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<p><a class="moz-txt-link-freetext" href="https://gis.stackexchange.com/questions/49950/converting-mulitlinestring-to-linestring-in-postgresql-with-postgis/49994">https://gis.stackexchange.com/questions/49950/converting-mulitlinestring-to-linestring-in-postgresql-with-postgis/49994</a></p>
<p>If you simply want to have a single type in your table it's much
easier to convert the linestrings to mutilinestrings using this
command like this<br>
</p>
<pre class="lang-sql prettyprint prettyprinted" style=""><code><span class="kwd">ALTER</span><span class="pln"> </span><span class="kwd">TABLE</span><span class="pln"> my_table
</span><span class="kwd">ALTER</span><span class="pln"> </span><span class="kwd">COLUMN</span><span class="pln"> geom TYPE geometry</span><span class="pun">(</span><span class="pln">MultiLineString</span><span class="pun">,</span><span class="lit">4326</span><span class="pun">)</span><span class="pln"> </span><span class="kwd">USING</span><span class="pln"> ST_Multi</span><span class="pun">(</span><span class="pln">geom</span><span class="pun">);</span></code></pre>
<p>(You'll have change the above command regarding table- and column
names and crs id)</p>
<pre class="moz-signature" cols="72">--
Med venlig hilsen / Kind regards
Bo Victor Thomsen</pre>
<div class="moz-cite-prefix">Den 02-09-2019 kl. 09:23 skrev
<a class="moz-txt-link-abbreviated" href="mailto:paul.malm@lfv.se">paul.malm@lfv.se</a>:<br>
</div>
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<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have a table
(bufferedlines) with a geometry column (the_geom) including
both Linestrings and MultiLinestrings, what is the easiest
way to change the_geom to a Linestring column?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Kind regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Paul <o:p></o:p></span></p>
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