yittg commented on issue #4515: URL: https://github.com/apache/iceberg/issues/4515#issuecomment-1094462606
@openinx , actually it happens in calcite rel converter. Only pure literal tuples can be converted to LogicalValues node, otherwise it will be converted multiple LogicalProject -> LogicalUnion nodes. FYR: https://github.com/apache/calcite/blob/32babcb90aa5940bdd75760021abab6459a9cca4/core/src/main/java/org/apache/calcite/sql2rel/SqlToRelConverter.java#L4472-L4475 https://github.com/apache/calcite/blob/32babcb90aa5940bdd75760021abab6459a9cca4/core/src/main/java/org/apache/calcite/sql2rel/SqlToRelConverter.java#L1733-L1741 -- 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]
