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Table

Struct Table 

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pub struct Table {
    pub name: String,
    pub columns: Vec<Column>,
    /* private fields */
}

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§name: String§columns: Vec<Column>

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impl Table

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pub fn new(name: &str, columns: Vec<Column>) -> Result<Table, DbError>

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pub fn row_count(&self) -> usize

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pub fn column_index(&self, name: &str) -> Result<usize, DbError>

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pub fn coerce_val(&self, val: &Value, col_idx: usize) -> Result<Value, DbError>

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pub fn insert_row(&mut self, values: Vec<Value>) -> Result<u64, DbError>

Insert a fully-validated row value vector; maintains indexes.

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pub fn delete_row(&mut self, rid: u64) -> Result<(), DbError>

Remove a row by id; also removes its index entries.

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pub fn get_row(&self, rid: u64) -> Option<&Row>

Get a row by id.

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pub fn scan(&self) -> impl Iterator<Item = (u64, &Row)>

Iterate (rid, row) over live slots in slot order.

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pub fn replace_row(&mut self, rid: u64, new: Vec<Value>) -> Result<(), DbError>

Replace a row’s values in place, removing old index entries and inserting new ones. Caller is responsible for constraint validation.

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pub fn rebuild_indexes(&mut self)

Lazy rebuild of unique/pk indexes — used when row store is bulk-loaded or after operations that bypass per-row index maintenance.

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pub fn has_pk(&self, v: &Value) -> bool

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pub fn unique_tree(&self, col_idx: usize) -> Option<&BTree>

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pub fn create_index( &mut self, name: &str, column: usize, unique: bool, ) -> Result<(), DbError>

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pub fn drop_index(&mut self, name: &str) -> bool

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pub fn has_index(&self, name: &str) -> bool

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pub fn index(&self, column: usize) -> Option<&Index>

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pub fn lookup_eq_index( &self, column: usize, key: &Value, ) -> Option<(String, Vec<u64>)>

Look up row ids through the best equality index for a column.

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pub fn lookup_range_index( &self, column: usize, low: Option<&Value>, high: Option<&Value>, ) -> Option<(String, Vec<u64>)>

Return row ids in an inclusive candidate range. Strict comparison boundaries are handled by the residual WHERE predicate.

Trait Implementations§

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impl Clone for Table

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fn clone(&self) -> Table

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl Freeze for Table

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impl RefUnwindSafe for Table

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impl Send for Table

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impl Sync for Table

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impl Unpin for Table

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impl UnsafeUnpin for Table

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impl UnwindSafe for Table

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more