Struct PartitionedRead 

pub struct PartitionedRead<'a, V> { /* private fields */ }

Read operations for partitioned tables.

Provides read-only access to partitioned data without the ability to modify.

Implementations

impl<'a, V> PartitionedRead<'a, V>

pub fn new(table: &'a PartitionedTable<V>, txn: &'a ReadTransaction) -> Self

Creates a new read handle.

pub fn table(&self) -> &PartitionedTable<V>

Gets the table reference.

pub fn collect_all_segments( &self, key: &[u8], ) -> Result<HashMap<u16, Vec<(SegmentInfo, Option<Vec<u8>>)>>>

Collects all segments across all shards for a given base key.

This method iterates through all shards and collects all segments that belong to the specified base key.

Arguments

• key - The key to search for

Returns

HashMap where key is shard ID and value is vector of (segment_info, segment_data) tuples

pub fn enumerate_all_segments( &self, key: &[u8], ) -> Result<HashMap<u16, Vec<(u16, Vec<u8>)>>>

Enumerates all segments for a given base key across all shards.

This method returns segment data in a simplified format for easier consumption by callers.

Arguments

• key - The key to search for

Returns

HashMap where key is shard ID and value is vector of (segment_id, segment_data) tuples

pub fn read_segment_data( &self, segment_info: &SegmentInfo, ) -> Result<Option<(SegmentInfo, Vec<u8>)>>

Reads data for a specific segment.

If segment_info already contains data, it’s returned directly. Otherwise, the data is read from the database.

Arguments

• segment_info - Information about the segment to read

Returns

Option containing (segment_info, segment_data) or None if segment doesn’t exist