Enum DataSource 

pub enum DataSource {
    CteQuery(CteDataSource),
    Table(TableDataSource),
    View(ViewDataSource),
    JoinExpr(Box<JoinExprDataSource>),
    SubQuery(Box<SubQueryDataSource>),
    CallTableFunc(TableFunctionDataSource),
    UndefinedTableFunc(UndefinedTableFuncDataSource),
    RowFunctions(DataSourceRowFunctions),
    RangeTableSample(),
    Unknown(String, AliasSpec),
}

from / join sources

Variants

CteQuery(CteDataSource)

from CTE defined set

Table(TableDataSource)

from a table

View(ViewDataSource)

from a view

JoinExpr(Box<JoinExprDataSource>)

join expression

SubQuery(Box<SubQueryDataSource>)

sub-query

CallTableFunc(TableFunctionDataSource)

table function

UndefinedTableFunc(UndefinedTableFuncDataSource)

table function as source but not found

RowFunctions(DataSourceRowFunctions)

ROWS clause

RangeTableSample()

range table sampling

Unknown(String, AliasSpec)

view or table or CTE not found

Implementations

impl DataSource

pub fn analyze_from_clause_node<TParseContext>( context: TParseContext, with_clause: &WithClause, from_clause: &FromClause, node: Node, tokens: &IVec<ScanToken>, ) -> Result<(Self, TParseContext), AnalysisError>

where TParseContext: ParseContext,

semantic analyze from clause items

impl DataSource

pub fn get_aliases(&self) -> Vec<AliasSpec>

get alias name for data sources

pub fn resolve_alias(&self, name: &AliasName) -> Option<(&DataSource, Nullable)>

resolve alias name to data source

pub fn get_aliases_for_column<TParseContext>( &self, column: &ColumnName, context: &TParseContext, with_clause: &WithClause, ) -> Vec<AliasSpec>

where TParseContext: ParseContext,

list alias name for column name

Trait Implementations

impl Clone for DataSource

fn clone(&self) -> DataSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataSource

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DataSource

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for DataSource

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DataSource

fn eq(&self, other: &DataSource) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for DataSource

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for DataSource

impl StructuralPartialEq for DataSource