diff -ur interbase/interbase.c interbase-/interbase.c
--- interbase/interbase.c	Tue Oct  5 05:03:44 2004
+++ interbase-/interbase.c	Tue Oct  5 04:58:21 2004
@@ -159,6 +159,17 @@
 	}
 }
 
+static void
+ib_error_check_warn()
+{
+	short code = isc_sqlcode(isc_status);
+	if (code != 0) {
+		char buf[1024];
+		isc_sql_interprete(code, buf, 1024);
+		rb_warn("%s(%d)", buf, code);
+	}
+}
+
 static XSQLDA*
 sqlda_alloc(cols)
 	long cols;
@@ -223,10 +234,10 @@
 {
 	if (transact) {
 		isc_commit_transaction(isc_status, &transact);
-		ib_error_check();
+		ib_error_check_warn();
 	}
 	isc_detach_database(isc_status, &conn->db);
-	ib_error_check();
+	ib_error_check_warn();
 	conn->db = 0;
 	db_num--;
 	if (ibconn_list == 0 || ibconn_list == conn)
@@ -824,10 +835,10 @@
 {
 	if (curs->open) {
 		isc_dsql_free_statement(isc_status, &curs->stmt, DSQL_close);
-		ib_error_check();
+		ib_error_check_warn();
 	}
 	isc_dsql_free_statement(isc_status, &curs->stmt, DSQL_drop);
-	ib_error_check();
+	ib_error_check_warn();
 	curs->stmt = 0;
 }