[client-v2] Add new Geometry type #2678

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1. chernser

   added

   client-api-v2

   jdbc-v2jdbc-v2 issuesjdbc-v2 issues

   area:data-typedata type processing issuesdata type processing issues

   on Dec 3, 2025
2. chernser

   added the

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   issue type on Dec 3, 2025
3. linghengqian commented on Dec 17, 2025

   

   linghengqian

   on Dec 17, 2025

   Last edited by linghengqian

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   • Can I understand that the error log I saw at https://github.com/linghengqian/clickhouse-typeinfo-test is related to this issue? Do I need to create a new issue?

   [ERROR] 2025-12-17 15:03:47.935 [main] c.c.j.metadata.DatabaseMetaDataImpl - Failed to convert column data type to SQL type: {}
   java.lang.IllegalArgumentException: No enum constant com.clickhouse.data.ClickHouseDataType.Geometry
           at java.base/java.lang.Enum.valueOf(Enum.java:293)
           at com.clickhouse.data.ClickHouseDataType.valueOf(ClickHouseDataType.java:52)
           at com.clickhouse.jdbc.metadata.DatabaseMetaDataImpl.lambda$static$2(DatabaseMetaDataImpl.java:1102)
           at com.clickhouse.jdbc.internal.DetachedResultSet.createFromResultSet(DetachedResultSet.java:93)
           at com.clickhouse.jdbc.metadata.DatabaseMetaDataImpl.getTypeInfo(DatabaseMetaDataImpl.java:1082)
           at io.github.linghengqian.SimpleTest.simpleTest(SimpleTest.java:14)
4. chernser commented on Dec 17, 2025

   

   chernser

   on Dec 17, 2025

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   Good dau, @linghengqian !
   Caused by this issue. But for the problem that old client may not work with the new CH there is another #2394

   Thank you for bringing this - I will update #2394 with your scenario.

   👍React with 👍1Reacted by Hengqian Ling
5. chernser commented on Dec 18, 2025

   

   chernser

   on Dec 18, 2025

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   @linghengqian
   I've looked into your case - this message is reported because client may not know type and requires upgrade.
   In this case JDBC Driver and Client will continue to work except moments when using unknown type. So this exception is not a bug but warning that client found an unknown type.
6. linghengqian commented on Dec 18, 2025

   

   linghengqian

   on Dec 18, 2025

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   @linghengqian
   I've looked into your case - this message is reported because client may not know type and requires upgrade.
   In this case JDBC Driver and Client will continue to work except moments when using unknown type. So this exception is not a bug but warning that client found an unknown type.

   Yes, this error log won't prevent the unit tests from running; it only prints out the log under a specific logback configuration. That's why I'm asking if we need to open a new issue for this.

   But this logback configuration is really quite common.😂

   👍React with 👍1Reacted by Sergey Chernov
7. chernser commented on Dec 18, 2025

   

   chernser

   on Dec 18, 2025

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   @linghengqian
   we have another test to detect new types on HEAD and latest version of ClickHouse (just in case we missed it).
   I will fix the message to be more informative.

   👍React with 👍1Reacted by Hengqian Ling
8. chernser

   added this to the 0.9.9 milestone on Mar 18, 2026
9. chernser

   added a parent issue on Mar 18, 2026

   • [client-v2,jdbc-v2] Data Types #2796
10. chernser

    closed this as completedin #2815on May 11, 2026