# Searching for a complex string (like a UUID) returns no results

**URL:** https://community.graylog.org/t/searching-for-a-complex-string-like-a-uuid-returns-no-results/26840
**Category:** Graylog Central (peer support)
**Tags:** elastic
**Created:** [December 8, 2022, 6:23pm UTC](https://community.graylog.org/t/searching-for-a-complex-string-like-a-uuid-returns-no-results/26840 "2022-12-08T18:23:37Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![gsmith](https://sea2.discourse-cdn.com/flex016/user_avatar/community.graylog.org/gsmith/32/1222_2.png) [@gsmith](https://community.graylog.org/u/gsmith)
#### Post date: [December 9, 2022, 12:35am UTC](https://community.graylog.org/t/searching-for-a-complex-string-like-a-uuid-returns-no-results/26840/5 "2022-12-09T00:35:35Z")

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Hey @john2893

I have done something similar with UUID’s in Graylog just to see if I could do it. 😉  
Created a Regex extractor and attached it to a look up table.

 ![image](https://us1.discourse-cdn.com/flex016/uploads/graylog/original/2X/2/2ff29e1c85d89408ef4ba38f298f04cb9cab12cd.png)

 ![image](https://us1.discourse-cdn.com/flex016/uploads/graylog/original/2X/2/2b1832b0ea419a70638e288738bc8398b1bb7c69.png)

maybe a better explanation here.

> [@Converting the OID'd for streams Into Human Readable](https://community.graylog.org/t/converting-the-oidd-for-streams-into-human-readable/25480):
>
> In my Rest Access file there are stream OID’s, to display them on a Widget I needed to created a lookup table and Attached it to a pipeline. Example: Acquire the OID’s from MongoDb: \> use graylog switched to db graylog \> db.streams.find({},{"title":1,"ObjectId":1}); { "\_id" : ObjectId("000000000000000000000001"), "title" : "All messages" } { "\_id" : ObjectId("5a502736ffe8b10359166cf1"), "title" : "Firewall: Configuration Changed" } { "\_id" : ObjectId("5a5027b7ffe8b10359166d83"), "title" : "Li…

Here is the widget I created from all that.

 ![image](https://us1.discourse-cdn.com/flex016/uploads/graylog/original/2X/f/fae3607301c87a4aaa90a64034d3be835116a2f8.png)

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