Add typename in header and add DESCRIBE statement #714

	# Copyright 2022 Google LLC
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	on:
	schedule:
	- cron: '0 0 * * *'
	push:
	branches:
	- master
	pull_request:
	name: CI
	jobs:
	test:
	runs-on: ubuntu-latest
	services:
	emulator:
	image: gcr.io/cloud-spanner-emulator/emulator:1.4.9
	ports:
	- 9010:9010
	- 9020:9020
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-go@v2
	with:
	go-version: '1.19'
	- run: go version
	- run: make setup-emulator
	env:
	SPANNER_EMULATOR_HOST: localhost:9010
	SPANNER_EMULATOR_HOST_REST: localhost:9020
	PROJECT: fake-project
	INSTANCE: fake-instance
	DATABASE: fake-database
	- name: make test with Cloud Spanner Emulator
	run: make test
	env:
	SPANNER_EMULATOR_HOST: localhost:9010
	SPANNER_EMULATOR_HOST_REST: localhost:9020
	PROJECT: fake-project
	INSTANCE: fake-instance
	DATABASE: fake-database
	- name: make test (with a real instance if available)
	run: make test
	env:
	PROJECT: ${{ secrets.PROJECT }}
	INSTANCE: ${{ secrets.INSTANCE }}
	DATABASE: ${{ secrets.DATABASE }}
	CREDENTIAL: ${{ secrets.CREDENTIAL }}

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