David Blasby wrote:
I noticed this change.
I think this is the incorrect interpretation since there is a
<PropertyIsNull> test in Filter.
oops, I noticed that <PropertyIsNull> is interpreted as
"[ interstate = null ]"
which causes exceptions because the right hand side of the "=" is 'null'
(not something that means null).
I'll update the postgis driver to handle this case, but its likely that
<PropertyIsNull>...</PropertyIsNull>
AND
<PropertyIsEqualTo>
...
<Literal><Literal>
</PropertyIsEqualTo>
Will cause exceptions in *MOST* datastores.
I'm only changing this in the postgis driver (SQLEncoderPostgis) because
I believe its done differently in different databases.
SELECT * FROM <table> WHERE <column> isnull; -- postgresql
SELECT * FROM <table> WHERE isnull(<column>); -- oracle???
Other databases will have problems too.
dave
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