Fixes the following problems with COLLATE:
- Fix: incorrectly used e.g. `x COLLATE NOCASE = 'fOo'` as index
constraint on an index whose column was not case-insensitively collated
- Fix: various ephemeral indexes (in GROUP BY, ORDER BY, DISTINCT) and
subqueries did not retain proper collation information of columns
- Fix: collation of a given expression was not determined properly
according to SQLite's rules
Adds TCL tests and fuzz test
Closes#3476Closes#1524Closes#3305
Reviewed-by: Preston Thorpe <preston@turso.tech>
Closes#3538
`IOResult` implies we have a state machine that needs to be polled to
`Completion`, which is not the case here. We are just emitting the IO
operation in this case. This led us to never reaching the
`IOResult::Done` branch that actually fsynced the logical log in
`Checkpoint`.
I also sprinkled some
```rust
if c.is_completed() {
Ok(TransitionResult::Continue)
} else {
Ok(TransitionResult::Io(IOCompletions::Single(c)))
}
```
just to be more efficient with sync IO, but it is not strictly necessary
here.
Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>
Closes#3549
We don't need to clear the cursors explicitly because OpenRead and
OpenWrite will anyway replace them.
Reviewed-by: Preston Thorpe <preston@turso.tech>
Closes#3526
This is a follow up from PR - #3457 which requires users to opt in to
enable encryption. This patch
- Makes appropriate changes to Whopper and Encryption throughput tests
- Updated Rust bindings to pass the encryption options properly
- Added a test for rust bindings
To use encryption in Rust bindings, one needs to do:
```rust
let opts = EncryptionOpts {
hexkey: "b1bbfda...02a5669fc76327".to_string(),
cipher: "aegis256".to_string(),
};
let builder = Builder::new_local(&db_file).experimental_encryption(true).with_encryption(opts.clone());
let db = builder.build().await.unwrap();
```
We will remove the `experimental_encryption` once the feature is stable.
Closes#3532
This PR makes sync client completely autonomous as now it can defer
initial sync.
This can open possibility to asynchronously create DB in the Turso Cloud
while giving user ability to interact with local DB straight away.
Closes#3531
MVCC bootstrap connection got stuck into an infinite statement reparsing
loop because the bootstrap procedure happened before the on-disk schema
was deserialized.
closes#3518Closes#3522
The VDBE step() function was taking Arc<MvStore> by value, causing it to
be cloned on every single step of query execution. This resulted in
thousands of atomic reference count increments/decrements per query,
showing up as a major hotspot in profiling.
Changed step() and related functions to take Option<&Arc<MvStore>>
instead, passing a reference rather than cloning the Arc. This
eliminates the unnecessary atomic operations while maintaining the same
semantics.
Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>
Closes#3520
