vec0Rename only emitted ALTER TABLE on `<name>_ivf_cells%02d`, so renaming
an IVF-indexed vec0 table left `_ivf_centroids`, `_ivf_rowid_map`, and
`_ivf_vectors` (when quantizer != none) with the old prefix. Subsequent
queries against the renamed table broke, and DROP TABLE left those three
shadows orphaned in the schema. Same shape as the DiskANN/rescore bug fixed
in #294, just for the IVF branch.
Mirror ivf_create_shadow_tables: emit ALTER for all four IVF shadows,
gating `_ivf_vectors` on quantizer != VEC0_IVF_QUANTIZER_NONE.
Adds test-ivf-rename.py (auto-skipped on default builds via conftest's
test-ivf prefix rule) covering quantizer=none, quantizer=binary, and
DROP-after-rename. Also adds a rescore rename regression test to
test-rename.py to lock down the (already-correct) rescore path.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
vec0Rename emits an unconditional ALTER TABLE on `<name>_vector_chunks%02d`
for every vector column, but non-FLAT columns (rescore, IVF, DiskANN) don't
create that shadow table — so ALTER TABLE RENAME on a DiskANN-indexed (or
rescore/IVF) vec0 table fails with `no such table` and leaves any cached
prepared statements still referencing the old name.
Mirror the guard already used at create time in vec0_init around
VEC0_SHADOW_VECTOR_N_CREATE: only rename `_vector_chunks` when the column's
index_type is VEC0_INDEX_TYPE_FLAT.
Adds a regression test exercising rename on a DiskANN-indexed table.
Enables ALTER TABLE RENAME on vec0 tables by renaming all shadow tables
(info, rowids, chunks, auxiliary, vector_chunks, metadata, rescore,
diskann, ivf) and updating cached names and prepared statements.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
