roachtest: scbench/randomload/nodes=3/ops=10000/conc=20 failed

[cockroach-teamcity]

roachtest.scbench/randomload/nodes=3/ops=10000/conc=20 failed with artifacts on ricky-test-upgrade-roachprod @ 54211ed8213a53ed455b859d3b157539618d6e8b:

		  | {
		  |  "workerId": 0,
		  |  "clientTimestamp": "22:17:10.808007",
		  |  "ops": [
		  |   "BEGIN",
		  |   "ALTER TABLE schema4636.table5546 ALTER COLUMN \"col5025_5029\" DROP STORED"
		  |  ],
		  |  "expectedExecErrors": "42611",
		  |  "expectedCommitErrors": "",
		  |  "message": "ROLLBACK; Successfully got expected execution error: ERROR: column \"col5025_5029\" is not a computed column (SQLSTATE 42611)",
		  |  "txStatus": "TxStatusRollbackSuccess"
		  | }
		  | {
		  |  "workerId": 0,
		  |  "clientTimestamp": "22:17:10.827683",
		  |  "ops": [
		  |   "BEGIN",
		  |   "ALTER VIEW schema5711.view5712 RENAME TO schema5711.view5713"
		  |  ],
		  |  "expectedExecErrors": "3F000,42P01",
		  |  "expectedCommitErrors": "",
		  |  "message": "ROLLBACK; Successfully got expected execution error: ERROR: relation \"schema5711.view5712\" does not exist (SQLSTATE 42P01)",
		  |  "txStatus": "TxStatusRollbackSuccess"
		  | }
		  | {
		  |  "workerId": 0,
		  |  "clientTimestamp": "22:17:10.333341",
		  |  "ops": [
		  |   "BEGIN",
		  |   "ALTER TABLE schema707.table4268 ALTER COLUMN \"col4149_4163\" SET DATA TYPE REGNAMESPACE"
		  |  ],
		  |  "expectedExecErrors": "0A000",
		  |  "expectedCommitErrors": "",
		  |  "message": "ROLLBACK; Successfully got expected execution error: ERROR: ALTER COLUMN TYPE from string to regnamespace is only supported experimentally (SQLSTATE 0A000)",
		  |  "txStatus": "TxStatusRollbackSuccess"
		  | }
		  | {
		  |  "workerId": 0,
		  |  "clientTimestamp": "22:17:09.940416",
		  |  "ops": [
		  |   "BEGIN",
		  |   "ALTER TABLE schema3399.table5025 ALTER COLUMN \"col5025_5029\" SET DATA TYPE CHAR"
		  |  ],
		  |  "expectedExecErrors": "",
		  |  "expectedCommitErrors": "",
		  |  "message": "***UNEXPECTED ERROR; Received an unexpected execution error: ERROR: ALTER COLUMN TYPE from name to char is only supported experimentally (SQLSTATE 0A000)",
		  |  "txStatus": "TxStatusRollbackSuccess"
		  | }
		Wraps: (4) exit status 20
		Error types: (1) *withstack.withStack (2) *errutil.withPrefix (3) *main.withCommandDetails (4) *exec.ExitError

Reproduce

To reproduce, try:

# From https://go.crdb.dev/p/roachstress, perhaps edited lightly.
caffeinate ./roachstress.sh scbench/randomload/nodes=3/ops=10000/conc=20

Same failure on other branches

• roachtest: scbench/randomload/nodes=3/ops=10000/conc=20 failed #63496 roachtest: scbench/randomload/nodes=3/ops=10000/conc=20 failed [C-test-failure O-roachtest O-robot branch-63484]
• roachtest: scbench/randomload/nodes=3/ops=10000/conc=20 failed #63373 roachtest: scbench/randomload/nodes=3/ops=10000/conc=20 failed [C-test-failure O-roachtest O-robot branch-release-20.2]
• roachtest: scbench/randomload/nodes=3/ops=10000/conc=20 failed #61688 roachtest: scbench/randomload/nodes=3/ops=10000/conc=20 failed [C-test-failure O-roachtest O-robot branch-release-21.1]
• roachtest: scbench/randomload/nodes=3/ops=10000/conc=20 failed #56230 roachtest: scbench/randomload/nodes=3/ops=10000/conc=20 failed [C-test-failure O-roachtest O-robot branch-master]

/cc @cockroachdb/sql-schema

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