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refactor: suggestions #7

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26 changes: 25 additions & 1 deletion src/catalog/manifest.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -18,10 +18,11 @@

use std::collections::HashMap;

use chrono::{DateTime, Utc};
use itertools::Itertools;
use parquet::{file::reader::FileReader, format::SortingColumn};

use super::column::Column;
use super::{column::{Column, TypedStatistics}, ManifestFile};

#[derive(
Debug,
Expand Down Expand Up @@ -58,6 +59,29 @@ pub struct File {
pub sort_order_id: Vec<SortInfo>,
}

impl File {
pub fn get_file_bounds(
&self,
partition_column: &str,
) -> (DateTime<Utc>, DateTime<Utc>) {
match self
.columns()
.iter()
.find(|col| col.name == partition_column)
.unwrap()
.stats
.as_ref()
.unwrap()
{
TypedStatistics::Int(stats) => (
DateTime::from_timestamp_millis(stats.min).unwrap(),
DateTime::from_timestamp_millis(stats.max).unwrap(),
),
_ => unreachable!(),
}
}
}

/// A manifest file composed of multiple file entries.
#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
pub struct Manifest {
Expand Down
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