Overview

This document describes the best practice in practices for parsing csv CSV files.

General Tips

• Parsing csv CSV with header extraction from the file as of release 6.2.x does not work when used on large files and multiple smaller files.

• Recommendation: parse as csv with skipping header in Wrangler. This would entail the following steps 

  • Add a filter condition to skip header

    • filter-row-if-true offset == 0

  • Drop offset

    • drop offset

  • Parse as csv skipping header

    • parse-as-csv :COLUMN 'SEPRATOR' false

  • Rename the parsed entities in wrangler Wrangler (using set-headers)

    • set-headers COL1,COL2,…,COLN