pgsql: Fix bug in to_tsquery().

Fix bug in to_tsquery().

We were using memcpy() to copy to a possibly overlapping memory region,
which is a no-no. Use memmove() instead.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/d2495f272cd164ff075bee5c4ce95aed11338a36

Modified Files
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src/backend/tsearch/to_tsany.c |    7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)