Merge pull request #1021 from aidanharan/freeze-sql-for-instrumentation

Freeze the SQL sent to instrumentation

Author: aidanharan

CHANGELOG.md

@@ -1,3 +1,7 @@
+## Unreleased
+
+- [#1021](https://github.com/rails-sqlserver/activerecord-sqlserver-adapter/pull/1021) Freeze the SQL sent to instrumentation.
+
 ## v7.0.0.0
 
 [Full changelog](https://github.com/rails-sqlserver/activerecord-sqlserver-adapter/compare/v7.0.0.0.rc1...v7.0.0.0)

lib/active_record/connection_adapters/sqlserver/database_statements.rb

@@ -360,7 +360,7 @@ def sp_executesql_sql(sql, types, params, name)
             sql = "EXEC sp_executesql #{quote(sql)}"
             sql += ", #{types}, #{params}" unless params.empty?
           end
-          sql
+          sql.freeze
         end
 
         def raw_connection_do(sql)