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postgres/src/backend/utils
Tom Lane cf627ab41a Further performance improvements in sorting: reduce number of comparisons
during initial run formation by keeping both current run and next-run
tuples in the same heap (yup, Knuth is smarter than I am).  And, during
merge passes, make use of available sort memory to load multiple tuples
from any one input 'tape' at a time, thereby improving locality of
access to the temp file.
1999-10-30 17:27:15 +00:00
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1998-07-26 04:31:41 +00:00