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Update SQL_FEATURE_PLAN.md

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chrislu committed 2025-09-04 23:19:07 -07:00
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SQL_FEATURE_PLAN.md
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@@ -158,20 +158,23 @@ HAVING avg_response > 1000;
```
SQL Query Flow:
1. Parse SQL 2. Plan & Optimize 3. Execute Query
┌─────────────┐ ┌──────────────┐ ┌─────────────────┐ ┌──────────────┐
│ Client │ │ SQL Parser │ │ Query Planner │ │ Execution │
│ (CLI/HTTP) │──→ │ PostgreSQL │──→ │ & Optimizer │──→ │ Engine │
│ │ │ (Custom) │ │ │ │ │
└─────────────┘ └──────────────┘ └─────────────────┘ └──────────────┘
│ │
▼ │
┌─────────────────────────────────────────────────┐│
│ Schema Catalog ││
│ • Namespace → Database mapping ││
│ • Topic → Table mapping ││
│ • Schema version management ││
└─────────────────────────────────────────────────┘│
│ Schema Lookup │ Data Access
▼ ▼
┌─────────────────────────────────────────────────────────────┐
│ Schema Catalog │
│ • Namespace → Database mapping │
│ • Topic → Table mapping │
│ • Schema version management │
└─────────────────────────────────────────────────────────────┘
│
│ Metadata
▼
┌─────────────────────────────────────────────────────────────────────────────┐
│ MQ Storage Layer │