Struct kubos_telemetry_db::telemetry::columns::value

pub struct value;

Trait Implementations

impl Clone for value

fn clone(&self) -> value

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Column for value

type Table = table

The table which this column belongs to

const NAME: &'static str = _

The name of this column

impl Debug for value

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

Formats the value using the given formatter.

impl Default for value

fn default() -> value

Returns the “default value” for a type.

impl Expression for value

type SqlType = Text

The type that this expression represents in SQL

impl<DB> QueryFragment<DB> for value where
    DB: Backend,
    <table as QuerySource>::FromClause: QueryFragment<DB>, 

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

Walk over this QueryFragment for all passes.

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

Converts this QueryFragment to its SQL representation.

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

Serializes all bind parameters in this query.

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

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

impl QueryId for value

type QueryId = value

A type which uniquely represents Self in a SQL query.

const HAS_STATIC_QUERY_ID: bool = true

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

fn query_id() -> Option<TypeId>

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

impl<QS> AppearsOnTable<QS> for value where
    QS: AppearsInFromClause<table, Count = Once>, 

impl Copy for value

impl NonAggregate for value

impl SelectableExpression<table> for value