pub struct SapHanaDialect;Expand description
SAP HANA 方言实现(v3.7.0 SQL 生成层;v4.9.0 TASK-003 已集成真实驱动 hdbconnect_async v0.32.0)
SAP HANA 内存数据库方言,支持计算列 + CE 函数。 真实驱动桥接见 sz-orm-sqlx/src/saphana_adapter.rs(feature dialect-saphana-driver)。
Trait Implementations§
Source§impl Clone for SapHanaDialect
impl Clone for SapHanaDialect
Source§fn clone(&self) -> SapHanaDialect
fn clone(&self) -> SapHanaDialect
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 SapHanaDialect
impl Debug for SapHanaDialect
Source§impl Dialect for SapHanaDialect
Available on crate feature dialect-saphana only.
impl Dialect for SapHanaDialect
Available on crate feature
dialect-saphana only.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 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 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:生成批量 upsert 的冲突处理子句(ON CONFLICT / ON DUPLICATE KEY UPDATE) Read more
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 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 SapHanaDialect
impl RefUnwindSafe for SapHanaDialect
impl Send for SapHanaDialect
impl Sync for SapHanaDialect
impl Unpin for SapHanaDialect
impl UnsafeUnpin for SapHanaDialect
impl UnwindSafe for SapHanaDialect
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
impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
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