Rename keys
The rename keys processing rule changes the name of a specified key.
Configuration parameters
| Parameter | Description | Default |
|---|---|---|
| Source key | Required. The key whose name to change. | none |
| Destination key | Required. The new name for your key. If a key with this name already exists, the rule changes the name of Source key to this name, which overwrites the original value of Destination key. | none |
| Match case checkbox | If selected, the regular expression is case-sensitive. | Not selected |
| Regex engine | Required. The engine to parse your regular expression. Accepted values: GNU, Oniguruma, PCRE2, POSIX, TRE. | PCRE2 |
| Regex mode checkbox | Whether the values of the source key and destination key are regular expressions. If selected, Source key is treated as a regular expression and Destination key is treated as a substitution pattern. | Not selected |
| Comment | A custom note or description of the rule's function. This text is displayed next to the rule's name in the Actions list in the processing rules interface. | none |
Example
Using the rename keys rule lets you update the keys that store your telemetry data and retain the values of those keys.
For example, given the following sample website log data:
{"timestamp":"2023-03-28T09:08:41.64283645Z","user_id":3,"page_id":30,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:42.643343109Z","user_id":4,"page_id":10,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:48.643600498Z","user_id":1,"page_id":50,"action":"click"}
{"timestamp":"2023-03-28T09:08:50.643773688Z","user_id":5,"page_id":40,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:51.643932272Z","user_id":1,"page_id":30,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:56.644080944Z","user_id":2,"page_id":40,"action":"click"}
{"timestamp":"2023-03-28T09:09:03.64425954Z","user_id":3,"page_id":30,"action":"click"}
{"timestamp":"2023-03-28T09:09:03.644317046Z","user_id":1,"page_id":20,"action":"view"}
{"timestamp":"2023-03-28T09:09:10.64447719Z","user_id":2,"page_id":50,"action":"purchase"}
{"timestamp":"2023-03-28T09:09:17.644810963Z","user_id":2,"page_id":10,"action":"view"}
{"timestamp":"2023-03-28T09:09:20.644994805Z","user_id":1,"page_id":50,"action":"view"}A processing rule with the Source key value user_id and the
Destination key value account returns the following result:
{"timestamp":"2023-03-28T09:08:41.64283645Z","account":3,"page_id":30,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:42.643343109Z","account":4,"page_id":10,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:48.643600498Z","account":1,"page_id":50,"action":"click"}
{"timestamp":"2023-03-28T09:08:50.643773688Z","account":5,"page_id":40,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:51.643932272Z","account":1,"page_id":30,"action":"purchase"}
{"timestamp":"2023-03-28T09:08:56.644080944Z","account":2,"page_id":40,"action":"click"}
{"timestamp":"2023-03-28T09:09:03.64425954Z","account":3,"page_id":30,"action":"click"}
{"timestamp":"2023-03-28T09:09:03.644317046Z","account":1,"page_id":20,"action":"view"}
{"timestamp":"2023-03-28T09:09:10.64447719Z","account":2,"page_id":50,"action":"purchase"}
{"timestamp":"2023-03-28T09:09:17.644810963Z","account":2,"page_id":10,"action":"view"}
{"timestamp":"2023-03-28T09:09:20.644994805Z","account":1,"page_id":50,"action":"view"}This rule changed the name of each user_id key to account, but kept the original
value associated with those keys.