// here is where the channels whose first update in either direction occurred after
// `last_seen_timestamp` are added to the selection
let newer_oldest_directional_updates = client.query("
- SELECT DISTINCT ON (short_channel_id) *
- FROM (
- SELECT DISTINCT ON (short_channel_id, direction) blob_signed
- FROM channel_updates
- WHERE short_channel_id = any($1)
- ORDER BY seen ASC, short_channel_id ASC, direction ASC
- ) AS directional_last_seens
- ORDER BY short_channel_id ASC, seen DESC
- ", &[&channel_ids]).await.unwrap();
+ SELECT DISTINCT ON (short_channel_id) *
+ FROM (
+ SELECT DISTINCT ON (short_channel_id, direction) short_channel_id, seen
+ FROM channel_updates
+ WHERE short_channel_id = any($1)
+ ORDER BY short_channel_id ASC, direction ASC, seen ASC
+ ) AS directional_last_seens
+ ORDER BY short_channel_id ASC, seen DESC
+ ", &[&channel_ids]).await.unwrap();
for current_row in newer_oldest_directional_updates {
- let blob: Vec<u8> = current_row.get("blob_signed");
- let mut readable = Cursor::new(blob);
- let unsigned_update = ChannelUpdate::read(&mut readable).unwrap().contents;
- let scid = unsigned_update.short_channel_id;
+ let scid: i64 = current_row.get("short_channel_id");
let current_seen_timestamp_object: SystemTime = current_row.get("seen");
let current_seen_timestamp: u32 = current_seen_timestamp_object.duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs() as u32;
if current_seen_timestamp > last_sync_timestamp {
// the newer of the two oldest seen directional updates came after last sync timestamp
- let current_channel_delta = delta_set.entry(scid).or_insert(ChannelDelta::default());
+ let current_channel_delta = delta_set.entry(scid as u64).or_insert(ChannelDelta::default());
// first time a channel was seen in both directions
(*current_channel_delta).first_bidirectional_updates_seen = Some(current_seen_timestamp);
}
let read_only_graph = network_graph.read_only();
let older_latest_directional_updates = client.query("
- SELECT DISTINCT ON (short_channel_id) *
- FROM (
- SELECT DISTINCT ON (short_channel_id, direction) *
- FROM channel_updates
- WHERE short_channel_id = any($1)
- ORDER BY short_channel_id ASC, direction ASC, seen DESC
- ) AS directional_last_seens
- ORDER BY short_channel_id ASC, seen ASC
- ", &[&channel_ids]).await.unwrap();
+ SELECT DISTINCT ON (short_channel_id) *
+ FROM (
+ SELECT DISTINCT ON (short_channel_id, direction) short_channel_id, seen
+ FROM channel_updates
+ WHERE short_channel_id = any($1)
+ ORDER BY short_channel_id ASC, direction ASC, seen DESC
+ ) AS directional_last_seens
+ ORDER BY short_channel_id ASC, seen ASC
+ ", &[&channel_ids]).await.unwrap();
for current_row in older_latest_directional_updates {
- let blob: Vec<u8> = current_row.get("blob_signed");
- let mut readable = Cursor::new(blob);
- let unsigned_update = ChannelUpdate::read(&mut readable).unwrap().contents;
- let scid = unsigned_update.short_channel_id;
+ let scid: i64 = current_row.get("short_channel_id");
let current_seen_timestamp_object: SystemTime = current_row.get("seen");
let current_seen_timestamp: u32 = current_seen_timestamp_object.duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs() as u32;
if current_seen_timestamp <= reminder_threshold_timestamp {
// annotate this channel as requiring that reminders be sent to the client
- let current_channel_delta = delta_set.entry(scid).or_insert(ChannelDelta::default());
+ let current_channel_delta = delta_set.entry(scid as u64).or_insert(ChannelDelta::default());
// way might be able to get away with not using this
(*current_channel_delta).requires_reminder = true;
- if let Some(current_channel_info) = read_only_graph.channel(scid) {
+ if let Some(current_channel_info) = read_only_graph.channel(scid as u64) {
if current_channel_info.one_to_two.is_none() || current_channel_info.two_to_one.is_none() {
// we don't send reminders if we don't have bidirectional update data
continue;
// get the latest channel update in each direction prior to last_sync_timestamp, provided
// there was an update in either direction that happened after the last sync (to avoid
// collecting too many reference updates)
- let reference_rows = client.query("SELECT DISTINCT ON (short_channel_id, direction) id, direction, blob_signed FROM channel_updates WHERE seen < $1 AND short_channel_id IN (SELECT short_channel_id FROM channel_updates WHERE seen >= $1 GROUP BY short_channel_id) ORDER BY short_channel_id ASC, direction ASC, seen DESC", &[&last_sync_timestamp_object]).await.unwrap();
+ let reference_rows = client.query("
+ SELECT DISTINCT ON (short_channel_id, direction) id, direction, blob_signed
+ FROM channel_updates
+ WHERE seen < $1 AND short_channel_id IN (
+ SELECT short_channel_id
+ FROM channel_updates
+ WHERE seen >= $1
+ GROUP BY short_channel_id
+ )
+ ORDER BY short_channel_id ASC, direction ASC, seen DESC
+ ", &[&last_sync_timestamp_object]).await.unwrap();
println!("Fetched reference rows ({}): {:?}", reference_rows.len(), start.elapsed());
intermediate_update_prefix = "DISTINCT ON (short_channel_id, direction)";
}
- let query_string = format!("SELECT {} id, direction, blob_signed, seen FROM channel_updates WHERE seen >= $1 ORDER BY short_channel_id ASC, direction ASC, seen DESC", intermediate_update_prefix);
+ let query_string = format!("
+ SELECT {} id, direction, blob_signed, seen
+ FROM channel_updates
+ WHERE seen >= $1
+ ORDER BY short_channel_id ASC, direction ASC, seen DESC
+ ", intermediate_update_prefix);
let intermediate_updates = client.query(&query_string, &[&last_sync_timestamp_object]).await.unwrap();
println!("Fetched intermediate rows ({}): {:?}", intermediate_updates.len(), start.elapsed());
projects / rapid-gossip-sync-server / blobdiff