pub struct PostgreSqlDialect;Expand description
PostgreSQL 方言实现
Trait Implementations§
Source§impl Clone for PostgreSqlDialect
impl Clone for PostgreSqlDialect
Source§fn clone(&self) -> PostgreSqlDialect
fn clone(&self) -> PostgreSqlDialect
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreSource§impl Debug for PostgreSqlDialect
impl Debug for PostgreSqlDialect
Source§impl Dialect for PostgreSqlDialect
impl Dialect for PostgreSqlDialect
Source§fn build_upsert_on_conflict(
&self,
conflict_columns: &[&str],
update_columns: &[&str],
all_columns: &[String],
) -> Option<String>
fn build_upsert_on_conflict( &self, conflict_columns: &[&str], update_columns: &[&str], all_columns: &[String], ) -> Option<String>
P2-6:PostgreSQL 批量 upsert — ON CONFLICT (cols) DO UPDATE SET col=EXCLUDED.col, ...
PostgreSQL 要求显式指定冲突列(主键或唯一键)。
Source§fn escape_string(&self, s: &str) -> String
fn escape_string(&self, s: &str) -> String
转义字符串字面量,确保可安全嵌入 SQL
Source§fn supports_returning(&self) -> bool
fn supports_returning(&self) -> bool
该方言是否支持 RETURNING 子句
Source§fn bool_to_int(&self, expr: &str) -> String
fn bool_to_int(&self, expr: &str) -> String
将布尔表达式转换为整型存储
Source§fn supports_if_exists(&self) -> bool
fn supports_if_exists(&self) -> bool
该方言是否支持 IF EXISTS
Source§fn supports_if_not_exists(&self) -> bool
fn supports_if_not_exists(&self) -> bool
该方言是否支持 IF NOT EXISTS
Source§fn auto_increment_keyword(&self) -> &'static str
fn auto_increment_keyword(&self) -> &'static str
获取自增列关键字
Source§fn build_alter_table(&self, table: &str, changes: &[TableChange]) -> String
fn build_alter_table(&self, table: &str, changes: &[TableChange]) -> String
生成 ALTER TABLE 语句
Source§fn build_lock_clause(&self, lock_type: LockType) -> Option<String>
fn build_lock_clause(&self, lock_type: LockType) -> Option<String>
P2-3:生成行锁子句(TASK-025/026) Read more
Source§fn quote_checked(&self, identifier: &str) -> Result<String, DbError>
fn quote_checked(&self, identifier: &str) -> Result<String, DbError>
L-4 修复:带校验的引用标识符 Read more
Source§fn supports_lock_for_update(&self) -> bool
fn supports_lock_for_update(&self) -> bool
P2-3:该方言是否支持
FOR UPDATE 行锁(TASK-029) Read moreP2-3:该方言是否支持共享锁(TASK-029) Read more
Auto Trait Implementations§
impl Freeze for PostgreSqlDialect
impl RefUnwindSafe for PostgreSqlDialect
impl Send for PostgreSqlDialect
impl Sync for PostgreSqlDialect
impl Unpin for PostgreSqlDialect
impl UnsafeUnpin for PostgreSqlDialect
impl UnwindSafe for PostgreSqlDialect
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
Source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more