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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 >JSON Functions</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="Functions and Operators" HREF="functions.html"><LINK REL="PREVIOUS" TITLE="XML Functions" HREF="functions-xml.html"><LINK REL="NEXT" TITLE="Sequence Manipulation Functions" HREF="functions-sequence.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="SECT1" ><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="XML Functions" HREF="functions-xml.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="functions.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" >Chapter 9. Functions and Operators</TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="Sequence Manipulation Functions" HREF="functions-sequence.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="FUNCTIONS-JSON" >9.15. JSON Functions</A ></H1 ><P > <A HREF="functions-json.html#FUNCTIONS-JSON-TABLE" >Table 9-40</A > shows the functions that are available for creating JSON (see <A HREF="datatype-json.html" >Section 8.14</A >) data. </P ><DIV CLASS="TABLE" ><A NAME="FUNCTIONS-JSON-TABLE" ></A ><P ><B >Table 9-40. JSON Support Functions</B ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><COL><COL><COL><COL><THEAD ><TR ><TH >Function</TH ><TH >Description</TH ><TH >Example</TH ><TH >Example Result</TH ></TR ></THEAD ><TBODY ><TR ><TD > <TT CLASS="LITERAL" >array_to_json(anyarray [, pretty_bool])</TT > </TD ><TD > Returns the array as JSON. A PostgreSQL multidimensional array becomes a JSON array of arrays. Line feeds will be added between dimension 1 elements if <TT CLASS="PARAMETER" >pretty_bool</TT > is true. </TD ><TD ><TT CLASS="LITERAL" >array_to_json('{{1,5},{99,100}}'::int[])</TT ></TD ><TD ><TT CLASS="LITERAL" >[[1,5],[99,100]]</TT ></TD ></TR ><TR ><TD > <TT CLASS="LITERAL" >row_to_json(record [, pretty_bool])</TT > </TD ><TD > Returns the row as JSON. Line feeds will be added between level 1 elements if <TT CLASS="PARAMETER" >pretty_bool</TT > is true. </TD ><TD ><TT CLASS="LITERAL" >row_to_json(row(1,'foo'))</TT ></TD ><TD ><TT CLASS="LITERAL" >{"f1":1,"f2":"foo"}</TT ></TD ></TR ></TBODY ></TABLE ></DIV ></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="functions-xml.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="functions-sequence.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >XML Functions</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="functions.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Sequence Manipulation Functions</TD ></TR ></TABLE ></DIV ></BODY ></HTML >