Fix and clarify comments on replacement selection.
These were modified by the patch to only use replacement selection for the
first run in an external sort.
Branch
------
REL9_6_STABLE
Details
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http://git.postgresql.org/pg/commitdiff/18ae680632b5c7a1550a768f1a4dc8e31b08215d
Modified Files
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src/backend/utils/sort/tuplesort.c | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)
