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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>48.4. Logical Decoding SQL Interface</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets V1.79.1" /><link rel="prev" href="logicaldecoding-walsender.html" title="48.3. Streaming Replication Protocol Interface" /><link rel="next" href="logicaldecoding-catalogs.html" title="48.5. System Catalogs Related to Logical Decoding" /></head><body><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">48.4. Logical Decoding <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">SQL</acronym> Interface</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="logicaldecoding-walsender.html" title="48.3. Streaming Replication Protocol Interface">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="logicaldecoding.html" title="Chapter 48. Logical Decoding">Up</a></td><th width="60%" align="center">Chapter 48. Logical Decoding</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 12.0 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="logicaldecoding-catalogs.html" title="48.5. System Catalogs Related to Logical Decoding">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="LOGICALDECODING-SQL"><div class="titlepage"><div><div><h2 class="title" style="clear: both">48.4. Logical Decoding <acronym class="acronym">SQL</acronym> Interface</h2></div></div></div><p>
     See <a class="xref" href="functions-admin.html#FUNCTIONS-REPLICATION" title="9.26.6. Replication Functions">Section 9.26.6</a> for detailed documentation on
     the SQL-level API for interacting with logical decoding.
   </p><p>
    Synchronous replication (see <a class="xref" href="warm-standby.html#SYNCHRONOUS-REPLICATION" title="26.2.8. 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.
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