hadoop - Hive file formats advantages and disadvantages -


I start working with the hive. I wanted to know which questions should be used for each table format in formats: rcfile, orcfile, wooden roof, delimited text

When you have a large number of columns and you frequently use specific columns, then RC file format will be a good option instead you will retrieve the required columns instead of reading the entire line of data, Save time in this way . The data is divided into groups of rows, which are later divided into groups of columns.

The delimited text file is the normal file format.

Comments

Popular posts from this blog

Verilog Error: output or inout port "Q" must be connected to a structural net expression -

jasper reports - How to center align barcode using jasperreports and barcode4j -

c# - ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type already has the same primary key value -