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What this PR does / why we need it:

Pandas DataFrames use dtype=object for strings by default (not dtype=string), but Feast's type inference system didn't handle "object" dtype, causing it to fail when trying to convert string columns.

Which issue(s) this PR fixes:

Fixes #5641

@ntkathole ntkathole self-assigned this Oct 15, 2025
@ntkathole ntkathole requested a review from a team as a code owner October 15, 2025 14:31
object_string_test_view.infer_features()


def test_on_demand_features_invalid_type_inference():

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if this is invalid, shouldn't it raise?

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it's a negative test.

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There is with pytest.raises() sections which catch exceptions raised when mode is mismatched or feature is missing

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ooh nice i see on line 138, thank you.

Signed-off-by: ntkathole <nikhilkathole2683@gmail.com>
@franciscojavierarceo franciscojavierarceo merged commit dfbb743 into feast-dev:master Oct 15, 2025
17 of 18 checks passed
franciscojavierarceo pushed a commit that referenced this pull request Oct 27, 2025
# [0.56.0](v0.55.0...v0.56.0) (2025-10-27)

### Bug Fixes

* Add mode field to Transformation proto for proper serialization ([2390d2e](2390d2e))
* Date wise remote offline store historical data retrieval  ([#5686](#5686)) ([949ba3d](949ba3d))
* Fix STRING type handling in on-demand feature views ([#5669](#5669)) ([dfbb743](dfbb743))
* Fixed torch install issue in CI ([366e5a8](366e5a8))
* ODFV not getting counted in resource count ([1d640b6](1d640b6))
* Skip tag updates if user do not have permissions ([#5673](#5673)) ([0a951ce](0a951ce))

### Features

* Add document of Go feature server. ([#5697](#5697)) ([cbd1dde](cbd1dde))
* Add flexible commandArgs support for complete Feast CLI control ([#5678](#5678)) ([6414924](6414924))
* Add HDFS as a feature registry ([#5655](#5655)) ([4c65872](4c65872))
* Add nodeSelector to service config ([#5675](#5675)) ([9728cde](9728cde))
* Add OTEL based observability to the Go Feature Server ([#5685](#5685)) ([f4afdad](f4afdad))
* Added health endpoint for the UI ([#5665](#5665)) ([3aec5d5](3aec5d5))
* Added kuberay support ([e0b698d](e0b698d))
* Added support for filtering multi-projects ([#5688](#5688)) ([eb0a86e](eb0a86e))
* Batch Embedding at scale for RAG with Ray ([cc2a46d](cc2a46d))
* Optimize SQL entity handling without creating temporary tables ([#5695](#5695)) ([aa2c838](aa2c838))
* Support aggregation in odfv ([#5666](#5666)) ([564e965](564e965))
* Support cache_mode for registries ([021e9ea](021e9ea))
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Ondemand Feature with STRING type input fails on apply

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