v.db.update manual: removed example for on the fly calculation (yet unsubmitted code)

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@63647 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/v.db.update/v.db.update.html

@@ -60,27 +60,6 @@ v.db.update mygeodetic_pts col=zval qcol="CAST(z_value AS double precision)" \
             where="z_value <> 'N/A'"
 </pre></div>
 
-<h3>Updating of columns with on the fly calculation (SQLite extended functions)</h3>
-
-North Carolina data set example: adding new column, copying values from
-another table column with on the fly calculation:
-
-<div class="code"><pre>
-g.copy vect=precip_30ynormals,myprecip_30ynormals
-v.db.addcolumn myprecip_30ynormals column="logjuly double precision"
-v.db.update myprecip_30ynormals column="logjuly" query_column="log(jul)" \
-  sqliteextra=$HOME/sqlite_extensions/libsqlitefunctions.so
-
-v.db.select myprecip_30ynormals columns=jul,logjuly
-jul|logjuly
-132.842|4.88916045210132
-127|4.84418708645859
-124.206|4.82194147751127
-104.648|4.65060233738593
-98.298|4.58800368106618
-...
-</pre></div>
-
 
 <h2>SEE ALSO</h2>