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| author | Noah Misch <noah@leadboat.com> | 2023-10-14 16:33:51 -0700 |
|---|---|---|
| committer | Noah Misch <noah@leadboat.com> | 2023-10-14 16:33:54 -0700 |
| commit | 6fd1dbdb21cb02ea2d307cc8fd931e6a218bfa64 (patch) | |
| tree | d6ae6807f1c58b1bc4389f6bc104450a050629a8 /src/backend/executor/nodeRecursiveunion.c | |
| parent | 3895e9153e29af66b038cf17756b4307fa967718 (diff) | |
Dissociate btequalimage() from interval_ops, ending its deduplication.
Under interval_ops, some equal values are distinguishable. One such
pair is '24:00:00' and '1 day'. With that being so, btequalimage()
breaches the documented contract for the "equalimage" btree support
function. This can cause incorrect results from index-only scans.
Users should REINDEX any btree indexes having interval-type columns.
After updating, pg_amcheck will report an error for almost all such
indexes. This fix makes interval_ops simply omit the support function,
like numeric_ops does. Back-pack to v13, where btequalimage() first
appeared. In back branches, for the benefit of old catalog content,
btequalimage() code will return false for type "interval". Going
forward, back-branch initdb will include the catalog change.
Reviewed by Peter Geoghegan.
Discussion: https://postgr.es/m/20231011013317.22.nmisch@google.com
Diffstat (limited to 'src/backend/executor/nodeRecursiveunion.c')
0 files changed, 0 insertions, 0 deletions