Rare query crashes upon DQLs and DMLs containing subselects

Details

Detail name Value
Changelog Number 5548
Type Bug
Status Resolved
Affected Versions
Fix Versions EXASOL 6.0.7
Resolution Date 2017-12-18

Synopsis

We have discovered a rare bug in our system that manifest itself by query crashes and "Internal server error" messages.
The affected queries are both DMLs and DQLs that materialize subselects.

Details

The bug is caused by a rare race condition. Other than potential query crashes it has no other side effects.

Workaround
As a simple workaround, we expect that repeating affected statements should work. A fix is provided in EXASOL 6.0.7.