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index

The index command creates an index for a CSV file to speed up subsequent operations.

Syntax​

qsv index <input_file>

Description​

The index command creates an index for a CSV file, allowing for efficient data access and processing. This is particularly useful for large datasets.

Options​

  • None specific to index

Exit Codes​

  • 0: Index creation successful
  • Non-zero: An error occurred

Examples​

Basic Usage​

Create an index for a CSV file:

qsv index DLD_Transactions_English.csv

Common Use Cases​

  • Improving performance for large datasets
  • Enabling fast data access and processing
  • Supporting random access mode in luau

Tips​

  • Indexing is efficient, even for large datasets
  • Use in combination with other qsv commands for more complex data processing pipelines

See Also​

  • count - for counting rows in your dataset