enhance: speed up search iterator stage 1

[PwzXxm]

issue: #37548

[sre-ci-robot]

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[mergify[bot]]

@PwzXxm cpp-unit-test check failed, comment rerun cpp-unit-test can trigger the job again.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 93.00000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 82.94%. Comparing base (61f73d5) to head (9f6b887). Report is 2 commits behind head on master.

:exclamation: Current head 9f6b887 differs from pull request most recent head e7d1366

Please upload reports for the commit e7d1366 to get more accurate results.

Files with missing lines	Patch %	Lines
internal/proxy/search_util.go	89.39%	5 Missing and 2 partials :warning:

Additional details and impacted files

[](https://app.codecov.io/gh/milvus-io/milvus/pull/37947?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=milvus-io) ```diff @@ Coverage Diff @@ ## master #37947 +/- ## ========================================== + Coverage 81.06% 82.94% +1.88% ========================================== Files 1369 1080 -289 Lines 190968 165569 -25399 ========================================== - Hits 154812 137335 -17477 + Misses 30661 22736 -7925 - Partials 5495 5498 +3 ``` | [Components](https://app.codecov.io/gh/milvus-io/milvus/pull/37947/components?src=pr&el=components&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=milvus-io) | Coverage Δ | | |---|---|---| | [Client](https://app.codecov.io/gh/milvus-io/milvus/pull/37947/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=milvus-io) | `73.67% <ø> (ø)` | | | [Core](https://app.codecov.io/gh/milvus-io/milvus/pull/37947/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=milvus-io) | `∅ <ø> (∅)` | | | [Go](https://app.codecov.io/gh/milvus-io/milvus/pull/37947/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=milvus-io) | `83.20% <93.00%> (+<0.01%)` | :arrow_up: | | [Files with missing lines](https://app.codecov.io/gh/milvus-io/milvus/pull/37947?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=milvus-io) | Coverage Δ | | |---|---|---| | [internal/proxy/proxy.go](https://app.codecov.io/gh/milvus-io/milvus/pull/37947?src=pr&el=tree&filepath=internal%2Fproxy%2Fproxy.go&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=milvus-io#diff-aW50ZXJuYWwvcHJveHkvcHJveHkuZ28=) | `70.95% <100.00%> (+0.62%)` | :arrow_up: | | [internal/proxy/task.go](https://app.codecov.io/gh/milvus-io/milvus/pull/37947?src=pr&el=tree&filepath=internal%2Fproxy%2Ftask.go&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=milvus-io#diff-aW50ZXJuYWwvcHJveHkvdGFzay5nbw==) | `87.03% <ø> (ø)` | | | [internal/proxy/task\_search.go](https://app.codecov.io/gh/milvus-io/milvus/pull/37947?src=pr&el=tree&filepath=internal%2Fproxy%2Ftask_search.go&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=milvus-io#diff-aW50ZXJuYWwvcHJveHkvdGFza19zZWFyY2guZ28=) | `76.50% <100.00%> (+0.55%)` | :arrow_up: | | [internal/proxy/search\_util.go](https://app.codecov.io/gh/milvus-io/milvus/pull/37947?src=pr&el=tree&filepath=internal%2Fproxy%2Fsearch_util.go&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=milvus-io#diff-aW50ZXJuYWwvcHJveHkvc2VhcmNoX3V0aWwuZ28=) | `82.31% <89.39%> (+0.94%)` | :arrow_up: | ... and [311 files with indirect coverage changes](https://app.codecov.io/gh/milvus-io/milvus/pull/37947/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=milvus-io)

[PwzXxm]

rerun cpp-unit-test

[mergify[bot]]

@PwzXxm cpp-unit-test check failed, comment rerun cpp-unit-test can trigger the job again.

[mergify[bot]]

@PwzXxm E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify[bot]]

@PwzXxm go-sdk check failed, comment rerun go-sdk can trigger the job again.

[mergify[bot]]

@PwzXxm cpp-unit-test check failed, comment rerun cpp-unit-test can trigger the job again.

[mergify[bot]]

@PwzXxm cpp-unit-test check failed, comment rerun cpp-unit-test can trigger the job again.

[mergify[bot]]

@PwzXxm E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify[bot]]

@PwzXxm cpp-unit-test check failed, comment rerun cpp-unit-test can trigger the job again.

[PwzXxm]

/hold

[PwzXxm]

/unhold Rename iterator token to iterator id

[mergify[bot]]

@PwzXxm cpp-unit-test check failed, comment rerun cpp-unit-test can trigger the job again.

[mergify[bot]]

@PwzXxm E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[MrPresent-Han]

/lgtm

[PwzXxm]

/hold wait for inputs from @czs007 about backwards compatibility. New SDK -> Old Milvus Server

[PwzXxm]

/unhold If the user uses New SDK and an old version of Milvus, the following message will show using pymilvus

The server does not support Search Iterator V2. Please upgrade your Milvus server, or create a search_iterator with use_v1=True instead

[PwzXxm]

/run-cpu-e2e

[sre-ci-robot]

New changes are detected. LGTM label has been removed.

[mergify[bot]]

@PwzXxm go-sdk check failed, comment rerun go-sdk can trigger the job again.

[mergify[bot]]

@PwzXxm cpp-unit-test check failed, comment rerun cpp-unit-test can trigger the job again.