From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Tue, 12 Sep 2017 10:23:51 +0000 (+0300)
Subject: cassandra: Disable prepared statements with protocol v3 and older
X-Git-Tag: 2.3.0.rc1~1041
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4d8f538565145fd90eae48df5c4f2ed76e51ca78;p=thirdparty%2Fdovecot%2Fcore.git

cassandra: Disable prepared statements with protocol v3 and older
---

diff --git a/src/lib-sql/driver-cassandra.c b/src/lib-sql/driver-cassandra.c
index 32c78f2ba3..a87a981a51 100644
--- a/src/lib-sql/driver-cassandra.c
+++ b/src/lib-sql/driver-cassandra.c
@@ -680,6 +680,13 @@ static struct sql_db *driver_cassandra_init_v(const char *connect_string)
 	} 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);