information schema sequences

[NathanGabrielson]

Adds sequences to information_schema, following the specification outlined by Postgresql here.

[github-actions]

	Main	PR
covering_index_scan_postgres	530.69/s	542.41/s	+2.2%
index_join_postgres	132.24/s	140.37/s	+6.1%
index_join_scan_postgres	249.10/s	249.94/s	+0.3%
index_scan_postgres	12.58/s	12.82/s	+1.9%
oltp_point_select	2562.76/s	2529.25/s	-1.4%
oltp_read_only	1979.40/s	1954.90/s	-1.3%
select_random_points	131.54/s	129.30/s	-1.8%
select_random_ranges	422.01/s	425.93/s	+0.9%
table_scan_postgres	12.81/s	12.74/s	-0.6%
types_table_scan_postgres	5.85/s	5.86/s	+0.1%

[fulghum]

Looks good!

[github-actions]

	Main	PR
Total	42090	42090
Successful	17648	17648
Failures	24442	24442
Partial Successes1	5575	5575

	Main	PR
Successful	41.9292%	41.9292%
Failures	58.0708%	58.0708%

Footnotes

1. These are tests that we're marking as Successful, however they do not match the expected output in some way. This is due to small differences, such as different wording on the error messages, or the column names being incorrect while the data itself is correct. ↩