diff options
Diffstat (limited to 'cmds/statsd/src/HashableDimensionKey.h')
| -rw-r--r-- | cmds/statsd/src/HashableDimensionKey.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/cmds/statsd/src/HashableDimensionKey.h b/cmds/statsd/src/HashableDimensionKey.h index 33a502497746..bd011005a301 100644 --- a/cmds/statsd/src/HashableDimensionKey.h +++ b/cmds/statsd/src/HashableDimensionKey.h @@ -154,6 +154,18 @@ bool filterValues(const std::vector<Matcher>& matcherFields, const std::vector<F HashableDimensionKey* output); /** + * Creating HashableDimensionKeys from State Primary Keys in FieldValues. + * + * This function may make modifications to the Field if the matcher has Position=FIRST,LAST or ALL + * in it. This is because: for example, when we create dimension from last uid in attribution chain, + * In one event, uid 1000 is at position 5 and it's the last + * In another event, uid 1000 is at position 6, and it's the last + * these 2 events should be mapped to the same dimension. So we will remove the original position + * from the dimension key for the uid field (by applying 0x80 bit mask). + */ +bool filterPrimaryKey(const std::vector<FieldValue>& values, HashableDimensionKey* output); + +/** * Filter the values from FieldValues using the matchers. * * In contrast to the above function, this function will not do any modification to the original |