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Verdict TODO
Yongjoo Park edited this page Jul 8, 2017
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- Supporting Spark SQL, Druid
- Make Verdict's meta data location configurable
- Let Verdict read configuration options from a file
- Suggesting samples after analyzing query logs
- Supporting SSL (for non-Kerberos)
- Making confidence interval estimates analytic
- Supporting IN (subquery) correctly
- Adding confidence intervals by Bootstrapping: I have pushed updates into dev repo; I will merge this into the main repository along with count-distinct feature.
- Supporting COUNT(distinct *)
- Add universal samplers: By default, universe samples are built for top-ten high-cardinality columns.
- Currently working on using stratified samples for low-cardinality columns.
- If no appropriate samples are available, Verdict will use native HLL provided by Impala, Spark SQL, etc.
- Supporting Kerberos
- Kerberos JDBC connection confirmed; will add this shortly.