Add ST_Relate implementation using GEOS#691
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Mehak3010 wants to merge 6 commits intoapache:mainfrom
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petern48
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Mar 10, 2026
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I know you're still working on this, but I figured I'd leave a bit of hints to help guide you along the way.
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It looks like you've deleted many files in the submodules, presumably accidentally. This is causing CI failures. Could you revert these deletions?
Don't be afraid to ask if you need help with figuring out how to undo this.
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In addition to the actual rust implementation. We're going to need to add Rust tests in this file as well as python integration tests. You can take a look at this example PR (#288) to guide you if you'd like.
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This PR implements the
ST_Relatefunction using the GEOSrelateoperation to compute the DE-9IM (Dimensionally Extended 9-Intersection Model) relationship between two geometries. The implementation integrates with the existing GEOS execution framework in Sedona and returns the resulting DE-9IM intersection matrix as a UTF-8 text string. The changes include adding the GEOS kernel implementation insedona-geos,creating the corresponding scalar UDF wrapper insedona-functions,and registering the function so it can be used through the SQL interface. This enables users to evaluate spatial relationships between geometries and obtain the DE-9IM matrix representation directly. This work addresses issue #539 and is part of the broader implementation tracked in #174.