made async operation when timeout is set to non zero

Author: chernser

jdbc-v2/src/main/java/com/clickhouse/jdbc/StatementImpl.java

@@ -174,7 +174,10 @@ protected ResultSetImpl executeQueryImpl(String sql, QuerySettings settings) thr
             if (queryTimeout == 0) {
                 response = connection.getClient().query(lastStatementSql, mergedSettings).get();
             } else {
-                response = connection.getClient().query(lastStatementSql, mergedSettings).get(queryTimeout, TimeUnit.SECONDS);
+                // we need to perform async operation to support timeout.
+                response = connection.getClient().query(lastStatementSql, mergedSettings
+                                .setOption(ClientConfigProperties.ASYNC_OPERATIONS.getKey(), true))
+                        .get(queryTimeout, TimeUnit.SECONDS);
             }
 
             if (response.getFormat().isText()) {

jdbc-v2/src/test/java/com/clickhouse/jdbc/PreparedStatementTest.java

@@ -570,9 +570,7 @@ void testSelectFromArray() throws Exception {
     @Test(groups = {"integration"})
     void testExecuteQueryTimeout() throws Exception {
         final String sql = "SELECT sum(reinterpretAsUInt64(MD5(toString(number)))) FROM system.numbers LIMIT 1000000";
-        Properties config = new Properties();
-        config.setProperty(ClientConfigProperties.ASYNC_OPERATIONS.getKey(), "true");
-        try (Connection conn = getJdbcConnection(config);
+        try (Connection conn = getJdbcConnection();
              PreparedStatement stmt = conn.prepareStatement(sql)) {
             stmt.setQueryTimeout(1);
             assertThrows(SQLException.class, stmt::executeQuery);