Commit Graph

6 Commits

Author SHA1 Message Date
Vitaly Baranov
0cccba62cf Support getHexUIntLowercase() with CityHash_v1_0_2::uint128 parameter. 2023-06-29 15:29:37 +02:00
Vitaly Baranov
f1f0daa654 Show halves of checksums in "system.parts", "system.projection_parts" and error messages in the correct order. 2023-06-25 17:17:56 +02:00
Mike Kot
9920a52c51 use std::lerp, constexpr hex.h 2023-03-07 22:50:17 +00:00
Robert Schulze
1a7727a254
Prefix overridden add_executable() command with "clickhouse_"
A simple HelloWorld program with zero includes except iostream triggers
a build of ca. 2000 source files. The reason is that ClickHouse's
top-level CMakeLists.txt overrides "add_executable()" to link all
binaries against "clickhouse_new_delete". This links against
"clickhouse_common_io", which in turn has lots of 3rd party library
dependencies ... Without linking "clickhouse_new_delete", the number of
compiled files for "HelloWorld" goes down to ca. 70.

As an example, the self-extracting-executable needs none of its current
dependencies but other programs may also benefit.

In order to restore access to the original "add_executable()", the
overriding version is now prefixed. There is precedence for a
"clickhouse_" prefix (as opposed to "ch_"), for example
"clickhouse_split_debug_symbols". In general prefixing makes sense also
because overriding CMake commands relies on undocumented behavior and is
considered not-so-great practice (*).

(*) https://crascit.com/2018/09/14/do-not-redefine-cmake-commands/
2022-07-11 19:36:18 +02:00
Alexey Milovidov
0cbbe153cd Fix typos, the last 1% 2020-08-08 04:21:04 +03:00
Alexey Milovidov
f406eb17ae Added a tool to calculate checksums caused by bit flips 2019-05-19 01:48:28 +03:00