I’ve been noticing an inconsistent behavior in the GUI with BaseX 11 beta (build 17d8426).

I have a simple query on a database created from a CSV file. Sometimes it works, but sometimes the root context is evaluated as an empty sequence:

- rewrite context value: . -> ()

- rewrite util:root(nodes): util:root(()) -> ()

I notice this when I open the database as context and try to execute the query. After the query fails, if I try to click on the “home” icon in the result panel, it also returns an empty sequence, even though the database is open.

If I reopen the database and run the query, it works again.

Sample data:

<csv>

  <record>

    <entry>http://id.loc.gov/authorities/names/n00000121</entry>

    <entry>http://id.loc.gov/rwo/agents/n00000121</entry>

    <entry>0.11861849</entry>

  </record>

  <record>

    <entry>http://id.loc.gov/authorities/names/n00000122</entry>

    <entry>http://id.loc.gov/rwo/agents/n00000122</entry>

    <entry>0.11699477</entry>

  </record>

  <record>

    <entry>http://id.loc.gov/authorities/names/n00000267</entry>

    <entry>http://id.loc.gov/rwo/agents/n00000267</entry>

    <entry>0.10811427</entry>

  </record>

</csv>

Query (with DB open as context):

count(distinct-values(

  for $rec in /csv/record 

  where contains($rec/entry[1], "id.loc.gov")

  return $rec/entry[1]

))

Thanks in advance,

Tim

-- 
Tim A. Thompson (he, him)
Librarian for Applied Metadata Research
Yale University Library
www.linkedin.com/in/timathompson