Confluence: Search for things skipping the shipped "search engine"

Using Atlassian Confluence, and have to report on exact things, like "How many, and which pages refer to a given phrase"?
This searches through all the latest version of all the pages:

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SELECT DISTINCT    'http://confluence.example.com/confluence/pages/viewpage.action?pageId=' || contentid AS URL FROM    CONTENT INNER JOIN BODYCONTENT USING(contentid) WHERE    prevver      IS NULL    AND SPACEID  IS NOT NULL    AND PARENTID IS NOT NULL    AND REGEXP_LIKE(BODY, 'internal-webserver\d(\.example\.com)?\\public', 'i');