From 6859fa3160a2895bf7a6ecb0af616344e9e777bc Mon Sep 17 00:00:00 2001
From: Tilmann Singer <tils@tils.net>
Date: Tue, 21 Sep 2021 02:52:00 +0200
Subject: [PATCH] Do not attempt to coerce a value when NULL (#353)

---
 lib/blazer/adapters/athena_adapter.rb | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/blazer/adapters/athena_adapter.rb b/lib/blazer/adapters/athena_adapter.rb
index 31c118ce0..33ba6a5ef 100644
--- a/lib/blazer/adapters/athena_adapter.rb
+++ b/lib/blazer/adapters/athena_adapter.rb
@@ -62,19 +62,19 @@ def run_statement(statement, comment)
               case ct
               when "timestamp"
                 rows.each do |row|
-                  row[i] = utc.parse(row[i])
+                  row[i] &&= utc.parse(row[i])
                 end
               when "date"
                 rows.each do |row|
-                  row[i] = Date.parse(row[i])
+                  row[i] &&= Date.parse(row[i])
                 end
               when "bigint"
                 rows.each do |row|
-                  row[i] = row[i].to_i
+                  row[i] &&= row[i].to_i
                 end
               when "double"
                 rows.each do |row|
-                  row[i] = row[i].to_f
+                  row[i] &&= row[i].to_f
                 end
               end
             end