9b9c5beb23
chore: enhance .gitignore and remove obsolete documentation files - Reorganize .gitignore with categorized sections for better maintainability - Add comprehensive ignore patterns for Python, Node.js, databases, logs, and build artifacts - Add project-specific ignore rules for coordinator, explorer, and deployment files - Remove outdated documentation: BITCOIN-WALLET-SETUP.md, LOCAL_ASSETS_SUMMARY.md, README-CONTAINER-DEPLOYMENT.md, README-DOMAIN-DEPLOYMENT.md ```
73 lines
2.2 KiB
Markdown
73 lines
2.2 KiB
Markdown
# AITBC Exchange - PostgreSQL Migration Complete
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## Summary
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Successfully migrated the AITBC Exchange from SQLite to PostgreSQL for better performance and scalability.
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## What Was Migrated
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- **Trades Table**: 5 historical trades
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- **Orders Table**: 4 initial orders (2 BUY, 2 SELL)
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- All data preserved with proper type conversion (REAL → NUMERIC)
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## Benefits of PostgreSQL
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1. **Better Performance**: Optimized for concurrent access
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2. **Scalability**: Handles high-volume trading
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3. **Data Integrity**: Proper NUMERIC type for financial data
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4. **Indexing**: Optimized indexes for fast queries
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5. **ACID Compliance**: Reliable transactions
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## Database Schema
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```sql
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-- Trades table with proper types
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CREATE TABLE trades (
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id SERIAL PRIMARY KEY,
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amount NUMERIC(20, 8) NOT NULL,
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price NUMERIC(20, 8) NOT NULL,
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total NUMERIC(20, 8) NOT NULL,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
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tx_hash VARCHAR(66),
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maker_address VARCHAR(66),
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taker_address VARCHAR(66)
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);
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-- Orders table with constraints
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CREATE TABLE orders (
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id SERIAL PRIMARY KEY,
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order_type VARCHAR(4) CHECK (order_type IN ('BUY', 'SELL')),
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amount NUMERIC(20, 8) NOT NULL,
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price NUMERIC(20, 8) NOT NULL,
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total NUMERIC(20, 8) NOT NULL,
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remaining NUMERIC(20, 8) NOT NULL,
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filled NUMERIC(20, 8) DEFAULT 0,
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status VARCHAR(20) CHECK (status IN ('OPEN', 'FILLED', 'CANCELLED')),
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created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
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user_address VARCHAR(66),
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tx_hash VARCHAR(66)
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);
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```
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## Connection Details
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- **Host**: localhost
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- **Port**: 5432
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- **Database**: aitbc_exchange
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- **User**: aitbc_user
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- **Password**: aitbc_password
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## Performance Indexes
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- `idx_trades_created_at`: Fast trade history queries
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- `idx_orders_type_price`: Efficient order book matching
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- `idx_orders_status`: Quick status filtering
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- `idx_orders_user`: User order history
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## Next Steps
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1. Monitor performance with real trading volume
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2. Set up database backups
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3. Consider connection pooling (PgBouncer)
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4. Add read replicas for scaling
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## Verification
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- Exchange API is running with PostgreSQL
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- All endpoints working correctly
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- Data integrity preserved
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- Real-time trading functional
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