Problem with queryByAttributes
armin.burger at GMX.NET
Thu Feb 8 16:15:01 EST 2007
I was wondering that your first 2 queries worked. There seems to be a
bug in Mapserver 4.10 and filters and attribute queries on PostGIS that
requires to submit literal double quotes, like
queryByAttribures("gid", "\"gid = '16'\"", MS_MULTIPLE)
otherwise the WHERE clause gets truncated. I read that it is fixed in
CVS, but so far no stable release with these bug fixes is available.
Dirk Jesko wrote:
> I would like to query a layer which gets its data from PostGIS. Which
> syntax has to be used for the qstring argument of the queryByAttributes
> function? I tried the usual syntax of a WHERE clause, but it failed.
> queryByAttribures("gid", "gid = 16", MS_MULTIPLE) and
> queryByAttribures("gid", "gid = 16 OR gid = 17", MS_MULTIPLE) work.
> However, the following calls do not work
> queryByAttribures("gid", "gid = '16'", MS_MULTIPLE)
> queryByAttribures("gid", "gid IN (16, 17)", MS_MULTIPLE)
> In such a case postgres reports a syntax error, because the WHERE clause
> is incomplete: WHERE (gid = ) resp. WHERE (gid IN ), i.e. the values are
> Do I have to specify the expression differently or is this a bug?
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