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fix(session_search): restore same-session context when message ids are interleaved

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Replaces global id +/- 1 context lookup with CTE-based same-session
neighbor queries. When multiple sessions write concurrently, id adjacency
does not imply session adjacency — the old query missed real neighbors.

Co-authored-by: Junass1 <ysfalweshcan@gmail.com>
This commit is contained in:
Junass1 2026-04-20 05:09:38 -07:00 • committed by Teknium
parent 00192d51f1
commit aebf32229b
2 changed files with 50 additions and 4 deletions
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35
hermes_state.py
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@ -1249,10 +1249,37 @@ class SessionDB:
try:
with self._lock:
ctx_cursor = self._conn.execute(
"""SELECT role, content FROM messages
WHERE session_id = ? AND id >= ? - 1 AND id <= ? + 1
ORDER BY id""",
(match["session_id"], match["id"], match["id"]),
"""WITH target AS (
SELECT session_id, timestamp, id
FROM messages
WHERE id = ?
)
SELECT role, content
FROM (
SELECT m.id, m.timestamp, m.role, m.content
FROM messages m
JOIN target t ON t.session_id = m.session_id
WHERE (m.timestamp < t.timestamp)
OR (m.timestamp = t.timestamp AND m.id < t.id)
ORDER BY m.timestamp DESC, m.id DESC
LIMIT 1
)
UNION ALL
SELECT role, content
FROM messages
WHERE id = ?
UNION ALL
SELECT role, content
FROM (
SELECT m.id, m.timestamp, m.role, m.content
FROM messages m
JOIN target t ON t.session_id = m.session_id
WHERE (m.timestamp > t.timestamp)
OR (m.timestamp = t.timestamp AND m.id > t.id)
ORDER BY m.timestamp ASC, m.id ASC
LIMIT 1
)""",
(match["id"], match["id"]),
)
context_msgs = [
{"role": r["role"], "content": (r["content"] or "")[:200]}