adding record nil support #61

	name: simpledb-test
	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Go
	uses: actions/setup-go@v2
	with:
	go-version: 1.22
	- name: Linearization Test
	run: make linear-simpledb
	- uses: actions/upload-artifact@v4
	if: always()
	with:
	path: simpledb/porcupine/*.html
	- name: Crash Test
	run: make crash-simpledb

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