fixed scale conversion in time64

Author: chernser

jdbc-v2/src/main/java/com/clickhouse/jdbc/internal/JdbcUtils.java

@@ -1,5 +1,6 @@
 package com.clickhouse.jdbc.internal;
 
+import com.clickhouse.client.api.DataTypeUtils;
 import com.clickhouse.client.api.data_formats.internal.BinaryStreamReader;
 import com.clickhouse.client.api.data_formats.internal.InetAddressConverter;
 import com.clickhouse.data.ClickHouseColumn;
@@ -294,10 +295,10 @@ public static Object convert(Object value, Class<?> type, ClickHouseColumn colum
             return new Array(column, arrayValue.getArrayOfObjects());
         }
 
-        return convertObject(value, type);
+        return convertObject(value, type, column);
     }
 
-    public static Object convertObject(Object value, Class<?> type) throws SQLException {
+    public static Object convertObject(Object value, Class<?> type, ClickHouseColumn column) throws SQLException {
         if (value == null || type == null) {
             return value;
         }
@@ -343,7 +344,8 @@ public static Object convertObject(Object value, Class<?> type) throws SQLExcept
             } else if (type == Time.class && value instanceof Integer) { // Time
                 return new Time((Integer) value * 1000L);
             } else if (type == Time.class && value instanceof Long) { // Time64
-                return new Time((Long) value / 1_000_000);
+                Instant instant = DataTypeUtils.instantFromTime64Integer(column.getScale(), (Long) value);
+                return new Time(instant.getEpochSecond() * 1000L + instant.getNano() / 1_000_000);
             } else if (type == Inet4Address.class && value instanceof Inet6Address) {
                 // Convert Inet6Address to Inet4Address
                 return InetAddressConverter.convertToIpv4((InetAddress) value);

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

@@ -659,7 +659,7 @@ public void testTimeTypes() throws SQLException {
                     assertThrows(SQLException.class, () -> rs.getTimestamp(col));
                     assertThrows(SQLException.class, () -> rs.getObject(col, Date.class));
                     assertThrows(SQLException.class, () -> rs.getObject(col, Timestamp.class));
-                    // LocalTime requires ZoneId and date part
+                    // LocalTime conversion is not supported
                     assertThrows(SQLException.class, () -> rs.getObject(col, LocalTime.class));
                 }
                 assertFalse(rs.next());