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The "Hive/HBaseIntegration" page has been changed by JohnSichi. http://wiki.apache.org/hadoop/Hive/HBaseIntegration?action=diff&rev1=14&rev2=15 -------------------------------------------------- * if no column-name is given, then the Hive column will map to all columns in the corresponding HBase column family, and the Hive MAP datatype must be used to allow access to these (possibly sparse) columns * there is currently no way to access the HBase timestamp attribute, and queries always access data with the latest timestamp. * since HBase does not associate datatype information with columns, the serde converts everything to string representation before storing it in HBase; there is currently no way to plug in a custom serde per column + * it is not necessary to reference every HBase column family, but those that are not mapped will be inaccessible via the Hive table; it's possible to map multiple Hive tables to the same HBase table The next few sections provide detailed examples of the kinds of column mappings currently possible.
