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perf: fast-path count for unfiltered /api/packets (skip packets_v scan)

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
Kpa-clawbot
2026-03-27 01:29:22 -07:00
co-authored by Copilot
parent b2e6c8105b
commit 842b49e8c4
1 changed files with 8 additions and 3 deletions
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cmd/server/db.go
+8 -3
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@@ -175,9 +175,14 @@ func (db *DB) QueryPackets(q PacketQuery) (*PacketResult, error) {
}
var total int
countSQL := fmt.Sprintf("SELECT COUNT(*) FROM packets_v %s", w)
if err := db.conn.QueryRow(countSQL, args...).Scan(&total); err != nil {
return nil, err
if len(where) == 0 {
// Fast path: no filters, use direct table count
db.conn.QueryRow("SELECT COUNT(*) FROM observations").Scan(&total)
} else {
countSQL := fmt.Sprintf("SELECT COUNT(*) FROM packets_v %s", w)
if err := db.conn.QueryRow(countSQL, args...).Scan(&total); err != nil {
return nil, err
}
}
querySQL := fmt.Sprintf("SELECT id, raw_hex, timestamp, observer_id, observer_name, direction, snr, rssi, score, hash, route_type, payload_type, payload_version, path_json, decoded_json, created_at FROM packets_v %s ORDER BY timestamp %s LIMIT ? OFFSET ?", w, q.Order)