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 | 546,954,870 | 7,480 | azat | >The code has some flaws
@alexey-milovidov can you write them down? | 2019-10-28T13:50:10 | 2019-10-28T13:50:10 | {} | MEMBER |
ClickHouse | ClickHouse | 547,706,395 | 7,529 | cailin-lai | Thanks @den-crane ! We actually faced the worst case, since the inconsistencies between ck and zk, new ingested data was accumulated in distribute table, the data was not visible until we executed recover steps. In the 2nd tries, we adjusted the data ingestion process that data skipped distribute table, wrote to data... | 2019-10-30T02:03:08 | 2019-10-30T02:03:08 | {} | NONE |
ClickHouse | ClickHouse | 547,816,151 | 7,520 | YiuRULE | I saw also a similar strange behavior who could be related to the following issue.
for the same database definition as the original pull-request, this request return the error `DB::Exception: Unknown identifier: a`.
`WITH a as key SELECT key as k1 FROM test GROUP BY key;`
However, if we do `WITH a as key SELEC... | 2019-10-30T09:39:36 | 2019-10-30T09:40:29 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,863,358 | 7,500 | akuzm | > @akuzm Could you please create an issue (or do a quick fix) for those that were found with fuzz test with UBSan?
https://github.com/ClickHouse/ClickHouse/issues/7540 | 2019-10-30T11:47:31 | 2019-10-30T11:47:31 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,005,248 | 7,405 | BayoNet | Поправил в пулле https://github.com/ClickHouse/ClickHouse/pull/7547 | 2019-10-30T16:51:53 | 2019-10-30T16:51:53 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,008,751 | 7,261 | filimonov | Bit better, but not very inspiring for now:
19.14.7.15: 165292 rows / sec
19.15.3.6: 53859 rows / sec
PR build: 67243 rows / sec
| 2019-10-30T16:58:48 | 2019-10-30T16:58:48 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,113,249 | 7,526 | alexey-milovidov | Ok. Let's do the next PR when CVE number will appear. | 2019-10-30T21:08:43 | 2019-10-30T21:08:43 | {} | MEMBER |
ClickHouse | ClickHouse | 548,176,773 | 7,537 | chijiajian | > Do you use official build?
yes | 2019-10-31T01:16:51 | 2019-10-31T01:16:51 | {} | NONE |
ClickHouse | ClickHouse | 546,958,318 | 7,493 | akuzm | arraySplit should help you. No docs yet, but see the test:
https://github.com/ClickHouse/ClickHouse/pull/7294/files#diff-506cf01cf46681f23ec64b661780ab7c | 2019-10-28T13:57:48 | 2019-10-28T13:57:48 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,093,981 | 7,355 | stavrolia | Could you please add docs? | 2019-10-28T18:51:44 | 2019-10-28T18:51:44 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,190,239 | 7,480 | azat | >Какое отношение отсутствие инициализации единичными битами имеет к IEEE? Есть какой-то стандарт, где такое прописано?
I couldn't think of anything better then this, and since IEEE is the name for the polynomial, `crc32ieee()` had been chosen.
*(I though of accepting the polynomial as an parameter, but right now ... | 2019-10-28T23:30:04 | 2019-10-28T23:30:04 | {} | MEMBER |
ClickHouse | ClickHouse | 547,439,667 | 7,516 | stavrolia | Hello!
> Hi, its my first time to use clickhouse, how can i set the default value and create a second index in create table sql ?
You can set default value when creating the table, the description with examples is [here](https://clickhouse.yandex/docs/en/query_language/create/#create-default-values) and all infor... | 2019-10-29T14:12:12 | 2019-10-29T14:12:12 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,464,090 | 7,154 | millb | Stress test (thread) fail isn't caused by my changes | 2019-10-29T14:59:46 | 2019-10-29T14:59:46 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,942,084 | 7,123 | millb | I can't detect the problem. Are you sure that it isn't solved in this way?
> The `system.part_log` table is created after the first inserting data to the `MergeTree` table. | 2019-10-30T14:46:42 | 2019-10-30T14:46:42 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,168,504 | 2,494 | filimonov | Similar #7336 #6741
Maybe covered (or not?) by #7331 | 2019-10-28T22:14:00 | 2019-10-28T22:14:00 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,725,350 | 7,522 | yingfeng | Although replicated engine could guarantee a block to be written exactly once, it's still different from the real `exactly once` semantic, which means, after a suitable configuration, the client could write data into tables without worrying about the duplication issues. `Doris` could guarantee it within a configurable ... | 2019-10-30T03:37:19 | 2019-10-30T03:37:55 | {} | NONE |
ClickHouse | ClickHouse | 547,927,684 | 7,544 | 4ertus2 | ```
2019.10.30 17:18:10.941902 [ 40 ] {962836ba-e1d2-4250-af5b-5b57980eb1ca} <Debug> executeQuery: (from [::ffff:127.0.0.1]:58634) SELECT * FROM (SELECT 1 AS a, 2 AS b, 4 AS c) AS foo FULL OUTER JOIN (SELECT 1 AS a, 2 AS b, 3 AS c) AS bar ON (foo.a = bar.b) AND (foo.b = bar.b)
2019.10.30 17:18:10.957367 [ 40 ] {96283... | 2019-10-30T14:19:53 | 2019-10-30T14:19:53 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,171,132 | 7,261 | josepowera | Ouch... I just hopped this was THE FIX. Our CH is lagging behind and cleaning LAGs during offpeak- nights.
Would move to sharding help (would each shard subsribe only to 1 partition) or would first shard try to catch all partitions?
Has anyone tried performance of alternatives like:
-Kafka Connect JDBC with C... | 2019-10-31T00:47:22 | 2019-10-31T00:51:18 | {} | NONE |
ClickHouse | ClickHouse | 546,963,166 | 7,505 | apbodrov | Closing pull request, will make a new | 2019-10-28T14:09:06 | 2019-10-28T14:09:06 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 510,400,372 | 5,969 | kondratspb | Yes, sorry. I got log before upgarde. Here is the trace after upgrade:
```
2019.07.10 14:20:07.191449 [ 64 ] {} <Error> BaseDaemon: ########################################
2019.07.10 14:20:07.191687 [ 64 ] {} <Error> BaseDaemon: (version 19.9.3.31 (official build)) (from thread 43) Received signal Segmentation faul... | 2019-07-11T09:06:16 | 2019-10-28T20:16:36 | {} | NONE |
ClickHouse | ClickHouse | 547,271,787 | 7,005 | johncai0 | Thanks for the @SaltTan and @jpiper.
Strongly agree with @jpiper's point of view. | 2019-10-29T06:09:03 | 2019-10-29T06:09:03 | {} | NONE |
ClickHouse | ClickHouse | 547,965,580 | 7,546 | ernestp | on master:
% cmake .. -DCMAKE_CXX_COMPILER=`which g++-9` -DCMAKE_C_COMPILER=`which gcc-9`
-- The C compiler identification is GNU 9.2.0
-- The CXX compiler identification is GNU 9.2.0
-- Checking whether C compiler has -isysroot
-- Checking whether C compiler has -isysroot - yes
-- Checking whether C compiler ... | 2019-10-30T15:30:39 | 2019-10-30T15:30:39 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,124,500 | 7,509 | filimonov | Confirmed.
```
Code: 153. DB::Exception: Received from localhost:9000. DB::Exception: Division by zero. Stack trace:
0. 0x55e1ab472d20 StackTrace::StackTrace() /build/obj-x86_64-linux-gnu/../dbms/src/Common/StackTrace.cpp:228
1. 0x55e1ab472af5 DB::Exception::Exception(std::__cxx11::basic_string<char, std::char_... | 2019-10-28T20:11:13 | 2019-10-28T23:16:03 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,260,894 | 7,515 | filimonov | @yzzky could you please add a minimal example of schema? | 2019-10-29T05:20:59 | 2019-10-29T05:21:20 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,330,621 | 7,502 | chu1070y | Thanks | 2019-10-29T09:25:56 | 2019-10-29T09:25:56 | {} | NONE |
ClickHouse | ClickHouse | 547,428,980 | 7,522 | den-crane | https://clickhouse.yandex/docs/en/operations/table_engines/replication/
_Data blocks are deduplicated. For multiple writes of the same data block (data blocks of the same size containing the same rows in the same order), the block is only written once. The reason for this is in case of network failures when the clie... | 2019-10-29T13:50:03 | 2019-10-29T13:51:56 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,988,230 | 6,557 | MrBuddyCasino | The error originates in `convertFieldToType.cpp`, but the `Field.h` type does not provide a column name. Thought this might be a simple PR, but it isn't. | 2019-10-30T16:16:41 | 2019-10-30T16:16:41 | {} | NONE |
ClickHouse | ClickHouse | 546,944,883 | 7,386 | alexey-milovidov | @akuzm Need to investigate tests. | 2019-10-28T13:26:48 | 2019-10-28T13:26:48 | {} | MEMBER |
ClickHouse | ClickHouse | 547,359,852 | 7,508 | amosbird | > BTW - interesting how does it compare now with SimpleAggregateFunction
tbh, I fail to see the correlation. | 2019-10-29T10:42:16 | 2019-10-29T10:42:16 | {} | COLLABORATOR |
ClickHouse | ClickHouse | 547,399,628 | 7,019 | silviucpp | @alexey-milovidov do you have a bit of time to clarify my question ? is this expected or it's something that needs to be fixed ? | 2019-10-29T12:39:26 | 2019-10-29T12:39:26 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,449,187 | 7,529 | den-crane | > Thanks @den-crane for your comment. The database operations were executed in the middle night to reduce the impacts from data usage requests, and the data ingestion was stopped for the alter candidate nodes. We'd try to increase the "replication_alter_columns_timeout" flag to see whether it's helpful, next time.
O... | 2019-10-29T14:31:17 | 2019-10-29T14:31:31 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,509,824 | 7,500 | alexey-milovidov | @akuzm Could you please create an issue (or do a quick fix) for those that were found with fuzz test with UBSan? | 2019-10-29T16:26:11 | 2019-10-29T16:26:11 | {} | MEMBER |
ClickHouse | ClickHouse | 547,949,731 | 7,546 | ernestp | Tried homebrew tap, build from master, build from stable | 2019-10-30T15:00:58 | 2019-10-30T15:00:58 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,031,982 | 7,540 | alexey-milovidov | In what query? | 2019-10-30T17:47:49 | 2019-10-30T17:47:49 | {} | MEMBER |
ClickHouse | ClickHouse | 548,121,137 | 7,328 | alexey-milovidov | Almost Ok.
But it's very easy to implement arrayCompact for any data type. I'll do it as an example. | 2019-10-30T21:30:48 | 2019-10-30T21:30:48 | {} | MEMBER |
ClickHouse | ClickHouse | 547,132,205 | 5,312 | abraithwaite | I believe we might be seeing this issue when restoring from backups.
Is there any plan to address it? Also, Google Translate is not working well for the workaround. Would someone mind translating it for us please? | 2019-10-28T20:30:01 | 2019-10-28T20:30:01 | {} | NONE |
ClickHouse | ClickHouse | 547,362,144 | 7,522 | yingfeng | It has some differences.
`Apache Doris` has the component named `GlobalTransactionMgr` to guarantee the atomic for each `Stream Load`.
<img width="1015" alt="doris-stream-load" src="https://user-images.githubusercontent.com/7248/67760391-3266d700-fa7c-11e9-9d74-745c2ea14a73.png">
Storing insert_id into `Zookeeper... | 2019-10-29T10:48:30 | 2019-10-29T10:48:30 | {} | NONE |
ClickHouse | ClickHouse | 547,432,856 | 7,371 | akuzm | backport conflict in 19.15 | 2019-10-29T13:58:15 | 2019-10-29T13:58:15 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,024,297 | 7,546 | ernestp | @alexey-milovidov Yes I want to create pull request. I understand that some of my changes is more hack than fix, that's why I said I need more time. I don't know how it all will work on all other compilers so pull request will likely be iterative. Also some changes is not reflected in patch as I changed generated files... | 2019-10-30T17:31:26 | 2019-10-30T17:33:21 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,161,142 | 5,312 | abraithwaite | Good to know! Thanks for sharing! | 2019-10-28T21:50:46 | 2019-10-28T21:50:46 | {} | NONE |
ClickHouse | ClickHouse | 547,161,703 | 1,460 | filimonov | Implemented in 19.15 | 2019-10-28T21:52:33 | 2019-10-28T21:52:33 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,355,945 | 7,522 | akuzm | A related issue -- using the user-supplied query_id as a deduplication key for inserts: https://github.com/ClickHouse/ClickHouse/issues/7461 | 2019-10-29T10:31:46 | 2019-10-29T10:31:46 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,718,536 | 7,495 | yurriy | Да, конвертация в типы MySQL не дописана, и является основной запланированной доработкой MySQL протокола. Ожидаемый срок: 2 недели. | 2019-10-30T03:01:30 | 2019-10-30T03:01:30 | {
"heart": 2
} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,008,347 | 7,546 | ernestp | Compiled, required few little changes in makefiles and code.
Need time to review and test before pull request
[catalina_patch.txt](https://github.com/ClickHouse/ClickHouse/files/3790215/catalina_patch.txt)
. | 2019-10-30T16:58:02 | 2019-10-30T16:58:02 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,117,196 | 7,433 | alexey-milovidov | Need a test. | 2019-10-30T21:20:16 | 2019-10-30T21:20:16 | {} | MEMBER |
ClickHouse | ClickHouse | 548,119,832 | 7,380 | alexey-milovidov | Ok.
@hczhcz Could you please also commit these performance tests to `tests/performance`? | 2019-10-30T21:27:32 | 2019-10-30T21:27:32 | {} | MEMBER |
ClickHouse | ClickHouse | 547,159,816 | 972 | filimonov | @vas-and-tor your issue sounds quite different from original one. Please open new issue if it is still actual.
@imvs please open new issue if you still need some help with that.
Closing | 2019-10-28T21:46:28 | 2019-10-28T21:51:05 | {
"-1": 1
} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,563,531 | 7,005 | SaltTan | Another test case
```
:) create table test (a Int8) Engine=MergeTree() order by tuple()
CREATE TABLE test
(
`a` Int8
)
ENGINE = MergeTree()
ORDER BY tuple()
Ok.
0 rows in set. Elapsed: 0.117 sec.
:) detach table test
DETACH TABLE test
Ok.
0 rows in set. Elapsed: 0.001 sec.
:) create t... | 2019-10-29T18:22:33 | 2019-10-29T18:22:33 | {
"+1": 1
} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,568,428 | 7,522 | nvartolomei | One important thing to note: de duplication happens on shard level. | 2019-10-29T18:34:09 | 2019-10-29T18:34:09 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,714,499 | 7,536 | janplus | @blinkov @alexey-milovidov | 2019-10-30T02:42:24 | 2019-10-30T02:42:24 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,946,409 | 7,541 | alesapin | Fixed in pr 7545. | 2019-10-30T14:54:44 | 2019-10-30T14:54:44 | {} | MEMBER |
ClickHouse | ClickHouse | 547,954,743 | 7,546 | akuzm | `ClickHouse 19.5.3.1 revision 54417` is very old, what does it say if you build the current master?
Please also show `git status` output. Current master should build OK, we added a Mac OS build to the CI recently.
@abyss7 FYI | 2019-10-30T15:10:10 | 2019-10-30T15:10:10 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,023,016 | 7,123 | alexey-milovidov | @millb Thank you for the investigation! Can we add integration test that will check that the part_log is created? | 2019-10-30T17:28:46 | 2019-10-30T17:28:46 | {} | MEMBER |
ClickHouse | ClickHouse | 547,129,409 | 7,382 | filimonov | Closing: duplicate, workaround exists. | 2019-10-28T20:23:13 | 2019-10-28T20:23:13 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,020,970 | 7,295 | alexey-milovidov | Changes looks Ok. | 2019-10-30T17:24:36 | 2019-10-30T17:24:36 | {} | MEMBER |
ClickHouse | ClickHouse | 548,152,590 | 7,537 | filimonov | Do you use official build? | 2019-10-30T23:19:04 | 2019-10-30T23:20:28 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,336,996 | 7,415 | excitoon | I got:
```
select count() from test2;
SELECT count()
FROM test2
┌───count()─┐
│ 199614720 │
└───────────┘
``` | 2019-10-29T09:42:14 | 2019-10-29T09:42:14 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,422,261 | 7,307 | akuzm | Let's merge the test first, so that we can see the performance improvement. | 2019-10-29T13:35:18 | 2019-10-29T13:35:18 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,436,177 | 7,183 | akuzm | backport conflict in 19.15 | 2019-10-29T14:04:58 | 2019-10-29T14:04:58 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,601,676 | 7,529 | den-crane | BTW,
>Well, the table would be broken for data inserts.
>We've to execute move data, drop & recreate table and
>attach data steps to recover the table!
`Alter` should work despite the timeout. At the worst case scenario you able to fix using detach table / attach table. | 2019-10-29T19:55:51 | 2019-10-29T19:55:51 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 546,945,914 | 7,501 | alexey-milovidov | Ok. Could you please also change the formatter to format single element tuples in a new way? | 2019-10-28T13:29:22 | 2019-10-28T13:29:22 | {} | MEMBER |
ClickHouse | ClickHouse | 547,164,420 | 1,467 | filimonov | > ```
> ) ENGINE=MergeTree(date, (msno, date), 8192)
> ```
Looks like it was Engine=Log table (according to stacktrace) | 2019-10-28T22:01:28 | 2019-10-28T22:01:28 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,211,055 | 7,169 | den-crane | closing this. I will make several smaller pr | 2019-10-29T01:04:45 | 2019-10-29T01:04:45 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,267,374 | 6,260 | filimonov | Oomkiller most probably. Please check `dmesg` | 2019-10-29T05:50:31 | 2019-10-29T05:50:31 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,617,943 | 7,508 | filimonov | SimpleAggregationFunction were introduced due to the big overhead of states processing of usual AggregationFunction. I'm wondering if were is a sense of using SimpleAggregationFunction after your change. | 2019-10-29T20:36:44 | 2019-10-29T20:36:44 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,969,980 | 7,546 | ernestp | Seems found workaround, if successful will create pull request. | 2019-10-30T15:39:12 | 2019-10-30T15:39:12 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,119,053 | 7,386 | alexey-milovidov | @akuzm Tests have failed. | 2019-10-30T21:25:27 | 2019-10-30T21:25:27 | {} | MEMBER |
ClickHouse | ClickHouse | 547,132,655 | 7,306 | filimonov | Can you please provide full example (i.e. minimal table create statement + some failing alter)? | 2019-10-28T20:31:11 | 2019-10-28T20:31:11 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,152,679 | 1,867 | filimonov | fixed by `enable_optimize_predicate_expression` (enabled by default since 19.5)
```
create table issue1867 ( id UInt64, val String, d Date) Engine=MergeTree() ORDER BY id PARTITION BY toYYYYMM(d);
set force_index_by_date=1;
create view issue1867view as select * from issue1867;
select count() from issue1867view whe... | 2019-10-28T21:24:55 | 2019-10-28T21:24:55 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,623,929 | 1,761 | SaltTan | Deleting a dictionary file works in 19.13 | 2019-10-29T20:51:55 | 2019-10-29T20:51:55 | {
"+1": 1
} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,014,367 | 7,546 | alexey-milovidov | @ernestp The patch is Ok. Do you want to create a pull request?
PS. Just a few points:
- you can remove unused function completely instead of commenting it out;
- the version of AppleClang is not checked (but I don't know what version we need, so it's ok to leave it as is). | 2019-10-30T17:10:27 | 2019-10-30T17:10:27 | {} | MEMBER |
ClickHouse | ClickHouse | 546,955,105 | 7,480 | alexey-milovidov | Copy-paste from private TG channel. @akuzm will address all the concerns.
Alexey Milovidov, [28.10.19 16:37]
@akuzm
> with starting value 0xffffffff, so introduce another crc32
implementation - CRC32IEEE that has starting value - 0
А чем мотивировано, что функция должна так называться? Какое отношение отсут... | 2019-10-28T13:50:41 | 2019-10-28T13:51:54 | {} | MEMBER |
ClickHouse | ClickHouse | 547,169,038 | 2,184 | filimonov | Closing in advance to #6104 | 2019-10-28T22:15:50 | 2019-10-28T22:15:50 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,176,520 | 6,357 | filimonov | AFAIK, no progress for now, issue is in backlog. The story is huge, some other big things need to be finished before taking that. | 2019-10-28T22:40:19 | 2019-10-28T22:40:19 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,193,057 | 7,502 | chu1070y | Is there any way to increase a number of working threads? | 2019-10-28T23:42:17 | 2019-10-28T23:42:17 | {} | NONE |
ClickHouse | ClickHouse | 547,260,310 | 4,035 | filimonov | https://github.com/ClickHouse/ClickHouse/blob/a62866918fc333338bc7ac624db1681761fc5029/dbms/src/Storages/MergeTree/MergeTreeDataSelectExecutor.cpp#L450
@fancyqlx i think if you remove the filter expression the sample will became non-determenistic. To check that / say more - you can prepare pull request with that cha... | 2019-10-29T05:18:03 | 2019-10-29T05:18:03 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,283,714 | 7,497 | amosbird | Actually we don't need that alias at all, as any references to the original predicate alias (if any) are already dereferenced.
```
ANALYZE SELECT a
FROM numbers(10)
WHERE (1 = 1) AND (2 = 2) AS a
┌─explain────────────────────────────────────────────────┐
│ SELECT (1 = 1) AND (2 = 2) AS a
FROM numbers(10)
WH... | 2019-10-29T06:57:59 | 2019-10-29T06:57:59 | {} | COLLABORATOR |
ClickHouse | ClickHouse | 547,406,106 | 7,402 | Enmk | > It does not respect `external_table_functions_use_nulls` setting.
#7506 to the rescue! | 2019-10-29T12:57:32 | 2019-10-29T12:57:32 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,432,167 | 7,384 | akuzm | backport conflict in 19.15 | 2019-10-29T13:56:55 | 2019-10-29T13:56:55 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,626,460 | 971 | grmorozov | Any updates on this issue?
I got the same error in a bit different scenario:
```
create table alias_test (date Date, source_id UInt32, source alias source_id) Engine = MergeTree() PARTITION BY toYYYYMM(date) ORDER BY (date, source_id)
insert into alias_test (date, source_id) values ('2019-10-29', 2000050001)
`... | 2019-10-29T20:58:27 | 2019-10-29T20:58:27 | {} | NONE |
ClickHouse | ClickHouse | 547,840,006 | 6,877 | gongled | Unfortunately, we met the same error as @volfco described before in the production environment during on execution of `ALTER` query. Our ClickHouse cluster (version 19.13.2.19) contains two nodes and one replicated shard.
Please, have a look at the following log below (sensitive data is obscured):
```
2019.10.29... | 2019-10-30T10:43:32 | 2019-10-30T10:47:29 | {} | NONE |
ClickHouse | ClickHouse | 547,979,184 | 6,557 | MrBuddyCasino | I just wanted to open a similar ticket. We have a huge number of columns, and inspecting a failed INSERT is like looking for a needle in a haystack without the column name. | 2019-10-30T15:58:24 | 2019-10-30T15:58:24 | {} | NONE |
ClickHouse | ClickHouse | 546,947,533 | 7,491 | alexey-milovidov | We should add integration test with MS SQL Server if the license permits:
https://hub.docker.com/_/microsoft-mssql-server | 2019-10-28T13:33:20 | 2019-10-28T13:33:20 | {} | MEMBER |
ClickHouse | ClickHouse | 546,948,017 | 7,491 | alexey-milovidov | But first please add integration test of ClickHouse connection to ClickHouse through its own ODBC driver. | 2019-10-28T13:34:29 | 2019-10-28T13:34:29 | {} | MEMBER |
ClickHouse | ClickHouse | 547,182,261 | 2,667 | filimonov | @develar thanks for the report. Raised to separate issue #7513. | 2019-10-28T22:59:42 | 2019-10-28T22:59:42 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,181,675 | 7,261 | josepowera | Has anyone benchmarked what difference does a #7475 make? | 2019-10-28T22:57:38 | 2019-10-29T03:42:20 | {} | NONE |
ClickHouse | ClickHouse | 547,432,129 | 7,529 | den-crane | It could be because of long-running selects which block alter.
Just increase a timeout `set replication_alter_columns_timeout = 6000;` or kill selects | 2019-10-29T13:56:51 | 2019-10-29T13:56:51 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,958,320 | 7,546 | ernestp | Thanks for reply @akuzm. I tried master first but it failed to configure with unclear error. With stable it got more far in configuration. Will try master one more time. | 2019-10-30T15:16:55 | 2019-10-30T15:16:55 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 548,041,659 | 7,536 | filimonov | You can just prepare a PR, it will be tested and reviewed. | 2019-10-30T18:06:17 | 2019-10-30T18:06:17 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 546,951,654 | 7,480 | alexey-milovidov | @akuzm The code has some flaws, it transforms to technical debt. | 2019-10-28T13:42:52 | 2019-10-28T13:42:52 | {} | MEMBER |
ClickHouse | ClickHouse | 547,172,113 | 7,508 | filimonov | Some tests failed.
BTW - interesting how does it compare now with SimpleAggregateFunction ( https://github.com/ClickHouse/ClickHouse/pull/4629 ) | 2019-10-28T22:26:26 | 2019-10-28T22:26:26 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,310,697 | 7,513 | filimonov | It's actually about solving that TODO:
https://github.com/ClickHouse/ClickHouse/blob/5d8d1df80271c476ef329dfd0295746ef736b8c8/dbms/src/Storages/MergeTree/MergeTreeData.cpp#L1325-L1326 | 2019-10-29T08:31:07 | 2019-10-29T08:31:07 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,312,697 | 7,502 | filimonov | ```
set max_threads = 20;
```
Can also be adjusted for particular user profile, of globally in default profile in users.xml | 2019-10-29T08:37:13 | 2019-10-29T08:37:24 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,384,440 | 7,526 | alesapin | waiting for CVE number. | 2019-10-29T11:53:55 | 2019-10-29T11:53:55 | {} | MEMBER |
ClickHouse | ClickHouse | 547,441,087 | 7,510 | alexey-milovidov | Ok. But I don't see the tests from my prototype.
https://github.com/ClickHouse/ClickHouse/commit/a763a4a6c94bc0448cd35d174746f82e985338fa
They are strictly necessarily. | 2019-10-29T14:15:11 | 2019-10-29T14:15:11 | {} | MEMBER |
ClickHouse | ClickHouse | 547,442,820 | 7,529 | cailin-lai | Thanks @den-crane for your comment. The database operations were executed in the middle night to reduce the impacts from data usage requests, and the data ingestion was stopped for the alter candidate nodes. We'd try to increase the "replication_alter_columns_timeout" flag to see whether it's helpful, next time. | 2019-10-29T14:18:48 | 2019-10-29T14:18:48 | {} | NONE |
ClickHouse | ClickHouse | 547,624,530 | 4,068 | SaltTan | I cannot reproduce this on 19.15.3 | 2019-10-29T20:53:30 | 2019-10-29T20:53:30 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 547,783,619 | 4,470 | PhantomPhreak | Same problem with CH v19.15.3.6, openssl 1.1.1c-1, debian buster 10.0 | 2019-10-30T08:11:17 | 2019-10-30T08:11:17 | {} | NONE |
ClickHouse | ClickHouse | 547,966,614 | 7,546 | ernestp | master with clang:
% cmake .. -DCMAKE_CXX_COMPILER=`which clang++` -DCMAKE_C_COMPILER=`which clang`
-- The C compiler identification is AppleClang 11.0.0.11000033
-- The CXX compiler identification is AppleClang 11.0.0.11000033
-- Check for working C compiler: /usr/bin/clang
-- Check for working C compiler: /usr... | 2019-10-30T15:32:40 | 2019-10-30T15:32:40 | {} | CONTRIBUTOR |
ClickHouse | ClickHouse | 554,977,805 | 7,780 | akuzm | The main reason for the ugliness and slowness in the segmentation engine functions is that the ReadBuffer does not allow to read to the externally supplied memory. For now I am emulating this with memcpys, which show up in profiles as the major thing the segmentation engine does. We need some other API that allows to d... | 2019-11-18T11:34:38 | 2019-11-18T11:34:38 | {} | CONTRIBUTOR |
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