Обсуждение: pgsql: Update tuplesort.c comments for memory mangement improvements.

Update tuplesort.c comments for memory mangement improvements.

I'm committing these changes separately so that it's clear what is
Peter's original work versus what I changed.  This is a followup to
commit 0011c0091e886b874e485a46ff2c94222ffbf550, and these changes
are all by me.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/c27033ff7c17b5100d02c454a0eebb95ec7b91cc

Modified Files
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src/backend/utils/sort/tuplesort.c | 26 ++++++++++++++++++++------
1 file changed, 20 insertions(+), 6 deletions(-)