Dear List,<br><br>value's number 4 in this raster come out with ST_Value:<br><br>SELECT ST_Value(rast, 1, 8, 2), ST_BandnoDataValue(rast), ST_BandPixelType(rast)<br>FROM (SELECT '<div>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'::raster rast) foo<br>




<br>but not with ST_DumpAsPolygons:<br><br>SELECT (ST_DumpAsPolygons(rast)).val<br>FROM (SELECT '0100000100000000000088C340000000000088C3C03FF0F16F910F29C1F38C064BB32D244100000000000000000000000000000000C67D00000A000A0045FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0100FFFFFFFFFFFFFFFFFFFF0300FFFF040005000600FFFFFFFFFFFF0C000D000E000F00100011001200FFFFFFFFFFFF180019001A001B001C001D001E00FFFFFFFFFFFF2400250026002700280029002A00FFFFFFFFFFFF3400350036003700380039003A00FFFFFFFF4B004C004D004E004F00500051005200FFFFFFFF6A006B006C006D006E006F0070007100FFFFFFFF8F009000910092009300940095009600FFFFFFFFB500B600B700B800B900BA00BB00BC00'::raster rast) foo<br>




<br>Is this a bug or I am doing something wrong ?<br><br>Thanks,<br><br>Jean<div><div><br><img src="https://mail.google.com/mail/images/cleardot.gif"><br>-- <br>Jean Marchal<br><br>Etudiant au doctorat / PHD student<br>Université Laval - Pavillon Abitibi-Price<br>

Faculté de foresterie, de géographie et de géomatique<br>2405, rue de la Terrasse<br>Québec (Québec) G1V 0A6<br></div></div>
</div>