- Column content: postgresql kernel source code analysis
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Table of contents
foreword
This article introduces the postgresql source code directory structure and the core code directory. Friends who are interested in the pg kernel should pay attention to the content of this column.
Source code download
The source package can be downloaded from the official website below
You can also find the postgres source code warehouse on github/gitee/gitcode and clone it locally, so that you can continuously update to the latest code modification.
github is not very stable, the following is the mirror warehouse of gitcode of csdn
mirrors / postgres / postgres · GitCode
source code structure
The structure of the root directory of the postgres source code is as follows
[senllang@localhost postgres]$ ll
total 1180
-rw-r--r--. 1 obvious develops 490 Feb 9 2021 aclocal.m4
drwxr-xr-x. 2 senllang develops 4096 Feb 9 2021 config
-rw-r--r--. 1 senllang develops 427787 Apr 21 19:29 config.log
-rwxr-xr-x. 1 only develops 39999 Apr 21 19:29 config.status
-rwxr-xr-x. 1 senllang develops 568656 Feb 9 2021 configure
-rw-r--r--. 1 transparent develops 82388 Feb 9 2021 configure.in
drwxr-xr-x. 57 clear develops 4096 Feb 9 2021 contrib
-rw-r--r--. 1 obvious develops 1192 Feb 9 2021 COPYRIGHT
drwxr-xr-x. 3 senllang develops 87 Feb 9 2021 doc
-rw-r--r--. 1 senllang develops 4278 Apr 21 19:29 GNUmakefile
-rw-r--r--. 1 obvious develops 4278 Feb 9 2021 GNUmakefile.in
-rw-r--r--. 1 obviously develops 277 Feb 9 2021 HISTORY
-rw-r--r--. 1 clear develops 1665 Feb 9 2021 Makefile
-rw-r--r--. 1 senllang develops 1213 Feb 9 2021 README
-rw-r--r--. 1 clear develops 721 Feb 9 2021 README.git
drwxr-xr-x. 16 clear develops 4096 Apr 21 19:29 src
Main Directory Description
| doc |
Document directory, which can compile hand-deleted documents in pdf and html formats |
| contrib |
Plug-in source code directory, not included in the kernel code, the plug-in is loaded by create extension when it is used |
| src |
The source code directory of the postgres database |
core code directory
Let's look at the directory structure under src, which contains the code of the postgresql kernel.
drwxr-xr-x. 28 senllang develops 4096 Feb 9 2021 backend
drwxr-xr-x. 21 develops 4096 Feb 9 2021 bin
drwxr-xr-x. 3 obvious develops 4096 Feb 9 2021 common
-rw-r--r--. 1 senllang develops 173 Feb 9 2021 DEVELOPERS
drwxr-xr-x. 2 obvious develops 4096 Feb 9 2021 fe_utils
drwxr-xr-x. 31 senllang develops 4096 Apr 21 19:29 include
drwxr-xr-x. 4 senllang develops 47 Feb 9 2021 interfaces
-rw-r--r--. 1 clear develops 1842 Feb 9 2021 Makefile
-rw-r--r--. 1 obvious develops 34174 Apr 21 19:29 Makefile.global
-rw-r--r--. 1 obvious develops 34512 Feb 9 2021 Makefile.global.in
lrwxrwxrwx. 1 senllang develops 31 Apr 21 19:29 Makefile.port -> ../src/makefiles/Makefile.linux
drwxr-xr-x. 2 senllang develops 4096 Feb 9 2021 makefiles
-rw-r--r--. 1 senllang develops 15338 Feb 9 2021 Makefile.shlib
-rw-r--r--. 1 senllang develops 6392 Feb 9 2021 nls-global.mk
drwxr-xr-x. 6 clear develops 78 Feb 9 2021 pl
drwxr-xr-x. 2 senllang develops 4096 Feb 9 2021 port
drwxr-xr-x. 2 obvious develops 142 Feb 9 2021 template
drwxr-xr-x. 16 senllang develops 4096 Feb 9 2021 test
drwxr-xr-x. 4 obvious develops 4096 Feb 9 2021 timezone
drwxr-xr-x. 10 senllang develops 4096 Feb 9 2021 tools
drwxr-xr-x. 2 senllang develops 4096 Feb 9 2021 tutorial
Main catalog introduction:
| backend |
Database server source code |
| bin |
Client and server tool code |
| common |
General algorithm source code, such as md5, sha2, json, base64, etc. |
| fe_utils |
Client common structure and processing |
| include |
Header directory |
| interfaces |
Provided libpq, ecpg and other development interface libraries |
| pl |
Process language interface and syntax processing, such as plpgsql, plperl, plpython and other development interfaces |
| port |
libpgport public library |
| template |
Provide compilation parameters under different compilation platforms |
| test |
Test program, start the test through make check |
| timezone |
Time zone related public interface |
| tools |
Suggestions or configurations for the use of tools, such as compiling under win, ci, editor, and valgrind, etc. |
| tutorial |
Basic SQL and step routines using postgresql |
Finally, thank you for browsing!
end
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