load_partition_metadata

micromegas::analytics::lakehouse::partition_metadata

Function load_partition_metadata 

Source 
pub fn load_partition_metadata(
    pool: &Pool<Postgres>,
    file_path: &str,
    cache: Option<&MetadataCache>,
) -> impl Future<Output = Result<Arc<ParquetMetaData>, Error>>
Expand description

Load partition metadata by file path from the dedicated metadata table

Dispatches to appropriate parser based on partition_format_version:

  • Version 1: Arrow 56.0 format, uses legacy parser with num_rows injection (requires additional query)
  • Version 2: Arrow 57.0 format, uses standard parser (fast path, no join)

If a cache is provided, checks it first and stores results after loading.