# HG changeset patch
# User Timo Sirainen <timo.sirainen@dovecot.fi>
# Date 1505211831 -10800
# Node ID 65df17ce8844c097e4a4d9a829ae468e51faec17
# Parent  5f7b8aa18c274cd54edfcce5e0a69428ee20fa5e
cassandra: Disable prepared statements with protocol v3 and older

diff -r 5f7b8aa18c27 -r 65df17ce8844 src/lib-sql/driver-cassandra.c
--- a/src/lib-sql/driver-cassandra.c	Tue Aug 22 14:35:11 2017 +0300
+++ b/src/lib-sql/driver-cassandra.c	Tue Sep 12 13:23:51 2017 +0300
@@ -675,6 +675,13 @@
 	} T_END;
 	cass_log_set_level(db->log_level);
 
+	if (db->protocol_version > 0 && db->protocol_version < 4) {
+		/* binding with column indexes requires v4 */
+		db->api.v.prepared_statement_init = NULL;
+		db->api.v.prepared_statement_deinit = NULL;
+		db->api.v.statement_init_prepared = NULL;
+	}
+
 	db->timestamp_gen = cass_timestamp_gen_monotonic_new();
 	db->cluster = cass_cluster_new();
 	cass_cluster_set_timestamp_gen(db->cluster, db->timestamp_gen);