Struct SelectStatement 

pub struct SelectStatement {
    pub select_clause: SelectClause,
    pub from_clause: Option<FromClause>,
    pub where_clause: Option<WhereExpression>,
    pub group_by: Option<GroupByClause>,
    pub having_clause: Option<WhereExpression>,
    pub order_by: Option<OrderByClause>,
    pub limit: Option<LimitClause>,
    pub offset: Option<u64>,
    pub allow_filtering: bool,
}

Complete SELECT statement AST

Fields

select_clause: SelectClause

SELECT clause - what to return

from_clause: Option<FromClause>

FROM clause - which table(s) to query (optional for constant expressions)

where_clause: Option<WhereExpression>

WHERE clause - filtering conditions

group_by: Option<GroupByClause>

GROUP BY clause - grouping columns

having_clause: Option<WhereExpression>

HAVING clause - filtering after grouping

order_by: Option<OrderByClause>

ORDER BY clause - sorting specification

limit: Option<LimitClause>

LIMIT clause - result size limitation

offset: Option<u64>

OFFSET clause - result pagination

allow_filtering: bool

Allow filtering flag (for non-indexed queries)

Implementations

impl SelectStatement

pub fn select_all_from(table: TableId) -> Self

Create a simple SELECT * FROM table statement

pub fn requires_aggregation(&self) -> bool

Check if this query requires aggregation

pub fn has_aggregate_functions(&self) -> bool

Check if this query has aggregate functions

pub fn get_referenced_columns(&self) -> Vec<ColumnRef>

Get all referenced columns (for query planning).

SELECT * contributes nothing here; the projection is resolved later against the schema during planning.

Trait Implementations

impl Clone for SelectStatement

fn clone(&self) -> SelectStatement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SelectStatement

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SelectStatement

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for SelectStatement

fn eq(&self, other: &SelectStatement) -> 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 SelectStatement

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SelectStatement