Function parquet::file::page_index::index_reader::read_columns_indexes
source ยท pub fn read_columns_indexes<R: ChunkReader>(
reader: &R,
chunks: &[ColumnChunkMetaData],
) -> Result<Vec<Index>, ParquetError>
Expand description
Reads per-column Index
for all columns of a row group by
decoding ColumnIndex
.
Returns a vector of index[column_number]
.
Returns an empty vector if this row group does not contain a
ColumnIndex
.
See Page Index Documentation for more details.