Grouping by boolean fields #6
Description
If your group by field is a boolean field you get the following error:
Unable to get property 'length' of undefined or null reference
Stack trace: TypeError: Unable to get property 'length' of undefined or null reference
at OLAPCube.prototype._expandFact (cube.js:1331:11)
at OLAPCube.prototype.addFacts (cube.js:1444:11)
at onReadDocuments (cube.js:1817:7)