Postgres Source directory Structure

1. First Level Catalogue Introduction

|_postgres

|_ACLOCAL.M4 part of the file used for------------config

|_config----------------Config file directory

|_configure-------------Configure file

|_contrib---------------Contribution Program

|_copyright----------Copyright Information

|_doc------------------Document Directory

|_gnumakefile.in-------Makefile Prototype

|_history-------------Revision History

|_readme-------------git description

|_readme.git----------git files

|_SRC-------------------Source Code Directory

2.SRC Catalogue Introduction

|_src

|_backend---------------Back-end Source directory

|_bcc32.mak-------------Win32 Makefile (for Borland C + +)

|_bin code for UNIX commands such as the---------------------Psql

|_common---------------Common functions

|_developers----------Developer-oriented comments

|_include-----------------Header File

|_interfaces--------------Front-end related code

|_makefile----------------Makefile

|_makefile.global.in-------The embryonic form of makefile.global used by configure

|_makefile.shlib-----------Makefile of shared libraries

|_NLS-GLOBAL.MK rules for the makefile file for-----------information directory

|_PL code for-----------------------stored procedure language

|_port--------------------Platform porting-related code

|_template----------------Platform-related setup templates

|_test---------------------various test scripts

|_timezone---------------time Zone-related code

|_tools-------------------tools and documentation developed by each

|_tutorial-----------------Tutorials

|_win32.bak--------------Win32 makefile (for Visual C + +)

1.backend Catalogue Introduction

|_backend

|_access-----------------Various storage access methods (under each subdirectory),

|_common (Common function)

|_gin (gerneralized Inverted Index Universal Reverse index)

|_gist (gerneralized Search Tree Universal Index)

|_hash (hash index)

|_heap (access method for heap)

|_bootstrap initialization of the-------------database (INITDB)

|_catalog----------------System Catalog

|_commands SQL commands other than the------------Select/insert/update/delete

|_common.mk-----------

|_executor--------------Actuator (Access execution)

|_foreign----------------FDW (Foreign Data Wrapper) processing

|_lib---------------------Common functions

|_LIBPQ------------------front-end <-> back-end communication processing

|_makefile---------------Makefile File

|_nls.mk----------------

|_nodes-----------------the related processing function of constructing tree nodes

|_optimizer--------------Optimizer

|_parser-----------------SQL Statement Parser

|_po---------------------

|_port-------------------Platform-related code

|_postmaster------------Postmaster main function (resident Postgres)

|_regex------------------Regular Processing

|_replication-------------Streaming Replacation

|_rewrite----------------rule and view-related override processing

|_snowball--------------Full-Text search related (semantic processing)

|_storage---------------shared memory, storage on disk, cache, etc. all at once, two records management

|_buffer--------------Cache Management

|_file-----------------File

|_freespace----------free Space map Management

|_IPC communication between-----------------processes

|_large_object--------Access functions for large objects

|_lmgr----------------Lock Management

|_page---------------page Access related functions

|_smgr---------------Storage Manager

|_tcop----------------The main part of the Postgres (process of the database engine)

|_tsearch----------------Full Text Search

|_utils-------------------various modules

|_adt-----------------Embedded data types

|_cache---------------Cache Management

|_error----------------Error Handling

|_fmgr----------------Function Management

|_misc-----------------Other

|_mmgr---------------Memory management functions

|_resowner------------The management of data in query processing (Buffer bin and table lock)

|_sort-----------------Sorting processing

MVCC Management of |_time-----------------affairs

Postgres Source directory Structure