REDSHIFT UNLOAD WITH GZIP HOW TO

Why did the command generate multiple files even though there were very few records in the table? The reason is, I was running UNLOAD on a single node (dw1.xlarge) cluster that has two slices. S3://flydata-test-unload/unload-folder/customer_0001_part_00 This generates the following files s3://flydata-test-unload/unload-folder/customer_0000_part_00 TO 's3://flydata-test-unload/unload-folder/customer_' credentials To unload all the records in this table to S3 at location 's3://flydata-test-unload/unload-folder', we can run the following command UNLOAD ('select * from customers') Before we start, let's create a sample table customer as defined below and insert a few records into it: CREATE TABLE 'customers' (

REDSHIFT UNLOAD WITH GZIP HOW TO

Let's look at how to use UNLOAD command with some examples.

Whatever the reason, Redshift provides you with the UNLOAD SQL command to accomplish this. You want to copy data from one Redshift cluster to another.There are complex transformations to perform on your data and you would like to extract the data to S3.To better manage space in your Redshift cluster, you want to unload some unused data to S3 (so that it can be later loaded into the cluster if required).You want to load the data in your Redshift tables to some other data source (e.g.There are various reasons why you would want to do this, for example: After using Integrate.io to load data into Amazon Redshift, you may want to extract data from your Redshift tables to Amazon S3.

Redshift unload with gzip