pub struct PostgresServerHandlerInner {
query_handler: ServerSqlQueryHandlerRef,
auth_source: Option<Arc<PgUserProviderSource>>,
copy_in_handler: CopyInHandlerRef,
influxdb_handler: Option<InfluxdbLineProtocolHandlerRef>,
force_tls: bool,
auth_driver: AuthDriver<Arc<GreptimeDBStartupParameters>, UserInfoRef>,
is_scram_auth: AtomicBool,
batching_enabled: bool,
session: Arc<Session>,
query_parser: Arc<DefaultQueryParser>,
copy_in_state: Mutex<Option<CopyInState>>,
}Fields§
§query_handler: ServerSqlQueryHandlerRef§auth_source: Option<Arc<PgUserProviderSource>>§copy_in_handler: CopyInHandlerRef§influxdb_handler: Option<InfluxdbLineProtocolHandlerRef>Executes influxdb line-protocol batches flushed by a table-less COPY FROM STDIN — the same handler the HTTP write endpoints use. Absent on servers not wired for it; such connections reject the influxdb format when a copy starts.
force_tls: bool§auth_driver: AuthDriver<Arc<GreptimeDBStartupParameters>, UserInfoRef>§is_scram_auth: AtomicBoolSCRAM selected; failures get the uniform metric label.
batching_enabled: bool§session: Arc<Session>§query_parser: Arc<DefaultQueryParser>§copy_in_state: Mutex<Option<CopyInState>>State of an in-progress COPY ... FROM STDIN; set when the copy
starts and taken when it finishes, fails or the connection drops.
Implementations§
Source§impl PostgresServerHandlerInner
impl PostgresServerHandlerInner
async fn select_mechanism<C>(&self, client: &C) -> MechanismSelectionwhere
C: ClientInfo + Sync,
Source§impl PostgresServerHandlerInner
impl PostgresServerHandlerInner
Sourcepub(crate) async fn begin_copy_in(
&self,
stmt: CopyFromStdin,
) -> PgWireResult<Response>
pub(crate) async fn begin_copy_in( &self, stmt: CopyFromStdin, ) -> PgWireResult<Response>
Prepares a COPY FROM STDIN: resolves the target table, validates columns and stashes the per-connection copy state.
Sourceasync fn flush_copy_in(&self, state: &mut CopyInState) -> PgWireResult<u64>
async fn flush_copy_in(&self, state: &mut CopyInState) -> PgWireResult<u64>
Flushes the buffered payload of an in-progress copy. Returns the number of rows written by the flushed batch.
Source§impl PostgresServerHandlerInner
impl PostgresServerHandlerInner
Sourcepub(super) fn new_query_context(&self) -> QueryContextRef
pub(super) fn new_query_context(&self) -> QueryContextRef
Creates a query context carrying this connection’s batching selection, so write paths can route through the pending-rows batcher when it is enabled.
Trait Implementations§
Source§impl CopyHandler for PostgresServerHandlerInner
impl CopyHandler for PostgresServerHandlerInner
Source§fn on_copy_data<'life0, 'life1, 'async_trait, C>(
&'life0 self,
_client: &'life1 mut C,
copy_data: CopyData,
) -> Pin<Box<dyn Future<Output = PgWireResult<()>> + Send + 'async_trait>>
fn on_copy_data<'life0, 'life1, 'async_trait, C>( &'life0 self, _client: &'life1 mut C, copy_data: CopyData, ) -> Pin<Box<dyn Future<Output = PgWireResult<()>> + Send + 'async_trait>>
Called when copy data is received from the client.
Source§fn on_copy_done<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
_done: CopyDone,
) -> Pin<Box<dyn Future<Output = PgWireResult<()>> + Send + 'async_trait>>
fn on_copy_done<'life0, 'life1, 'async_trait, C>( &'life0 self, client: &'life1 mut C, _done: CopyDone, ) -> Pin<Box<dyn Future<Output = PgWireResult<()>> + Send + 'async_trait>>
Called when the client signals the copy-in operation is complete.
Source§fn on_copy_fail<'life0, 'life1, 'async_trait, C>(
&'life0 self,
_client: &'life1 mut C,
fail: CopyFail,
) -> Pin<Box<dyn Future<Output = PgWireError> + Send + 'async_trait>>
fn on_copy_fail<'life0, 'life1, 'async_trait, C>( &'life0 self, _client: &'life1 mut C, fail: CopyFail, ) -> Pin<Box<dyn Future<Output = PgWireError> + Send + 'async_trait>>
Called when the client aborts the copy-in operation.
Source§impl ErrorHandler for PostgresServerHandlerInner
impl ErrorHandler for PostgresServerHandlerInner
Source§impl ExtendedQueryHandler for PostgresServerHandlerInner
impl ExtendedQueryHandler for PostgresServerHandlerInner
type Statement = PgSqlPlan
type QueryParser = DefaultQueryParser
Source§fn query_parser(&self) -> Arc<Self::QueryParser> ⓘ
fn query_parser(&self) -> Arc<Self::QueryParser> ⓘ
Get a reference to associated
QueryParser implementationSource§fn do_query<'life0, 'life1, 'life2, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
portal: &'life2 Portal<Self::Statement>,
_max_rows: usize,
) -> Pin<Box<dyn Future<Output = PgWireResult<Response>> + Send + 'async_trait>>
fn do_query<'life0, 'life1, 'life2, 'async_trait, C>( &'life0 self, client: &'life1 mut C, portal: &'life2 Portal<Self::Statement>, _max_rows: usize, ) -> Pin<Box<dyn Future<Output = PgWireResult<Response>> + Send + 'async_trait>>
This is the main implementation for query execution. Context has
been provided: Read more
Source§fn do_describe_statement<'life0, 'life1, 'life2, 'async_trait, C>(
&'life0 self,
_client: &'life1 mut C,
stmt: &'life2 StoredStatement<Self::Statement>,
) -> Pin<Box<dyn Future<Output = PgWireResult<DescribeStatementResponse>> + Send + 'async_trait>>
fn do_describe_statement<'life0, 'life1, 'life2, 'async_trait, C>( &'life0 self, _client: &'life1 mut C, stmt: &'life2 StoredStatement<Self::Statement>, ) -> Pin<Box<dyn Future<Output = PgWireResult<DescribeStatementResponse>> + Send + 'async_trait>>
Return resultset metadata without actually executing statement
Source§fn do_describe_portal<'life0, 'life1, 'life2, 'async_trait, C>(
&'life0 self,
_client: &'life1 mut C,
portal: &'life2 Portal<Self::Statement>,
) -> Pin<Box<dyn Future<Output = PgWireResult<DescribePortalResponse>> + Send + 'async_trait>>
fn do_describe_portal<'life0, 'life1, 'life2, 'async_trait, C>( &'life0 self, _client: &'life1 mut C, portal: &'life2 Portal<Self::Statement>, ) -> Pin<Box<dyn Future<Output = PgWireResult<DescribePortalResponse>> + Send + 'async_trait>>
Return resultset metadata without actually executing portal
§fn on_parse<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Parse,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
fn on_parse<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Parse,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
Called when client sends
parse command. Read more§fn on_bind<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Bind,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
fn on_bind<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Bind,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
Called when client sends
bind command. Read more§fn on_execute<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Execute,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
fn on_execute<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Execute,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
Called when client sends
execute command. Read more§fn _on_execute<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Execute,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
fn _on_execute<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Execute,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
The default implementation of
on_execute. Read more§fn on_describe<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Describe,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
fn on_describe<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Describe,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
Called when client sends
describe command. Read more§fn _on_describe<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Describe,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
fn _on_describe<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Describe,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
The default implementation of
on_describe Read more§fn on_flush<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
_message: Flush,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>
fn on_flush<'life0, 'life1, 'async_trait, C>( &'life0 self, client: &'life1 mut C, _message: Flush, ) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>
Called when client sends
flush command. Read more§fn on_sync<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
_message: Sync,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
fn on_sync<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
_message: Sync,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
Called when client sends
sync command. Read more§fn on_close<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Close,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
fn on_close<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: Close,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore<Statement = Self::Statement>,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
Called when client sends
close command. Read moreSource§impl SimpleQueryHandler for PostgresServerHandlerInner
impl SimpleQueryHandler for PostgresServerHandlerInner
Source§fn do_query<'life0, 'life1, 'life2, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
query: &'life2 str,
) -> Pin<Box<dyn Future<Output = PgWireResult<Vec<Response>>> + Send + 'async_trait>>
fn do_query<'life0, 'life1, 'life2, 'async_trait, C>( &'life0 self, client: &'life1 mut C, query: &'life2 str, ) -> Pin<Box<dyn Future<Output = PgWireResult<Vec<Response>>> + Send + 'async_trait>>
Provide your query implementation using the incoming query string. Read more
§fn on_query<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
query: Query,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
fn on_query<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
query: Query,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
Executed on
Query request arrived. This is how postgres respond to
simple query. The default implementation calls do_query with the
incoming query string. Read more§fn _on_query<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
query: Query,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
fn _on_query<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
query: Query,
) -> Pin<Box<dyn Future<Output = Result<(), PgWireError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
C: ClientInfo + ClientPortalStore + Sink<PgWireBackendMessage> + Unpin + Send + Sync + 'async_trait,
<C as ClientPortalStore>::PortalStore: PortalStore,
<C as Sink<PgWireBackendMessage>>::Error: Debug,
PgWireError: From<<C as Sink<PgWireBackendMessage>>::Error>,
Self: 'async_trait,
This is the default implementation of
on_query. If you want to
override on_query with your own pre/post processing logic, you can
call this function.Source§impl StartupHandler for PostgresServerHandlerInner
impl StartupHandler for PostgresServerHandlerInner
Source§fn on_startup<'life0, 'life1, 'async_trait, C>(
&'life0 self,
client: &'life1 mut C,
message: PgWireFrontendMessage,
) -> Pin<Box<dyn Future<Output = PgWireResult<()>> + Send + 'async_trait>>
fn on_startup<'life0, 'life1, 'async_trait, C>( &'life0 self, client: &'life1 mut C, message: PgWireFrontendMessage, ) -> Pin<Box<dyn Future<Output = PgWireResult<()>> + Send + 'async_trait>>
A generic frontend message callback during startup phase.
Auto Trait Implementations§
impl !Freeze for PostgresServerHandlerInner
impl !RefUnwindSafe for PostgresServerHandlerInner
impl !UnwindSafe for PostgresServerHandlerInner
impl Send for PostgresServerHandlerInner
impl Sync for PostgresServerHandlerInner
impl Unpin for PostgresServerHandlerInner
impl UnsafeUnpin for PostgresServerHandlerInner
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§impl<T> AnySync for T
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T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
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§impl<T> Conv for T
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§impl<Choices> CoproductSubsetter<CNil, HNil> for Choices
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§impl<T> Downcast for Twhere
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T: Any,
§fn into_any(self: Box<T>) -> Box<dyn Any>
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