by calling functions
   via SQL (see <a class="xref" href="logicaldecoding-sql.html" title="49.4. Logical Decoding SQL Interface">Section 49.4</a>). It is also possible
   to write additional methods of consuming the output of a replication slot
   without modifying core code
   (see <a class="xref" href="logicaldecoding-writer.html" title="49.7. Logical Decoding Output Writers">Section 49.7</a>).
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