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Hive is an abstraction on Hadoop Map Reduce. It provides a SQL like interface for querying HDFS data, whch accounts for most of it’s popularity. In Hive, table structured data in HDFS is encapsulated with a table as in RDBMS. The DDL for table creation in Hive looks very similar to table creation DDL in RDBMS. In one of my recent projects, I had a need for storing and querying JSON formatted hie
We all know that any real application needs to do query based on attributes other than the primary key or row key in case of Cassandra. Cassandra version .7 onwards provides native secondary index support. But there are several limitations. Native Secondary Index Cassandra’s native index is like a hashed index, which means you can only do equality query and not range query. The link I just mentio
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