Testing #445 - adding sqlserver integration tests #613

Job	Run time
integration (snowflake)	2m 4s
integration (bigquery)	3m 2s
integration (postgres)	1m 21s
single-run-different-versions (snowflake, 1_3_0)	1m 22s
single-run-different-versions (snowflake, 1_4_0)	1m 27s
single-run-different-versions (snowflake, 1_5_0)	1m 23s
single-run-different-versions (snowflake, 1_6_0)	1m 38s
single-run-different-versions (snowflake, 1_7_0)	1m 27s
single-run-different-versions (snowflake, 1_8_0)	1m 37s
single-run-different-versions (bigquery, 1_3_0)	2m 18s
single-run-different-versions (bigquery, 1_4_0)	2m 29s
single-run-different-versions (bigquery, 1_5_0)	2m 12s
single-run-different-versions (bigquery, 1_6_0)	2m 11s
single-run-different-versions (bigquery, 1_7_0)	2m 2s
single-run-different-versions (bigquery, 1_8_0)	2m 6s
single-run-different-versions (postgres, 1_3_0)	1m 9s
single-run-different-versions (postgres, 1_4_0)	1m 12s
single-run-different-versions (postgres, 1_5_0)	1m 9s
single-run-different-versions (postgres, 1_6_0)	1m 11s
single-run-different-versions (postgres, 1_7_0)	1m 12s
single-run-different-versions (postgres, 1_8_0)	1m 13s
single-run-different-versions (sqlserver, 1_3_0)	1m 36s
single-run-different-versions (sqlserver, 1_4_0)	2m 11s
single-run-different-versions (sqlserver, 1_5_0)	50s
single-run-different-versions (sqlserver, 1_6_0)	46s
single-run-different-versions (sqlserver, 1_7_0)	1m 42s
single-run-different-versions (sqlserver, 1_8_0)	1m 38s
	44m 28s

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