_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	3784	0	0	3781	[["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]]	[["2023-07-08T18:40:19Z", 1], ["2023-07-08T19:50:22Z", 1], ["2023-07-08T20:08:09Z", 1], ["2023-07-09T01:03:25Z", 1], ["2023-07-09T01:03:41Z", 1], ["2023-07-09T01:04:14Z", 1], ["2023-07-09T01:05:05Z", 1], ["2023-07-09T01:13:36Z", 1], ["2023-07-09T01:14:06Z", 1], ["2023-07-10T19:24:26Z", 1]]