44 lines
2.2 KiB
SQL
44 lines
2.2 KiB
SQL
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-- Migration 004: Add GIN trigram indexes for ILIKE/LIKE substring search
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--
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-- Eliminates full table scans on text search queries by enabling
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-- PostgreSQL's pg_trgm extension and creating GIN indexes with
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-- gin_trgm_ops on all columns used in ILIKE / LIKE '%text%' patterns.
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--
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-- CONCURRENTLY is used so that no table locks are held during index
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-- creation — zero downtime for existing installations.
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--
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-- NOTE: CREATE INDEX CONCURRENTLY cannot run inside a transaction block.
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-- If using sqlx migrate, run this file manually:
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-- psql -f db/migrations/004_add_trigram_indexes.sql
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-- 0. Enable the pg_trgm extension (idempotent)
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CREATE EXTENSION IF NOT EXISTS pg_trgm;
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-- 1. Contacts — search_contacts(), get_contacts_by_email()
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_contacts_full_name_trgm
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ON carddav.contacts USING gin (full_name gin_trgm_ops);
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_contacts_first_name_trgm
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ON carddav.contacts USING gin (first_name gin_trgm_ops);
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_contacts_last_name_trgm
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ON carddav.contacts USING gin (last_name gin_trgm_ops);
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_contacts_nickname_trgm
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ON carddav.contacts USING gin (nickname gin_trgm_ops);
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_contacts_organization_trgm
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ON carddav.contacts USING gin (organization gin_trgm_ops);
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_contacts_email_text_trgm
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ON carddav.contacts USING gin ((email::text) gin_trgm_ops);
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_contacts_phone_text_trgm
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ON carddav.contacts USING gin ((phone::text) gin_trgm_ops);
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-- 2. Calendar events — find_events_by_summary()
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_calendar_events_summary_trgm
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ON caldav.calendar_events USING gin (summary gin_trgm_ops);
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-- 3. Files — search_files_paginated(), search_files_in_subtree(), suggest_files_by_name()
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_files_name_trgm
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ON storage.files USING gin (name gin_trgm_ops);
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-- 4. Folders — search_folders(), list_descendant_folders(), suggest_folders_by_name()
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_folders_name_trgm
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ON storage.folders USING gin (name gin_trgm_ops);
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