merge master#1

Merged

ulysses-you merged 7 commits intoulysses-you:masterfrom

Jul 9, 2019

Commits on Jul 8, 2019

[SPARK-28261][CORE] Fix client reuse test

gaborgsomogyi
authored and
dongjoon-hyun
committed
[SPARK-28159][ML] Make the transform natively in ml framework to avoid extra conversion

zhengruifeng
authored and
srowen
committed

Commits on Jul 9, 2019

[SPARK-28308][CORE] CalendarInterval sub-second part should be padded before parsing
dongjoon-hyun
committed
[SPARK-28273][SQL][PYTHON] Convert and port 'pgSQL/case.sql' into UDF test base

HyukjinKwon
authored and
cloud-fan
committed
[SPARK-26713][CORE][FOLLOWUP] revert the partial fix in ShuffleBlockFetcherIterator

cloud-fan
authored and
HyukjinKwon
committed
[SPARK-28250][SQL] QueryPlan#references should exclude producedAttributes

cloud-fan
authored and
HyukjinKwon
committed
[SPARK-28309][R][INFRA] Fix AppVeyor to run SparkR tests by avoiding to use devtools for testthat
HyukjinKwon
committed