avinayak

Basics

1. The Log-Structured Merge-Tree (LSM-Tree)
2. B-Tree vs Log-Structured Merge-Tree
3. Modern B-tree techniques
4. LSM-based Storage Techniques: A Survey

B-trees and CPU Caches

1. B-tree Indexes and CPU Caches by Goetz Graefe and Per-Åke Larson

avinayak

CREATE TABLE audit_log (
    id serial PRIMARY KEY,
    object_id uuid NOT NULL,
    object_type VARCHAR(50),
    event VARCHAR(50),
    delta JSONB,
    timestamp TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
);

avinayak

[
  {
    "w": "あっち",
    "k": "",
    "k_en": "",
    "m": "over there",
    "wt": "Pronoun",
    "j": 5,
    "i": 1,
    "c": "w"

avinayak

{
  "あっち": {
    "index": 3,
    "word": "あっち",
    "kana": "",
    "romaji": "",
    "type": "Pronoun",
    "jlpt": 5,
    "meaning": "over there",
    "card": "word",

avinayak

defmodule Cron do
  use GenServer
  @name __MODULE__

  def start_link(initial_map) do
    GenServer.start_link(__MODULE__, initial_map, name: @name)
  end

  def add_job(key, job, interval) do
    GenServer.cast(@name, {:add_job, {key, job, interval}})

avinayak

# run with $ elixir --no-halt hello.exs
Mix.install([{:plug_cowboy, "~> 2.0"}])

defmodule HWPlug.Plug do
  import Plug.Conn

  def init(options), do: options

  def call(conn, _opts) do
    conn

avinayak

1. pg. xxi: Care About Your Craft

Why spend your life developing software unless you care about doing it well?

2. pg. xxi: Think! About Your Work

Turn off the autopilot and take control. Constantly critique and appraise your work.

3. pg. 2: You Have Agency

avinayak

cmake_minimum_required(VERSION 3.17)
project(Pong)

set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")


add_executable(Pong main.cpp pong.cpp pong.h)

avinayak

import urllib.request
import urllib.parse
import json
import random
import tweepy

que = ['why', 'how', 'why', 'how', 'why', 'how', 'why', 'how',
       'what', 'who', 'can', 'is', 'will', 'could', 'would']

def auto_query(que, word):

avinayak

### Add the snippet below in sketch.js
### optional: convert to mp4 using ffmpeg -fflags +genpts -i input.webm -r 24 out.mp4

function record(){chunks.length=0;let e=document.querySelector("#defaultCanvas0").captureStream(300),t=new MediaRecorder(e);t.ondataavailable=(e=>{e.data.size&&chunks.push(e.data)}),t.onstop=exportVideo,setTimeout(()=>{t.stop()},1e4),t.start()}function exportVideo(e){var t=new Blob(chunks),o=document.createElement("video");o.id="recorded",o.controls=!0,o.src=URL.createObjectURL(t),document.body.appendChild(o),o.play()}chunks=[],record();