<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >Logical Decoding SQL Interface</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 9.6.21 Documentation" HREF="index.html"><LINK REL="UP" TITLE="Logical Decoding" HREF="logicaldecoding.html"><LINK REL="PREVIOUS" TITLE="Streaming Replication Protocol Interface" HREF="logicaldecoding-walsender.html"><LINK REL="NEXT" TITLE="System Catalogs Related to Logical Decoding" HREF="logicaldecoding-catalogs.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="2021-02-27T18:26:08"></HEAD ><BODY CLASS="SECT1" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="4" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.6.21 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="Streaming Replication Protocol Interface" HREF="logicaldecoding-walsender.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="logicaldecoding.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" >Chapter 47. Logical Decoding</TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="System Catalogs Related to Logical Decoding" HREF="logicaldecoding-catalogs.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="LOGICALDECODING-SQL" >47.4. Logical Decoding <ACRONYM CLASS="ACRONYM" >SQL</ACRONYM > Interface</A ></H1 ><P > See <A HREF="functions-admin.html#FUNCTIONS-REPLICATION" >Section 9.26.6</A > for detailed documentation on the SQL-level API for interacting with logical decoding. </P ><P > Synchronous replication (see <A HREF="warm-standby.html#SYNCHRONOUS-REPLICATION" >Section 26.2.8</A >) is only supported on replication slots used over the streaming replication interface. The function interface and additional, non-core interfaces do not support synchronous replication. </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="logicaldecoding-walsender.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="logicaldecoding-catalogs.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Streaming Replication Protocol Interface</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="logicaldecoding.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >System Catalogs Related to Logical Decoding</TD ></TR ></TABLE ></DIV ></BODY ></HTML >