Can you update your post with the full output of your query pls? In this context serialization means converting the record object to an object of the type expected by the OutputFormat which will be used to perform the write. Output is analogous to input. By default without this SerDe , Athena does not allow dots in column names. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. With this SerDe, duplicate keys are not allowed in map or struct key names. 
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Salem Salem 1 1 1 bronze badge.
These events are represented as blocks of JSON-encoded text separated by a new line. To perform this conversion, the serialize method can make use of the passed ObjectInspector to get the individual fields in the record in order to convert the record to the appropriate type. To avoid errors, the data being queried does not include duplicate keys in struct and map key names.
There is also a fork you might want to give a try hson ThinkBigAnalytics. Duplicate keys are not allowed in map or struct key names. Sign up or log in Sign up using Google. Check with linters such as jsonlint.
[Hive]JsonSerde Usage Guide
A t tachments 0 Page History. I'm resigning as a moderator from all Stack Exchange sites, effective today. I've already posted the contents of test.
The derde example demonstrates a simple approach to creating an Athena table from data with nested structures in Serdf. Email Required, but never shown. OMG, I focused so much on Hive to only now figure that your input is invalid.
The engine passes the deserialized Object representing a record and the corresponding ObjectInspector to Serde.
Note You can query data in regions other than the region where you run Athena. Jagadeesh Jagadeesh 11 2 2 bronze badges. Permalink Feb 23, Delete comments. To reduce data transfer charges, replace myregion in s3: Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.
Permalink Jan 06, Delete comments. Powered by Atlassian Confluence 6. Standard inter-region data transfer rates for Amazon S3 apply in addition to mson Athena charges. Each JSON document is listed on its own line, separated by a new line. How do we handle problem users? Can you update your post with the full output of your query pls?
Hive uses the SerDe interface for IO. Stack Overflow works best with JavaScript enabled. The Hive SerDe library is in org.
SerDe - Apache Hive - Apache Software Foundation
Improving the question-asking experience. In my test I added hive-json-serde By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Jsln of Service. This parameter takes values of type string. The other option is the Hive JsonSerDe. By using our site, you consent to cookies.
A bit hard to tell what's going on without the logs see Getting Started in case of doubt.
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