Horizontal aggregators without FROM clause should work #695
Description
Blog post about MLDB Hacktoberfest 2016
A query using an horizontal aggregator but no dataset should work. Eg.:
SELECT horizontal_sum({1 AS a, 2 AS b})
should return 3. Currently it fails as an invalid query.
Context
- Aggregate Function (See Vertical, Horizontal and Temporal Aggregation)
Task
- Mldb1911HorizontalAggNoFrom test must pass without "expectedFailure".
- Add the missing horizontal aggregators to the test to cover them all.