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ClickHouse® is a real-time analytics DBMS
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Azat Khuzhin a23bb79479 Fix parsing symbols from resources (for shared builds) 
In case of shared builds the symbol can be represented in multiple
shared objects, and so if one SO contains _end symbol firstly, then it
it's address can subtracted from the symbol from another SO, and this
give overflow.

Here is an example of such symbol:

    $ llvm-readelf -a programs/server/libclickhouse-server-libd.so | fgrep schemata_sql
       552: 000000000010b869     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_size
      1271: 000000000010b869     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_end
      3627: 000000000010b480     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_start
      5822: 000000000010b869     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_end
      5828: 000000000010b869     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_size
      5831: 000000000010b480     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_start

    $ llvm-readelf -W -a src/TableFunctions/libclickhouse_table_functionsd.* | fgrep schemata_sql
      1709: 00000000001fc5a1     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_end
      5107: 00000000001fc5a1     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_size
      6090: 00000000001fc1b8     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_start
     10975: 00000000001fc1b8     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_start
     10976: 00000000001fc5a1     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_end
     10977: 00000000001fc5a1     0 NOTYPE  GLOBAL DEFAULT    22 _binary_schemata_sql_size

To address this, add base address of the Elf into the resources to
compare with.

Follow-up for: #33134 (cc @alexey-milovidov)
2021-12-29 09:56:59 +03:00
.github Better jepsen workflow 2021-12-24 21:26:06 +03:00
base Enable query profiler 2021-12-24 12:25:27 +03:00
benchmark Add benchmark for DuckDB 2021-10-31 21:05:07 +03:00
cmake Fix ccache with ENABLE_CHECK_HEAVY_BUILDS (ccache 4.0 and 4.1 only affected) 2021-12-25 00:06:32 +03:00
contrib Merge pull request #32484 from Algunenano/libcxx13_take2 2021-12-25 10:14:12 +03:00
debian Merge pull request #32415 from ClickHouse/arm64_workers 2021-12-17 08:46:52 +03:00
docker Add retries to AST fuzzer 2021-12-28 16:12:51 +03:00
docs Update grant.md 2021-12-28 14:14:32 -04:00
programs Merge pull request #31442 from vdimir/cluster-discovery 2021-12-28 10:53:30 +03:00
src Fix parsing symbols from resources (for shared builds) 2021-12-29 09:56:59 +03:00
tests Merge pull request #33269 from kssenii/azure-tests-improve 2021-12-29 09:34:57 +03:00
utils Merge pull request #33198 from azat/tests-event_date_time-today 2021-12-28 20:34:33 +03:00
website Add benchmark results from Lorenzo 2021-12-28 16:49:41 +03:00
.clang-format Fixed wrong code around Memory Profiler 2020-03-03 03:24:44 +03:00
.clang-tidy Revert "Revert "Fix tidy"" 2021-09-06 12:16:52 +03:00
.editorconfig Changed tabs to spaces in editor configs and in style guide [#CLICKHOUSE-3]. 2017-04-01 11:35:09 +03:00
.gitattributes Cleanup .gitattributes 2021-12-11 21:27:36 +03:00
.gitignore fix style check 2021-09-21 10:28:33 +03:00
.gitmodules Use ClickHouse-Extras for the submodules 2021-12-23 09:19:10 +01:00
.potato.yml Fix yamllint issues 2021-02-20 23:25:21 +03:00
.pylintrc Add pylintrc config 2021-01-26 23:35:56 +03:00
.vimrc Changed tabs to spaces in editor configs and in style guide [#CLICKHOUSE-3]. 2017-04-01 11:35:09 +03:00
.yamllint Drop truthy.check-keys from yamllint (does not supported on CI) 2021-02-21 06:15:36 +03:00
AUTHORS Update AUTHORS 2021-09-22 11:38:03 +03:00
CHANGELOG.md Update CHANGELOG.md 2021-12-15 20:40:42 -04:00
CMakeLists.txt Fix shared hermetic builds on Arch linux 2021-12-24 23:43:12 +03:00
CODE_OF_CONDUCT.md Add minimal code of conduct #9676 2020-03-16 12:44:28 +03:00
CONTRIBUTING.md Mention ClickHouse CLA in CONTRIBUTING.md (#32697) 2021-12-14 03:47:19 +03:00
docker-compose.yml Change Docker org name 2021-09-20 01:52:21 +03:00
format_sources allow several <graphite> targets (#603) 2017-03-21 23:08:09 +04:00
LICENSE Sync copyrights 2021-10-04 09:16:18 +03:00
PreLoad.cmake Hermetic shared build 2021-12-20 16:59:42 +08:00
README.md Update README.md 2021-10-12 15:38:40 +03:00
release Add aarch64 deb package 2021-12-16 12:42:49 +01:00
SECURITY.md Update SECURITY.md 2021-11-25 00:59:52 +03:00
uncrustify.cfg Better .clang-format and uncrustify.cfg 2018-11-29 15:45:34 +03:00

README.md

ClickHouse — open source distributed column-oriented DBMS

ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports in real-time.

Useful Links

  • Official website has a quick high-level overview of ClickHouse on the main page.
  • Tutorial shows how to set up and query a small ClickHouse cluster.
  • Documentation provides more in-depth information.
  • YouTube channel has a lot of content about ClickHouse in video format.
  • Slack and Telegram allow chatting with ClickHouse users in real-time.
  • Blog contains various ClickHouse-related articles, as well as announcements and reports about events.
  • Code Browser with syntax highlight and navigation.
  • Contacts can help to get your questions answered if there are any.