klsince commented on pull request #7208: URL: https://github.com/apache/pinot/pull/7208#issuecomment-887106377
As context: JsonPath assumes json array is deserialized into a Java Collection ([code snippet](https://github.com/json-path/JsonPath/blob/master/json-path/src/main/java/com/jayway/jsonpath/spi/json/AbstractJsonProvider.java#L32)). But Pinot explicitly converts Collection to Object[] ([code snippet](https://github.com/apache/pinot/blob/master/pinot-spi/src/main/java/org/apache/pinot/spi/data/readers/BaseRecordExtractor.java#L47)) before calling those json transformations, thus leading to issues like: either no values were extracted with ingestion transformation like `$.commits[*].sha` or throwing PathNotFoundException with sth like `$.commits[0].sha`. The logic to covert Collection to Object[] is necessary, as Object[] is assumed by some transformations, used for MV values on both ingestion and query path. Thus this RP is trying to extend JsonPath to be able to work with Object[] properly. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
