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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-01-12 17:04:54 +0000 |
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| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-01-12 17:04:54 +0000 |
| commit | d83235415bc22b486180071db0d52c3df8ddc186 (patch) | |
| tree | 1af64aefba8e01a5d1cab777b376752a7bfab46b /src/backend/utils/adt/xml.c | |
| parent | fc568b9d8f6b30d0a5573b73c719e23fa0a6a979 (diff) | |
| download | postgresql-d83235415bc22b486180071db0d52c3df8ddc186.tar.gz postgresql-d83235415bc22b486180071db0d52c3df8ddc186.zip | |
Add some notes about the basic mathematical laws that the system presumes
hold true for operators in a btree operator family. This is mostly to
clarify my own thinking about what the planner can assume for optimization
purposes. (blowing dust off an old abstract-algebra textbook...)
Diffstat (limited to 'src/backend/utils/adt/xml.c')
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