History

Gian Merlino f0f68570ec Use DataSourceAnalysis throughout the query stack. (#9239 ) Builds on #9235, using the datasource analysis functionality to replace various ad-hoc approaches. The most interesting changes are in ClientQuerySegmentWalker (brokers), ServerManager (historicals), and SinkQuerySegmentWalker (indexing tasks). Other changes related to improving how we analyze queries: 1) Changes TimelineServerView to return an Optional timeline, which I thought made the analysis changes cleaner to implement. 2) Added QueryToolChest#canPerformSubquery, which is now used by query entry points to determine whether it is safe to pass a subquery dataSource to the query toolchest. Fixes an issue introduced in #5471 where subqueries under non-groupBy-typed queries were silently ignored, since neither the query entry point nor the toolchest did anything special with them. 3) Removes the QueryPlus.withQuerySegmentSpec method, which was mostly being used in error-prone ways (ignoring any potential subqueries, and not verifying that the underlying data source is actually a table). Replaces with a new function, Queries.withSpecificSegments, that includes sanity checks.		2020-01-23 14:07:14 -08:00
..
src	Use DataSourceAnalysis throughout the query stack. (#9239 )	2020-01-23 14:07:14 -08:00
README.md	De-incubation cleanup in code, docs, packaging (#9108 )	2020-01-03 12:33:19 -05:00
pom.xml	Set version to 0.18.0-SNAPSHOT (#9109 )	2020-01-02 17:55:10 -05:00

README.md

druid-moving-average-query

Overview

Moving Average Query is an extension which provides support for Moving Average and other Aggregate Window Functions in Druid queries.

Documentation

See the druid.apache.org website or under Druid Github Repo.