supabase / etl / 28598256497

74%

Build Type

push

github

Committed by web-flow

Commit Message

Avoid an extra schema clone during row decoding (#868)

Move the ready `ReplicatedTableSchema` out of the cloned
`SharedTableState` instead of cloning it again. This keeps the cache
lock boundary unchanged and removes one shallow schema clone from
row-event schema lookup.

Criterion isolated schema lookup benchmark:

```
before: 29.730 ns mean, 29.410-30.116 ns confidence interval
after: 20.727 ns mean, 20.458-21.002 ns confidence interval
change: 30.28% faster, 1.43x speedup
```

Verification:

```
cargo x fmt
cargo test -p etl --features test-utils --lib
```

Coverage Stats

2 of 5 new or added lines in 1 file covered. (40.0%)

1 existing line in 1 file now uncovered.

40087 of 54462 relevant lines covered (73.61%)

34247.58 hits per line