A program just started failing last night at 1:28am EST, which for the past several weeks worked successfully.

The issue using the report client

actual call

rc.exportDataUsingSQL(self.uri, "JSON", stream, sql, None)

where the sql is a simple "select column from query-table"

However, the query-table is currently empty.  The report client, however, seems to be creating an empty row

[u'', u'', u'', u'', u'']

I am expecting no results to create a "rows" JSON array, with zero elements.  Not a single entry with 'empty' field values.

When I look at the query table in the Web Interface, it says it contains 0 rows (as expected.)

Did something change last night ?  I cannot understand what else would have made this start failing so suddenly.

Is this something that can be fixed ? 

Cheers,
Tyler