first/last aggregators and nulls#9161

Merged

jon-wei merged 7 commits intoapache:masterfrom

clintropolis:first-last-agg-null-handling

Jan 20, 2020

Commits on Jan 10, 2020

null handling for numeric first/last aggregators, refactor to not extend nullable numeric agg since they are complex typed aggs
clintropolis
committed
initially null or not based on config
clintropolis
committed

Commits on Jan 17, 2020

Merge remote-tracking branch 'upstream/master' into first-last-agg-null-handling
clintropolis
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