From 38d046cff55385af6fcffc08a30269f080a3b9e6 Mon Sep 17 00:00:00 2001
From: Shay Rojansky <roji@roji.org>
Date: Wed, 23 Nov 2022 11:27:36 +0100
Subject: [PATCH] Case-insensitive comparison for store types

---
 src/EFCore.Relational/Query/QuerySqlGenerator.cs | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/EFCore.Relational/Query/QuerySqlGenerator.cs b/src/EFCore.Relational/Query/QuerySqlGenerator.cs
index 2d953aa6d13..7dd6cbf143d 100644
--- a/src/EFCore.Relational/Query/QuerySqlGenerator.cs
+++ b/src/EFCore.Relational/Query/QuerySqlGenerator.cs
@@ -602,11 +602,14 @@ protected override Expression VisitSqlParameter(SqlParameterExpression sqlParame
         // data twice.
         // Note that if the type mapping differs, we do send the same data twice (e.g. the same string may be sent once as Unicode, once as
         // non-Unicode).
-        var parameter = _relationalCommandBuilder.Parameters.FirstOrDefault(p =>
-            p.InvariantName == parameterName
-            && p is TypeMappedRelationalParameter typeMappedRelationalParameter
-            && typeMappedRelationalParameter.RelationalTypeMapping.StoreType == sqlParameterExpression.TypeMapping!.StoreType
-            && typeMappedRelationalParameter.RelationalTypeMapping.Converter == sqlParameterExpression.TypeMapping!.Converter);
+        var parameter = _relationalCommandBuilder.Parameters.FirstOrDefault(
+            p =>
+                p.InvariantName == parameterName
+                && p is TypeMappedRelationalParameter typeMappedRelationalParameter
+                && string.Equals(
+                    typeMappedRelationalParameter.RelationalTypeMapping.StoreType, sqlParameterExpression.TypeMapping!.StoreType,
+                    StringComparison.OrdinalIgnoreCase)
+                && typeMappedRelationalParameter.RelationalTypeMapping.Converter == sqlParameterExpression.TypeMapping!.Converter);
 
         if (parameter is null)
         {