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
Category: Apache Impala
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
“Is Distinct From” Operator Apache Impala
Impala is a SQL database engine that uses MPP (Massive Parallel Processing) to process large amounts of data contained in a Hadoop cluster. It’s a
Complex Data Types – ARRAY within MAP
Please click here for “ARRAY in MAP” The data is available in a number of formats, volumes, and types. It may be well-organized, partially-organized, or
Complex Data Types – ARRAY within STRUCT
This is one of the articles that required a significant amount of time and effort to complete. Once an idea was formed, I went to
Complex Data Types – STRUCT within ARRAY -2
Related to the previous post, the following is another example of complex data types being used within another complex data type. We’ll deal with STRUCT
Big Data & SQL 