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Different IDs getting conflicts

#ecto#ecto_sql
princemaple

princemaple

Different IDs getting conflicts

Ok this is… more than weird

image
image1058×496 59.1 KB

It’s also consistent during insert_all with conflicts. I’m trying to back fill some missing data from backup, but can’t because the db thinks they are already there…

I can’t have 20+ uuids with conflicts, right? That’d be too luck. I checked they are totally different from what’s coming back from the db. Repo.all(from x in X, where: x.id in ^my_ids) I get these 20+ results with totally different ids, but consistent!

23 comments
#ecto#ecto_sql
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Marked As Solved

sevenseacat

sevenseacat

Author of Ash Framework

Actually yeah I’ve seen weird behaviour like this with a corrupted index after an upgrade. Rebuilding indexes fixed it for me.

3
Post #19

Also Liked

jswanner

jswanner

@princemaple,

odd question, but just making sure…

Is id the primary key field on the schema?

2
Post #7
FlyingNoodle

FlyingNoodle

I have had some funky behaviour like this after a pg upgrade. I fixed it by running a vacuum.

2
Post #16
princemaple

princemaple

Thanks! I think these are the answers (vacuum / rebuild indices). I worked around by setting new IDs (because the things had this problem were not referenced elsewhere as fk, so it’s safe to do so) and I’m not sure if I will be able to confirm it’s the proper fix.

I indeed upgraded the db recently.

2
Post #20
princemaple

princemaple

Yup. The screenshot is a remote iex. v() simply refers to the previous return value.

1
Post #4
garrison

garrison

From experience (and I’m sure any programmer will corroborate): bugs like this are virtually always something really stupid that you overlooked. We have all been there. But whatever it is, you’re the only one with the access to narrow it down.

Trying to reproduce in psql is a good way to rule some stuff out.

1
Post #12

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