lowlevel.query() sometimes receives empty connection

[gijzelaerr]

[njnes]

seems fixed

[gijzelaerr]

I'm still experiencing this issue sporadically.

[gijzelaerr]

The issue is not easy to reproduce (yet), but I get it when I run the test suite multiple times. I also saw this error come by once:

monetdbe.exceptions.DatabaseError: MALException:monetdbe.monetdbe_result_fetch:MonetDBe has not yet started

[gijzelaerr]

This code seems to deterministically reproduce the issue:

import monetdbe

q = "create table test(i int)"
m = monetdbe.connect()
c = m.cursor()
c.execute(q)
del m
m = monetdbe.connect()
c = m.cursor()
c.execute(q)

[gijzelaerr]

I think this issue has been resolved.