[GitHub] [iceberg] RussellSpitzer commented on issue #2341: spark-procedures Metadata management expire_snapshots is not worked

[GitBox <gi...@apache.org>]

RussellSpitzer commented on issue #2341:
URL: https://github.com/apache/iceberg/issues/2341#issuecomment-801118492


   Unfortunately, because we use a parser extension, the procedures do not allow arbitrary expressions  to be passed to them. This is why "now()" is throwing an error.
   
   Currently we support only constants and stringMaps,
   
   https://github.com/apache/iceberg/blob/master/spark3-extensions/src/main/antlr/org.apache.spark.sql.catalyst.parser.extensions/IcebergSqlExtensions.g4#L113-L116


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