Dawid Wysakowicz created FLINK-33083: ----------------------------------------
Summary: SupportsReadingMetadata is not applied when loading a CompiledPlan Key: FLINK-33083 URL: https://issues.apache.org/jira/browse/FLINK-33083 Project: Flink Issue Type: Bug Components: Table SQL / Planner Affects Versions: 1.17.1, 1.16.2 Reporter: Dawid Wysakowicz If a few conditions are met, we can not apply ReadingMetadata interface: # source overwrites: {code} @Override public boolean supportsMetadataProjection() { return false; } {code} # source does not implement {{SupportsProjectionPushDown}} # table has metadata columns e.g. {code} CREATE TABLE src ( physical_name STRING, physical_sum INT, timestamp TIMESTAMP_LTZ(3) NOT NULL METADATA VIRTUAL ) {code} # we query the table {{SELECT * FROM src}} It fails with: {code} Caused by: java.lang.IllegalArgumentException: Row arity: 1, but serializer arity: 2 at org.apache.flink.table.runtime.typeutils.RowDataSerializer.copy(RowDataSerializer.java:124) {code} The reason is {{SupportsReadingMetadataSpec}} is created only in the {{PushProjectIntoTableSourceScanRule}}, but the rule is not applied when 1 & 2 -- This message was sent by Atlassian Jira (v8.20.10#820010)