SingleStore SQLAlchemy dialect: plural table-arg names emit invalid VECTOR_KEYS SQL

TL;DR

The plural forms compile to invalid VECTORKEYS [your value] options instead of index DDL, producing the 1064 error. Rename the keys in tableargs_ to the singular forms; this was fixed upstream in the docs so new copies of the tutorial are correct. The dialect recognizes only the singular keys singlestoredbvectorkey, singlestoredbmultivalueindex, singlestoredbfulltext_index.

The error

plural table-arg names emit invalid VECTOR_KEYS SQL

Fix

1. The plural forms compile to invalid VECTOR_KEYS [your value] options instead of index DDL, producing the 1064 error.

Expected: You get the expected result; the problem is gone.

1. Rename the keys in _tableargs__ to the singular forms; this was fixed upstream in the docs so new copies of the tutorial are correct.

Expected: You get the expected result; the problem is gone.

1. Re-run the original operation and confirm the error is gone.

Expected: no error, normal output.

When to use

• You hit this exact error with SingleStore SQLAlchemy dialect.
• The symptom matches: plural table-arg names emit invalid VECTOR_KEYS SQL.

When NOT to use

• A different error message from SingleStore SQLAlchemy dialect; the cause here is specific to this error.
• Unrelated SingleStore SQLAlchemy dialect issues (different feature, different failure).
• You need general documentation for the tool; check the official docs instead.

Compatibility

Reported against SingleStore SQLAlchemy dialect. Source: https://github.com/singlestore-labs/sqlalchemy-singlestoredb/issues/15.

Variant phrasings

plural table-arg names emit invalid VECTOR_KEYS SQL

Why it happens

Alembic migrations fail with a 1064 syntax error near 'VECTOR_KEYS [your value] The table args used the plural option names from the tutorial.

Edge cases

• If your error message differs even slightly, this is probably a different issue; search the exact text.
• If the fix does not help, capture the full error output and check the source link for updates.

Source

https://github.com/singlestore-labs/sqlalchemy-singlestoredb/issues/15