Package io.deephaven.parquet.base

Interface RowGroupReader

public interface RowGroupReader
Provides read access to a parquet Row Group

  • Method Details

    • getColumnChunk

      @Nullable @Nullable ColumnChunkReader getColumnChunk(@NotNull @NotNull String columnName, @NotNull @NotNull List<String> path)
      Returns the accessor to a given Column Chunk
      Parameters:
      columnName - the name of the column
      path - the full column path
      Returns:
      the accessor to a given Column Chunk, or null if the column is not present in this Row Group

    • numRows

      long numRows()

    • getRowGroup

      org.apache.parquet.format.RowGroup getRowGroup()