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fix(db): retire ALL legacy cad_buildings index names before rename (#168 hotfix2) (#174)

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PR #173 fixed cad_buildings_pkey but missed 5 other indexes. Same root cause:
PG does NOT auto-rename indexes on table rename → all 6 backing indexes
remain on cad_buildings_old_apr26 with original names.

Add 5 more `ALTER INDEX IF EXISTS ... RENAME TO ..._old_apr26_*` statements
for: geom_gist, quarter_idx, objdoc_idx, complex_idx, purpose_idx.

Migration 92 still NOT in _schema_migrations (4× rollback now). Next deploy
will re-apply cleanly.

Co-authored-by: lekss361 <claudestars@proton.me>
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lekss361 2026-05-15 14:09:40 +03:00 • committed by GitHub
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17
data/sql/92_cad_bulk_layers.sql
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@ -503,13 +503,18 @@ BEGIN
WHERE table_schema = 'public' AND table_name = 'cad_buildings'
) THEN
ALTER TABLE cad_buildings_new RENAME TO cad_buildings;
-- First, retire the legacy PK index name that's still attached to
-- cad_buildings_old_apr26 (PG does NOT auto-rename PK indexes on
-- table rename — pre-K.1 backup left cad_buildings_pkey behind).
-- Without this rename, the next line collides with the existing
-- index name → 'relation already exists' → tx rollback.
-- First, retire ALL legacy index names that are still attached to
-- cad_buildings_old_apr26 — PG does NOT auto-rename indexes on
-- table rename, so pre-K.1 backup left all 6 names occupied.
-- Without these renames, the _new → unsuffixed renames below collide
-- → 'relation already exists' → tx rollback.
ALTER INDEX IF EXISTS cad_buildings_pkey RENAME TO cad_buildings_old_apr26_pkey;
-- Rename indexes to drop the _new suffix
ALTER INDEX IF EXISTS cad_buildings_geom_gist RENAME TO cad_buildings_old_apr26_geom_gist;
ALTER INDEX IF EXISTS cad_buildings_quarter_idx RENAME TO cad_buildings_old_apr26_quarter_idx;
ALTER INDEX IF EXISTS cad_buildings_objdoc_idx RENAME TO cad_buildings_old_apr26_objdoc_idx;
ALTER INDEX IF EXISTS cad_buildings_complex_idx RENAME TO cad_buildings_old_apr26_complex_idx;
ALTER INDEX IF EXISTS cad_buildings_purpose_idx RENAME TO cad_buildings_old_apr26_purpose_idx;
-- Now rename _new → unsuffixed names safely
ALTER INDEX IF EXISTS cad_buildings_new_pkey RENAME TO cad_buildings_pkey;
-- Note: ALTER INDEX RENAME on a PK index also renames the constraint
-- automatically in PG 16. No separate RENAME CONSTRAINT needed.