Enum VirtualFilter 

pub enum VirtualFilter {
    Eq(String, SochValue),
    Ne(String, SochValue),
    Lt(String, SochValue),
    Le(String, SochValue),
    Gt(String, SochValue),
    Ge(String, SochValue),
    Like(String, String),
    In(String, Vec<SochValue>),
    Between(String, SochValue, SochValue),
    IsNull(String),
    IsNotNull(String),
    And(Vec<VirtualFilter>),
    Or(Vec<VirtualFilter>),
    Not(Box<VirtualFilter>),
}

Filter for virtual table scans

Variants

Eq(String, SochValue)

Equality: column = value

Ne(String, SochValue)

Not equal: column != value

Lt(String, SochValue)

Less than: column < value

Le(String, SochValue)

Less than or equal: column <= value

Gt(String, SochValue)

Greater than: column > value

Ge(String, SochValue)

Greater than or equal: column >= value

Like(String, String)

Like pattern: column LIKE pattern

In(String, Vec<SochValue>)

In set: column IN (values)

Between(String, SochValue, SochValue)

Between: column BETWEEN low AND high

IsNull(String)

Is null: column IS NULL

IsNotNull(String)

Is not null: column IS NOT NULL

And(Vec<VirtualFilter>)

AND of filters

Or(Vec<VirtualFilter>)

OR of filters

Not(Box<VirtualFilter>)

NOT of filter

Implementations

impl VirtualFilter

pub fn from_where_clause(where_clause: &WhereClause) -> Self

Convert from WHERE clause

pub fn matches(&self, row: &VirtualRow, schema: &VirtualTableSchema) -> bool

Evaluate filter against a row

Trait Implementations

impl Clone for VirtualFilter

fn clone(&self) -> VirtualFilter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VirtualFilter

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

Formats the value using the given formatter.