| 程序包 | 说明 |
|---|---|
| org.apache.flink.table.planner.plan.metadata |
| 限定符和类型 | 字段和说明 |
|---|---|
static org.apache.calcite.rel.metadata.MetadataDef<FlinkMetadata.ColumnOriginNullCount> |
FlinkMetadata.ColumnOriginNullCount.DEF |
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