it's alive!

tests run (and fail)

chore(duckdb): naive port of clickhouse compiler

fix(duckdb): hacky fix for output shape

feat(duckdb): bitwise ops (most of them)

feat(duckdb): handle pandas dtype mapping in execute

feat(duckdb): handle decimal types

feat(duckdb): add euler's number

test(duckdb): remove duckdb from alchemycon

feat(duckdb): get _most_ of string ops working

still some failures in re_exract

feat(duckdb): add hash

feat(duckdb): add CAST

feat(duckdb): add cot and strright

chore(duckdb): mark all the targets that still need attention (at least)

feat(duckdb): combine binary bitwise ops

chore(datestuff): some datetime ops

feat(duckdb): add levenshtein, use op.dtype instead of output_dtype

feat(duckdb): add blank list_schemas, use old current_database for now

feat(duckdb): basic interval ops

feat(duckdb): timestamp and temporal ops

feat(duckdb): use pyarrow for fetching execute results

feat(duckdb): handle interval casts, broken for columns

feat(duckdb): shove literal handling up top

feat(duckdb): more timestamp ops

feat(duckdb): back to pandas output in execute

feat(duckdb): timezone handling in cast

feat(duckdb): ms and us epoch timestamp support

chore(duckdb): misc cleanup

feat(duckdb): initial create table

feat(duckdb): add _from_url

feat(duckdb): add read_parquet

feat(duckdb): add persistent cache

fix(duckdb): actually insert data if present in create_table

feat(duckdb): use duckdb API read_parquet

feat(duckdb): add read_csv

This, frustratingly, cannot use the Python API for `read_csv` since that
does not support list of files, for some reason.

fix(duckdb): dont fully qualify the table names

chore(duckdb): cleanup

chore(duckdb): mark broken test broken

fix(duckdb): fix read_parquet so it works

feat(duckdb): add to_pyarrow, to_pyarrow_batches, sql()

feat(duckdb): null checking

feat(duckdb): translate uints

fix(duckdb): fix file outputs and torch output

fix(duckdb): add rest of integer types

fix(duckdb): ops.InValues

feat(duckdb): use sqlglot expressions (maybe a big mistake)

fix(duckdb): don't stringify strings

feat(duckdb): use sqlglot expr instead of strings for count

fix(duckdb): fix isin

fix(duckdb): fix some agg variance functions

fix(duckdb): for logical equals, use sqlglot not operator

fix(duckdb): struct not tuple for struct type