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Posted to notifications@shardingsphere.apache.org by "wangleizone (via GitHub)" <gi...@apache.org> on 2023/02/24 06:13:11 UTC

[GitHub] [shardingsphere] wangleizone opened a new issue, #24337: Using the 'like' operator to perform a fuzzy search on an encrypted column in version 5.3.0.

wangleizone opened a new issue, #24337:
URL: https://github.com/apache/shardingsphere/issues/24337

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   ### Which version of ShardingSphere did you use?
   5.3.0
   
   ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
   ShardingSphere-JDBC
   
   ### Expected behavior
   I am using the new feature in version 5.3.0, which allows encryption on a column for a LIKE fuzzy search. I am also using the CHAR_DIGEST_LIKE algorithm to generate the likeQueryColumn.
   
   But when I execute the following SQL for a fuzzy search, it throws an exception.
   
   ` select
           *
           from sla_user_service_recorde
           where user_name like CONCAT('%', #{userName}, '%')`
   
   Cause: java.sql.SQLException: Unknown exception: null
   ; uncategorized SQLException; SQL state [HY000]; error code [30000]; Unknown exception: null; nested exception is java.sql.SQLException: Unknown exception: null
   	at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:89)
   
   Caused by: java.sql.SQLException: Unknown exception: null
   	at org.apache.shardingsphere.infra.util.exception.external.sql.ShardingSphereSQLException.toSQLException(ShardingSphereSQLException.java:62)
   
   I tried to remove the 'concat' function from the SQL statement and passed '%' as a part of the string parameter, and the query worked normally.
   ` select
         *
           from sla_user_service_recorde
           where user_name like #{userName} `
   
   
   ### Reason analyze (If you can)
   And I found that when using the '=' operator in the SQL query, the 'concat' function can be used normally. It is only when using the 'like' operator with the 'concat' function that an exception is thrown. I suspect this is a bug introduced in the new 5.3.0 version.
   


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