[ https://issues.apache.org/jira/browse/IGNITE-4085?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vladimir Ozerov updated IGNITE-4085: ------------------------------------ Summary: c (was: Binary objets: Compare fields of well-known types without deserialization.) > c > - > > Key: IGNITE-4085 > URL: https://issues.apache.org/jira/browse/IGNITE-4085 > Project: Ignite > Issue Type: Task > Components: binary > Affects Versions: 1.7 > Reporter: Vladimir Ozerov > Labels: performance > Fix For: 1.8 > > > It is not efficient to use {{BinaryField.value}} directly when comparing > binary objects because it leads to "materialization" of the field. > Instead, when well-known type is met, we should simply find field start in > both objects and perform usual byte-by-byte comparison. > E.g., for string it will be: > 1) Find position > 2) Compare lengths (readInt) > 3) Compare contents byte-by-byte. > The same goes for other types: > 1) Primitive arrays > 2) UUID > 3) Data/TimeStamp. > Please ensure that byte-by-byte comparison is performed efficiently, e.g. > that we compare bigger chunks (e.g. 8 bytes at once). -- This message was sent by Atlassian JIRA (v6.3.4#6332)