firebird/firebird-mirror
firebird/firebird-mirror
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10,582 Commits 56 Branches 76 Tags 287 MiB
d20ee8b414
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3 Commits

Author SHA1 Message Date
arnobrinkman
8d69efa666 use standard memcpy / memmove functions and fix a bug with large-key index 2003-12-28 13:42:45 +00:00
robocop
bc4e1d94ac constness fun 2003-12-03 08:44:28 +00:00
arnobrinkman
9ebf93b7b9 Enhanced Index Structure. 
1) NULLs on top when sorting on ASC index, DESC stays the same.
2) Support for larger index lengths, can be up to 1/4 page size.
3) Store record-number on non-leafpages for faster lookup in many duplicates.
4) Jump-nodes for faster key-lookup in index on larger page-sizes.
5) Segment selectivity calculation added.
 2003-12-01 10:25:41 +00:00