RegularExpressionProtection policy reg ex optimizations.

[amitsatishnerka]

i am using the below regular expression policy

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<RegularExpressionProtection async="false" continueOnError="false" enabled="true" name="Regular-Expression-Protection">
    <DisplayName>Regular Expression Protection</DisplayName>
    <Properties/>
    <IgnoreUnresolvedVariables>false</IgnoreUnresolvedVariables>
    <URIPath>
        <Pattern>[\s]*((delete)|(exec)|(drop\s*table)|(insert)|(shutdown)|(update )|(\bor\b))</Pattern>
    </URIPath>
    
     <JSONPayload>
        <JSONPath>
            <Expression>$.</Expression>
            <Pattern>[\s]*((delete)|(exec)|(drop\s*table)|(insert)|(shutdown)|(update )|(\bor\b))</Pattern>
        </JSONPath>
    </JSONPayload>
    <Source>request</Source>
</RegularExpressionProtection>

In this i am using Pattern "*" as wild char search. in Apigee anti pattern it is suggested to use Reluctant quantifiers like "*?". However the reluctant quantifiers take even more time than greedy quantifiers like "*".

Can you suggest an optimized quantifier which will take less time to process than "*".

Best regards,

Amit