Postgres MCP Pro (crystaldba)
DATABASES · https://github.com/crystaldba/postgres-mcp
Exact configuration: /opt/uvbin/postgres-mcp with env DATABASE_URI
0.3.0 fails to start with mcp 2.x (FastMCP was renamed); installed with mcp<2, the version it was released against.
Advertised tools (9): list_schemas list_objects get_object_details explain_query analyze_workload_indexes analyze_query_indexes analyze_db_health get_top_queries execute_sql
Each cell lists every attempt: ✓ pass, ✗ fail, other codes are timeouts or excluded attempts (hover for the reason). Click any attempt for its full, redacted transcript (JSON lines).
| task | Claude Code · Sonnet 5.5 | Codex CLI · GPT-5.6 Terra |
|---|---|---|
| db-list-tables core | ✓✓ | ✓✓ |
| db-describe core | ✓✓ | ✓✓ |
| db-count core | ✓✓ | ✓✓ |
| db-filter core | ✓✓ | ✓✓ |
| db-aggregate core | ✓✓ | ✓✓ |
| db-top core | ✓✓ | ✓✓ |
| db-join core | ✓✓ | ✓✓ |
| db-nulls core | ✓✓ | ✓✓ |
| db-three-way core | ✓✓ | ✓✓ |
| db-group-top core | ✓✓ | ✓✓ |
| db-date-range core | ✓✓ | ✓✓ |
| db-distinct core | ✗✓✗✓✗ | ✓✓ |
| db-reconcile core | ✓✓ | ✓✓ |
| db-discover core | ✓✓ | ✓✓ |
| db-missing-table core | ✓✓ | ✓✓ |
| db-unicode core | ✓✓ | ✓✓ |
| db-large-result core | ✓✓ | ✓✓ |
| db-write extended | ✓✓ | ✓✓ |