count.md

Count - Count the rows of CSV files

1. Count

Count result: 3
┌─────┬────────┐
│ idx │ name   │
├─────┼────────┤
│  1  │ tom    │
│  2  │ jerry  │
│  3  | hansen |
└─────┴────────┘

2. Index - add index for csv

3. Check - detecting issues caused by double quotation marks

Check result: 2
(This is an incorrect result)
┌─────┬────────┐
│ idx │ name   │
├─────┼────────┤
│  1  │  tom   │
│  2  │ "jerry │
│  3  | hansen |
└─────┴────────┘