Error6 reports
Fix SelectQueryError
in Supabase Auth
✅ Solution
SelectQueryError in supabase-auth usually arises from type mismatches when the TypeScript compiler infers incorrect types after a database operation like `rpc()` or joins involving different schemas. To fix it, explicitly cast the returned data to the correct TypeScript type using `as` or define a more specific function return type using generics, ensuring the compiler understands the structure of the data you're selecting. This guarantees the expected schema and data types are aligned, resolving the mismatch.
Related Issues
Real GitHub issues where developers encountered this error:
RPC fails with select when returning from another schema.Nov 10, 2025
TypeScript SelectQueryError when selecting embedding resources after rpc()Apr 22, 2025
Nested inner join invalid Typescript types for foreign keysApr 1, 2025
Types for join involving Computed Relationships do not workFeb 14, 2025
Supabase type error when querying computed field of rpc resultJan 28, 2025
Timeline
First reported:Jan 28, 2025
Last reported:Nov 10, 2025
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