(
&self,
_state: &dyn Session,
projection: Option<&Vec<usize>>,
_filters: &[Expr],
_limit: Option<usize>,
)
| 67 | } |
| 68 | |
| 69 | async fn scan( |
| 70 | &self, |
| 71 | _state: &dyn Session, |
| 72 | projection: Option<&Vec<usize>>, |
| 73 | _filters: &[Expr], |
| 74 | _limit: Option<usize>, |
| 75 | ) -> DFResult<Arc<dyn ExecutionPlan>> { |
| 76 | // Java uses LinkedHashMap insertion order; HashMap has none — sort for stable output. |
| 77 | let mut entries: Vec<(&String, &String)> = self.table.schema().options().iter().collect(); |
| 78 | entries.sort_by(|a, b| a.0.cmp(b.0)); |
| 79 | |
| 80 | let keys = StringArray::from_iter_values(entries.iter().map(|(k, _)| k.as_str())); |
| 81 | let values = StringArray::from_iter_values(entries.iter().map(|(_, v)| v.as_str())); |
| 82 | |
| 83 | let schema = options_schema(); |
| 84 | let batch = RecordBatch::try_new(schema.clone(), vec![Arc::new(keys), Arc::new(values)])?; |
| 85 | |
| 86 | Ok(MemorySourceConfig::try_new_exec( |
| 87 | &[vec![batch]], |
| 88 | schema, |
| 89 | projection.cloned(), |
| 90 | )?) |
| 91 | } |
| 92 | } |
nothing calls this directly
no test coverage detected