HIVE-28197: Add deserializer to convert JSON plans to RelNodes #6312
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Co-authored-by: Soumyakanti Das <soumyakanti.das.08@gmail.com>
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What changes were proposed in this pull request?
HiveRelJsonSchemaReaderfor creating aRelOptSchemafrom a JSON query planHiveRelJsonReaderfor creating aRelNodefrom a JSON query planHiveRexJsonBuilderspecialized for transformations from JSONRelInputon allRelNodesupporting deserializationHiveSqlOperatorTablefor looking up Hive operators from Calcite APIsWhy are the changes needed?
Allow conversion of JSON plans obtained using
EXPLAIN FORMATTED CBOback toRelNodeobjects.Does this PR introduce any user-facing change?
No
How was this patch tested?