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=empty/setting=default/run_1
	sqlsmith.go:217,sqlsmith.go:252,test_runner.go:777: error: pq: internal error: runtime error: index out of range [-1]
		stmt:
		SELECT
			tab_632.col0_5 AS col_1039,
			tab_633.col0_1 AS col_1040,
			(-1.3167076110839844):::FLOAT8 AS col_1041,
			tab_631.col0_2 AS col_1042
		FROM
			defaultdb.public.tab_513@tab_513_col0_5_col0_4_col0_1_col0_3_col0_0_idx AS tab_631
			JOIN defaultdb.public.tab_513@tab_513_col0_5_col0_4_col0_1_col0_3_col0_0_idx AS tab_632 ON
					(tab_631.col0_5) = (tab_632.col0_5),
			defaultdb.public.tab_513@[0] AS tab_633;