From d653f550e28e3acfe6a17afbdcdfa8b6d36c726b Mon Sep 17 00:00:00 2001
From: jussisaurio <jussi.saurio@gmail.com>
Date: Sun, 25 Aug 2024 10:43:52 +0300
Subject: [PATCH] Don't do any I/O if top level operator is Nothing

---
 core/translate/optimizer.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/core/translate/optimizer.rs b/core/translate/optimizer.rs
index 4cf598cf9..4859e6df8 100644
--- a/core/translate/optimizer.rs
+++ b/core/translate/optimizer.rs
@@ -16,7 +16,13 @@ pub fn optimize_plan(mut select_plan: Plan) -> Result<Plan> {
         &mut select_plan.root_operator,
         &select_plan.referenced_tables,
     )?;
-    eliminate_constants(&mut select_plan.root_operator)?;
+    let viable_plan = eliminate_constants(&mut select_plan.root_operator)?;
+    if !viable_plan {
+        return Ok(Plan {
+            root_operator: Operator::Nothing,
+            referenced_tables: vec![],
+        });
+    }
     use_indexes(
         &mut select_plan.root_operator,
         &select_plan.referenced_tables,