parquet::file::metadataType Alias ParquetColumnIndex
Source pub type ParquetColumnIndex = Vec<Vec<Index>>;
Expand description
Index
for each row group of each column.
column_index[row_group_number][column_number]
holds the
Index
corresponding to column column_number
of row group
row_group_number
.
For example column_index[2][3]
holds the Index
for the forth
column in the third row group of the parquet file.
struct ParquetColumnIndex { }