add note on table size #39

	name: CI
	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master
	concurrency:
	group: ${{github.workflow}}-${{github.event.pull_request.number \|\| github.ref}}
	cancel-in-progress: true
	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	ruby: ['3.3', '3.2', '3.1']
	database: ['sqlite', 'postgres', 'mysql', 'mariadb']
	services:
	postgres:
	image: postgres:15
	ports:
	- 5432:5432
	env:
	POSTGRES_USER: postgres
	POSTGRES_PASSWORD: postgres
	POSTGRES_DB: test
	mysql:
	image: mysql:8.0
	ports:
	- 3306:3306
	env:
	MYSQL_ROOT_PASSWORD: root
	MYSQL_DATABASE: test
	mariadb:
	image: 'mariadb:11'
	env:
	MARIADB_ROOT_PASSWORD: root
	MARIADB_DATABASE: test
	ports:
	- 3307:3306 # avoid conflict w/ mysql
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Install
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{matrix.ruby}}
	bundler-cache: true
	- name: Setup database
	run: \|
	case ${{matrix.database}} in
	sqlite)
	echo "DATABASE_URL=sqlite3::memory:" >> $GITHUB_ENV
	;;
	postgres)
	echo "DATABASE_URL=postgres://postgres:postgres@localhost/test" >> $GITHUB_ENV
	;;
	mysql)
	echo "DATABASE_URL=mysql2://root:[email protected]/test" >> $GITHUB_ENV
	;;
	mariadb)
	echo "DATABASE_URL=mysql2://root:[email protected]:3307/test" >> $GITHUB_ENV
	;;
	esac
	- name: Test
	run: bundle exec rake test
	# sqlite is not supported yet because it doesn't support
	# the union syntax we're using
	continue-on-error: ${{matrix.database == 'sqlite'}}

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