ceeae77e7d
Swap the SQLite backing store for petalbrain Postgres + pgvector, modeled on vault-mcp. All second-brain relational tables now live in the `second_brain` schema (owned by the lovebug role); embeddings are written to the shared public.embeddings table. Locked design decisions (per Travis): - DB: existing petalbrain Postgres, second_brain schema, lovebug role. - Connection: containerized homelab-postgres:5432, plain psycopg_pool (min=1/max=10), no PgBouncer. - ORM stays SQLAlchemy; int autoincrement PKs + naive UTC DateTime. - Embeddings: reuse shared public.embeddings keyed by (source_schema='second_brain', source_table='extractions', source_id, model='nomic-embed-text'). Summaries only for this round. - Pipeline: chunk_text → Ollama nomic-embed-text → delete-before-insert upsert, with graceful degradation (no DB / no Ollama → log + skip). - Alembic stands up second-brain's own schema; public.embeddings stays out-of-band. - File-based wiki compiler is unchanged. No SQLite data import — starting clean. This commit is the scaffolding only; `alembic upgrade head` and a smoke test of the embedding path are the next checkpoint.
28 lines
632 B
Mako
28 lines
632 B
Mako
"""${message}
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Revision ID: ${up_revision}
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Revises: ${down_revision | comma,n}
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Create Date: ${create_date}
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"""
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from __future__ import annotations
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from collections.abc import Sequence
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from alembic import op
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import sqlalchemy as sa
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${imports if imports else ""}
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revision: str = ${repr(up_revision)}
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down_revision: str | Sequence[str] | None = ${repr(down_revision)}
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branch_labels: str | Sequence[str] | None = ${repr(branch_labels)}
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depends_on: str | Sequence[str] | None = ${repr(depends_on)}
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def upgrade() -> None:
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${upgrades if upgrades else "pass"}
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def downgrade() -> None:
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${downgrades if downgrades else "pass"}
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