1[NOTE] 2.Filter chaining 3===================================================================== 4It is important to note that while filters can be chained, each is linked by an 5implied logical *AND* operation. If you want to match from one of several 6different patterns, as with a logical *OR* operation, you can do so with the 7<<filtertype_pattern,pattern>> filtertype using _regex_ as the <<fe_kind,kind>>. 8 9This example shows how to select multiple indices based on them beginning with 10either `alpha-`, `bravo-`, or `charlie-`: 11 12[source,yaml] 13------------- 14 filters: 15 - filtertype: pattern 16 kind: regex 17 value: '^(alpha-|bravo-|charlie-).*$' 18------------- 19 20Explaining all of the different ways in which regular expressions can be used 21is outside the scope of this document, but hopefully this gives you some idea 22of how a regular expression pattern can be used when a logical *OR* is desired. 23===================================================================== 24