Enum PatchsetOp 

pub enum PatchsetOp<'a, T, S, B> {
    Insert {
        table: &'a T,
        values: &'a [Value<S, B>],
        indirect: bool,
    },
    Update {
        table: &'a T,
        pk: &'a [Value<S, B>],
        entries: &'a [PatchsetUpdateEntry<S, B>],
        indirect: bool,
    },
    Delete {
        table: &'a T,
        pk: &'a [Value<S, B>],
        indirect: bool,
    },
}

View over one operation in a patchset.

Variants

Insert

INSERT. Carries every column’s value in column order.

Fields

table: &'a T

Table this row belongs to.

values: &'a [Value<S, B>]

Full row values, one per column.

indirect: bool

SQLite session-extension indirect flag.

Update

UPDATE. Carries primary-key values plus a (unit, new) entry per non-PK column. The unit reflects the patchset format’s missing old-value storage; consumers can map |(_, v)| v to walk just the new values.

Fields

table: &'a T

Table this row belongs to.

pk: &'a [Value<S, B>]

Primary-key column values for the row being updated.

entries: &'a [PatchsetUpdateEntry<S, B>]

(unit, new) entries, one per column.

indirect: bool

SQLite session-extension indirect flag.

Delete

DELETE. Carries only the primary-key columns; the rest of the old row is not stored in patchset format.

Fields

table: &'a T

Table this row belongs to.

pk: &'a [Value<S, B>]

Primary-key column values for the row being deleted.

indirect: bool

SQLite session-extension indirect flag.

Implementations

impl<'a, T, S, B> PatchsetOp<'a, T, S, B>

pub fn table(&self) -> &'a T

Returns the schema of the table this operation applies to.

pub fn indirect(&self) -> bool

Returns the SQLite session-extension indirect flag.

pub fn update_new_values(&self) -> Option<Vec<&'a Option<Value<S, B>>>>

For an Update op, returns the new values per column (with the unit dropped). Returns None for Insert and Delete.

Trait Implementations

impl<'a, T: Debug, S: Debug, B: Debug> Debug for PatchsetOp<'a, T, S, B>

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

Formats the value using the given formatter.