28 lines
1.3 KiB
MySQL
28 lines
1.3 KiB
MySQL
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-- Migration: 026_DocumentContentHashes
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-- Description: Create table for tracking document content hashes to prevent duplicate processing
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CREATE TABLE IF NOT EXISTS document_content_hashes (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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company_id TEXT NOT NULL,
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content_hash TEXT NOT NULL, -- SHA-256 hash of file content
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original_filename TEXT NOT NULL,
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attachment_id TEXT, -- Reference to attachment_read_models
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draft_id TEXT, -- Reference to journal_entry_draft_read_models
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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-- Ensure unique hash per company (same document can exist in different companies)
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CONSTRAINT uq_document_hash_company UNIQUE(company_id, content_hash)
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);
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-- Index for fast lookups by company
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CREATE INDEX IF NOT EXISTS idx_document_content_hashes_company_id
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ON document_content_hashes(company_id);
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-- Index for hash lookups
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CREATE INDEX IF NOT EXISTS idx_document_content_hashes_content_hash
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ON document_content_hashes(content_hash);
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COMMENT ON TABLE document_content_hashes IS 'Tracks document content hashes to prevent duplicate processing of the same document';
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COMMENT ON COLUMN document_content_hashes.content_hash IS 'SHA-256 hash of the file content';
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COMMENT ON COLUMN document_content_hashes.draft_id IS 'Reference to the journal entry draft created from this document';
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