Trait RelationalExecutor 

pub trait RelationalExecutor: Send + Sync {
    // Required methods
    fn scan(
        &self,
        table: &str,
        snapshot: SnapshotId,
    ) -> Result<Vec<VersionedRow>>;
    fn scan_filter(
        &self,
        table: &str,
        snapshot: SnapshotId,
        predicate: &dyn Fn(&VersionedRow) -> bool,
    ) -> Result<Vec<VersionedRow>>;
    fn point_lookup(
        &self,
        table: &str,
        col: &str,
        value: &Value,
        snapshot: SnapshotId,
    ) -> Result<Option<VersionedRow>>;
    fn insert(
        &self,
        tx: TxId,
        table: &str,
        values: HashMap<ColName, Value>,
    ) -> Result<RowId>;
    fn upsert(
        &self,
        tx: TxId,
        table: &str,
        conflict_col: &str,
        values: HashMap<ColName, Value>,
        snapshot: SnapshotId,
    ) -> Result<UpsertResult>;
    fn delete(&self, tx: TxId, table: &str, row_id: RowId) -> Result<()>;
}

Required Methods

fn scan(&self, table: &str, snapshot: SnapshotId) -> Result<Vec<VersionedRow>>

fn scan_filter( &self, table: &str, snapshot: SnapshotId, predicate: &dyn Fn(&VersionedRow) -> bool, ) -> Result<Vec<VersionedRow>>

fn point_lookup( &self, table: &str, col: &str, value: &Value, snapshot: SnapshotId, ) -> Result<Option<VersionedRow>>

fn insert( &self, tx: TxId, table: &str, values: HashMap<ColName, Value>, ) -> Result<RowId>

fn upsert( &self, tx: TxId, table: &str, conflict_col: &str, values: HashMap<ColName, Value>, snapshot: SnapshotId, ) -> Result<UpsertResult>

fn delete(&self, tx: TxId, table: &str, row_id: RowId) -> Result<()>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors