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| author | David Rowley <drowley@postgresql.org> | 2023-04-20 23:51:38 +1200 |
|---|---|---|
| committer | David Rowley <drowley@postgresql.org> | 2023-04-20 23:51:38 +1200 |
| commit | 0d0aeb04c1277edb0733cbf5bf4243c47a439015 (patch) | |
| tree | be1b87ed4c76972e58447963dfabbd8cf9ae71f1 /src/backend/executor/nodeProjectSet.c | |
| parent | c1cc4e688b60090f194017c6e15e330a725fba3e (diff) | |
| download | postgresql-0d0aeb04c1277edb0733cbf5bf4243c47a439015.tar.gz postgresql-0d0aeb04c1277edb0733cbf5bf4243c47a439015.zip | |
Doc: clarify NULLS NOT DISTINCT use in unique indexes
indexes-unique.html mentioned nothing about the availability of NULLS NOT
DISTINCT to modify the NULLs-are-not-equal behavior of unique indexes.
Add this to the synopsis and clarify what it does regarding NULLs.
Author: David Gilman, David Rowley
Reviewed-by: Corey Huinker
Discussion: https://postgr.es/m/CALBH9DDr3NLqzWop1z5uZE-M5G_GYUuAeHFHQeyzFbNd8W0d=Q@mail.gmail.com
Backpatch-through: 15, where NULLS NOT DISTINCT was added
Diffstat (limited to 'src/backend/executor/nodeProjectSet.c')
0 files changed, 0 insertions, 0 deletions