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wursor/supabase/migrations/011_fts_route_weight.sql
T
2026-05-04 12:30:56 +01:00

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SQL

-- ── Migration 011: Add route column to artboards FTS tsvector ────────────────
--
-- Problem:
-- Migration 006 created artboards.search_vector with only:
-- name (weight A) || metadata_jsonb::text (weight C)
-- The comment in 006 says route should be at weight B, but route didn't exist
-- until migration 007. Generated column expressions cannot be altered in-place
-- (pre-PG17) — the column must be dropped and re-added.
--
-- Fix:
-- Drop and recreate artboards.search_vector to include:
-- name (weight A) — exact component/screen name matches rank highest
-- route (weight B) — URL route matches rank highly (added by migration 007)
-- metadata_jsonb (weight C) — catch-all metadata text
--
-- Drop/re-add regenerates values for all existing rows automatically since
-- the column is GENERATED ALWAYS AS (stored computed column).
-- ─────────────────────────────────────────────────────────────────────────────
-- Drop the existing generated column (and its GIN index, which depends on it)
DROP INDEX IF EXISTS artboards_search_vector_idx;
ALTER TABLE artboards
DROP COLUMN IF EXISTS search_vector;
-- Re-add with route at weight B
ALTER TABLE artboards
ADD COLUMN search_vector tsvector
GENERATED ALWAYS AS (
setweight(to_tsvector('english', coalesce(name, '')), 'A') ||
setweight(to_tsvector('english', coalesce(route, '')), 'B') ||
setweight(to_tsvector('english', coalesce(metadata_jsonb::text, '')), 'C')
) STORED;
-- Rebuild the GIN index on the updated column
CREATE INDEX artboards_search_vector_idx
ON artboards USING GIN (search_vector);