Files
archon/migration/0.1.0/010_add_page_metadata_table.sql
Cole Medin bfd0a84f64 RAG Enhancements (Page Level Retrieval) (#767)
* Initial commit for RAG by document

* Phase 2

* Adding migrations

* Fixing page IDs for chunk metadata

* Fixing unit tests, adding tool to list pages for source

* Fixing page storage upsert issues

* Max file length for retrieval

* Fixing title issue

* Fixing tests
2025-10-09 19:39:27 -05:00

75 lines
3.6 KiB
SQL

-- =====================================================
-- Add archon_page_metadata table for page-based RAG retrieval
-- =====================================================
-- This migration adds support for storing complete documentation pages
-- alongside chunks for improved agent context retrieval.
--
-- Features:
-- - Full page content storage with metadata
-- - Support for llms-full.txt section-based pages
-- - Foreign key relationship from chunks to pages
-- =====================================================
-- Create archon_page_metadata table
CREATE TABLE IF NOT EXISTS archon_page_metadata (
-- Primary identification
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
source_id TEXT NOT NULL,
url TEXT NOT NULL,
-- Content
full_content TEXT NOT NULL,
-- Section metadata (for llms-full.txt H1 sections)
section_title TEXT,
section_order INT DEFAULT 0,
-- Statistics
word_count INT NOT NULL,
char_count INT NOT NULL,
chunk_count INT NOT NULL DEFAULT 0,
-- Timestamps
created_at TIMESTAMPTZ DEFAULT NOW(),
updated_at TIMESTAMPTZ DEFAULT NOW(),
-- Flexible metadata storage
metadata JSONB DEFAULT '{}'::jsonb,
-- Constraints
CONSTRAINT archon_page_metadata_url_unique UNIQUE(url),
CONSTRAINT archon_page_metadata_source_fk FOREIGN KEY (source_id)
REFERENCES archon_sources(source_id) ON DELETE CASCADE
);
-- Add page_id foreign key to archon_crawled_pages
-- This links chunks back to their parent page
-- NULLABLE because existing chunks won't have a page_id yet
ALTER TABLE archon_crawled_pages
ADD COLUMN IF NOT EXISTS page_id UUID REFERENCES archon_page_metadata(id) ON DELETE SET NULL;
-- Create indexes for query performance
CREATE INDEX IF NOT EXISTS idx_archon_page_metadata_source_id ON archon_page_metadata(source_id);
CREATE INDEX IF NOT EXISTS idx_archon_page_metadata_url ON archon_page_metadata(url);
CREATE INDEX IF NOT EXISTS idx_archon_page_metadata_section ON archon_page_metadata(source_id, section_title, section_order);
CREATE INDEX IF NOT EXISTS idx_archon_page_metadata_created_at ON archon_page_metadata(created_at);
CREATE INDEX IF NOT EXISTS idx_archon_page_metadata_metadata ON archon_page_metadata USING GIN(metadata);
CREATE INDEX IF NOT EXISTS idx_archon_crawled_pages_page_id ON archon_crawled_pages(page_id);
-- Add comments to document the table structure
COMMENT ON TABLE archon_page_metadata IS 'Stores complete documentation pages for agent retrieval';
COMMENT ON COLUMN archon_page_metadata.source_id IS 'References the source this page belongs to';
COMMENT ON COLUMN archon_page_metadata.url IS 'Unique URL of the page (synthetic for llms-full.txt sections with #anchor)';
COMMENT ON COLUMN archon_page_metadata.full_content IS 'Complete markdown/text content of the page';
COMMENT ON COLUMN archon_page_metadata.section_title IS 'H1 section title for llms-full.txt pages';
COMMENT ON COLUMN archon_page_metadata.section_order IS 'Order of section in llms-full.txt file (0-based)';
COMMENT ON COLUMN archon_page_metadata.word_count IS 'Number of words in full_content';
COMMENT ON COLUMN archon_page_metadata.char_count IS 'Number of characters in full_content';
COMMENT ON COLUMN archon_page_metadata.chunk_count IS 'Number of chunks created from this page';
COMMENT ON COLUMN archon_page_metadata.metadata IS 'Flexible JSON metadata (page_type, knowledge_type, tags, etc)';
COMMENT ON COLUMN archon_crawled_pages.page_id IS 'Foreign key linking chunk to parent page';
-- =====================================================
-- MIGRATION COMPLETE
-- =====================================================