Partition mismatch error

Question

HIVE_PARTITION_SCHEMA_MISMATCH: There is a mismatch between the table and partition schemas. The types are incompatible and cannot be coerced. The column 'harsh.cornering.angle' in table 'teltonika_integration.teltonika' is declared as type 'double', but partition 'partition_0=2024/partition_1=02/partition_2=20/partition_3=12' declared column 'harsh.cornering.event' as type 'boolean'.

Please post the error message on our forum  or contact customer support  with Query Id: bc05b028-eb70-47ac-92db-55238f37f0ad

And my Athena query is : SELECT * FROM "AwsDataCatalog"."teltonika_integration"."teltonika" limit 10;

This is the error i am getting and the error seems quite irrelevant. There is no connection between these 2 columns

Answer

Hello,

Generally above error occurs when partition  schema is not compatible with table schema. I understand in error its showing two different columns but that means that you need to check both the columns at partition level mentioned in error and tabel level to verify the schema. If you find discrepancy
 then you need to update your partition schema and make sure its compatible with table schema.

It seems like you are using crawler to load the partition. If your file format is csv,josn or text file format then you can use crawler with "Update all new and existing partitions with metadata from the table" to overcome this issue.

https://repost.aws/knowledge-center/athena-hive-partition-schema-mismatch

If your file format is structured like paruqet,orc then you need to check the file again for mentioned partition and verify the schema. If it contains incompatible schema then you need to generate that file again with consistent schema to avoid this issue as incas of parquet it reference the metadat from file footer itself.

Partition mismatch error

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