xiedeyantu commented on PR #4596:
URL: https://github.com/apache/calcite/pull/4596#issuecomment-3434816950

   I think I may have identified the issue. The image used in 
docker-compose.ymlis postgres:latest, and the latesttag of the PostgreSQL image 
was updated 6 hours ago (to [version 
18](https://hub.docker.com/layers/library/postgres/18/images/sha256-a6561a48c57f841ff807e429c41f72aefd5766156d9dec66fd7317f4dc4d3b3f)),
 which ultimately caused the error. Since this test code repository is at 
​​[Link1](https://github.com/zabetak/calcite-druid-dataset)​​, if @zabetak has 
time, please take a look. Thank you! The Druid test error report is at 
[​​Link2](https://github.com/apache/calcite/actions/runs/18734848974/job/53439388816?pr=4596)​​.
 
   cc @mihaibudiu 
   ```
   === Checking Failed Containers ===
   ❌ Failed containers detected:
   --- postgres (Exit Code: 1) ---
   Error: in 18+, these Docker images are configured to store database data in a
          format which is compatible with "pg_ctlcluster" (specifically, using
          major-version-specific directory names).  This better reflects how
          PostgreSQL itself works, and how upgrades are to be performed.
          See also https://github.com/docker-library/postgres/pull/1259
          Counter to that, there appears to be PostgreSQL data in:
            /var/lib/postgresql/data (unused mount/volume)
          This is usually the result of upgrading the Docker image without
          upgrading the underlying database using "pg_upgrade" (which requires 
both
          versions).
          The suggested container configuration for 18+ is to place a single 
mount
          at /var/lib/postgresql which will then place PostgreSQL data in a
          subdirectory, allowing usage of "pg_upgrade --link" without mount 
point
          boundary issues.
          See https://github.com/docker-library/postgres/issues/37 for a (long)
          discussion around this process, and suggestions for how to do so.
   ```


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