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improvement: migrations, batch inserts

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Timo Kösters 2021-08-02 22:32:28 +02:00
parent 41dd620d74
commit 31f60ad6fd
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GPG Key ID: 356E705610F626D5
2 changed files with 53 additions and 9 deletions
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57
src/database.rs
View File

@ -735,40 +735,81 @@ impl Database {
let shortroomid = db.globals.next_count()?.to_be_bytes();
db.rooms.roomid_shortroomid.insert(&room_id, &shortroomid)?;
db.rooms.shortroomid_roomid.insert(&shortroomid, &room_id)?;
println!("Migration: 8");
}
// Update pduids db layout
for (key, v) in db.rooms.pduid_pdu.iter() {
let mut batch = db.rooms.pduid_pdu.iter().filter_map(|(key, v)| {
if !key.starts_with(b"!") {
return None;
}
let mut parts = key.splitn(2, |&b| b == 0xff);
let room_id = parts.next().unwrap();
let count = parts.next().unwrap();
let short_room_id = db.rooms.roomid_shortroomid.get(&room_id)?.unwrap();
let short_room_id = db
.rooms
.roomid_shortroomid
.get(&room_id)
.unwrap()
.expect("shortroomid should exist");
let mut new_key = short_room_id;
new_key.extend_from_slice(count);
println!("{:?}", new_key);
Some((new_key, v))
});
db.rooms.pduid_pdu.insert_batch(&mut batch)?;
for (key, _) in db.rooms.pduid_pdu.iter() {
if key.starts_with(b"!") {
db.rooms.pduid_pdu.remove(&key);
}
}
db.globals.bump_database_version(8)?;
println!("Migration: 7 -> 8 finished");
}
if db.globals.database_version()? < 9 {
// Update tokenids db layout
for (key, _) in db.rooms.tokenids.iter() {
let mut batch = db.rooms.tokenids.iter().filter_map(|(key, _)| {
if !key.starts_with(b"!") {
return None;
}
let mut parts = key.splitn(4, |&b| b == 0xff);
let room_id = parts.next().unwrap();
let word = parts.next().unwrap();
let _pdu_id_room = parts.next().unwrap();
let pdu_id_count = parts.next().unwrap();
let short_room_id = db.rooms.roomid_shortroomid.get(&room_id)?.unwrap();
let short_room_id = db
.rooms
.roomid_shortroomid
.get(&room_id)
.unwrap()
.expect("shortroomid should exist");
let mut new_key = short_room_id;
new_key.extend_from_slice(word);
new_key.push(0xff);
new_key.extend_from_slice(pdu_id_count);
println!("{:?}", new_key);
println!("old {:?}", key);
println!("new {:?}", new_key);
Some((new_key, Vec::new()))
});
db.rooms.tokenids.insert_batch(&mut batch)?;
for (key, _) in db.rooms.tokenids.iter() {
if key.starts_with(b"!") {
db.rooms.pduid_pdu.remove(&key)?;
}
}
db.globals.bump_database_version(8)?;
db.globals.bump_database_version(9)?;
println!("Migration: 7 -> 8 finished");
println!("Migration: 8 -> 9 finished");
}
panic!();

5
src/database/abstraction/sqlite.rs
View File

@ -223,7 +223,10 @@ impl Tree for SqliteTable {
let statement = Box::leak(Box::new(
guard
.prepare(&format!("SELECT key, value FROM {} ORDER BY key ASC", &self.name))
.prepare(&format!(
"SELECT key, value FROM {} ORDER BY key ASC",
&self.name
))
.unwrap(),
));