- Add idx_theses_pub_year composite index on theses(is_published, year DESC) to
schema.sql; replaces the need for the query planner to pick between the two
separate idx_theses_published / idx_theses_year indexes and sort with a temp
B-tree. Every public query filters on is_published=1 and orders/filters by year,
so this covering index eliminates the sort pass for those queries.
- Create storage/migrations/006_add_composite_index.sql and apply to both
posterg.db and test.db.
- Fix storage/migrations/005_add_banner.sql: the view recreation in that file
still referenced the pre-migration-001 table/column names (thesis_keywords,
keywords.keyword). Updated to use thesis_tags / tags tg to match the canonical
schema.sql. The live DB was unaffected (migration 001 ran before 005), but the
file was misleading and would fail if ever re-run from scratch.
