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Prefer using iterator put_current instead of a get put method

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This commit is contained in:
Clément Renault
2020-10-30 11:13:45 +01:00
parent e63fdf2b22
commit a30206a665
1 changed files with 16 additions and 8 deletions
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24
src/update/index_documents/mod.rs
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@@ -108,13 +108,17 @@ fn merge_into_lmdb_database(
},
WriteMethod::GetMergePut => {
while let Some((k, v)) = in_iter.next()? {
match database.get::<_, ByteSlice, ByteSlice>(wtxn, k)? {
Some(old_val) => {
let mut iter = database.prefix_iter_mut::<_, ByteSlice, ByteSlice>(wtxn, k)?;
match iter.next().transpose()? {
Some((key, old_val)) if key == k => {
let vals = vec![Cow::Borrowed(old_val), Cow::Borrowed(v)];
let val = merge(k, &vals).expect("merge failed");
database.put::<_, ByteSlice, ByteSlice>(wtxn, k, &val)?
iter.put_current(k, &val)?;
},
_ => {
drop(iter);
database.put::<_, ByteSlice, ByteSlice>(wtxn, k, v)?;
},
None => database.put::<_, ByteSlice, ByteSlice>(wtxn, k, v)?,
}
}
},
@@ -145,13 +149,17 @@ fn write_into_lmdb_database(
},
WriteMethod::GetMergePut => {
while let Some((k, v)) = reader.next()? {
match database.get::<_, ByteSlice, ByteSlice>(wtxn, k)? {
Some(old_val) => {
let mut iter = database.prefix_iter_mut::<_, ByteSlice, ByteSlice>(wtxn, k)?;
match iter.next().transpose()? {
Some((key, old_val)) if key == k => {
let vals = vec![Cow::Borrowed(old_val), Cow::Borrowed(v)];
let val = merge(k, &vals).expect("merge failed");
database.put::<_, ByteSlice, ByteSlice>(wtxn, k, &val)?
iter.put_current(k, &val)?;
},
_ => {
drop(iter);
database.put::<_, ByteSlice, ByteSlice>(wtxn, k, v)?;
},
None => database.put::<_, ByteSlice, ByteSlice>(wtxn, k, v)?,
}
}
}