fallintoplace opened a new pull request, #1944: URL: https://github.com/apache/iceberg-go/pull/1944
## Summary - Use `Schema.NumFields()` for the projected ID slice capacity. - Avoid the extra defensive deep clone from `Schema.Fields()`. - Keep the existing wildcard traversal and nested collection projection rules. - Add a focused remote wildcard projection benchmark. ## Benchmark Median of 5 runs on an Apple M1 Pro with `GOMAXPROCS=1`. The benchmark uses nested structs, lists, maps, and default values. Command: ```text GOMAXPROCS=1 go test -run '^$' -bench '^BenchmarkRemotePlanningSelectedFields$' -benchmem -benchtime=500ms -count=5 ./table ``` | Top-level fields | Before | After | Speedup | | --- | ---: | ---: | ---: | | 100 | 152 us/op | 76.6 us/op | 1.99x | | 1,000 | 1.43 ms/op | 750 us/op | 1.91x | | 5,000 | 6.78 ms/op | 3.63 ms/op | 1.87x | Memory dropped by about 47% and allocations dropped by about 50%: - 5,000 fields: 8.52 MB/op and 60,005 allocs/op -> 4.49 MB/op and 30,005 allocs/op ## Checks - `go test . -count=1` - `go test ./table/... -count=1` - All non-cloud packages pass - `go vet ./...` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
