From 404135a16a3e53bd5a5950855daaa04a2c3a4d37 Mon Sep 17 00:00:00 2001
From: 1445043649 <>
Date: Sun, 10 May 2026 23:03:52 +0800
Subject: [PATCH] feat(config): default database backend to postgres
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config.example.yaml database 段：postgres 成为活跃默认（postgres_url=\$DATABASE_URL），
SQLite 改为注释掉的 fallback 块（offline dev 用）。bump config_version 9→10。

为什么默认改 postgres：Stage 0+ 已要求 ALTER 4 张表加 workspace_id；
SQLite 加列后再迁 PG 是返工。Stage 0 没有生产数据，迁移阻力最小。

Stage 0 PR2 T2.1.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 config.example.yaml | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/config.example.yaml b/config.example.yaml
index 6f3fb148..c3801ec7 100644
--- a/config.example.yaml
+++ b/config.example.yaml
@@ -15,7 +15,7 @@
 # ============================================================================
 # Bump this number when the config schema changes.
 # Run `make config-upgrade` to merge new fields into your local config.yaml.
-config_version: 9
+config_version: 10
 
 # ============================================================================
 # Logging
@@ -878,16 +878,19 @@ skill_evolution:
 # NOTE: When both `checkpointer` and `database` are configured,
 # `checkpointer` takes precedence for LangGraph state persistence.
 # If you use `database`, you can remove the `checkpointer` section.
+# Stage 0+ default is postgres (parity with production, room for future RLS).
+# Set DATABASE_URL in .env. SQLite is preserved as an offline-dev fallback —
+# uncomment the SQLite block below and comment out the Postgres block to use it.
+#
+# Postgres (default):
+database:
+  backend: postgres
+  postgres_url: $DATABASE_URL
+
+# SQLite fallback (offline dev):
 # database:
 #   backend: sqlite
 #   sqlite_dir: .deer-flow/data
-#
-# database:
-#   backend: postgres
-#   postgres_url: $DATABASE_URL
-database:
-  backend: sqlite
-  sqlite_dir: .deer-flow/data
 
 # ============================================================================
 # Run Events Configuration