Log Message:
-----------
Reimplement text_position and related functions to use Boyer-Moore-Horspool
searching instead of naive matching. In the worst case this has the same
O(M*N) complexity as the naive method, but the worst case is hard to hit,
and the average case is very fast, especially with longer patterns.
David Rowley
Modified Files:
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pgsql/src/backend/utils/adt:
varlena.c (r1.167 -> r1.168)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/varlena.c?r1=1.167&r2=1.168)