d390aa8834
Add metadata and thread_id columns to dependencies table to support: - Edge metadata: JSON blob for type-specific data (similarity scores, etc.) - Thread queries: O(1) conversation threading via thread_id Changes: - New migration 020_edge_consolidation.go - Updated Dependency struct with Metadata and ThreadID fields - Added new entity types: authored-by, assigned-to, approved-by - Relaxed DependencyType validation (any non-empty string ≤50 chars) - Added IsWellKnown() and AffectsReadyWork() methods - Updated SQL queries to include new columns - Updated tests for new behavior This enables HOP knowledge graph requirements and Reddit-style threading. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
61 lines
1.8 KiB
Go
61 lines
1.8 KiB
Go
package migrations
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import (
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"database/sql"
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"fmt"
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)
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// MigrateEdgeConsolidation adds metadata and thread_id columns to the dependencies table.
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// This is Phase 1 of the Edge Schema Consolidation (Decision 004):
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// - metadata: JSON blob for type-specific edge data (similarity scores, reasons, etc.)
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// - thread_id: For efficient conversation threading queries
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//
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// These columns enable:
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// - Edge metadata without schema changes (extensibility)
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// - O(1) thread queries for Reddit-style conversations
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// - HOP knowledge graph foundation
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func MigrateEdgeConsolidation(db *sql.DB) error {
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columns := []struct {
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name string
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definition string
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}{
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{"metadata", "TEXT DEFAULT '{}'"},
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{"thread_id", "TEXT DEFAULT ''"},
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}
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for _, col := range columns {
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var columnExists bool
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err := db.QueryRow(`
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SELECT COUNT(*) > 0
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FROM pragma_table_info('dependencies')
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WHERE name = ?
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`, col.name).Scan(&columnExists)
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if err != nil {
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return fmt.Errorf("failed to check %s column: %w", col.name, err)
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}
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if columnExists {
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continue
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}
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_, err = db.Exec(fmt.Sprintf(`ALTER TABLE dependencies ADD COLUMN %s %s`, col.name, col.definition))
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if err != nil {
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return fmt.Errorf("failed to add %s column: %w", col.name, err)
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}
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}
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// Add index for thread queries - only index non-empty thread_ids
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_, err := db.Exec(`CREATE INDEX IF NOT EXISTS idx_dependencies_thread ON dependencies(thread_id) WHERE thread_id != ''`)
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if err != nil {
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return fmt.Errorf("failed to create thread_id index: %w", err)
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}
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// Add composite index for finding all edges in a thread by type
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_, err = db.Exec(`CREATE INDEX IF NOT EXISTS idx_dependencies_thread_type ON dependencies(thread_id, type) WHERE thread_id != ''`)
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if err != nil {
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return fmt.Errorf("failed to create thread_type index: %w", err)
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}
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return nil
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}
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