roachtest: unoptimized-query-oracle/disable-rules=half/seed-multi-region failed

**Note:** This build has runtime assertions enabled. If the same failure was hit in a run without assertions enabled, there should be a similar failure without this message. If there isn't one, then this failure is likely due to an assertion violation or (assertion) timeout.

roachtest.unoptimized-query-oracle/disable-rules=half/seed-multi-region [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RoachtestNightlyGcePrivateBazel/21518918?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RoachtestNightlyGcePrivateBazel/21518918?buildTab=artifacts#/unoptimized-query-oracle/disable-rules=half/seed-multi-region) on master @ [17d4d0939905dacd9f19fb6a372bed8ac62a73fa](https://github.com/cockroachdb/cockroach/commits/17d4d0939905dacd9f19fb6a372bed8ac62a73fa):

Failed with:

```
(query_comparison_util.go:501).runOneRoundQueryComparison: internal error while running unoptimized statement. 243 statements run: pq: internal error: unhandled op distribute
test artifacts and logs in: /artifacts/unoptimized-query-oracle/disable-rules=half/seed-multi-region/run_1
```
Cluster Node to Ip Mapping:
| Node | Public IP | Private IP |
| --- | --- | --- |
| teamcity-21518918-1789538360-61-n9cpu4-geo-0001 | | 10.91.98.186 |
| teamcity-21518918-1789538360-61-n9cpu4-geo-0002 | | 10.91.128.106 |
| teamcity-21518918-1789538360-61-n9cpu4-geo-0003 | | 10.91.48.116 |
| teamcity-21518918-1789538360-61-n9cpu4-geo-0004 | | 10.91.98.23 |
| teamcity-21518918-1789538360-61-n9cpu4-geo-0005 | | 10.91.128.32 |
| teamcity-21518918-1789538360-61-n9cpu4-geo-0006 | | 10.91.48.114 |
| teamcity-21518918-1789538360-61-n9cpu4-geo-0007 | | 10.91.97.72 |
| teamcity-21518918-1789538360-61-n9cpu4-geo-0008 | | 10.91.128.109 |
| teamcity-21518918-1789538360-61-n9cpu4-geo-0009 | | 10.91.48.115 |

Parameters:
- arch=amd64
- cloud=gce
- coverageBuild=false
- cpu=4
- diskCount=0
- encrypted=false
- metamorphicDRPC=true
- metamorphicWriteBuffering=true
- runtimeAssertionsBuild=true
Help

See: [roachtest README](https://github.com/cockroachdb/cockroach/blob/master/pkg/cmd/roachtest/README.md)

See: [How To Investigate \(internal\)](https://cockroachlabs.atlassian.net/l/c/SSSBr8c7)

See: [Grafana](https://go.crdb.dev/roachtest-grafana/teamcity-21518918/unoptimized-query-oracle-disable-rules-half-seed-multi-region/1789554256186/1789557658536)

See: [Datadog Logs](https://us5.datadoghq.com/logs?query=service%3Aroachtest+%40cluster%3Ateamcity-21518918-1789538360-61-n9cpu4-geo&from_ts=1789554256186&to_ts=1789557658536&live=false&storage=flex_tier)

Same failure on other branches

- #171476 roachtest: unoptimized-query-oracle/disable-rules=half/seed-multi-region failed [B-runtime-assertions-enabled C-bug O-roachtest O-robot O-rsg S-3-erroneous-edge-case T-sql-queries branch-release-24.3]

[Improve this report!](https://github.com/cockroachdb/cockroach/tree/master/pkg/cmd/bazci/githubpost/issues)

Jira issue: CRDB-68451

Start with the failure reported at query_comparison_util.go:501 and inspect the run_1 artifacts and logs for unoptimized-query-oracle/disable-rules=half/seed-multi-region. Read the roachtest README and compare the related failure in #171476; done means identifying and fixing the cause of the unhandled op distribute error, with the roachtest no longer failing.

Written by the indexing model from the issue text.