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| author | Bruce Momjian <bruce@momjian.us> | 2019-12-27 14:49:08 -0500 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2019-12-27 14:49:08 -0500 |
| commit | 6f53e66bec7087b615cd5a5e94d10a83d301ba10 (patch) | |
| tree | 1fdaed0ab6e1e89e37a44af698ae83353296d0fa /src/backend/executor/nodeMergejoin.c | |
| parent | df189f353f8f2077287de7e66a467db2593290e1 (diff) | |
doc: add examples of creative use of unique expression indexes
Unique expression indexes can constrain data in creative ways, so show
two examples.
Reported-by: Tuomas Leikola
Discussion: https://postgr.es/m/156760275564.1127.12321702656456074572@wrigleys.postgresql.org
Backpatch-through: 9.4
Diffstat (limited to 'src/backend/executor/nodeMergejoin.c')
0 files changed, 0 insertions, 0 deletions