Files
ThothII/harness/tht/memory/solved.py
T

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Python

"""Coppie domanda->SQL risolte (kind `solved_question`) — memoria attiva, parte B.
Una sessione finalizzata produce UN record nel vectordb: l'embedding e' la domanda
riscritta (content), il metadata porta l'SQL finale e le tabelle promosse. Vive
nel semantic store workspace-scoped, nel gruppo logico `memory` con kind dedicato; si
consulta nelle fasi F4/F6/F7 con `tht memory solved-search` come materiale di
riferimento (exemplar), NON come decisione da ri-applicare.
Scrittura: SOLO upsert one-row stile D11 (`index_solved_question`). Questi record
non passano MAI da `VectorStore.sync`/`RestVectorWriter.sync`: il passo
delete-stale del sync, ricevendo il solo record corrente, cancellerebbe le coppie
delle altre sessioni. Per lo stesso motivo l'hash di dedup e' calcolato qui
(domanda+SQL) e non dal solo content come fa il sync.
"""
from dataclasses import dataclass
from tht.phase import effective_decisions
from tht.ports.vector import VectorWriteRecord
from tht.session.models import SessionSnapshot
from tht.vectorstore.records import VectorRecord
from tht.vectorstore.store import content_hash
from .core import question_context
SOLVED_KIND = "solved_question"
def _solved_question_record(
*, session_id: str, question: str, sql: str, tables: list[str]
) -> VectorRecord:
return VectorRecord(
id=f"solved:{session_id}",
kind=SOLVED_KIND,
ref=session_id,
title=question[:120],
content=question,
metadata={
"question": question,
"sql": sql,
"tables": tables,
"session_id": session_id,
},
)
def _solved_hash(record: VectorRecord) -> str:
# La domanda e' l'embedding (content); l'SQL vive solo nel metadata. L'hash
# copre entrambi: un re-finalize che cambia solo l'SQL aggiorna la riga.
return content_hash(record.content + "\n" + str(record.metadata.get("sql", "")))
def _save_solved_question(record: VectorRecord, *, store, embedder) -> int:
"""Upsert one-row della coppia domanda->SQL via writer key (stesso pattern di
save_one_memory, spec D11): hash dedup client-side, embedding solo se domanda
o SQL sono cambiati. Ritorna il
numero di righe upsertate (0 = invariata)."""
new_hash = _solved_hash(record)
existing = store.existing_hashes("memory", [SOLVED_KIND])
if existing.get(record.id) == new_hash:
return 0
embedding = embedder.embed_documents([record.content])[0]
return store.upsert(
"memory",
[VectorWriteRecord(record=record, embedding=embedding, content_hash=new_hash)],
)
class SolvedIndexError(Exception):
"""La sessione non ha (ancora) gli artefatti per il record solved_question."""
def _build_solved_snapshot(
snapshot: SessionSnapshot,
promoted_tables: set[str] | None,
) -> VectorRecord:
sql = snapshot.artifacts.get("sql_final")
if sql is None:
raise SolvedIndexError("sql_final.sql assente")
decisions = effective_decisions(snapshot)
if not any(d.type == "sql_approved" for d in decisions):
raise SolvedIndexError("decisione sql_approved assente")
return _solved_question_record(
session_id=snapshot.manifest.id,
question=question_context(decisions, snapshot.manifest),
sql=sql.strip(), tables=sorted(promoted_tables or set()),
)
def index_solved_question(
snapshot: SessionSnapshot,
promoted_tables: set[str] | None,
*,
store,
embedder,
) -> int:
"""Index the finalized question through Memory's one-row, idempotent policy."""
return _save_solved_question(
_build_solved_snapshot(snapshot, promoted_tables),
store=store,
embedder=embedder,
)
@dataclass(frozen=True)
class SolvedIndexOutcome:
upserted: int | None
error: str | None = None
def index_solved_question_best_effort(
snapshot: SessionSnapshot,
promoted_tables: set[str] | None,
*,
store_factory,
embedder_factory,
) -> SolvedIndexOutcome:
"""Attempt derived indexing without turning it into workflow success state."""
try:
upserted = index_solved_question(
snapshot,
promoted_tables,
store=store_factory(),
embedder=embedder_factory(),
)
except Exception as error:
return SolvedIndexOutcome(upserted=None, error=str(error))
return SolvedIndexOutcome(upserted=upserted)
def search_solved_questions(question: str, *, searcher, embedder, top: int = 3) -> list[dict]:
"""Return solved-question exemplars in semantic-search rank order."""
hits = searcher.search(
embedder.embed_query(question),
top_n=top,
kinds=[SOLVED_KIND],
)
return [
{
"session_id": hit.metadata.get("session_id", hit.ref),
"question": hit.metadata.get("question", hit.content),
"sql": hit.metadata.get("sql", ""),
"tables": hit.metadata.get("tables", []),
"score": round(hit.similarity, 4),
}
for hit in hits
]