pub fn read_properties(
dir: &Path,
stem: &str,
) -> Result<Vec<RecordBatch>, DataFusionError>Expand description
Read properties/<stem>.parquet for the project at dir, discovering its
(dynamic) schema from the file. Returns an empty Vec when the file is
absent — so a caller decoding rows sees zero pre-existing property rows.
Production reads go through the staged-batch read-through in writer
(#792); the node-hydration path (nodes(p), #1024) also reads through it.
§Errors
Propagates Parquet / Arrow errors encountered while reading.