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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >Acronyms</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REV="MADE" HREF="mailto:pgsql-docs@postgresql.org"><LINK REL="HOME" TITLE="PostgreSQL 9.2.24 Documentation" HREF="index.html"><LINK REL="UP" TITLE="Appendixes" HREF="appendixes.html"><LINK REL="PREVIOUS" TITLE="Style Guide" HREF="docguide-style.html"><LINK REL="NEXT" TITLE="Bibliography" HREF="biblio.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><META NAME="creation" CONTENT="2017-11-06T22:43:11"></HEAD ><BODY CLASS="APPENDIX" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="5" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.2.24 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="Style Guide" HREF="docguide-style.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="appendixes.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="Bibliography" HREF="biblio.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="APPENDIX" ><H1 ><A NAME="ACRONYMS" ></A >Appendix K. Acronyms</H1 ><P > This is a list of acronyms commonly used in the <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > documentation and in discussions about <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN >. <P ></P ></P><DIV CLASS="VARIABLELIST" ><DL ><DT ><ACRONYM CLASS="ACRONYM" >ANSI</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/American_National_Standards_Institute" TARGET="_top" > American National Standards Institute</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >API</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/API" TARGET="_top" >Application Programming Interface</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >ASCII</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Ascii" TARGET="_top" >American Standard Code for Information Interchange</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >BKI</ACRONYM ></DT ><DD ><P > <A HREF="bki.html" >Backend Interface</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >CA</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Certificate_authority" TARGET="_top" >Certificate Authority</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >CIDR</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing" TARGET="_top" >Classless Inter-Domain Routing</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >CPAN</ACRONYM ></DT ><DD ><P > <A HREF="http://www.cpan.org/" TARGET="_top" >Comprehensive Perl Archive Network</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >CRL</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Certificate_revocation_list" TARGET="_top" >Certificate Revocation List</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >CSV</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Comma-separated_values" TARGET="_top" >Comma Separated Values</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >CTE</ACRONYM ></DT ><DD ><P > <A HREF="queries-with.html" >Common Table Expression</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >CVE</ACRONYM ></DT ><DD ><P > <A HREF="http://cve.mitre.org/" TARGET="_top" >Common Vulnerabilities and Exposures</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >DBA</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Database_administrator" TARGET="_top" >Database Administrator</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >DBI</ACRONYM ></DT ><DD ><P > <A HREF="http://dbi.perl.org/" TARGET="_top" >Database Interface (Perl)</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >DBMS</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Dbms" TARGET="_top" >Database Management System</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >DDL</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Data_Definition_Language" TARGET="_top" >Data Definition Language</A >, SQL commands such as <TT CLASS="COMMAND" >CREATE TABLE</TT >, <TT CLASS="COMMAND" >ALTER USER</TT > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >DML</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Data_Manipulation_Language" TARGET="_top" >Data Manipulation Language</A >, SQL commands such as <TT CLASS="COMMAND" >INSERT</TT >, <TT CLASS="COMMAND" >UPDATE</TT >, <TT CLASS="COMMAND" >DELETE</TT > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >DST</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Daylight_saving_time" TARGET="_top" >Daylight Saving Time</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >ECPG</ACRONYM ></DT ><DD ><P > <A HREF="ecpg.html" >Embedded C for PostgreSQL</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >ESQL</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Embedded_SQL" TARGET="_top" >Embedded SQL</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >FAQ</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/FAQ" TARGET="_top" >Frequently Asked Questions</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >FSM</ACRONYM ></DT ><DD ><P > <A HREF="storage-fsm.html" >Free Space Map</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >GEQO</ACRONYM ></DT ><DD ><P > <A HREF="geqo.html" >Genetic Query Optimizer</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >GIN</ACRONYM ></DT ><DD ><P > <A HREF="gin.html" >Generalized Inverted Index</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >GiST</ACRONYM ></DT ><DD ><P > <A HREF="gist.html" >Generalized Search Tree</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >Git</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Git_(software)" TARGET="_top" >Git</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >GMT</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/GMT" TARGET="_top" >Greenwich Mean Time</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >GSSAPI</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Generic_Security_Services_Application_Program_Interface" TARGET="_top" >Generic Security Services Application Programming Interface</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >GUC</ACRONYM ></DT ><DD ><P > <A HREF="config-setting.html" >Grand Unified Configuration</A >, the <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > subsystem that handles server configuration </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >HBA</ACRONYM ></DT ><DD ><P > <A HREF="auth-pg-hba-conf.html" >Host-Based Authentication</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >HOT</ACRONYM ></DT ><DD ><P > <A HREF="https://git.postgresql.org/gitweb?p=postgresql.git;a=blob;f=src/backend/access/heap/README.HOT;hb=HEAD" TARGET="_top" >Heap-Only Tuples</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >IEC</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/International_Electrotechnical_Commission" TARGET="_top" >International Electrotechnical Commission</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >IEEE</ACRONYM ></DT ><DD ><P > <A HREF="http://standards.ieee.org/" TARGET="_top" >Institute of Electrical and Electronics Engineers</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >IPC</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Inter-process_communication" TARGET="_top" >Inter-Process Communication</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >ISO</ACRONYM ></DT ><DD ><P > <A HREF="http://www.iso.org/iso/home.htm" TARGET="_top" >International Organization for Standardization</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >ISSN</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Issn" TARGET="_top" >International Standard Serial Number</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >JDBC</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Java_Database_Connectivity" TARGET="_top" >Java Database Connectivity</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >LDAP</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Lightweight_Directory_Access_Protocol" TARGET="_top" >Lightweight Directory Access Protocol</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >MSVC</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Visual_C++" TARGET="_top" ><SPAN CLASS="PRODUCTNAME" >Microsoft Visual C</SPAN ></A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >MVCC</ACRONYM ></DT ><DD ><P > <A HREF="mvcc.html" >Multi-Version Concurrency Control</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >NLS</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Internationalization_and_localization" TARGET="_top" >National Language Support</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >ODBC</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Open_Database_Connectivity" TARGET="_top" >Open Database Connectivity</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >OID</ACRONYM ></DT ><DD ><P > <A HREF="datatype-oid.html" >Object Identifier</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >OLAP</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Olap" TARGET="_top" >Online Analytical Processing</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >OLTP</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/OLTP" TARGET="_top" >Online Transaction Processing</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >ORDBMS</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/ORDBMS" TARGET="_top" >Object-Relational Database Management System</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >PAM</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Pluggable_Authentication_Modules" TARGET="_top" >Pluggable Authentication Modules</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >PGSQL</ACRONYM ></DT ><DD ><P > <A HREF="index.html" ><SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN ></A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >PGXS</ACRONYM ></DT ><DD ><P > <A HREF="extend-pgxs.html" ><SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > Extension System</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >PID</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Process_identifier" TARGET="_top" >Process Identifier</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >PITR</ACRONYM ></DT ><DD ><P > <A HREF="continuous-archiving.html" >Point-In-Time Recovery</A > (Continuous Archiving) </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >PL</ACRONYM ></DT ><DD ><P > <A HREF="server-programming.html" >Procedural Languages (server-side)</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >POSIX</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/POSIX" TARGET="_top" >Portable Operating System Interface</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >RDBMS</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Relational_database_management_system" TARGET="_top" >Relational Database Management System</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >RFC</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Request_for_Comments" TARGET="_top" >Request For Comments</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >SGML</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/SGML" TARGET="_top" >Standard Generalized Markup Language</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >SPI</ACRONYM ></DT ><DD ><P > <A HREF="spi.html" >Server Programming Interface</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >SP-GiST</ACRONYM ></DT ><DD ><P > <A HREF="spgist.html" >Space-Partitioned Generalized Search Tree</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >SQL</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/SQL" TARGET="_top" >Structured Query Language</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >SRF</ACRONYM ></DT ><DD ><P > <A HREF="xfunc-c.html#XFUNC-C-RETURN-SET" >Set-Returning Function</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >SSH</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Secure_Shell" TARGET="_top" >Secure Shell</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >SSL</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Secure_Sockets_Layer" TARGET="_top" >Secure Sockets Layer</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >SSPI</ACRONYM ></DT ><DD ><P > <A HREF="http://msdn.microsoft.com/en-us/library/aa380493%28VS.85%29.aspx" TARGET="_top" >Security Support Provider Interface</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >SYSV</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/System_V" TARGET="_top" >Unix System V</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >TCP/IP</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Transmission_Control_Protocol" TARGET="_top" >Transmission Control Protocol (TCP) / Internet Protocol (IP)</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >TID</ACRONYM ></DT ><DD ><P > <A HREF="datatype-oid.html" >Tuple Identifier</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >TOAST</ACRONYM ></DT ><DD ><P > <A HREF="storage-toast.html" >The Oversized-Attribute Storage Technique</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >TPC</ACRONYM ></DT ><DD ><P > <A HREF="http://www.tpc.org/" TARGET="_top" >Transaction Processing Performance Council</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >URL</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/URL" TARGET="_top" >Uniform Resource Locator</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >UTC</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Coordinated_Universal_Time" TARGET="_top" >Coordinated Universal Time</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >UTF</ACRONYM ></DT ><DD ><P > <A HREF="http://www.unicode.org/" TARGET="_top" >Unicode Transformation Format</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >UTF8</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/Utf8" TARGET="_top" >Eight-Bit Unicode Transformation Format</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >UUID</ACRONYM ></DT ><DD ><P > <A HREF="datatype-uuid.html" >Universally Unique Identifier</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >WAL</ACRONYM ></DT ><DD ><P > <A HREF="wal.html" >Write-Ahead Log</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >XID</ACRONYM ></DT ><DD ><P > <A HREF="datatype-oid.html" >Transaction Identifier</A > </P ></DD ><DT ><ACRONYM CLASS="ACRONYM" >XML</ACRONYM ></DT ><DD ><P > <A HREF="http://en.wikipedia.org/wiki/XML" TARGET="_top" >Extensible Markup Language</A > </P ></DD ></DL ></DIV ><P> </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="docguide-style.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="biblio.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Style Guide</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="appendixes.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Bibliography</TD ></TR ></TABLE ></DIV ></BODY ></HTML >