569 | 4,763 | nvartolomei | cc @proller :) | 2019-03-22T18:36:52 | 2019-03-22T18:36:52 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,874,212 | 4,741 | alexey-milovidov | Merged. I also has changed a test to force specific order of merging. | 2019-03-23T14:26:42 | 2019-03-23T14:26:42 | {} | MEMBER |
ClickHouse | ClickHouse | 475,874,343 | 4,774 | alexey-milovidov | @KochetovNicolai briefly reviewed and said that the idea is all right. I will look further in a moment. | 2019-03-23T14:28:29 | 2019-03-23T14:28:29 | {} | MEMBER |
ClickHouse | ClickHouse | 476,110,720 | 3,588 | Aricliang | version 19.4.0 ,when set <enable_optimize_predicate_expression>1</enable_optimize_predicate_expression>
localhost :) select * from ...
Cannot load data for command line suggestions: Code: 32, e.displayText() = DB::Exception: Attempt to read after eof: while receiving packet from 127.0.0.1:9000
Exception on c... | 2019-03-25T09:09:32 | 2019-03-25T09:09:32 | {} | NONE |
ClickHouse | ClickHouse | 476,112,420 | 4,786 | blinkov | It was about much more simple feature: allow to configure multiple folders to store data (that might reside on different kinds of disks or filesystems) and specify rules on which table part goes where. | 2019-03-25T09:15:02 | 2019-03-25T09:15:02 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,332,984 | 4,504 | proller | Should be fixed now.
| 2019-03-21T17:41:58 | 2019-03-21T17:41:58 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,345,644 | 4,757 | 4ertus2 | #4731 | 2019-03-21T18:15:26 | 2019-03-21T18:15:26 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,468,075 | 4,752 | set-daemon | > Just tried with gcc7 version 7.4 from `sudo add-apt-repository ppa:ubuntu-toolchain-r/test` and here no build problems.
does the latest version of gcc support all versions of Clickhouse? if so, i would install the latest gcc. | 2019-03-22T02:03:49 | 2019-03-22T02:03:49 | {} | NONE |
ClickHouse | ClickHouse | 475,736,160 | 4,772 | nvartolomei | Closes https://github.com/yandex/ClickHouse/issues/4766. | 2019-03-22T18:41:33 | 2019-03-22T18:41:33 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,783,269 | 4,754 | tkroman | Yes, I figured it's a segfault. As I mentioned before, there is nothing in the logs even on the trace level. | 2019-03-22T21:07:05 | 2019-03-22T21:07:05 | {} | NONE |
ClickHouse | ClickHouse | 475,992,843 | 4,724 | BHYCHIK | > Looks like a draft: no tests, the function implemented only for constant argument.
I have added support of non-constants arguments, tests and russian documentation. Could you review it once again, please? | 2019-03-24T19:44:52 | 2019-03-24T19:44:52 | {} | NONE |
ClickHouse | ClickHouse | 475,347,240 | 4,731 | 4ertus2 | Here is PR with option that may help. In fact, I still cannot reproduce the problem. So it would be great if you check it on your queries. | 2019-03-21T18:19:50 | 2019-03-21T18:19:50 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,594,642 | 4,731 | Slind14 | `set enable_optimize_predicate_expression = 1` results in 2500ms as well | 2019-03-22T12:01:08 | 2019-03-22T12:01:08 | {} | NONE |
ClickHouse | ClickHouse | 475,828,395 | 4,741 | alexey-milovidov | `merge` function can be tested without distributed queries. | 2019-03-23T01:35:51 | 2019-03-23T01:35:51 | {} | MEMBER |
ClickHouse | ClickHouse | 475,831,147 | 4,745 | alexey-milovidov | Server cannot use absolute path for security reasons.
Client can accept absolute path. | 2019-03-23T02:20:03 | 2019-03-23T02:20:03 | {
"+1": 1
} | MEMBER |
ClickHouse | ClickHouse | 475,832,415 | 4,741 | olegkv | -histogram function may be non deterministic, but its upper bound is deterministic and this is where the bug was.
-I've changed the test to check upper-bound only, I don't know how to test merge without running distributed query.. | 2019-03-23T02:41:26 | 2019-03-23T02:41:26 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,967,627 | 4,784 | alexey-milovidov | You can send the required modifications in a PR. | 2019-03-24T15:04:46 | 2019-03-24T15:04:46 | {} | MEMBER |
ClickHouse | ClickHouse | 476,003,799 | 4,780 | danlark1 | Now I am more satisfied with the patch | 2019-03-24T21:49:38 | 2019-03-24T21:49:38 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 476,153,996 | 4,789 | proller | Try build with ```cmake -DGLIBC_COMPATIBILITY=0``` | 2019-03-25T11:20:08 | 2019-03-25T11:20:08 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,261,099 | 4,736 | filimonov | > @aegorov05 try to write (3000 * 65536 + 1) = 196608001 rows
Why so many? :) Any multiple of 65536 would be ok, so for example 100 requests, 32768 messages each. It would be 3276800 messages in the table which is 50 blocks of size 65536.
> I checked result after 10 second and more time. Count is not changed.
... | 2019-03-21T14:51:10 | 2019-03-21T14:51:27 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,558,433 | 1,861 | filimonov | PR #3598 fixes that. | 2019-03-22T09:54:29 | 2019-03-22T09:54:29 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,676,424 | 4,770 | slaunay | That was fast, thanks @blinkov! | 2019-03-22T15:58:34 | 2019-03-22T15:58:34 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 475,967,212 | 4,784 | alexey-milovidov | I understand the issue. It can be solved by inserting a padding variable `std::aligned_storage` but I think, we should not do it because it will increase the size of many objects, including PODArray. And there are many cases when sizeof PODArray is critical (e.g. aggregate function states). | 2019-03-24T15:00:15 | 2019-03-24T15:00:45 | {} | MEMBER |
ClickHouse | ClickHouse | 476,142,276 | 4,787 | blinkov | Distributed DDL feature has already been implemented pretty long time ago: https://clickhouse.yandex/docs/en/query_language/create/#distributed-ddl-queries-on-cluster-clause | 2019-03-25T10:44:57 | 2019-03-25T10:44:57 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 476,172,224 | 4,070 | blinkov | @Crazylearner30 https://github.com/Altinity/clickhouse-mysql-data-reader#mysql-migration-case-1---listen-for-new-data is supposed to do that. | 2019-03-25T12:20:42 | 2019-03-25T12:20:42 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 476,196,757 | 4,207 | andyyzh | > Is it possible to support 64bit integer?
64-bit integer is not supported for the time being using CRoaring's C language version.
The 64-bit version of CRoaring c++ has poor performance because it is packaged as an object. | 2019-03-25T13:29:14 | 2019-03-25T13:29:14 | {} | CONTRIBUTOR |
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