fix: major performance issues with bytea performance brianc#2240

Author: regevbr

packages/pg/bench.js

@@ -1,5 +1,4 @@
 const pg = require('./lib')
-const pool = new pg.Pool()
 
 const params = {
   text:
@@ -17,7 +16,7 @@ const seq = {
 }
 
 const exec = async (client, q) => {
-  const result = await client.query({
+  await client.query({
     text: q.text,
     values: q.values,
     rowMode: 'array',
@@ -39,7 +38,9 @@ const bench = async (client, q, time) => {
 const run = async () => {
   const client = new pg.Client()
   await client.connect()
+  console.log('start')
   await client.query('CREATE TEMP TABLE foobar(name TEXT, age NUMERIC)')
+  await client.query('CREATE TEMP TABLE buf(name TEXT, data BYTEA)')
   await bench(client, params, 1000)
   console.log('warmup done')
   const seconds = 5
@@ -61,7 +62,21 @@ const run = async () => {
   console.log('insert queries:', queries)
   console.log('qps', queries / seconds)
   console.log('on my laptop best so far seen 5799 qps')
-  console.log()
+
+  console.log('')
+  console.log('Warming up bytea test')
+  await client.query({
+    text: 'INSERT INTO buf(name, data) VALUES ($1, $2)',
+    values: ['test', Buffer.allocUnsafe(104857600)],
+  })
+  console.log('bytea warmup done')
+  const start = Date.now()
+  const results = await client.query('SELECT * FROM buf')
+  const time = Date.now() - start
+  console.log('bytea time:', time, 'ms')
+  console.log('bytea length:', results.rows[0].data.byteLength, 'bytes')
+  console.log('on my laptop best so far seen 1107ms and 104857600 bytes')
+
   await client.end()
   await client.end()
 }