| From: | Alexey Kryuchkov <alexey(dot)kruchkov(at)gmail(dot)com> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Proposed fix for Bug #15259 (invalid empty array returned by intarray "&" operator) |
| Date: | 2018-07-02 17:09:27 |
| Message-ID: | CAN85JcYphDLYt4CpMDLZjjNVqGDrFJ5eS3YF=wLAhFoDQuBsyg@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
The attached patch fixes Bug #15259 [1] in the intarray module, making the
'&' array intersection operator return proper zero-dimensional empty arrays
instead of one-dimensional, zero-length "empty" arrays.
In [2] this problem was addressed by changing the behaviour of
construct_[md_]array(), but the intarray module does not use these
functions. The patch I propose contains the relevant fixes to the
intarray module, along with regression tests.
[1]:
https://www.postgresql.org/message-id/153053285112.13258.434620894305716755%40wrigleys.postgresql.org
[2]: https://www.postgresql.org/message-id/20570.1506198383@sss.pgh.pa.us
Best regards,
Alexey Kryuchkov
| Attachment | Content-Type | Size |
|---|---|---|
| intarray-correct-empty-array-dimensions-15259.patch | text/x-patch | 1.8 KB |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Peter Geoghegan | 2018-07-02 17:43:30 | Re: Making all nbtree entries unique by having heap TIDs participate in comparisons |
| Previous Message | Isaac Morland | 2018-07-02 17:06:28 | Re: psql \df option for procedures |