Improve sorting speed by pre-extracting the first sort-key column of

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each tuple, as per my proposal of several days ago.  Also, clean up
sort memory management by keeping all working data in a separate memory
context, and refine the handling of low-memory conditions.

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Tom Lane

2006-02-26 22:58:12 +00:00

parent e1f06d8057

commit 909ca1407c

2 changed files with 608 additions and 410 deletions

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src/backend/utils/sort/tuplesort.c

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