<p>Thanks a lot</p>
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<blockquote style="padding-left: 5px; margin-left: 5px; border-left: #ff0000 2px solid;">> Every update to the table leaves an orphaned record that's removed<br />> on vacuum. The topology functions make lots of updates, so you'd<br />> better enable autovacuum and/or automatically vacuum every N edge<br />> deletion.</blockquote>
<p>Ok ! My work's DB contains one million of face so I'm working now on topology requests to improve automatic topological traitement and preserve relation with GeoTopoObject objects. Hoply I test it on a smaller test DB !!</p>
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<blockquote style="padding-left: 5px; margin-left: 5px; border-left: #ff0000 2px solid;"><br />> <br />> > I use the same way to remove edges wich have an area0 AND right_face<>0, I'd treated 100 000 Edges in 45 mm ...<br />> > <br />> > I use postgis 2.0<br />> <br />> Is that 2.0.0 or which exact version ?<br />> Some performance improvements were added in 2.0.2, for example<br />> (adding indexes on start_node and end_node fields of the edge_data<br />> table, do you have those ?)</blockquote>
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<p>Nice I've got them.</p>
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<p>Thanks again</p>
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<blockquote style="padding-left: 5px; margin-left: 5px; border-left: #ff0000 2px solid;"><br />> <br />> Latest release in 2.0 branch was 2.0.7 from last year.<br />> <br />> --strk;<br />> </blockquote>