mirror of https://github.com/apache/druid.git
80d2cd3632
* snapshot column capabilities for realtime cursors changes: * adds `CursorBuildSpec.getPhysicalColumns()` to allow specifying the set of required physical columns from a segment. if null, all columns are assumed to be required (e.g. full scan) * `IncrementalIndexCursorFactory`/`IncrementalIndexCursorHolder` uses the physical columns from the cursor build spec to know which set of dimensions to 'snapshot' the capabilities for, allowing expression selectors on realtime queries to no longer be required to treat selectors from `StringDimensionIndexer` as multi-valued unless they truly are multi-valued. this fixes several bugs with expressions on realtime queries that change a value from `StringDimensionIndexer` to some type other than string, which would often result in a single element array from the column being handled as multi-valued * `StringDimensionIndexer.setSparseIndexed()` now adds the default value to the dictionary when set * `StringDimensionIndexer` column value selectors now always report that they are dictionary encoded, and that name lookup is possible in advance on their selectors (since set sparse adds the null value so the cardinality is correct) * fixed a mistake that expression selectors for realtime queries with no null values could not use dictionary encoded selectors * hmm * test changes * cleanup * add test coverage * fix test * fixes * cleanup |
||
|---|---|---|
| .. | ||
| src | ||
| pom.xml | ||