`ORDER BY` is much slower compared to SQLite

[penberg]

Limbo uses 14x the CPU:

penberg@vonneumann limbo % /usr/bin/time target/release/limbo testing/testing.db "SELECT id FROM users ORDER BY zipcode"
        0,15 real         0,14 user         0,01 sys

in comparison to SQLite:

penberg@vonneumann limbo % /usr/bin/time sqlite3 testing/testing.db "SELECT id FROM users ORDER BY zipcode"
        0,05 real         0,01 user         0,01 sys

[penberg]

Likely https://github.com/penberg/limbo/issues/203

[penberg]

No significant difference as of e1c8c676ca21490ec36ff13fb921db808861cd00:

        0.01 real         0.01 user         0.00 sys
limbo % /usr/bin/time target/release/tursodb --output-mode list testing/testing.db "SELECT id FROM users ORDER BY zipcode" > /dev/null
        0.05 real         0.02 user         0.01 sys

Closing