From: Jeroen van der Heijden <jeroen@transceptor.technology>
Date: Fri, 25 May 2018 08:11:35 +0000 (+0200)
Subject: Upd help functions
X-Git-Tag: archive/raspbian/2.0.44-1+rpi1~1^2~3^2~9^2~23
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/success//%22http:/www.example.com/cgi/success/?a=commitdiff_plain;h=32d69636a747b5ac458becf105f0a35c6017b342;p=siridb-server.git

Upd help functions
---

diff --git a/help/help_functions.md b/help/help_functions.md
index a14f2b73..52a7a2ba 100644
--- a/help/help_functions.md
+++ b/help/help_functions.md
@@ -214,7 +214,7 @@ Syntax:
 
 	filter(<operator> <value>)
 
-Returns an integer or float value depending on the series data type.
+Returns an integer, float or string value depending on the series data type.
 
 Filter is used to filter the result by values.
 
@@ -225,6 +225,9 @@ Example:
 
     # Select all positive values from 'series-001'
     select filter(> 0) from 'series-001'
+    
+    # Select all values containing 'error' and not 'unavailable
+    select filter(~'error') => filter(!~'unavailable') from 'some-log-series'
 
 
 first