Polars mysql

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Polars MySQL

Polars is a powerful data manipulation library for Rust programming language. It supports various operations on data frames, similar to SQL queries. While Polars doesn’t have a direct implementation of MySQL, you can achieve similar functionality by using its data manipulation capabilities. Here are some examples:

Example 1: Creating a DataFrame


    use polars::prelude::*;

    fn main() {
        // Create a DataFrame
        let df = DataFrame::new(vec![
            ("id", Series::new(vec![1, 2, 3, 4, 5])),
            ("name", Series::new(vec!["John", "Alice", "Bob", "Charlie", "David"])),
            ("age", Series::new(vec![25, 30, 35, 40, 45])),
        ]);

        println!("{:?}", df);
    }

Example 2: Selecting Columns


    use polars::prelude::*;

    fn main() {
        let df = DataFrame::new(vec![
            ("id", Series::new(vec![1, 2, 3, 4, 5])),
            ("name", Series::new(vec!["John", "Alice", "Bob", "Charlie", "David"])),
            ("age", Series::new(vec![25, 30, 35, 40, 45])),
        ]);

        let selected = df.select(&["name", "age"]);

        println!("{:?}", selected);
    }

Example 3: Filtering Rows


    use polars::prelude::*;

    fn main() {
        let df = DataFrame::new(vec![
            ("id", Series::new(vec![1, 2, 3, 4, 5])),
            ("name", Series::new(vec!["John", "Alice", "Bob", "Charlie", "David"])),
            ("age", Series::new(vec![25, 30, 35, 40, 45])),
        ]);

        let filtered = df
            .filter(col("age").gt(lit(30)))
            .select(&["name", "age"]);

        println!("{:?}", filtered);
    }

These are just a few examples to give you an idea of how you can use Polars for similar functionality as MySQL. You can check out the Polars documentation for more details and advanced usage.

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