Enum ViewChange 

pub enum ViewChange {
    Create(View),
    Drop(QualifiedName),
    ReplaceBody {
        source: View,
        catalog: View,
        strategy: BodyReplaceStrategy,
    },
    SetReloption {
        qname: QualifiedName,
        security_barrier: Option<bool>,
        security_invoker: Option<bool>,
    },
    SetComment {
        qname: QualifiedName,
        comment: Option<String>,
    },
    SetColumnComment {
        qname: QualifiedName,
        column: Identifier,
        comment: Option<String>,
    },
}

A structural change to a single view.

Variants

Create(View)

Create a new view.

Drop(QualifiedName)

Drop an existing view.

ReplaceBody

Replace the SELECT body of a view.

strategy is BodyReplaceStrategy::InPlace when Postgres’s CREATE OR REPLACE VIEW rules are satisfied (same column names and types at the same indexes, with new columns only appended at the end). Otherwise it is BodyReplaceStrategy::Recreate and the planner must DROP then re-CREATE the view (and rebuild its dependents).

Fields

source: View

The view as it should exist (source SQL).

catalog: View

The view as it currently exists (live catalog).

strategy: BodyReplaceStrategy

How the body change is applied (in-place vs. drop + recreate).

SetReloption

Change WITH (security_barrier = ..., security_invoker = ...) reloptions.

Fields

qname: QualifiedName

View qname.

security_barrier: Option<bool>

Desired security_barrier value (None clears the option).

security_invoker: Option<bool>

Desired security_invoker value (None clears the option).

SetComment

Set (or clear) the view-level COMMENT ON VIEW.

Fields

qname: QualifiedName

View qname.

comment: Option<String>

New comment (None clears the comment).

SetColumnComment

Set (or clear) a COMMENT ON COLUMN view.col.

Fields

qname: QualifiedName

View qname.

column: Identifier

Column name.

comment: Option<String>

New comment (None clears the comment).

Trait Implementations

impl Clone for ViewChange

fn clone(&self) -> ViewChange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ViewChange

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ViewChange

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ViewChange

impl PartialEq for ViewChange

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

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

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 Serialize for ViewChange

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ViewChange