[native] Retrieve Json function metadata for prestissimo functions #22332

pramodsatya · 2024-03-26T05:16:47Z

Motivation and Context

For fail fast function validation in Prestissimo, the coordinator needs to know the list of function signatures that are supported by Prestissimo. This is so we can validate during parsing and analysis that a function is supported. In order to expose this, a new HTTP method is added that returns the function signatures supported by the Prestissimo worker.

The format of the functions should be a map of name to function signature. Name is a simple string. Function signature is a JSON object which matches the format of JsonBasedUdfFunctionMetadata in the Java code. All functions currently come from Velox, hence we need to retrieve the list of supported functions in Velox. This map is translated to a format that conforms to JsonBasedUdfFunctionMetadata and is serialized to JSON for consumption by the Java coordinator.

Description

For full context, see #23000

This PR adds a http endpoint /v1/functions to the sidecar, which returns the list of function signatures conforming to format JsonBasedUdfFunctionMetadata for all the registered Presto native functions.

Test Plan

Unit tests are added in FunctionMetadataTest.cpp. E2E tests will be added in a followup PR

== NO RELEASE NOTE ==

aditi-pandit · 2024-06-13T00:55:52Z

@pramodsatya : Please give more information about how this http method will be used in Presto server.

presto-native-execution/presto_cpp/main/types/FunctionMetadata.h

presto-native-execution/presto_cpp/main/types/tests/FunctionMetadataTest.cpp

presto-native-execution/presto_cpp/main/types/FunctionMetadata.cpp

pramodsatya

Thanks for the feedback @aditi-pandit, addressed the review comments. Could you please take another look?

mbasmanova

@pramodsatya Would you document the new endpoint somewhere in https://prestodb.io/docs/current/develop/worker-protocol.html ?

tdcmeehan · 2024-08-02T02:13:41Z

@mbasmanova we have started to document our endpoints using OpenAPI, and eventually all sidecar endpoints (and, hopefully all Presto endpoints) will have corresponding OpenAPI documentation.

mbasmanova · 2024-08-02T03:02:29Z

we have started to document our endpoints using OpenAPI, and eventually all sidecar endpoints (and, hopefully all Presto endpoints) will have corresponding OpenAPI documentation.

Sounds cool. Where can I see docs for the new endpoint?

aditi-pandit

@pramodsatya : The changes look good. Please add more test cases though... We should cover functions with different types, template parameters, array, map functions as well.

presto-native-execution/presto_cpp/presto_protocol/presto_protocol.yml

presto-native-execution/presto_cpp/main/types/FunctionMetadata.cpp

presto-native-execution/presto_cpp/main/types/tests/FunctionMetadataTest.cpp

steveburnett

Thanks for the doc! Pulled branch and made a local docs build. Some nits of capitalization, everything else looks fine.

presto-docs/src/main/sphinx/develop/worker-protocol.rst

czentgr

Thanks, I have a few comments.

presto-docs/src/main/sphinx/develop/sidecar-protocol.rst

presto-native-execution/presto_cpp/main/PrestoServer.cpp

presto-native-execution/presto_cpp/main/types/tests/CMakeLists.txt

presto-native-execution/presto_cpp/presto_protocol/presto_protocol.yml

presto-native-execution/presto_cpp/presto_protocol/special/Language.cpp.inc

pramodsatya · 2024-08-03T02:21:32Z

Thanks, I have a few comments.

Thanks for the feedback @czentgr, I have addressed the comments. Could you please take another look?

steveburnett · 2024-08-15T16:36:42Z

Hi @steveburnett, @tdcmeehan shared that the OpenAPI documentation for this endpoint will be added in: #23358 , so I reverted the previous documentation. Would that be fine?

Thanks @pramodsatya, I missed that! I thought there was probably a good reason for it that I had overlooked and didn't know what it was. Yes, that's fine with me, and I appreciate your explanation.

aditi-pandit · 2024-08-22T16:13:26Z

@pramodsatya : Please can you rebase your code. I'll continue with the review then.

pramodsatya · 2024-08-22T23:11:28Z

@pramodsatya : Please can you rebase your code. I'll continue with the review then.

Thanks @aditi-pandit, rebased and fixed the CI failures.

aditi-pandit · 2024-09-06T05:53:07Z

presto-native-execution/presto_cpp/presto_protocol/presto_protocol.yml

Agree that there isn't particular organization in this file. But we should make it in alphabetical order. Will send out a PR for it.

presto-native-execution/presto_cpp/main/types/FunctionMetadata.cpp

presto-native-execution/presto_cpp/main/types/tests/FunctionMetadataTest.cpp

aditi-pandit · 2024-09-25T05:59:50Z

@pramodsatya : This code looks good.

@czentgr : Would be great if you did a pass as well. Will give approval once you give a heads-up.

czentgr

One thought and one nit.

presto-native-execution/presto_cpp/main/PrestoServer.cpp

presto-native-execution/presto_cpp/main/types/FunctionMetadata.cpp

pramodsatya

Thanks for the feedback @czentgr @aditi-pandit. Consolidated the sidecar endpoints to a single function, also added a helper function to identify and exclude function signatures with unsupported Presto types (hugeint is currently unsupported in Presto). Could you please take another look?

presto-native-execution/presto_cpp/main/PrestoServer.cpp

aditi-pandit

@pramodsatya : Have 2 minor comments. Rest is looking good.

presto-native-execution/presto_cpp/main/PrestoServer.cpp

presto-native-execution/presto_cpp/main/types/tests/TestUtils.cpp

pramodsatya

Thanks for the feedback @aditi-pandit, addressed the comments. Could you please take another look?

presto-native-execution/presto_cpp/main/types/tests/TestUtils.cpp

aditi-pandit

Thanks @pramodsatya

Please can you also add a link to the documentation of the API.

pdabre12 · 2024-10-21T17:13:04Z

@aditi-pandit
The OpenAPI documentation for the endpoint should be added in this PR: #23358

pramodsatya requested review from tdcmeehan, czentgr and aditi-pandit March 26, 2024 05:16

pramodsatya mentioned this pull request Mar 26, 2024

feat: Add companionFunction to function metadata facebookincubator/velox#9250

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pramodsatya added 2 commits October 17, 2024 10:09

[native] Update presto_protocol

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[native] Retrieve Json function metadata

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pramodsatya merged commit bba64ad into prestodb:master Oct 21, 2024
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pramodsatya deleted the fn_metadata branch October 21, 2024 17:39

zuyu mentioned this pull request Oct 22, 2024

[native] Update gtest targets for presto_function_metadata_test #23866

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[native] Retrieve Json function metadata for prestissimo functions #22332

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[native] Retrieve Json function metadata for prestissimo functions #22332

[native] Retrieve Json function metadata for prestissimo functions #22332

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Motivation and Context

Description

Test Plan

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