Add `approx_percentile_cont()` aggregation function#1539

Merged

alamb merged 10 commits intoapache:masterfrom domodwyer:dom/tdigest

Jan 31, 2022

Commits on Jan 26, 2022

fixup! refactor: bastilla approx_quantile support
domodwyer
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Commits on Jan 27, 2022

refactor: rebase onto main
domodwyer
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Commits on Jan 29, 2022

Commits on Jan 31, 2022

refactor: clippy lints
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