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SparkOptions

Struct SparkOptions 

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pub struct SparkOptions {
    pub map_key_dedup_policy: MapKeyDedupPolicy,
}
Expand description

Options controlling DataFusion’s Spark-compatibility layer (functions under datafusion/spark). Keys here mirror their spark.sql.* equivalents in Apache Spark.

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§map_key_dedup_policy: MapKeyDedupPolicy

Policy for handling duplicate keys in Spark-compatible map-construction functions (map_from_arrays, map_from_entries, str_to_map).

Mirrors Spark’s spark.sql.mapKeyDedupPolicy:

  • EXCEPTION (default): raise [DUPLICATED_MAP_KEY] at runtime on any duplicate key.
  • LAST_WIN: keep the last occurrence of each duplicate key.

Values are case-insensitive.

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impl Clone for SparkOptions

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fn clone(&self) -> SparkOptions

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl ConfigField for SparkOptions

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fn set(&mut self, key: &str, value: &str) -> Result<()>

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fn visit<V: Visit>( &self, v: &mut V, key_prefix: &str, _description: &'static str, )

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fn reset(&mut self, key: &str) -> Result<()>

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impl Debug for SparkOptions

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for SparkOptions

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl PartialEq for SparkOptions

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fn eq(&self, other: &SparkOptions) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for SparkOptions

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.