[mapserver-users] Using unique
Pena Kupen
kupen at wippies.fi
Thu Jul 14 00:59:44 PDT 2011
Sorry doubleposting! There where little "copy/paste-error". You can ignore prior...
-Pena
Hello all,
I'm just upgrading our system from mapserver 5.4.2 to 5.6.6.
In some of our layer queries, I got now error:
msPostGISParseData(): Query error. Error parsing PostGIS DATA variable. You must specifiy 'using unique' when supplying a subselect in the data definition.
When using 5.4.2, this is not happaning and maps are working ok.
On mapserver/postgis manual (http://mapserver.org/input/vector/postgis.html) it says:
The DATA parameter is used to specify the data used to draw the map. The form of DATA is [geometry_column] from [table_name|sql_subquery] using unique [unique_key] using srid=[spatial_reference_id]. The using unique and using srid= clauses are optional, but using them improves performance.
Is this a bug or why I cannot anymore use queries without "using unique"?
-Pena
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