Struct UnnamedPortal 

pub struct UnnamedPortal<'a> { /* private fields */ }

Handle to an unnamed portal for iterative row fetching.

Created by [Conn::exec_iter()]. Use exec() to retrieve rows in batches.

Implementations

impl<'a> UnnamedPortal<'a>

pub fn exec<H: ExtendedHandler>( &mut self, max_rows: u32, handler: &mut H, ) -> Result<bool>

Execute the portal to fetch up to max_rows rows using the provided handler.

Returns Ok(true) if more rows available (PortalSuspended received). Returns Ok(false) if all rows fetched (CommandComplete received).

pub fn exec_foreach<T: for<'b> FromRow<'b>, F: FnMut(T) -> Result<()>>( &mut self, max_rows: u32, f: F, ) -> Result<bool>

Execute the portal and call a closure for each row.

Returns Ok(true) if more rows available (PortalSuspended received). Returns Ok(false) if all rows fetched (CommandComplete received).