Here’s a simple example that copies data from a text file in s3 to a table in Redshift: copy catdemoįrom 's3://awssampledbuswest2/tickit/category_pipe.txt' If the source file doesn’t naturally line up with the table’s columns, you can specify the column order by including a column list.
Authorization to access your data source (usually either an IAM role or the access ID and secret key of an IAM user). Your data source (see list of potential data sources above). The name of the table you want to copy your data into. In the next section, we’ll take a closer look at upserts. Per this last note, the recommended way of deduplicating records in Amazon Redshift is to use an “upsert” operation. This means that deduplication must be handled by your application. In Amazon Redshift, primary keys are not enforced. The COPY command appends the new data to the end of the table, without modifying any existing rows. Amazon Redshift Spectrum external tables are read-only you can’t COPY to an external table. The maximum size of a single input row from any source is 4 MB. There are a few things to note about using the Redshift COPY command: If your table already has data in it, the COPY command will append rows to the bottom of your table. 
An Amazon S3 bucket (the most common source).
The source can be one of the following items: The Redshift COPY command, funnily enough, copies data from one source and loads it into your Amazon Redshift database.
#Redshift copy command truncation how to#
How to load data from different s3 regions In this guide, we’ll go over the Redshift COPY command, how it can be used to import data into your Redshift database, its syntax, and a few troubles you may run into.
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