</para>
<para>Availability: 1.4</para>
<!-- optionally mention that this function uses indexes if appropriate -->
- <note>
- <para><inlinegraphic fileref="images/warning.png" /> This function does not use indexes. Include && And ST_CrossingDirection != 0 or ST_Crosses
- if you want to throw out linestrings that do not cross.</para>
- </note>
- <note><para><inlinegraphic fileref="images/warning.png" />This function is under development and the name and constants may change.</para></note>
</refsection>