use int16array instead of text type for temp fix for int2vector type

[jennifersp]

No description provided.

[github-actions]

	Main	PR
covering_index_scan_postgres	575.62/s	554.27/s	-3.8%
index_join_postgres	121.45/s	125.10/s	+3.0%
index_join_scan_postgres	180.04/s	176.64/s	-1.9%
index_scan_postgres	10.89/s	11.07/s	+1.6%
oltp_point_select	2400.97/s	2362.74/s	-1.6%
oltp_read_only	1713.23/s	1696.98/s	-1.0%
select_random_points	109.04/s	111.05/s	+1.8%
select_random_ranges	450.93/s	432.63/s	-4.1%
table_scan_postgres	10.73/s	10.94/s	+1.9%
types_table_scan_postgres	4.89/s	5.03/s	+2.8%

[github-actions]

	Main	PR
Total	42090	42090
Successful	17651	17651
Failures	24439	24439
Partial Successes1	5575	5575

	Main	PR
Successful	41.9363%	41.9363%
Failures	58.0637%	58.0637%

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. ↩