_analyze_tables_: commits, author_date

This data as json

table	column	total_rows	num_null	num_blank	num_distinct	most_common	least_common
commits	author_date	3922	0	0	3919	[["2022-12-15T17:34:07Z", 2], ["2022-03-15T15:36:35Z", 2], ["2021-07-30T00:44:16Z", 2], ["2017-10-24T02:36:44Z", 1], ["2017-10-24T02:25:48Z", 1], ["2017-10-24T02:00:37Z", 1], ["2017-10-23T16:02:40Z", 1], ["2017-10-23T15:28:00Z", 1], ["2017-10-23T00:41:19Z", 1], ["2017-10-23T00:39:03Z", 1]]	[["2023-11-04T00:49:50Z", 1], ["2023-11-04T00:54:37Z", 1], ["2023-11-04T00:58:31Z", 1], ["2023-11-04T00:59:09Z", 1], ["2023-11-04T01:03:42Z", 1], ["2023-11-04T03:55:19Z", 1], ["2023-12-06T18:49:21Z", 1], ["2023-12-08T05:05:27Z", 1], ["2023-12-08T05:22:27Z", 1], ["2023-12-08T05:31:03Z", 1]]