Bingyi SunandGitHub 88f357a345 enhance: add switch for query driver prefetch (#51081) ...

issue: #51252

## What
- Add `common.enableDriverPrefetch` with default `false`.
- Wire the config into segcore via initcore and a refresh callback.
- Skip `Driver::PrefetchAsync()` when the switch is disabled.

## Why
This provides a runtime mitigation for regressions caused by query
driver operator prefetch on short scalar queries, while keeping prefetch
configurable for follow-up validation.

## Notes
When disabled, expression execution path determination still runs lazily
on the query thread; this only disables driver-level async prefetch
submission/waiting.

## Tests
- `make generate-yaml`
- `CLANG_FORMAT=/opt/homebrew/opt/llvm@15/bin/clang-format
internal/core/run_clang_format.sh internal/core`
- `make lint-fix`

Signed-off-by: sunby <sunbingyi1992@gmail.com>

2026-07-10 18:06:34 +08:00

..

init_core_test.go

enhance: stream field data loading (#50478)

2026-06-26 10:34:26 +08:00

init_core.go

enhance: add switch for query driver prefetch (#51081)

2026-07-10 18:06:34 +08:00

query_node.go

enhance: add switch for query driver prefetch (#51081)

2026-07-10 18:06:34 +08:00

test_util.go

enhance: unify filesystem access through FilesystemCache, remove ArrowFileSystemSingleton (#49521)

2026-05-08 14:42:07 +08:00

util.go

enhance: add switch for query driver prefetch (#51081)

2026-07-10 18:06:34 +08:00