Thanks John,
I can try installing QGIS 1.7 and try loading postgis2.0 layer it again. Do I 
need to uninstall QGIS1.6 as well as the GRASS installations it came with first?

(I had used the stand alone installer that included GRASS earlier, but don't 
seem to have an uninstall option for all of them together..unless I am missing 
something)

Vishal



From: John Callahan [mailto:[email protected]]
Sent: Monday, July 18, 2011 5:22 PM
To: Vishal Mehta
Cc: [email protected]
Subject: Re: [Qgis-user] trouble adding postgis(2.0) layer to qgis(1.6)

I do not believe PG 2.0 is supported in QGIS 1.6.  I had a similar error when I 
had tried.  It does work well using QGIS 1.7 or greater.

- John


On Mon, Jul 18, 2011 at 7:45 PM, Vishal Mehta 
<[email protected]<mailto:[email protected]>> wrote:
Hi all,

I'm using Quantum GIS 1.6.0,
Postgresql 9.0 and
Postgis 2.0 (dev version)

On Windows 7.

I'm having trouble adding a Postgis layer to QGIS. I loaded a shapefile into my 
database separately using the shapefile loader and that seemed to woork fine. 
However when I try to bring it into QGIS I get the following error:
1 cursor states lost.
SQL: declare qgisf1 binary cursor for select "gid",asbinary("geom",'NDR') from 
"public"."wardscleanattributes" where "geom" && 
setsrid('BOX3D(-1.2547169811320755 -1.0000000000000000, 1.2547169811320755 
1.0000000000000000)'::box3d,-1)
Result: 7 (ERROR: function asbinary(geometry, unknown) does not exist
LINE 1: declare qgisf1 binary cursor for select "gid",asbinary("geom...
^
HINT: No function matches the given name and argument types. You might need to 
add explicit type casts.
)

The layer has a gist index, as well as a serial, primary key column.
The same procedure used to work fine with
QGIS 1.0.2 - postgresql 8.3 and postgis 1.5

Help?
Vishal




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