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Avoid using text_to_cstring() in levenshtein functions.

author Robert Haas <rhaas@postgresql.org>

2010年7月29日 20:11:48 +0000 (20:11 +0000)

committer Robert Haas <rhaas@postgresql.org>

2010年7月29日 20:11:48 +0000 (20:11 +0000)

commit 980341b3c20b6b13cb1c06a501b0b49303f768e6

tree f794947f2b9beb5a1deddb7bb4a0bd0109538446 tree

parent aab353a60b95aadc00f81da0c6d99bde696c4b75 commit | diff

Avoid using text_to_cstring() in levenshtein functions.

Operating directly on the underlying varlena saves palloc and memcpy
overhead, which testing shows to be significant.

Extracted from a larger patch by Alexander Korotkov.

contrib/fuzzystrmatch/fuzzystrmatch.c diff | blob | blame | history

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