_analyze_tables_: issues, comments

This data as json

table	column	total_rows	num_null	num_blank	num_distinct	most_common	least_common
issues	comments	2892	0	0	44	[[1, 721], [0, 546], [2, 456], [3, 328], [4, 205], [5, 122], [6, 99], [7, 74], [8, 53], [9, 51]]	[[31, 1], [33, 1], [34, 1], [36, 1], [40, 1], [42, 1], [47, 1], [49, 1], [51, 1], [54, 1]]