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U're right! ;-)<br>
<br>
Emilia Venturato a écrit :
<blockquote cite="mid200609051537.00754.venturato@faunalia.it"
type="cite">
<pre wrap="">Alle 15:14, martedì 5 settembre 2006, Bill Thoen ha probabilmente scritto:
</pre>
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<pre wrap="">I created a table using a 'SELECT * INTO ...' statement which contained a
geometry column, and then I performed a few more spatial selections on it
without problems. Later I realized that the geometry column in my new table
wasn't referenced in the Geometry_Columns, but it didn't seem to matter. So
what is the purpose of the Geometry_Columns table?
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</pre>
</blockquote>
<pre wrap=""><!---->
Geometry_columns is a table (OGC standard) that allows other apps (Mapserver,
QuantumGIS, ecc.) to use postgis data. All standard OGC applications looks at
geometry_columns to have a complete overview of geographic data in your
database.
If you work only in postgis, you can forget about geometry_columns but you'll
find problems when you will use your data from other applications (mapserver
for example doesn't show geographical data if geometry_columns is not
correct).
At least, that's how I understand it.
bye
Lia
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