OHDSI/WhiteRabbit

Populate 'N rows' for csv files with number of lines

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#337 opened on Jun 9, 2022

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Good First IssueWhiteRabbitenhancement

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Description

Currently, when scanning csv files, the 'N rows' value is always -1 as WhiteRabbit cannot count the number of rows like it does for SQL sources.

To populate the 'N rows', we have to do a line count in the csv file, similar how this can be done with bash command wc -l <filename>.

Contributor guide

Research direction
Implement a line count for CSV files by reading the file and counting newlines or using a simple loop.
Tech stack
java
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Java
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70