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CursorStatementHook

datafusion_postgres::hooks::cursor

Struct CursorStatementHook 

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pub struct CursorStatementHook;
Expand description

Hook for processing cursor-related statements (DECLARE/FETCH/CLOSE)

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impl Debug for CursorStatementHook

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

Formats the value using the given formatter. Read more
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impl QueryHook for CursorStatementHook

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fn handle_simple_query<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, statement: &'life1 Statement, session_context: &'life2 SessionContext, client: &'life3 mut dyn HookClient, ) -> Pin<Box<dyn Future<Output = Option<PgWireResult<Response>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

called in simple query handler to return response directly
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fn handle_extended_parse_query<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, statement: &'life1 Statement, _session_context: &'life2 SessionContext, _client: &'life3 (dyn ClientInfo + Send + Sync), ) -> Pin<Box<dyn Future<Output = Option<PgWireResult<LogicalPlan>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

called at extended query parse phase, for generating LogicalPlanfrom statement
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fn handle_extended_query<'life0, 'life1, 'life2, 'life3, 'life4, 'life5, 'async_trait>( &'life0 self, statement: &'life1 Statement, _logical_plan: &'life2 LogicalPlan, _params: &'life3 ParamValues, session_context: &'life4 SessionContext, client: &'life5 mut dyn HookClient, ) -> Pin<Box<dyn Future<Output = Option<PgWireResult<Response>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait, 'life4: 'async_trait, 'life5: 'async_trait,

called at extended query execute phase, for query execution

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impl<T> Any for T
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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
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