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This commit is contained in:
Bruce Momjian 1999-12-29 10:12:23 +00:00
parent e3cec20ccd
commit b21ee21455
1 changed files with 3 additions and 3 deletions
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6
src/backend/commands/vacuum.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.131 1999/12/16 22:19:42 wieck Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.132 1999/12/29 10:12:23 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -2145,8 +2145,8 @@ vc_tidreapped(ItemPointer itemptr, VPageList vpl)
*
* We compute the column min, max, null and non-null counts.
* Plus we attempt to find the count of the value that occurs most
* frequently in each column
* These figures are used to compute the selectivity of the column
* frequently in each column. These figures are used to compute
* the selectivity of the column.
*
* We use a three-bucked cache to get the most frequent item
* The 'guess' buckets count hits. A cache miss causes guess1