[PARQUET-1881] How to enable sorted array flag while writing a column

• Type: Task
• Status: Resolved
• Priority: Trivial
• Resolution: Not A Bug
• Component/s: parquet-avro, parquet-cpp, parquet-format, parquet-mr, parquet-thrift
• Labels: newbie
• Assignee: Unassigned
• Reporter: Khasim Shaik
• Created: 07/Jul/20 11:27
• Updated: 04/Apr/21 09:30
• Resolved: 04/Apr/21 09:30

Description

I want to understand how can we enable the flag "sortedArray" information in metadata while writing a row group or column

I am exploring parquet.thrift to understand more about metadata,

I observed a field in metadata which is related to below struct in parquet.thrift

I am wondering how to set these fields from parquet while writing a column or rowgroup

struct SortingColumn

{ /** The column index (in this row group) **/ 1: required i32 column_idx /** If true, indicates this column is sorted in descending order. **/ 2: required bool descending /** If true, nulls will come before non-null values, otherwise, * nulls go at the end. */ 3: required bool nulls_first }