From 056c29aaa240a0270f6457259a4244a639db3433 Mon Sep 17 00:00:00 2001
From: Marco Neumann <marco@crepererum.net>
Date: Mon, 3 May 2021 17:09:51 +0200
Subject: [PATCH] feat: add a way to retrieve timestamp range from parquet
 chunk

---
 parquet_file/src/chunk.rs | 6 ++++++
 parquet_file/src/table.rs | 5 +++++
 2 files changed, 11 insertions(+)

diff --git a/parquet_file/src/chunk.rs b/parquet_file/src/chunk.rs
index 73145e431f..37074f5c5c 100644
--- a/parquet_file/src/chunk.rs
+++ b/parquet_file/src/chunk.rs
@@ -146,6 +146,12 @@ impl Chunk {
         Ok(table.path())
     }
 
+    /// Return Schema for the specified table / columns
+    pub fn timestamp_range(&self, table_name: &str) -> Result<Option<TimestampRange>> {
+        let table = self.find_table(table_name)?;
+        Ok(table.timestamp_range())
+    }
+
     // Return all tables of this chunk whose timestamp overlaps with the give one
     pub fn table_names(
         &self,
diff --git a/parquet_file/src/table.rs b/parquet_file/src/table.rs
index 5da0887ddf..2bd5828ea9 100644
--- a/parquet_file/src/table.rs
+++ b/parquet_file/src/table.rs
@@ -96,6 +96,11 @@ impl Table {
         })
     }
 
+    /// Return timestamp range of this table
+    pub fn timestamp_range(&self) -> Option<TimestampRange> {
+        self.timestamp_range
+    }
+
     // Check if 2 time ranges overlap
     pub fn matches_predicate(&self, timestamp_range: &Option<TimestampRange>) -> bool {
         match (self.timestamp_range, timestamp_range) {