The goal of this article is to discuss the boundaries of utilizing the various file formats and compression codecs available in Apache Hive for different
Category: Cloudera Impala
Complex Data Types – STRUCT within MAP
As we’ve seen in previous blogs, Hive complex data types such as arrays, maps, and structs are a composite of primitive or complex data types.
Terminate Query Execution in Apache Hive & Impala
In some instances, we may need to abort the query execution. The reason might be because an erroneous query was executed, a change of mind,
Using Avro Schema URL in Apache Hive
Please visit my previous article for an introduction and detailed information regarding Apache Avro and its use in Apache Hive. This is a follow-up to
Starting Hosts and Roles in Cloudera VM
Long ago, while I was running Cloudera VM 5.10.0.0, I thought to download the most recent version (of that time) to see what modifications or
Identify datatype of a column – Apache Impala
Some built-in functions cannot run on some columns because they are built on numerical or character columns. We will not be able to determine the
Big Data & SQL 