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Merge #3608

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3608: In a settings update, check to see if the primary key actually changes before erroring out r=irevoire a=GregoryConrad

Previously, if the primary key was set and a Settings update contained a primary key, an error would be returned.
However, this error is not needed if the new PK == the current PK. This PR just checks to see if the PK actually changes before raising an error.

I came across this slight hiccup in https://github.com/GregoryConrad/mimir/issues/156#issuecomment-1484128654

Co-authored-by: Gregory Conrad <gregorysconrad@gmail.com>
This commit is contained in:
bors[bot] 2023-03-29 09:07:51 +00:00 committed by GitHub
commit 31bb61ba99
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1 changed files with 17 additions and 2 deletions
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19
milli/src/update/settings.rs
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@ -565,8 +565,12 @@ impl<'a, 't, 'u, 'i> Settings<'a, 't, 'u, 'i> {
self.index.put_primary_key(self.wtxn, primary_key)?;
Ok(())
} else {
let primary_key = self.index.primary_key(self.wtxn)?.unwrap();
Err(UserError::PrimaryKeyCannotBeChanged(primary_key.to_string()).into())
let curr_primary_key = self.index.primary_key(self.wtxn)?.unwrap().to_string();
if primary_key == &curr_primary_key {
Ok(())
} else {
Err(UserError::PrimaryKeyCannotBeChanged(curr_primary_key).into())
}
}
}
Setting::Reset => {
@ -1332,6 +1336,17 @@ mod tests {
.unwrap();
wtxn.commit().unwrap();
// Updating settings with the same primary key should do nothing
let mut wtxn = index.write_txn().unwrap();
index
.update_settings_using_wtxn(&mut wtxn, |settings| {
settings.set_primary_key(S("mykey"));
})
.unwrap();
assert_eq!(index.primary_key(&wtxn).unwrap(), Some("mykey"));
wtxn.commit().unwrap();
// Updating the settings with a different (or no) primary key causes an error
let mut wtxn = index.write_txn().unwrap();
let error = index
.update_settings_using_wtxn(&mut wtxn, |settings| {