This PR adds 2 autonomous test suites for use with Antithesis: `bank-
test` and `stress-composer`. It also modifies the existing
`limbo_stress` test to run as a singleton and modifies other Antithesis-
related configuration files.
**bank-test**
- `first_setup.py`
- initializes a DB table with columns accounts and balance
- generates random balances for each account
- stores initial state of the table
- `parallel_driver_generate_transaction.py`
- selects 2 accounts from the table as sender and receiver
- generates a random value which is subtracted from sender and added
to receiver
- `anytime/eventually/finally_validate.py`
- checks that sum of initial balances == sum of current balances
**stress-composer**
- Breaks `limbo_stress` into component parts
- `first_setup.py`
- creates up to 10 tables with up to 10 columns
- stores table details in a separate db
- `parallel_driver_insert.py`
- randomly generates and executes up to 100 insert statements into a
single table using random values derived from the table details
- `parallel_driver_update.py`
- randomly generates and executes up to 100 updates into a single
table using random values derived from the table details
- `parallel_driver_delete.py`
- randomly generates and executes up to 100 deletes from a single
table using random values derived from the table details
Closes#1401
basically serialtype got slower in #1398, maybe because of the wasted
space of `enum SerialType` being 16 bytes, so i've now refactored
`SerialType` to be a transparent newtype wrapper over `u64` and
introduced a separate `SerialTypeKind` enum
at least on my machine the perf regression was nullified, if not even a
bit better
Reviewed-by: Pere Diaz Bou <pere-altea@homail.com>
Closes#1399
1) Fix a bug where cli pretty mode would not print pragma results;
2) Add ability to read page_size using PRAGMA page_size;
Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>
Closes#1394
This avoids redundant `IsNull` instructions during index seeks if the
seek key columns are primary keys of other tables, which they often are.
Reviewed-by: Preston Thorpe (@PThorpe92)
Closes#1388
### Summary
- Sqlite compatible string to float conversion
- Accompanied with the new `cast_real` fuzz target
- `NonNan` wrapper type over `f64`
- Now we can guarantee that operations that can make result in a NaN
need to be handled
- `Numeric` and `NullableInteger` types that encapsulate all numeric
and bitwise operations
- This is now guaranteed to be 100% compatible with sqlite with the
`expression` fuzz target (with the exception of the commented out
operation that will be implemented in a later PR)
One thing that might be reworked here is the heavy use of traits and
operator overloading, but looks reasonable to me.
Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>
Closes#1386
This PR adds a python script that uses the `TestLimboShell` setup to run
some semi naive benchmarks/comparisons against `io_uring` and `syscall`
IO back-ends.
### Usage:
```sh
make bench-vfs SQL="insert into products (name, price) values ('testing', randomblob(1024*4));" N=50
```
The script will execute the given `SQL` `N` times with each back-end,
get the average/mean and display them.
😬
Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>
Closes#1377
I was reading through the `translate_expr` function and `COMPAT.md` to
see what was not implemented yet. I saw that `Expr::Between` was marked
as a `todo!` so I set trying to implement it only to find that it was
being rewritten in the optimizer haha. This PR just adjusts the docs and
add an `unreachable` in the appropriate locations.
Closes#1378
This PR adds the statement.columns() function, inspired from Rusqlite: h
ttps://docs.rs/rusqlite/latest/rusqlite/struct.Statement.html#method.col
umns
Note that the rusqlite documentation says
> If associated DB schema can be altered concurrently, you should make
sure that current statement has already been stepped once before calling
this method.
Do we have this requirement as well?
The first commit is just the rust binding. The second commit implements
the column name for the rowid column.
Closes#1376
