[CALCITE-4539] Customization of Metadata Handlers #2374
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Mar 23, 2021
core/src/main/java/org/apache/calcite/rel/metadata/JaninoRelMetadataProvider.java
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…tadataProvider.java Co-authored-by: Vladimir Sitnikov <sitnikov.vladimir@gmail.com>
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Tracking with #2378 |
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Adding MetadataHandlerProvider and MetadataCache interface to support pluggable behavior. Shift propagation RelMeatadataProvider to RelMetadataQuery from thread local to being parameterized.