pub struct Select {
pub params: Option<Params>,
pub from: Option<Meta<TableName>>,
pub where_clause: Option<Where>,
pub first: Option<Meta<bool>>,
pub distinct: Option<Meta<bool>>,
pub distinct_on: Option<DistinctOn>,
pub order_by: Option<OrderBy>,
pub limit: Option<Meta<String>>,
pub offset: Option<Meta<String>>,
pub fields: Option<SelectFields>,
pub sql: Option<Meta<String>>,
pub returns: Option<Returns>,
}Expand description
A SELECT query definition.
Can be either a structured query (with from and select) or a raw SQL query
(with sql and returns).
Fields§
§params: Option<Params>Query parameters.
from: Option<Meta<TableName>>Source table to query from (for structured queries).
where_clause: Option<Where>Filter conditions.
first: Option<Meta<bool>>Return only the first result.
distinct: Option<Meta<bool>>Use DISTINCT to return only unique rows.
distinct_on: Option<DistinctOn>DISTINCT ON clause (PostgreSQL-specific) - return first row of each group.
order_by: Option<OrderBy>Order by clause.
limit: Option<Meta<String>>Limit clause (number or param reference like $limit).
offset: Option<Meta<String>>Offset clause (number or param reference like $offset).
fields: Option<SelectFields>Fields to select (for structured queries).
sql: Option<Meta<String>>Raw SQL query string (for raw SQL queries).
returns: Option<Returns>Return type specification (for raw SQL queries).
Implementations§
Source§impl Select
impl Select
Sourcepub fn has_relations(&self) -> bool
pub fn has_relations(&self) -> bool
Check if this query has any relations in its select clause.
Sourcepub fn has_vec_relations(&self) -> bool
pub fn has_vec_relations(&self) -> bool
Check if this query has any Vec (has-many) relations.
Sourcepub fn has_nested_vec_relations(&self) -> bool
pub fn has_nested_vec_relations(&self) -> bool
Check if this query has nested Vec relations (Vec containing Vec).
Trait Implementations§
Auto Trait Implementations§
impl Freeze for Select
impl RefUnwindSafe for Select
impl Send for Select
impl Sync for Select
impl Unpin for Select
impl UnsafeUnpin for Select
impl UnwindSafe for Select
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