Release 1.9.0

Key Features

Area	Feature
Task Level Recovery	Support task retry and recovery in the Create Table As Select scenario
Connector Extension	1. Add support Iceberg connector to add/delete/modify/access data, hidden partitioning, time travel, transaction and small file compaction 2. Enhance Elastic Search connector to support filter and aggregation pushdown
Performance Enhancement	1. CTE optimizations including reuse execution pipeline and cte results materialization and reuse 2. Plan optimizations including use exact partitioning, adaptive aggregations, join independence assumptions for selectivity estimates and execution policy for better filtering