update for database provider specific migrations

fix issues with live radar

SharedLibraryCore/Migrations/MySql/20191225202141_SetCaseSensitiveCoallationForAliasNameMySQL.cs

@@ -0,0 +1,24 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace SharedLibraryCore.Migrations.MySql
+{
+    public partial class SetCaseSensitiveCoallationForAliasNameMySQL : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            if (migrationBuilder.ActiveProvider == "Pomelo.EntityFrameworkCore.MySql")
+            {
+                // this prevents duplicate aliases from being added by changing it to case sensitive collation
+                migrationBuilder.Sql(@"ALTER TABLE `EFAlias` MODIFY
+                                `Name` VARCHAR(24) 
+                                CHARACTER SET utf8
+                                COLLATE utf8_bin;");
+            };
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+
+        }
+    }
+}