From 65861de06ef4bfb9bf7a728f1d03f92c2e8001c1 Mon Sep 17 00:00:00 2001
From: Azrenbeth <77782548+Azrenbeth@users.noreply.github.com>
Date: Mon, 6 Sep 2021 10:06:47 +0100
Subject: [PATCH] Stops the compressor if it will lead to more rows in the
 database (#52)

---
 src/lib.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index 053023b..a310ddd 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -334,6 +334,11 @@ pub fn run(mut config: Config) {
         compressor.stats.state_groups_changed
     );
 
+    if ratio > 1.0 {
+        println!("This compression would not remove any rows. Exiting.");
+        return;
+    }
+
     if let Some(min) = config.min_saved_rows {
         let saving = (original_summed_size - compressed_summed_size) as i32;
         if saving < min {