roachtest: sqlsmith/setup=seed/setting=no-mutations failed

[cockroach-teamcity]

(roachtest).sqlsmith/setup=seed/setting=no-mutations failed on master@a8e821d13b2b623c38ba82c577536ecde47bd685:

The test failed on branch=master, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/sqlsmith/setup=seed/setting=no-mutations/run_1
	sqlsmith.go:169,sqlsmith.go:199,test_runner.go:753: error: pq: internal error: no volatility for cast unknown::tuple{float}
		stmt:
		WITH
			with_1413 (col_8347)
				AS (
					SELECT * FROM (VALUES (NULL)) AS tab_3504 (col_8347)
					UNION ALL
						SELECT
							*
						FROM
							(
								VALUES
									(NULL),
									((0.24806185066699982:::FLOAT8,)),
									((1.0:::FLOAT8,)),
									(((-1.0537382364273071):::FLOAT8,)),
									((0.8834176659584045:::FLOAT8,))
							)
								AS tab_3505 (col_8348)
				)
		SELECT
			cte_ref_399.col_8347 AS col_8349
		FROM
			with_1413 AS cte_ref_399;

More

Artifacts: /sqlsmith/setup=seed/setting=no-mutations
Related:

• roachtest: sqlsmith decoding unset EncDatum #49251 roachtest: sqlsmith/setup=seed/setting=no-mutations failed C-test-failure O-roachtest O-robot branch-release-20.1 release-blocker

See this test on roachdash
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[asubiotto]

dup of #50258