Release 0.83

Raptor

• Raptor now enables specifying the backup storage location. This feature is highly experimental.
• Fix the handling of shards not assigned to any node.

General

• Fix resource leak in query queues.
• Fix NPE when writing null ARRAY/MAP to Hive.
• Fix {func}json_array_get to handle nested structures.
• Fix UNNEST on null collections.
• Fix a regression where queries that fail during parsing or analysis do not expire.
• Make JSON type comparable.
• Added an optimization for hash aggregations. This optimization is turned off by default. To turn it on, add optimizer.optimize-hash-generation=true to the coordinator config properties.