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| author | Tom Lane | 2009-07-29 20:56:21 +0000 |
|---|---|---|
| committer | Tom Lane | 2009-07-29 20:56:21 +0000 |
| commit | 576b0fac11e853810ac12ca47e9aa3a215ff7983 (patch) | |
| tree | fa653959a972cf8a37990b1c4b8a67d2a5fff381 /src/backend/tcop/postgres.c | |
| parent | 2ffae8405d8d2578af0625350c46bf4919455452 (diff) | |
Support deferrable uniqueness constraints.
The current implementation fires an AFTER ROW trigger for each tuple that
looks like it might be non-unique according to the index contents at the
time of insertion. This works well as long as there aren't many conflicts,
but won't scale to massive unique-key reassignments. Improving that case
is a TODO item.
Dean Rasheed
Diffstat (limited to 'src/backend/tcop/postgres.c')
0 files changed, 0 insertions, 0 deletions