Enum mz_sql :: plan :: QueryWhen Copy item path

Immediately

The peek should occur at the latest possible timestamp that allows the peek to complete immediately.

FreshestTableWrite

The peek should occur at a timestamp that allows the peek to see all data written to tables within Materialize.

AtTimestamp(MirScalarExpr)

The peek should occur at the timestamp described by the specified expression.

The expression may have any type.

AtLeastTimestamp(MirScalarExpr)

Same as Immediately, but will also advance to at least the specified expression.

Implementations§

impl QueryWhen

pub fn advance_to_timestamp(&self) -> Option<MirScalarExpr>

Returns a timestamp to which the candidate must be advanced.

pub fn advance_to_since(&self) -> bool

Returns whether the candidate must be advanced to the since.

pub fn can_advance_to_upper(&self) -> bool

Returns whether the candidate can be advanced to the upper.

pub fn can_advance_to_timeline_ts(&self) -> bool

Returns whether the candidate can be advanced to the timeline’s timestamp.

pub fn must_advance_to_timeline_ts(&self) -> bool

Returns whether the candidate must be advanced to the timeline’s timestamp.

pub fn is_transactional(&self) -> bool

Returns whether the selected timestamp should be tracked within the current transaction.

Trait Implementations§

impl Clone for QueryWhen

fn clone(&self) -> QueryWhen

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl Debug for QueryWhen

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

Formats the value using the given formatter. Read more

impl<'de> Deserialize<'de> for QueryWhen

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

Deserialize this value from the given Serde deserializer. Read more

impl PartialEq for QueryWhen

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

Tests for self and other values to be equal, and is used by ==.

1.0.0 · source§

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

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

impl StructuralPartialEq for QueryWhen

Auto Trait Implementations§

impl UnwindSafe for QueryWhen

Blanket Implementations§

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where T: 'static + ?Sized,

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🔬This is a nightly-only experimental API. (clone_to_uninit)

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

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

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