Struct WithQuery 

pub struct WithQuery<Q, Bindings> { /* private fields */ }

Query wrapper that prepends ClickHouse scalar WITH aliases.

Implementations

impl<Q, Bindings> WithQuery<Q, Bindings>

pub fn and_with_alias<Expr>( self, expr: Expr, alias: impl Into<String>, ) -> WithQuery<Q, WithBinding<Bindings, Expr>>

where Expr: Expression,

Add another scalar WITH expr AS alias binding.

pub fn and_with_cte<Cte>( self, alias: impl Into<String>, cte: Cte, ) -> WithQuery<Q, WithCteBinding<Bindings, Cte>>

Add another common table expression binding.

pub fn and_with_materialized_cte<Cte>( self, alias: impl Into<String>, cte: Cte, ) -> WithQuery<Q, WithCteBinding<Bindings, Cte>>

Add another materialized common table expression binding.

Trait Implementations

impl<Q: Clone, Bindings: Clone> Clone for WithQuery<Q, Bindings>

fn clone(&self) -> WithQuery<Q, Bindings>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Q: Debug, Bindings: Debug> Debug for WithQuery<Q, Bindings>

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

Formats the value using the given formatter.

impl<Q, Bindings> Query for WithQuery<Q, Bindings>

where Q: Query,

type SqlType = <Q as Query>::SqlType

The SQL type that this query represents.

impl<Q, Bindings> QueryFragment<ClickHouse> for WithQuery<Q, Bindings>

where Q: QueryFragment<ClickHouse>, Bindings: WithBindings,

fn walk_ast<'b>(&'b self, out: AstPass<'_, 'b, ClickHouse>) -> QueryResult<()>

Walk over this QueryFragment for all passes.

fn to_sql( &self, out: &mut <DB as Backend>::QueryBuilder, backend: &DB, ) -> Result<(), Error>

Converts this QueryFragment to its SQL representation.

fn collect_binds<'b>( &'b self, out: &mut <DB as Backend>::BindCollector<'b>, metadata_lookup: &mut <DB as TypeMetadata>::MetadataLookup, backend: &'b DB, ) -> Result<(), Error>

Serializes all bind parameters in this query.

fn is_safe_to_cache_prepared(&self, backend: &DB) -> Result<bool, Error>

Is this query safe to store in the prepared statement cache?

fn is_noop(&self, backend: &DB) -> Result<bool, Error>

Does walking this AST have any effect?

impl<Q, Bindings> QueryId for WithQuery<Q, Bindings>

where Q: QueryId,

const HAS_STATIC_QUERY_ID: bool = false

Can the SQL generated by Self be uniquely identified by its type?

type QueryId = WithQuery<<Q as QueryId>::QueryId, ()>

A type which uniquely represents Self in a SQL query.

fn query_id() -> Option<TypeId>

Returns the type id of Self::QueryId if Self::HAS_STATIC_QUERY_ID. Returns None otherwise.

impl<Q, Bindings, Conn> RunQueryDsl<Conn> for WithQuery<Q, Bindings>

fn execute(self, conn: &mut Conn) -> Result<usize, Error>

where Conn: Connection, Self: ExecuteDsl<Conn>,

Executes the given command, returning the number of rows affected.

fn load<'query, U>(self, conn: &mut Conn) -> Result<Vec<U>, Error>

where Self: LoadQuery<'query, Conn, U>,

Executes the given query, returning a Vec with the returned rows.

fn load_iter<'conn, 'query, U, B>( self, conn: &'conn mut Conn, ) -> Result<Self::RowIter<'conn>, Error>

where 'query: 'conn, U: 'conn, Self: LoadQuery<'query, Conn, U, B> + 'conn,

Executes the given query, returning an Iterator with the returned rows.

fn get_result<'query, U>(self, conn: &mut Conn) -> Result<U, Error>

where Self: LoadQuery<'query, Conn, U>,

Runs the command, and returns the affected row.

fn get_results<'query, U>(self, conn: &mut Conn) -> Result<Vec<U>, Error>

where Self: LoadQuery<'query, Conn, U>,

Runs the command, returning an Vec with the affected rows.

impl<Q: Copy, Bindings: Copy> Copy for WithQuery<Q, Bindings>