only. For geometry, length units are in units of spatial reference. For geography, units are in meters.</para>
<para>Availability: 1.2.2</para>
<para>Enhanced: 2.1.0 support for geography was introduced.</para>
+ <para>Changed: 2.1.0 As a result of the introduction of geography support: The construct <code>SELECT ST_Segmentize('LINESTRING(1 2, 3 4)',0.5);</code> will result in ambiguous function error. You need to have properly typed object e.g. a geometry/geography column, use ST_GeomFromText, ST_GeogFromText or
+ <code>SELECT ST_Segmentize('LINESTRING(1 2, 3 4)'::geometry,0.5);</code></para>
<note><para>This will only increase segments. It will not lengthen segments shorter than
max length</para></note>
</refsection>
</sect2>
+
+ <sect2 id="NewFunctions_2_1_Changed">
+ <title>PostGIS Functions changed behavior in 2.1</title>
+ <para>The functions given below are PostGIS functions that have changed behavior in PostGIS 2.1 and may require application changes.</para>
+ <note><para>If you are using a function that you don't see documented,
+ it's probably deprecated, about to be deprecated, or internal and should be avoided. If you have applications or tools
+ that rely on deprecated functions, please refer to <link linkend="legacy_faq" /> for more details.</para></note>
+
+ <itemizedlist>
+ <!-- Pull out the purpose section for each ref entry -->
+ <xsl:for-each select='//refentry'>
+ <xsl:sort select="@id"/>
+ <xsl:variable name="refid">
+ <xsl:value-of select="@id" />
+ </xsl:variable>
+
+ <xsl:variable name="refname">
+ <xsl:value-of select="refnamediv/refname" />
+ </xsl:variable>
+ <!-- For each section if there is note about enhanced in this version -->
+ <xsl:for-each select="refsection">
+ <xsl:for-each select="para | */para">
+ <xsl:choose>
+ <xsl:when test="contains(.,'Changed: 2.0')">
+ <listitem><simpara><link linkend="{$refid}"><xsl:value-of select="$refname" /></link> - <xsl:value-of select="." /></simpara></listitem>
+ </xsl:when>
+ </xsl:choose>
+ </xsl:for-each>
+ </xsl:for-each>
+ </xsl:for-each>
+ </itemizedlist>
+ </sect2>
<sect2 id="NewFunctions_2_0">
<title>PostGIS Functions new, behavior changed, or enhanced in 2.0</title>