lxy-9602 opened a new pull request, #8314: URL: https://github.com/apache/paimon/pull/8314
### Purpose This PR adds the shared-shredding MAP schema utilities and option validation for [PIP-43: Columnar Storage Optimization for MAP Type in Paimon](https://cwiki.apache.org/confluence/display/PAIMON/PIP-43%3A+Columnar+Storage+Optimization+for+MAP+Type+in+Paimon). This feature was originally named `extend` in earlier PIP. It is now named `shared-shredding` to better align with #7877 . The change introduces: - Field-level MAP storage layout options: - `fields.<field>.map.storage-layout` - `fields.<field>.map.shared-shredding.max-columns` - Shared-shredding MAP metadata constants and metadata round-trip utilities. - Logical-to-physical schema conversion for `MAP<STRING, T>` shared-shredding columns. - Schema validation for configured MAP storage layouts. ### Tests - `mvn -pl paimon-common -am -Pfast-build -DfailIfNoTests=false -Dtest=MapSharedShreddingUtilsTest test` - `mvn -pl paimon-core -am -Pfast-build -DfailIfNoTests=false -Dtest=CoreOptionsTest,SchemaValidationTest test` - `mvn -pl paimon-core -am -DskipTests compile` -- 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]
