How to use node-mysql without loads all the rows into the memory? Ask Question
const mysql = require('mysql');
const stream = require('stream');
connection.query('SELECT * FROM `bigdata`')
.on('error', function(err) {
// Do something about error in the query
})
.stream() // Stream allows you to get records one-by-one
.pipe(new stream.Transform({
objectMode: true,
transform: function (row, encoding, callback) {
// Do something with the row of data
callback();
}
}))
.on('finish', function() {
connection.end();
});
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