diff --git a/KUZU_COPY_DETAILED_IMPLEMENTATION_PLAN.md b/KUZU_COPY_DETAILED_IMPLEMENTATION_PLAN.md deleted file mode 100644 index 1b50c62ea..000000000 --- a/KUZU_COPY_DETAILED_IMPLEMENTATION_PLAN.md +++ /dev/null @@ -1,829 +0,0 @@ -# KuzuDB COPY Implementation - Detailed Technical Plan - -> **Reference**: This plan is based on the proven COPY approach documented in [KUZU_COPY_IMPLEMENTATION_GUIDE.md](./KUZU_COPY_IMPLEMENTATION_GUIDE.md) and deep analysis of GitNexus's 4-pass ingestion pipeline. - -## Executive Summary - -**Objective**: Replace current MERGE-based batch operations with COPY statements for 5-10x performance improvement -**Status**: ✅ COPY approach proven working in browser tests -**Strategy**: Polymorphic CSV generation with schema-aware mapping and graceful fallback - -## Deep Architecture Analysis - -### Current GitNexus Data Flow - -```mermaid -graph TD - A[Repository Files] --> B[4-Pass Pipeline] - B --> C[Pass 1: Structure] - B --> D[Pass 2: Parsing] - B --> E[Pass 3: Imports] - B --> F[Pass 4: Calls] - - C --> G[Project/Folder/File Nodes] - D --> H[Function/Class/Method Nodes] - E --> I[IMPORTS Relationships] - F --> J[CALLS Relationships] - - G --> K[KnowledgeGraph Arrays] - H --> K - I --> K - J --> K - - K --> L[Current: MERGE Batches] - K --> M[New: COPY Statements] -``` - -### Node Type Polymorphism Analysis - -**16 Node Types** with varying schemas: -- **Structural**: `Project`, `Folder`, `File`, `Package`, `Module` -- **Code Elements**: `Function`, `Class`, `Method`, `Variable`, `Interface`, `Type`, `Enum` -- **Metadata**: `Import`, `Decorator`, `CodeElement` - -**12 Relationship Types** with different connection patterns: -- **Hierarchical**: `CONTAINS`, `BELONGS_TO` -- **Behavioral**: `CALLS`, `USES`, `ACCESSES` -- **Structural**: `DEFINES`, `IMPORTS`, `IMPLEMENTS`, `EXTENDS`, `INHERITS`, `OVERRIDES`, `DECORATES` - -## Implementation Plan - -### Phase 1: CSV Generator Service - -**File**: `src/core/kuzu/csv-generator.ts` - -#### 1.1 Core CSV Generator Class - -```typescript -export class GitNexusCSVGenerator { - private static readonly CSV_ESCAPE_REGEX = /[",\r\n]/; - private static readonly QUOTE_ESCAPE_REGEX = /"/g; - - /** - * Generate CSV for nodes of specific label with schema-aware column mapping - */ - static generateNodeCSV(nodes: GraphNode[], label: NodeLabel): string { - const filteredNodes = nodes.filter(node => node.label === label); - if (filteredNodes.length === 0) return ''; - - // Get schema-defined columns for this node type - const schemaColumns = this.getSchemaColumnsForLabel(label); - const dynamicColumns = this.extractDynamicColumns(filteredNodes); - const allColumns = [...schemaColumns, ...dynamicColumns]; - - // Generate header - const header = allColumns.join(','); - - // Generate rows with proper type conversion - const rows = filteredNodes.map(node => { - return allColumns.map(col => { - const value = col === 'id' ? node.id : node.properties[col]; - return this.formatValueForCSV(value, col, label); - }).join(','); - }); - - return [header, ...rows].join('\n'); - } - - /** - * Generate CSV for relationships with polymorphic property handling - */ - static generateRelationshipCSV(relationships: GraphRelationship[], type: RelationshipType): string { - const filteredRels = relationships.filter(rel => rel.type === type); - if (filteredRels.length === 0) return ''; - - // Base columns for all relationships - const baseColumns = ['source', 'target']; - const schemaColumns = this.getSchemaColumnsForRelType(type); - const dynamicColumns = this.extractDynamicRelColumns(filteredRels); - const allColumns = [...baseColumns, ...schemaColumns, ...dynamicColumns]; - - const header = allColumns.join(','); - - const rows = filteredRels.map(rel => { - return allColumns.map(col => { - let value: any; - if (col === 'source') value = rel.source; - else if (col === 'target') value = rel.target; - else value = rel.properties[col]; - - return this.formatValueForCSV(value, col, type); - }).join(','); - }); - - return [header, ...rows].join('\n'); - } - - /** - * Schema-aware value formatting with type conversion - */ - private static formatValueForCSV(value: any, column: string, entityType: NodeLabel | RelationshipType): string { - if (value === null || value === undefined) return ''; - - // Handle arrays (convert to JSON string) - if (Array.isArray(value)) { - const arrayStr = JSON.stringify(value); - return this.escapeCSVValue(arrayStr); - } - - // Handle objects (convert to JSON string) - if (typeof value === 'object') { - const objStr = JSON.stringify(value); - return this.escapeCSVValue(objStr); - } - - // Handle booleans - if (typeof value === 'boolean') { - return value ? 'true' : 'false'; - } - - // Handle numbers - if (typeof value === 'number') { - return String(value); - } - - // Handle strings - const str = String(value); - return this.escapeCSVValue(str); - } - - /** - * Proper CSV escaping according to RFC 4180 - */ - private static escapeCSVValue(str: string): string { - if (!this.CSV_ESCAPE_REGEX.test(str)) { - return str; - } - - // Escape quotes by doubling them and wrap in quotes - const escaped = str.replace(this.QUOTE_ESCAPE_REGEX, '""'); - return `"${escaped}"`; - } - - /** - * Get schema-defined columns for node label - */ - private static getSchemaColumnsForLabel(label: NodeLabel): string[] { - const schema = NODE_TABLE_SCHEMAS[label]; - return schema ? Object.keys(schema).filter(col => col !== 'id') : []; - } - - /** - * Get schema-defined columns for relationship type - */ - private static getSchemaColumnsForRelType(type: RelationshipType): string[] { - const relDef = RELATIONSHIP_TABLE_SCHEMAS.find(def => def.name === type); - return relDef ? Object.keys(relDef.schema) : []; - } - - /** - * Extract dynamic columns not in schema (for flexibility) - */ - private static extractDynamicColumns(nodes: GraphNode[]): string[] { - const schemaColumns = new Set(this.getSchemaColumnsForLabel(nodes[0]?.label)); - const dynamicColumns = new Set(); - - nodes.forEach(node => { - Object.keys(node.properties).forEach(key => { - if (!schemaColumns.has(key)) { - dynamicColumns.add(key); - } - }); - }); - - return Array.from(dynamicColumns).sort(); - } - - /** - * Extract dynamic columns for relationships - */ - private static extractDynamicRelColumns(relationships: GraphRelationship[]): string[] { - const schemaColumns = new Set(this.getSchemaColumnsForRelType(relationships[0]?.type)); - const dynamicColumns = new Set(); - - relationships.forEach(rel => { - Object.keys(rel.properties).forEach(key => { - if (!schemaColumns.has(key)) { - dynamicColumns.add(key); - } - }); - }); - - return Array.from(dynamicColumns).sort(); - } -} -``` - -#### 1.2 Schema Integration - -**Import required schemas**: -```typescript -import { NODE_TABLE_SCHEMAS, RELATIONSHIP_TABLE_SCHEMAS } from './kuzu-schema.ts'; -import type { NodeLabel, RelationshipType } from '../graph/types.ts'; -``` - -### Phase 2: Enhanced KuzuKnowledgeGraph - -**File**: `src/core/graph/kuzu-knowledge-graph.ts` - -#### 2.1 Add COPY-based Methods - -**Insert after line 196** (current `commitNodesBatch` method): - -```typescript -/** - * Commit nodes using COPY statement (new optimized approach) - */ -private async commitNodesBatchWithCOPY(label: string, nodes: GraphNode[]): Promise { - if (nodes.length === 0) return; - - try { - console.log(`🚀 COPY: Starting COPY-based commit of ${nodes.length} ${label} nodes`); - - // Generate CSV data - const csvData = GitNexusCSVGenerator.generateNodeCSV(nodes, label as NodeLabel); - if (!csvData) { - console.warn(`⚠️ No CSV data generated for ${label} nodes`); - return; - } - - // Write to WASM filesystem with unique filename - const timestamp = Date.now(); - const csvPath = `/temp_${label}_nodes_${timestamp}.csv`; - - // Access FS API through query engine - const kuzuFS = await this.getKuzuFS(); - await kuzuFS.writeFile(csvPath, csvData); - - console.log(`📝 Written ${csvData.length} bytes to ${csvPath}`); - - // Execute COPY statement - const copyQuery = `COPY ${label} FROM '${csvPath}'`; - const result = await this.queryEngine.executeQuery(copyQuery); - await result.close(); - - console.log(`✅ COPY: Successfully loaded ${nodes.length} ${label} nodes via COPY`); - - // Optional: Clean up temp file (WASM filesystem is in-memory, so not critical) - try { - // Note: KuzuDB WASM might not have unlink, that's OK - // await kuzuFS.unlink?.(csvPath); - } catch (cleanupError) { - // Ignore cleanup errors - } - - } catch (error) { - console.error(`❌ COPY failed for ${label} nodes:`, error); - throw error; - } -} - -/** - * Commit relationships using COPY statement (new optimized approach) - */ -private async commitRelationshipsBatchWithCOPY(type: string, relationships: GraphRelationship[]): Promise { - if (relationships.length === 0) return; - - try { - console.log(`🚀 COPY: Starting COPY-based commit of ${relationships.length} ${type} relationships`); - - // Generate CSV data - const csvData = GitNexusCSVGenerator.generateRelationshipCSV(relationships, type as RelationshipType); - if (!csvData) { - console.warn(`⚠️ No CSV data generated for ${type} relationships`); - return; - } - - // Write to WASM filesystem - const timestamp = Date.now(); - const csvPath = `/temp_${type}_rels_${timestamp}.csv`; - - const kuzuFS = await this.getKuzuFS(); - await kuzuFS.writeFile(csvPath, csvData); - - console.log(`📝 Written ${csvData.length} bytes to ${csvPath}`); - - // Execute COPY statement - const copyQuery = `COPY ${type} FROM '${csvPath}'`; - const result = await this.queryEngine.executeQuery(copyQuery); - await result.close(); - - console.log(`✅ COPY: Successfully loaded ${relationships.length} ${type} relationships via COPY`); - - } catch (error) { - console.error(`❌ COPY failed for ${type} relationships:`, error); - throw error; - } -} - -/** - * Get access to KuzuDB FS API - */ -private async getKuzuFS(): Promise { - // Access FS through the query engine's kuzu instance - const kuzuInstance = await this.queryEngine.getKuzuInstance(); - const fs = kuzuInstance.getFS(); - - if (!fs || !fs.writeFile) { - throw new Error('KuzuDB FS API not available'); - } - - return fs; -} -``` - -#### 2.2 Modify Main Batch Methods - -**Replace current `commitNodesBatch` method** (around line 199): - -```typescript -/** - * Commit a batch of nodes with COPY optimization and MERGE fallback - */ -private async commitNodesBatch(label: string, nodes: GraphNode[]): Promise { - if (nodes.length === 0) return; - - // Check if COPY is enabled and supported - if (this.isCopyEnabled() && await this.isCopySupported()) { - try { - await this.commitNodesBatchWithCOPY(label, nodes); - return; // Success with COPY - } catch (copyError) { - console.warn(`⚠️ COPY failed for ${label}, falling back to MERGE:`, copyError.message); - // Fall through to MERGE approach - } - } - - // Fallback to current MERGE approach - await this.commitNodesBatchWithMERGE(label, nodes); -} - -/** - * Commit a batch of relationships with COPY optimization and MERGE fallback - */ -private async commitRelationshipsBatch(type: string, relationships: GraphRelationship[]): Promise { - if (relationships.length === 0) return; - - // Check if COPY is enabled and supported - if (this.isCopyEnabled() && await this.isCopySupported()) { - try { - await this.commitRelationshipsBatchWithCOPY(type, relationships); - return; // Success with COPY - } catch (copyError) { - console.warn(`⚠️ COPY failed for ${type}, falling back to MERGE:`, copyError.message); - // Fall through to MERGE approach - } - } - - // Fallback to current MERGE approach - await this.commitRelationshipsBatchWithMERGE(type, relationships); -} -``` - -#### 2.3 Rename Current Methods for Fallback - -**Rename existing methods** to preserve them as fallback: - -```typescript -/** - * Original MERGE-based batch commit (kept as fallback) - */ -private async commitNodesBatchWithMERGE(label: string, nodes: GraphNode[]): Promise { - // Move existing commitNodesBatch implementation here - // ... existing MERGE logic ... -} - -/** - * Original MERGE-based relationship commit (kept as fallback) - */ -private async commitRelationshipsBatchWithMERGE(type: string, relationships: GraphRelationship[]): Promise { - // Move existing commitRelationshipsBatch implementation here - // ... existing MERGE logic ... -} -``` - -#### 2.4 Add Support Detection Methods - -```typescript -/** - * Check if COPY approach is enabled via feature flag - */ -private isCopyEnabled(): boolean { - return isKuzuCopyEnabled(); // Feature flag function -} - -/** - * Check if COPY approach is supported in current environment - */ -private async isCopySupported(): Promise { - try { - const kuzuFS = await this.getKuzuFS(); - return !!(kuzuFS && kuzuFS.writeFile); - } catch (error) { - return false; - } -} -``` - -### Phase 3: KuzuDB Module Enhancement - -**File**: `src/core/kuzu/kuzu-npm-integration.ts` - -#### 3.1 Expose FS API - -**Add to KuzuInstance interface** (around line 206): - -```typescript -export interface KuzuInstance { - // ... existing methods - - /** - * Get access to KuzuDB filesystem API for COPY operations - */ - getFS(): any; -} -``` - -**Add to createKuzuInstance function** (around line 212): - -```typescript -return { - // ... existing methods - - getFS(): any { - if (!kuzuModule || !kuzuModule.default || !kuzuModule.default.FS) { - throw new Error('KuzuDB FS API not available'); - } - return kuzuModule.default.FS; - } -}; -``` - -#### 3.2 Add FS API to KuzuQueryEngine - -**File**: `src/core/graph/kuzu-query-engine.ts` - -**Add method** (around line 680): - -```typescript -/** - * Get KuzuDB instance for direct FS access - */ -async getKuzuInstance(): Promise { - if (!this.kuzuInstance) { - throw new Error('KuzuDB not initialized'); - } - return this.kuzuInstance; -} -``` - -### Phase 4: Feature Flag Integration - -**File**: `src/config/features.ts` - -#### 4.1 Add COPY Feature Flag - -**Add after existing feature flags** (around line 106): - -```typescript -/** - * Enable KuzuDB COPY-based bulk loading (experimental) - */ -export function isKuzuCopyEnabled(): boolean { - return cachedConfig?.features.enableKuzuCopy ?? false; -} -``` - -#### 4.2 Add to Config Schema - -**File**: `src/config/config.ts` - -**Add to features schema**: - -```typescript -const featuresSchema = z.object({ - // ... existing features - enableKuzuCopy: z.boolean().default(false), -}); -``` - -**Add to default config**: - -```typescript -features: { - // ... existing features - enableKuzuCopy: false, // Disabled by default for gradual rollout -} -``` - -### Phase 5: Import Integration - -**File**: `src/core/graph/kuzu-knowledge-graph.ts` - -**Add import at top**: - -```typescript -import { GitNexusCSVGenerator } from '../kuzu/csv-generator.ts'; -import { isKuzuCopyEnabled } from '../../config/features.ts'; -``` - -## Data Flow Analysis & Mapping - -### Node Type Processing Pipeline - -```typescript -// Pass 1: Structure Processor -Project -> CSV: id,name,path,description,version,createdAt -Folder -> CSV: id,name,path,fullPath,depth -File -> CSV: id,name,path,filePath,extension,language,size,definitionCount,lineCount - -// Pass 2: Parsing Processor -Function -> CSV: id,name,filePath,type,startLine,endLine,qualifiedName,parameters,returnType,accessibility,isStatic,isAsync,parentClass,docstring -Class -> CSV: id,name,filePath,startLine,endLine,qualifiedName,accessibility,isAbstract,extends,implements,docstring -Method -> CSV: id,name,filePath,startLine,endLine,qualifiedName,parameters,returnType,accessibility,isStatic,isAsync,parentClass,docstring -Variable -> CSV: id,name,filePath,startLine,endLine,type,accessibility,isStatic -Interface-> CSV: id,name,filePath,startLine,endLine,qualifiedName,extends,docstring -Type -> CSV: id,name,filePath,startLine,endLine,qualifiedName,typeDefinition,docstring -Import -> CSV: id,name,filePath,type,startLine,endLine,parameters,returnType,accessibility,isStatic,isAsync,parentClass,decorators,extends,implements,importPath,exportType,docstring -Decorator-> CSV: id,name,filePath,startLine,endLine,targetType,arguments -``` - -### Relationship Type Processing Pipeline - -```typescript -// Pass 1: Structure Relationships -CONTAINS -> CSV: source,target (no additional properties) - -// Pass 2: Parsing Relationships -DEFINES -> CSV: source,target,filePath,line_number - -// Pass 3: Import Relationships -IMPORTS -> CSV: source,target,importType,localName,exportedName - -// Pass 4: Call Relationships -CALLS -> CSV: source,target,callType,functionName,startLine,endLine -``` - -## Performance Optimization Strategy - -### Batch Size Optimization - -```typescript -// Current: Fixed 100 items per batch -// Optimized: Dynamic batch sizing based on data size - -private calculateOptimalBatchSize(nodes: GraphNode[]): number { - const avgNodeSize = this.estimateNodeSize(nodes[0]); - const targetCSVSize = 1024 * 1024; // 1MB target - return Math.min(Math.max(Math.floor(targetCSVSize / avgNodeSize), 10), 1000); -} - -private estimateNodeSize(node: GraphNode): number { - return JSON.stringify(node).length * 1.2; // CSV overhead factor -} -``` - -### Memory Management - -```typescript -// Stream large CSV generation to avoid memory spikes -private async generateLargeCSV(nodes: GraphNode[], label: NodeLabel): Promise { - if (nodes.length < 1000) { - return GitNexusCSVGenerator.generateNodeCSV(nodes, label); - } - - // For large datasets, generate in chunks - const chunks: string[] = []; - const chunkSize = 500; - - for (let i = 0; i < nodes.length; i += chunkSize) { - const chunk = nodes.slice(i, i + chunkSize); - const csvChunk = GitNexusCSVGenerator.generateNodeCSV(chunk, label); - - if (i === 0) { - chunks.push(csvChunk); // Include header - } else { - // Skip header for subsequent chunks - const lines = csvChunk.split('\n'); - chunks.push(lines.slice(1).join('\n')); - } - } - - return chunks.join('\n'); -} -``` - -## Error Handling & Recovery - -### Comprehensive Error Categories - -```typescript -enum CopyErrorType { - FS_NOT_AVAILABLE = 'FS_NOT_AVAILABLE', - FS_WRITE_FAILED = 'FS_WRITE_FAILED', - CSV_GENERATION_FAILED = 'CSV_GENERATION_FAILED', - COPY_EXECUTION_FAILED = 'COPY_EXECUTION_FAILED', - SCHEMA_MISMATCH = 'SCHEMA_MISMATCH', - DATA_FORMAT_ERROR = 'DATA_FORMAT_ERROR' -} - -private async handleCopyError(error: Error, errorType: CopyErrorType, context: string): Promise { - console.error(`❌ COPY Error [${errorType}] in ${context}:`, error.message); - - // Log detailed error for debugging - this.logCopyError(errorType, error, context); - - // Increment failure metrics - this.incrementCopyFailureMetric(errorType); - - // Determine if we should retry or fallback - if (this.shouldRetryAfterError(errorType)) { - throw error; // Let retry logic handle it - } else { - // Fallback to MERGE approach - throw new Error(`COPY failed, falling back to MERGE: ${error.message}`); - } -} -``` - -### Auto-Recovery Mechanisms - -```typescript -private async executeWithRetry( - operation: () => Promise, - maxRetries: number = 2, - context: string -): Promise { - let lastError: Error; - - for (let attempt = 1; attempt <= maxRetries; attempt++) { - try { - return await operation(); - } catch (error) { - lastError = error as Error; - console.warn(`⚠️ COPY attempt ${attempt}/${maxRetries} failed in ${context}:`, error); - - if (attempt < maxRetries) { - // Wait before retry with exponential backoff - await this.delay(Math.pow(2, attempt) * 100); - } - } - } - - throw lastError!; -} -``` - -## Testing Strategy - -### Unit Tests - -**File**: `src/__tests__/kuzu-csv-generator.test.ts` - -```typescript -describe('GitNexusCSVGenerator', () => { - describe('generateNodeCSV', () => { - it('should generate valid CSV for Function nodes', () => { - const nodes: GraphNode[] = [ - { - id: 'func_1', - label: 'Function', - properties: { - name: 'testFunction', - filePath: '/src/test.ts', - startLine: 10, - parameters: ['param1', 'param2'], - returnType: 'string' - } - } - ]; - - const csv = GitNexusCSVGenerator.generateNodeCSV(nodes, 'Function'); - - expect(csv).toContain('id,name,filePath'); - expect(csv).toContain('func_1,testFunction,/src/test.ts'); - expect(csv).toContain('"[""param1"",""param2""]"'); // Escaped array - }); - - it('should handle special characters in CSV', () => { - const nodes: GraphNode[] = [ - { - id: 'test_1', - label: 'Function', - properties: { - name: 'function,with"quotes', - docstring: 'Multi\nline\ndocstring' - } - } - ]; - - const csv = GitNexusCSVGenerator.generateNodeCSV(nodes, 'Function'); - - expect(csv).toContain('"function,with""quotes"'); - expect(csv).toContain('"Multi\nline\ndocstring"'); - }); - }); -}); -``` - -### Integration Tests - -**File**: `src/__tests__/kuzu-copy-integration.test.ts` - -```typescript -describe('KuzuDB COPY Integration', () => { - let kuzuGraph: KuzuKnowledgeGraph; - - beforeEach(async () => { - // Setup test KuzuDB instance - const queryEngine = new KuzuQueryEngine({ databasePath: ':memory:' }); - await queryEngine.initialize(); - kuzuGraph = new KuzuKnowledgeGraph(queryEngine, { batchSize: 10 }); - }); - - it('should successfully use COPY for node batch loading', async () => { - const nodes: GraphNode[] = generateTestNodes(50, 'Function'); - - // Enable COPY for this test - jest.spyOn(kuzuGraph as any, 'isCopyEnabled').mockReturnValue(true); - jest.spyOn(kuzuGraph as any, 'isCopySupported').mockResolvedValue(true); - - await kuzuGraph.commitNodesBatch('Function', nodes); - - // Verify data was loaded - const result = await kuzuGraph.queryEngine.executeQuery('MATCH (f:Function) RETURN count(f)'); - expect(result.rows[0][0]).toBe(50); - }); - - it('should fallback to MERGE when COPY fails', async () => { - const nodes: GraphNode[] = generateTestNodes(10, 'Function'); - - // Mock COPY failure - jest.spyOn(kuzuGraph as any, 'isCopyEnabled').mockReturnValue(true); - jest.spyOn(kuzuGraph as any, 'isCopySupported').mockResolvedValue(true); - jest.spyOn(kuzuGraph as any, 'commitNodesBatchWithCOPY').mockRejectedValue(new Error('COPY failed')); - - // Should not throw - should fallback to MERGE - await expect(kuzuGraph.commitNodesBatch('Function', nodes)).resolves.not.toThrow(); - }); -}); -``` - -## Deployment Strategy - -### Phase 1: Development & Testing (Week 1-2) -- [ ] Implement CSV generator with comprehensive tests -- [ ] Add COPY methods to KuzuKnowledgeGraph -- [ ] Implement FS API access -- [ ] Add feature flag infrastructure -- [ ] Unit and integration testing - -### Phase 2: Internal Testing (Week 3) -- [ ] Deploy with feature flag disabled -- [ ] Enable for internal testing environments -- [ ] Performance benchmarking vs current MERGE approach -- [ ] Error rate monitoring and debugging - -### Phase 3: Gradual Rollout (Week 4-5) -- [ ] Enable for 10% of users -- [ ] Monitor performance metrics and error rates -- [ ] Gradual increase to 50% then 100% -- [ ] Rollback capability via feature flag - -### Phase 4: Optimization (Week 6+) -- [ ] Performance tuning based on real-world data -- [ ] Advanced error recovery mechanisms -- [ ] Memory optimization for large repositories -- [ ] Documentation and knowledge transfer - -## Success Metrics - -### Performance Metrics -- **Ingestion Speed**: Target 5-10x improvement for large repositories (1000+ files) -- **Memory Usage**: Reduce peak memory consumption during batch operations -- **Error Rate**: Maintain <1% COPY failure rate with successful MERGE fallback - -### Reliability Metrics -- **Fallback Success**: 100% successful fallback to MERGE when COPY fails -- **Data Integrity**: Zero data loss during COPY operations -- **Browser Compatibility**: Support across Chrome, Firefox, Safari, Edge - -### Adoption Metrics -- **Feature Flag Rollout**: Successful gradual deployment to 100% of users -- **User Experience**: No degradation in user-facing functionality -- **Developer Experience**: Seamless integration with existing codebase - -## Risk Mitigation - -### Technical Risks -1. **COPY Statement Failures**: Comprehensive fallback to MERGE approach -2. **FS API Unavailability**: Environment detection and graceful degradation -3. **Memory Issues**: Chunked processing for large datasets -4. **Browser Compatibility**: Feature detection and progressive enhancement - -### Operational Risks -1. **Performance Regression**: Extensive benchmarking and monitoring -2. **Data Corruption**: Comprehensive validation and testing -3. **Deployment Issues**: Feature flag-based rollout with instant rollback capability - -This implementation plan provides a comprehensive, step-by-step approach to integrating the proven COPY functionality into GitNexus with full consideration of the existing architecture, polymorphic data structures, and operational requirements. diff --git a/KUZU_COPY_IMPLEMENTATION_SUMMARY.md b/KUZU_COPY_IMPLEMENTATION_SUMMARY.md deleted file mode 100644 index 3b6975458..000000000 --- a/KUZU_COPY_IMPLEMENTATION_SUMMARY.md +++ /dev/null @@ -1,199 +0,0 @@ -# KuzuDB COPY Implementation - Complete Summary - -## ✅ **Implementation Status: COMPLETE** - -All components have been successfully implemented and tested. The COPY feature is ready for deployment. - -## 📋 **What Was Implemented** - -### 1. **Configuration & Feature Flags** ✅ -- **File**: `gitnexus.config.ts` - - Added `enableKuzuCopy: boolean` to interface and config - - **Default**: `false` (safe rollout) - -- **File**: `src/config/config-loader.ts` - - Added schema validation for `enableKuzuCopy` - - Added to default config structure - -- **File**: `src/config/features.ts` - - Added `isKuzuCopyEnabled()` function - - Integrated with existing feature flag system - -### 2. **CSV Generator Service** ✅ -- **File**: `src/core/kuzu/csv-generator.ts` - - **Schema-aware generation**: Handles all 16 node types and 12 relationship types - - **Polymorphic properties**: Dynamic column detection beyond schema - - **Proper CSV escaping**: RFC 4180 compliant with quote handling - - **Array/Object handling**: JSON serialization for complex types - - **Chunked processing**: Memory-efficient for large datasets - - **Validation utilities**: CSV format validation and error detection - - **Performance utilities**: Batch size calculation and memory management - -### 3. **Enhanced KuzuKnowledgeGraph** ✅ -- **File**: `src/core/graph/kuzu-knowledge-graph.ts` - - **New COPY methods**: `commitNodesBatchWithCOPY()` and `commitRelationshipsBatchWithCOPY()` - - **Graceful fallback**: Automatic fallback to MERGE on any COPY failure - - **Environment detection**: Feature flag and FS API availability checks - - **Performance logging**: Clear distinction between COPY-BULK and MERGE-BATCH - - **Data verification**: Post-COPY queries to verify data was written - - **Error handling**: Comprehensive error recovery and reporting - -### 4. **KuzuDB Module Enhancements** ✅ -- **File**: `src/core/kuzu/kuzu-npm-integration.ts` - - Added `getFS()` method to expose KuzuDB filesystem API - - Proper error handling for FS API unavailability - -- **File**: `src/core/kuzu/kuzu-loader.ts` - - Added `getFS()` to KuzuInstance interface - - Fallback implementation for WASM loader - -- **File**: `src/core/graph/kuzu-query-engine.ts` - - Existing `getKuzuInstance()` method provides access to FS API - -### 5. **Comprehensive Testing** ✅ -- **File**: `src/__tests__/kuzu-copy-implementation.test.ts` - - Unit tests for CSV generation with all node types - - Special character and escaping tests - - Array and object property handling tests - - Chunked processing tests - - CSV validation tests - - Performance utility tests - -## 🔍 **Logging Implementation** - -### Clear COPY vs MERGE Distinction -```javascript -// COPY Success -🚀 COPY-BULK: Loading 150 Function nodes via COPY statement -✅ COPY-BULK: Successfully loaded 150 Function nodes in 45.32ms (12543 bytes CSV) -📊 COPY-BULK: KuzuDB now contains 1250 total Function nodes - -// COPY Fallback -⚠️ COPY-BULK: COPY failed for Function, falling back to MERGE batch: FS API not available -🔄 MERGE-BATCH: COPY not supported, using MERGE batch for 150 Function nodes -✅ BATCH: Successfully committed all nodes in batches - -// COPY Disabled -🔄 MERGE-BATCH: COPY disabled, using MERGE batch for 150 Function nodes -``` - -### Data Verification Maintained -- **Post-ingestion verification**: All existing verification queries still work -- **Real-time verification**: Each COPY operation includes count verification -- **Comprehensive stats**: Existing dual-write statistics are preserved - -## 🎯 **Key Features Verified** - -### ✅ **Polymorphic Data Handling** -- **16 Node Types**: Project, Folder, File, Function, Class, Method, Variable, Interface, Type, Decorator, Import, CodeElement, Package, Module, Enum -- **12 Relationship Types**: CONTAINS, CALLS, INHERITS, OVERRIDES, IMPORTS, USES, DEFINES, DECORATES, IMPLEMENTS, ACCESSES, EXTENDS, BELONGS_TO -- **Dynamic Properties**: Handles properties not in schema definitions -- **Complex Types**: Arrays, objects, booleans, numbers, strings, null/undefined - -### ✅ **Performance Optimizations** -- **Chunked Processing**: Automatic chunking for datasets > 1000 items -- **Memory Management**: Conservative chunk sizes (500-1500 items) -- **Batch Size Optimization**: Dynamic calculation based on data size -- **CSV Size Estimation**: Memory planning for large datasets - -### ✅ **Error Handling & Recovery** -- **Environment Detection**: Checks for FS API availability -- **Graceful Fallback**: 100% fallback to existing MERGE approach -- **Error Categories**: FS errors, COPY errors, data format errors -- **Comprehensive Logging**: Clear error messages and recovery actions - -### ✅ **Safety & Compatibility** -- **Zero Breaking Changes**: Existing functionality unchanged -- **Feature Flag Control**: Instant enable/disable capability -- **Backward Compatibility**: All existing queries and verification work -- **Data Integrity**: No data loss scenarios - -## 📊 **Expected Performance Impact** - -| Repository Size | Current (MERGE) | New (COPY) | Improvement | -|----------------|----------------|------------|-------------| -| Small (< 100 files) | ~5s | ~2s | **2-3x faster** | -| Medium (100-500 files) | ~25s | ~4s | **5-7x faster** | -| Large (1000+ files) | ~120s | ~8s | **10-15x faster** | - -## 🚀 **Deployment Instructions** - -### Phase 1: Enable Feature (Safe) -```typescript -// In gitnexus.config.ts -features: { - enableKuzuCopy: true // Enable COPY feature -} -``` - -### Phase 2: Monitor Logs -Look for these log patterns: -- `🚀 COPY-BULK:` - COPY operations in progress -- `✅ COPY-BULK:` - COPY operations successful -- `📊 COPY-BULK:` - Data verification results -- `⚠️ COPY-BULK:` - COPY failures with fallback -- `🔄 MERGE-BATCH:` - Fallback to MERGE operations - -### Phase 3: Verify Performance -- Check ingestion times in browser console -- Verify all existing verification queries still work -- Confirm no data loss or corruption - -### Phase 4: Rollback (If Needed) -```typescript -// In gitnexus.config.ts -features: { - enableKuzuCopy: false // Disable COPY feature -} -``` - -## 🔧 **Technical Details** - -### CSV Format Specifications -- **Header Row**: Schema columns + dynamic columns -- **Escaping**: RFC 4180 compliant (quotes, commas, newlines) -- **Arrays**: JSON serialization (`["item1","item2"]`) -- **Objects**: JSON serialization (`{"key":"value"}`) -- **Booleans**: `true`/`false` strings -- **Numbers**: String representation -- **Null/Undefined**: Empty strings - -### File System Operations -- **Temp Files**: `/temp_{label}_{type}_{timestamp}.csv` -- **Write Operation**: `kuzu.FS.writeFile(path, csvData)` -- **COPY Statement**: `COPY {TableName} FROM '{csvPath}'` -- **Cleanup**: Automatic (in-memory filesystem) - -### Fallback Scenarios -1. **Feature Disabled**: `enableKuzuCopy: false` -2. **FS API Unavailable**: Browser/environment limitation -3. **COPY Execution Failure**: SQL errors, schema issues -4. **CSV Generation Failure**: Data format problems - -## ✅ **Verification Checklist** - -- [x] **Configuration added** to gitnexus.config.ts -- [x] **Feature flag implemented** in config system -- [x] **CSV generator created** with full schema support -- [x] **COPY methods implemented** in KuzuKnowledgeGraph -- [x] **FS API exposed** through KuzuDB modules -- [x] **Fallback strategy implemented** with graceful degradation -- [x] **Logging enhanced** with clear COPY vs MERGE distinction -- [x] **Data verification maintained** with post-COPY queries -- [x] **Error handling comprehensive** with recovery mechanisms -- [x] **Testing implemented** with unit and integration tests -- [x] **Performance optimizations** with chunked processing -- [x] **Memory management** with conservative chunk sizes -- [x] **Documentation complete** with deployment guide - -## 🎉 **Ready for Production** - -The KuzuDB COPY implementation is **complete**, **tested**, and **production-ready**. It provides: - -- **5-10x performance improvement** for large repositories -- **100% backward compatibility** with existing functionality -- **Zero data loss risk** with comprehensive fallback -- **Clear monitoring** with detailed logging -- **Instant rollback** capability via feature flag - -The implementation successfully leverages the proven COPY approach while maintaining GitNexus's complex polymorphic architecture and operational safety requirements. diff --git a/src/ui/components/chat/ChatInterface.tsx b/src/ui/components/chat/ChatInterface.tsx index d9c5e1117..1a3200b16 100644 --- a/src/ui/components/chat/ChatInterface.tsx +++ b/src/ui/components/chat/ChatInterface.tsx @@ -913,8 +913,8 @@ const ChatInterface: React.FC = ({ {llmSettings.provider === 'azure-openai' ? ( setLLMSettings(prev => ({ ...prev, model: e.target.value }))} + value={llmSettings.azureOpenAIDeploymentName || ''} + onChange={(e) => setLLMSettings(prev => ({ ...prev, azureOpenAIDeploymentName: e.target.value }))} placeholder="gpt-4.1-mini-v2" style={{ width: '100%', padding: '6px', fontSize: '14px' }} /> @@ -1015,8 +1015,8 @@ const ChatInterface: React.FC = ({ localStorage.setItem('azure_openai_endpoint', llmSettings.azureOpenAIEndpoint); } // For Azure OpenAI, the model field contains the deployment name - if (llmSettings.provider === 'azure-openai' && llmSettings.model) { - localStorage.setItem('azure_openai_deployment', llmSettings.model); + if (llmSettings.provider === 'azure-openai' && llmSettings.azureOpenAIDeploymentName) { + localStorage.setItem('azure_openai_deployment', llmSettings.azureOpenAIDeploymentName); } if (llmSettings.azureOpenAIApiVersion) { localStorage.setItem('azure_openai_api_version', llmSettings.azureOpenAIApiVersion); diff --git a/src/ui/components/graph/FloatingSourceViewer.tsx b/src/ui/components/graph/FloatingSourceViewer.tsx index fa5047dde..82d949104 100644 --- a/src/ui/components/graph/FloatingSourceViewer.tsx +++ b/src/ui/components/graph/FloatingSourceViewer.tsx @@ -699,20 +699,22 @@ This node represents a ${nodeType.toLowerCase()} in the knowledge graph. return ( <> - {/* Backdrop */} -
+ {/* Backdrop (hidden when pinned to avoid blocking UI interactions) */} + {!isPinned && ( +
+ )} {/* Floating Window */}
{ gap: '16px', fontSize: '14px', fontWeight: '500', - color: 'white' + color: colors.text }, navbarButton: { @@ -794,7 +794,19 @@ const HomePage: React.FC = () => { alignItems: 'center', justifyContent: 'center', zIndex: 2000 - }}> + }} + onClick={(e) => { + if (e.target === e.currentTarget) { + updateState({ showSettings: false }); + } + }} + onKeyDown={(e) => { + if (e.key === 'Escape') { + updateState({ showSettings: false }); + } + }} + tabIndex={-1} + >