- ANSI
- 
      
      American National Standards Institute
      
- API
- 
      Application Programming Interface
      
- ASCII
- 
      American Standard
      Code for Information Interchange
      
- BKI
- 
      Backend Interface
      
- CA
- 
      Certificate Authority
      
- CIDR
- 
      Classless
      Inter-Domain Routing
      
- CPAN
- 
      Comprehensive Perl Archive Network
      
- CRL
- 
      Certificate
      Revocation List
      
- CSV
- 
      Comma
      Separated Values
      
- CTE
- 
      Common Table Expression
      
- CVE
- 
      Common Vulnerabilities and Exposures
      
- DBA
- 
      Database
      Administrator
      
- DBI
- 
      Database Interface (Perl)
      
- DBMS
- 
      Database Management
      System
      
- DDL
- 
      Data
      Definition Language, SQL commands such as - CREATE
      TABLE,- ALTER USER
 
- DML
- 
      Data
      Manipulation Language, SQL commands such as - INSERT,- UPDATE,- DELETE
 
- DST
- 
      Daylight
      Saving Time
      
- ECPG
- 
      Embedded C for PostgreSQL
      
- ESQL
- 
      Embedded
      SQL
      
- FAQ
- 
      Frequently Asked
      Questions
      
- FSM
- 
      Free Space Map
      
- GEQO
- 
      Genetic Query Optimizer
      
- GIN
- 
      Generalized Inverted Index
      
- GiST
- 
      Generalized Search Tree
      
- Git
- 
      Git
      
- GMT
- 
      Greenwich Mean Time
      
- GSSAPI
- 
      Generic
      Security Services Application Programming Interface
      
- GUC
- 
      Grand Unified Configuration,
      the PostgreSQL subsystem that handles server configuration
      
- HBA
- 
      Host-Based Authentication
      
- HOT
- 
      Heap-Only Tuples
      
- IEC
- 
      International
      Electrotechnical Commission
      
- IEEE
- 
      Institute of Electrical and
      Electronics Engineers
      
- IPC
- 
      Inter-Process
      Communication
      
- ISO
- 
      International Organization for
      Standardization
      
- ISSN
- 
      International Standard
      Serial Number
      
- JDBC
- 
      Java
      Database Connectivity
      
- JIT
- 
      Just-in-Time
      compilation
      
- JSON
- 
      JavaScript Object Notation
      
- LDAP
- 
      Lightweight
      Directory Access Protocol
      
- LSN
- 
      Log Sequence Number, see - pg_lsnand WAL Internals.
 
- MSVC
- 
      Microsoft
      Visual C
      
- MVCC
- 
      Multi-Version Concurrency Control
      
- NLS
- 
      National
      Language Support
      
- ODBC
- 
      Open
      Database Connectivity
      
- OID
- 
      Object Identifier
      
- OLAP
- 
      Online Analytical
      Processing
      
- OLTP
- 
      Online Transaction
      Processing
      
- ORDBMS
- 
      Object-Relational
      Database Management System
      
- PAM
- 
      Pluggable
      Authentication Modules
      
- PGSQL
- 
      PostgreSQL
      
- PGXS
- 
      PostgreSQL Extension System
      
- PID
- 
      Process Identifier
      
- PITR
- 
      Point-In-Time
      Recovery (Continuous Archiving)
      
- PL
- 
      Procedural Languages (server-side)
      
- POSIX
- 
      Portable Operating
      System Interface
      
- RDBMS
- 
      Relational
      Database Management System
      
- RFC
- 
      Request For
      Comments
      
- SGML
- 
      Standard Generalized
      Markup Language
      
- SPI
- 
      Server Programming Interface
      
- SP-GiST
- 
      Space-Partitioned Generalized Search Tree
      
- SQL
- 
      Structured Query Language
      
- SRF
- 
      Set-Returning Function
      
- SSH
- 
      Secure
      Shell
      
- SSL
- 
      Secure Sockets Layer
      
- SSPI
- 
      Security
      Support Provider Interface
      
- SYSV
- 
      Unix System V
      
- TCP/IP
- 
      Transmission
      Control Protocol (TCP) / Internet Protocol (IP)
      
- TID
- 
      Tuple Identifier
      
- TLS
- 
      
      Transport Layer Security
      
- TOAST
- 
      The Oversized-Attribute Storage Technique
      
- TPC
- 
      Transaction Processing
      Performance Council
      
- URL
- 
      Uniform Resource
      Locator
      
- UTC
- 
      Coordinated
      Universal Time
      
- UTF
- 
      Unicode Transformation
      Format
      
- UTF8
- 
      Eight-Bit Unicode
      Transformation Format
      
- UUID
- 
      Universally Unique Identifier
      
- WAL
- 
      Write-Ahead Log
      
- XID
- 
      Transaction Identifier
      
- XML
- 
      Extensible Markup
      Language