Here's my thought on SQL on Pandas - DuckDB
duckdb can just query any pandas dataframe that is in memory.
I tried running it against a list of objects and got this error. Great error message that gives me supported types right in the message.
Make sure that "posts" is either a pandas.DataFrame, duckdb.DuckDBPyRelation, pyarrow Table, Dataset, RecordBatchReader, Scanner, or NumPy ndarrays with supported format