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Besides HBase, a storage handler implementation is also available for Hypertable, and others are being developed for Cassandra, Azure Table, JDBC (MySQL and others), MongoDB, ElasticSearch, Phoenix HBase, VoltDB and Google Spreadsheets. A Kafka handler demo is available.
Hive storage handler support builds on existing extensibility features in both Hadoop and Hive:
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When STORED BY is specified, then row_format (DELIMITED or SERDE) and STORED AS cannot be specified, however starting from Hive 4.0, they can coexist to create the Iceberg table, this is the only exception. Optional SERDEPROPERTIES can be specified as part of the STORED BY clause and will be passed to the serde provided by the storage handler.
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