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Non Leading Wild Card Literal Substring

Search based on a \"*some sub-string here*\" Functions much like the Java String.indexOf method. Singe term searches will match '*term' and 'term*' but not '*term*'. This is because leading wildcards are very inefficient.  Special characters are included.  This seems to be very similar to the literal contains, but makes use of the reverse index.

Literal

All special characters are taken literally.  Since we usually normalize we can search on a string with colons, parentheses and other special characters using this search. 

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