| version: '3.7' | |
| services: | |
| minio: | |
| image: minio/minio | |
| ports: | |
| - "9000:9000" | |
| volumes: | |
| - data:/data | |
| environment: | |
| MINIO_REGION: us-east-1 |
Cheatseet assumes you're just playing around on a not clustered ClickHouse server.
docker run -it yandex/clickhouse-client --host your.toy.server.host --port 9500 --user default --password password123 --multiline
SHOW DATABASES
SHOW TABLES (in current database)
SHOW DICTIONARIES (in current database)
| class TestMemoryUsage | |
| LIMIT_MB = 70 # the memory limit you want to test | |
| def run | |
| work_thread = Thread.new do | |
| # your ruby code here | |
| end | |
| loop do | |
| sleep(0.1) |
| require 'fiber' | |
| class RunState | |
| def call(fiber, state = {}, *xs) | |
| result = fiber.resume(*xs) | |
| if fiber.alive? | |
| op, *args = result | |
| case op | |
| when :read |
| global_settings = "~/.iex.exs" | |
| if File.exists?(global_settings), do: Code.require_file(global_settings) | |
| Application.put_env(:elixir, :ansi_enabled, true) | |
| IEx.configure( | |
| colors: [ | |
| eval_result: [:cyan, :bright] , | |
| eval_error: [[:red, :bright, "\n▶▶▶\n"]], | |
| eval_info: [:yellow, :bright ], | |
| ], |
| #!/usr/bin/env ruby | |
| class Array | |
| def my_flatten | |
| return self if empty? | |
| return self unless any? { |el| el.is_a? Array } | |
| last_elem = pop | |
| if last_elem.is_a? Array | |
| my_flatten + last_elem.my_flatten | |
| else |
