Fast_count

Overview:

FastCount is a remarkable gem designed for those working with large databases, particularly PostgreSQL, MySQL, MariaDB, and SQLite. It tackles the common problem of obtaining quick row counts in large tables, which can often take an excruciatingly long time. With its impressive ability to provide nearly accurate counts in seconds, it streamlines the process significantly for developers and database administrators, allowing them to make informed decisions without the wait. The functionalities extend beyond just counting rows; they also provide distinct count capabilities and estimations that are vital for efficient database management.

Features:

• Speed: FastCount dramatically reduces the time needed for accurate counts in large tables, providing results in fractions of a second compared to traditional methods.
• High Accuracy: Achieves over 99% accuracy in row counts, making it a reliable tool for quick estimates, especially on large datasets.
• Multi-Database Support: Works seamlessly with PostgreSQL, MySQL, MariaDB, and SQLite, making it versatile for different database environments.
• Estimated Count Functionality: Offers an estimated count feature that utilizes internal statistics for fast approximations, ideal for very large tables.
• Exact Distinct Count: Utilizes "Loose Index Scan" techniques to provide fast distinct value counts, outperforming standard COUNT(DISTINCT) queries.
• Configuration Options: Users can override default settings, allowing for custom configurations tailored to specific project needs.
• Easy Installation: FastCount can be effortlessly added to Ruby applications through a simple Gemfile entry and supports quick setup via built-in commands.
• Community Driven: Built on ideas from the quick_count gem, welcoming contributions and improvements from the developer community.