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Forgot to seek before garbage collection

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This commit is contained in:
Yuriy Dupyn 2024-02-05 02:26:54 +01:00
parent f3fc67cbbc
commit c0a3ee08b8
2 changed files with 131 additions and 63 deletions
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124
storage_engine/src/main.rs
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@ -82,6 +82,20 @@ async fn append_bunch_of_entries(store: &mut Store<Data>) -> Result<()> {
Ok(())
}
async fn test_garbage_collection(store: &mut Store<Data>) -> Result<()> {
let mut cursor = store.write_cursor().await.map_err(|e| e.to_io_or_panic())?;
// cursor.delete_entries_where_eq()
// 1. mark a bunch of entries as deleted
let column = 0;
let value = 1;
// cursor.delete_entries_where_eq(column, &value, true).await.map_err(|e| e.to_io_or_panic())?;
// let value = 50;
// cursor.delete_entries_where_eq(column, &value).await.map_err(|e| e.to_io_or_panic())?;
// cursor.initiate_garbage_collection().await.map_err(|e| e.to_io_or_panic())?;
Ok(())
}
#[tokio::main]
async fn main() -> Result<()> {
println!("STOOOOOOOOOOOORAAAAAAAAAAAGE");
@ -117,65 +131,73 @@ async fn main() -> Result<()> {
cursor.read_entries().await.map_err(|e| e.to_io_or_panic())?;
}
{
let mut cursor = store.read_cursor().await.map_err(|e| e.to_io_or_panic())?;
let x = cursor.next().await.map_err(|e| e.to_io_or_panic())?;
println!("{:?}", x);
let x = cursor.next().await.map_err(|e| e.to_io_or_panic())?;
println!("{:?}", x);
let x = cursor.next().await.map_err(|e| e.to_io_or_panic())?;
println!("{:?}", x);
let x = cursor.next().await.map_err(|e| e.to_io_or_panic())?;
println!("{:?}", x);
let x = cursor.next().await.map_err(|e| e.to_io_or_panic())?;
println!("{:?}", x);
}
test_garbage_collection(&mut store).await?;
{
let mut cursor = store.read_cursor().await.map_err(|e| e.to_io_or_panic())?;
let column = 2;
let x = cursor.next_at_column(column).await.map_err(|e| e.to_io_or_panic())?;
println!("{:?}", x);
let x = cursor.next_at_column(column).await.map_err(|e| e.to_io_or_panic())?;
println!("{:?}", x);
let x = cursor.next_at_column(column).await.map_err(|e| e.to_io_or_panic())?;
println!("{:?}", x);
let x = cursor.next_at_column(column).await.map_err(|e| e.to_io_or_panic())?;
println!("{:?}", x);
let x = cursor.next_at_column(column).await.map_err(|e| e.to_io_or_panic())?;
println!("{:?}", x);
cursor.read_entries().await.map_err(|e| e.to_io_or_panic())?;
}
{
let mut cursor = store.read_cursor().await.map_err(|e| e.to_io_or_panic())?;
let column = 0;
let value = 1;
let entries = cursor.select_entries_where_eq(column, &value).await.map_err(|e| e.to_io_or_panic())?;
println!("ARE INDEXES WORKING???");
println!("{:?}", entries);
}
{
let mut cursor = store.read_cursor().await.map_err(|e| e.to_io_or_panic())?;
let column = 1;
let value = 2;
let entries = cursor.select_entries_where_eq(column, &value).await.map_err(|e| e.to_io_or_panic())?;
println!("ARE INDEXES WORKING???");
println!("{:?}", entries);
}
// {
// let mut cursor = store.read_cursor().await.map_err(|e| e.to_io_or_panic())?;
// let x = cursor.next().await.map_err(|e| e.to_io_or_panic())?;
// println!("{:?}", x);
// let x = cursor.next().await.map_err(|e| e.to_io_or_panic())?;
// println!("{:?}", x);
// let x = cursor.next().await.map_err(|e| e.to_io_or_panic())?;
// println!("{:?}", x);
// let x = cursor.next().await.map_err(|e| e.to_io_or_panic())?;
// println!("{:?}", x);
// let x = cursor.next().await.map_err(|e| e.to_io_or_panic())?;
// println!("{:?}", x);
// }
{
let column = 1;
// println!("BUILDING AN INDEX");
// store.attach_index(column).await.map_err(|e| e.to_io_or_panic())?;
// println!("INDEX BUILT!");
// {
// let mut cursor = store.read_cursor().await.map_err(|e| e.to_io_or_panic())?;
// let column = 2;
// let x = cursor.next_at_column(column).await.map_err(|e| e.to_io_or_panic())?;
// println!("{:?}", x);
// let x = cursor.next_at_column(column).await.map_err(|e| e.to_io_or_panic())?;
// println!("{:?}", x);
// let x = cursor.next_at_column(column).await.map_err(|e| e.to_io_or_panic())?;
// println!("{:?}", x);
// let x = cursor.next_at_column(column).await.map_err(|e| e.to_io_or_panic())?;
// println!("{:?}", x);
// let x = cursor.next_at_column(column).await.map_err(|e| e.to_io_or_panic())?;
// println!("{:?}", x);
// }
let mut cursor = store.read_cursor().await.map_err(|e| e.to_io_or_panic())?;
let value = 2;
let entries = cursor.select_entries_where_eq(column, &value).await.map_err(|e| e.to_io_or_panic())?;
println!("ARE INDEXES WORKING???");
println!("{:?}", entries);
}
// {
// let mut cursor = store.read_cursor().await.map_err(|e| e.to_io_or_panic())?;
// let column = 0;
// let value = 1;
// let entries = cursor.select_entries_where_eq(column, &value).await.map_err(|e| e.to_io_or_panic())?;
// println!("ARE INDEXES WORKING???");
// println!("{:?}", entries);
// }
// {
// let mut cursor = store.read_cursor().await.map_err(|e| e.to_io_or_panic())?;
// let column = 1;
// let value = 2;
// let entries = cursor.select_entries_where_eq(column, &value).await.map_err(|e| e.to_io_or_panic())?;
// println!("ARE INDEXES WORKING???");
// println!("{:?}", entries);
// }
// {
// let column = 1;
// // println!("BUILDING AN INDEX");
// // store.attach_index(column).await.map_err(|e| e.to_io_or_panic())?;
// // println!("INDEX BUILT!");
// let mut cursor = store.read_cursor().await.map_err(|e| e.to_io_or_panic())?;
// let value = 2;
// let entries = cursor.select_entries_where_eq(column, &value).await.map_err(|e| e.to_io_or_panic())?;
// println!("ARE INDEXES WORKING???");
// println!("{:?}", entries);
// }
// {