README.md

• why is it that the haskell Text.CSV version is always around twice as slow?
• how can I use ; as a column separator in the haskell Text.CSV version?

cassava.hs

import Data.Char
import Data.Csv
import qualified Data.ByteString.Lazy.Char8 as BL

main = do
    BL.putStrLn $ encodeWith defaultEncodeOptions {
        encDelimiter = fromIntegral (ord ';')
    } $ [
        ("id", "group")] ++ [
        (("id-" ++ show x ++ show y), "group-" ++ show x)
            | x <- [1..90], y <- [1..222]]

csv.hs

import Text.CSV

main = do
    putStrLn $ printCSV [[
        "col1",
        "col2"]]
    putStrLn $ printCSV [[
        "id-" ++ show x ++ show y,
        "group-" ++ show x] | x <- [1..90], y <- [1..222]]

-- ghc -dynamic csv.hs
-- time ./csv
-- ./csv  0.10s user 0.06s system 99% cpu 0.156 total

csv.php

<?php declare(strict_types=1);

$fd = fopen('php://output', 'a');

fputcsv($fd, [
    'col1',
    'col2',
], ';');

for($i=1; $i <= 90; $i++) {
    for($j=1; $j <= 222; $j++) {
        fputcsv($fd, [
            "id-$i$j",
            "group-$i",
        ], ';');
    }
}

// time php csv.php
// php csv.php  0.02s user 0.07s system 99% cpu 0.090 total