deleteSync method
Deletes key. Deleting a missing key is allowed.
Inside a transaction the delete is buffered and applied at commit.
Implementation
void deleteSync(Uint8List key) {
_checkWritable();
_checkOpen();
if (_txOps != null) {
_record(WalOp.delete(key));
return;
}
_wal.appendDeleteSync(key);
_memtable.putTombstone(key);
_afterWrite();
}