545
80%
master: 92%

Ran 14 May 2014 08:33AM UTC

Jobs 1

Files 59

Run time 11s

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Build # 545

Build Type

push

travis-ci

Committed by

dhalperi

Commit Message

myrialang: RemoveUnusedColumns

Some operators, like GroupBy and Join construct completely new tuples
after concluding their operation. In some cases neither the operator nor
the output it produces actually need all the columns:

T has schema x:int, y:int.
Query is "select x, COUNT(*) from T;" -- note that y is not used

For these cases, insert an Apply beforehand that drops any unused
columns.

Note that RemoveUnusedColumns and PushApply play off each other. In
practice, we should probably wait for convergence. However, here we just
run each operator twice, followed by a PushApply to round it out.

Run Details

5202 of 6507 relevant lines covered (79.94%)

0.8 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	545.1	14 May 2014 08:33AM UTC	0	79.94	Travis Job 545.1

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