Is your feature request related to a problem or challenge?
Description
Apache DataFusion currently follows permissive SQL semantics for many runtime errors (for example, invalid casts, arithmetic overflow, division by zero, and malformed input). To improve SQL compatibility and make behavior configurable, DataFusion should support an ANSI SQL evaluation mode.
ANSI mode would cause operations that encounter invalid input or runtime errors to return an error instead of silently producing NULL or another permissive result. This behavior is expected by users migrating from systems that support ANSI SQL semantics (such as Spark SQL with ANSI mode enabled) and enables stricter correctness guarantees.
Supporting ANSI mode should provide:
- A configurable session-level ANSI mode.
- Consistent error semantics across expressions and built-in functions.
- Preservation of existing permissive behavior when ANSI mode is disabled.
This issue tracks adding the infrastructure and expression/function changes required to support ANSI mode throughout DataFusion.
The initial effort started with adding DataFusion parameter #18635 which is false by default
pub enable_ansi_mode: bool, default = false
Describe the solution you'd like
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Describe alternatives you've considered
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Additional context
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Is your feature request related to a problem or challenge?
Description
Apache DataFusion currently follows permissive SQL semantics for many runtime errors (for example, invalid casts, arithmetic overflow, division by zero, and malformed input). To improve SQL compatibility and make behavior configurable, DataFusion should support an ANSI SQL evaluation mode.
ANSI mode would cause operations that encounter invalid input or runtime errors to return an error instead of silently producing
NULLor another permissive result. This behavior is expected by users migrating from systems that support ANSI SQL semantics (such as Spark SQL with ANSI mode enabled) and enables stricter correctness guarantees.Supporting ANSI mode should provide:
This issue tracks adding the infrastructure and expression/function changes required to support ANSI mode throughout DataFusion.
The initial effort started with adding DataFusion parameter #18635 which is false by default
Describe the solution you'd like
No response
Describe alternatives you've considered
No response
Additional context
No response