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DataLakeCatalog database is not shown by SHOW DATABASES on head #89189

@alsugiliazova

Description

@alsugiliazova

Company or project name

No response

Describe what's wrong

Database appeared on list only after use ... query.
I see that behavior only on head.

ClickHouse client version 25.11.1.512 (official build).
Connecting to localhost:9000 as user default.
Connected to ClickHouse server version 25.11.1.

Warnings:
 * Delay accounting is not enabled, OSIOWaitMicroseconds will not be gathered. You can enable it using `sudo sh -c 'echo 1 > /proc/sys/kernel/task_delayacct'` or by using sysctl.

clickhouse1 :) show databases

SHOW DATABASES

Query id: caaa8ca1-8dcb-4b3e-a091-b477b0862883

   ┌─name───────────────┐
1. │ INFORMATION_SCHEMA │
2. │ default            │
3. │ information_schema │
4. │ system             │
   └────────────────────┘

4 rows in set. Elapsed: 0.001 sec. 

clickhouse1 :) use iceberg_db_float32_76af2492_b4e0_11f0_8d1c_e0c26496f172;

USE iceberg_db_float32_76af2492_b4e0_11f0_8d1c_e0c26496f172

Query id: 2f38f507-3d11-495d-a7d2-4c290db672b6

Ok.

0 rows in set. Elapsed: 0.001 sec. 

clickhouse1 :) show databases

SHOW DATABASES

Query id: 595ab608-32d3-45db-97e1-6895c98df8d1

   ┌─name────────────────────────────────────────────────────┐
1. │ INFORMATION_SCHEMA                                      │
2. │ default                                                 │
3. │ iceberg_db_float32_76af2492_b4e0_11f0_8d1c_e0c26496f172 │
4. │ information_schema                                      │
5. │ system                                                  │
   └─────────────────────────────────────────────────────────┘

5 rows in set. Elapsed: 0.002 sec. 

Does it reproduce on the most recent release?

Yes

How to reproduce

Create DataLakeDatabase database and run SHOW DATABASES query.

Expected behavior

No response

Error message and/or stacktrace

No response

Additional context

No response

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Labels

comp-datalakeData lake table formats (Iceberg/Delta/Hudi) integration.potential bugTo be reviewed by developers and confirmed/rejected.

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