Enum ColumnBounds

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pub enum ColumnBounds {
    NoOrder,
    Uint8(Bounds<u8>),
    TinyInt(Bounds<i8>),
    SmallInt(Bounds<i16>),
    Int(Bounds<i32>),
    BigInt(Bounds<i64>),
    Int128(Bounds<i128>),
    TimestampTZ(Bounds<i64>),
}
Expand description

Column metadata storing the bounds for column types that have order.

Other Ord column variants do exist (like Scalar/Boolean). However, bounding these is useless unless we are performing indexing on these columns. This functionality only be considered after we support them in the user-facing sql.

Variants§

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NoOrder

Column does not have order.

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Uint8(Bounds<u8>)

The bounds of a Uint8 column.

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TinyInt(Bounds<i8>)

The bounds of a TinyInt column.

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SmallInt(Bounds<i16>)

The bounds of a SmallInt column.

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Int(Bounds<i32>)

The bounds of an Int column.

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BigInt(Bounds<i64>)

The bounds of a BigInt column.

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Int128(Bounds<i128>)

The bounds of an Int128 column.

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TimestampTZ(Bounds<i64>)

The bounds of a Timestamp column.

Implementations§

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impl ColumnBounds

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pub fn from_column(column: &CommittableColumn<'_>) -> ColumnBounds

Construct a ColumnBounds from a column by reference.

If the column variant has order, only the minimum and maximum value will be copied.

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pub fn try_union(self, other: Self) -> Result<Self, ColumnBoundsMismatch>

Combine two ColumnBounds as if their source collections are being unioned.

Can error if the two values do not share the same ColumnBounds variant.

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pub fn try_difference(self, other: Self) -> Result<Self, ColumnBoundsMismatch>

Combine two ColumnBounds as if their source collections are being differenced.

This should be interpreted as the set difference of the two collections. The result would be the rows in self that are not also rows in other.

Trait Implementations§

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impl Clone for ColumnBounds

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fn clone(&self) -> ColumnBounds

Returns a duplicate of the value. Read more
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const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ColumnBounds

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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<'de> Deserialize<'de> for ColumnBounds

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq for ColumnBounds

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

Tests for self and other values to be equal, and is used by ==.
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const fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for ColumnBounds

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Copy for ColumnBounds

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impl Eq for ColumnBounds

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impl StructuralPartialEq for ColumnBounds

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impl<T> Any for T
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🔬This is a nightly-only experimental API. (clone_to_uninit)
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fn equivalent(&self, key: &K) -> bool

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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Causes self to use its Binary implementation when Debug-formatted.
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where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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