andreacavalli
/
CavalliumDBEngine
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Use rocksdb .keyExists

This commit is contained in:
Andrea Cavalli 2023-11-27 22:20:39 +01:00
parent fe0256dbf9
commit 361e2f04f6
1 changed files with 1 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
src/main/java/it/cavallium/dbengine/database/disk/AbstractRocksDBColumn.java
View File

@ -323,29 +323,8 @@ public sealed abstract class AbstractRocksDBColumn<T extends RocksDB> implements
try {
ensureOpen();
ensureOwned(readOptions);
int size = RocksDB.NOT_FOUND;
byte[] keyBytes = LLUtils.asArray(key);
Holder<byte[]> data = new Holder<>();
boolean mayExistHit = false;
if (db.keyMayExist(cfh, readOptions.getUnsafe(), keyBytes, data)) {
mayExistHit = true;
if (data.getValue() != null) {
size = data.getValue().length;
} else {
size = db.get(cfh, readOptions.getUnsafe(), keyBytes, NO_DATA);
}
}
boolean found = size != RocksDB.NOT_FOUND;
if (found) {
readValueFoundWithBloomSimpleBufferSize.record(size);
} else {
if (mayExistHit) {
readValueNotFoundWithMayExistBloomBufferSize.record(0);
} else {
readValueNotFoundWithBloomBufferSize.record(0);
}
}
return found;
return db.keyExists(cfh, readOptions.getUnsafe(), keyBytes);
} finally {
closeLock.unlockRead(closeReadLock);
}