Concatenate binary data using ||

Author: virzak

src/EFCore.PG/Query/Internal/NpgsqlQuerySqlGenerator.cs

@@ -90,6 +90,7 @@ protected override string GetOperator(SqlBinaryExpression e)
             // string type mapping. Same for full-text search's TsVector.
             ExpressionType.Add when
                 e.Type == typeof(string) || e.Left.TypeMapping?.ClrType == typeof(string) || e.Right.TypeMapping?.ClrType == typeof(string) ||
+                e.Type == typeof(BitArray) || e.Left.TypeMapping?.ClrType == typeof(BitArray) || e.Right.TypeMapping?.ClrType == typeof(BitArray) ||
                 e.Type == typeof(NpgsqlTsVector) || e.Left.TypeMapping?.ClrType == typeof(NpgsqlTsVector) || e.Right.TypeMapping?.ClrType == typeof(NpgsqlTsVector)
                 => " || ",
             ExpressionType.And when e.Type == typeof(bool)   => " AND ",