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RowGroupPredicate

laminar_connectors::schema::parquet

Enum RowGroupPredicate 

Source 
pub enum RowGroupPredicate {
    Eq {
        column: String,
        value: String,
    },
    Gt {
        column: String,
        value: String,
    },
    Lt {
        column: String,
        value: String,
    },
    Between {
        column: String,
        low: String,
        high: String,
    },
    And(Vec<RowGroupPredicate>),
    Or(Vec<RowGroupPredicate>),
}
Expand description

Predicate for row-group level filtering.

Evaluated against row-group statistics to skip entire row groups that cannot contain matching rows.

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Eq

Column equals value (statistics min <= value <= max).

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§column: String

Column name.

§value: String

Comparison value as string (parsed per column type).

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Gt

Column greater than value (statistics max > value).

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§column: String

Column name.

§value: String

Comparison value.

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Lt

Column less than value (statistics min < value).

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§column: String

Column name.

§value: String

Comparison value.

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Between

Column in range [low, high].

Fields

§column: String

Column name.

§low: String

Low bound (inclusive).

§high: String

High bound (inclusive).

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And(Vec<RowGroupPredicate>)

Logical AND of predicates.

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Or(Vec<RowGroupPredicate>)

Logical OR of predicates.

Trait Implementations§

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impl Clone for RowGroupPredicate

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fn clone(&self) -> RowGroupPredicate

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

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

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

Formats the value using the given formatter. Read more

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