title: Convert text to Parquet
body: <p>I have pipe delimited un-partitioned data as text files on Amazon S3 which I have unloaded from redshift to clear space up on our redshift nodes. I have created a table in Athena to access this data, but I would like to optimize my data for performance. I am trying to convert my data to parquet format using AWS EMR and store them as parquet formatted files on an s3 bucket. I tried to follow instructions on the AWS website, but I find the instructions a little confusing.</p>