Makes it easier to test the feature:
```
$ cargo run -- --experimental-indexes
Limbo v0.0.22
Enter ".help" for usage hints.
Connected to a transient in-memory database.
Use ".open FILENAME" to reopen on a persistent database
limbo> CREATE TABLE t(x);
limbo> CREATE INDEX t_idx ON t(x);
limbo> DROP INDEX t_idx;
```
While debugging another issue for #1469, I noticed that the symbols
aren't being properly referenced for `getError` for either limboRows or
limboStmt types.
Closes#1470
This PR implements basic transaction support in the Limbo Go adapter by
adding the required methods to fulfill the `driver.Tx` interface.
## Changes
- Add `Begin()` method to `limboConn` to start a transaction
- Add `BeginTx()` method with context support and proper handling of
transaction options
- Implement `Commit()` method to commit transaction changes
- Implement `Rollback()` method with appropriate error handling
- Add transaction tests
## Implementation Details
- Uses the standard SQLite transaction commands (BEGIN, COMMIT,
ROLLBACK)
- Follows the same pattern as other SQL operations in the adapter
(prepare-execute-close)
- Maintains consistent locking and error handling patterns
## Limitations
- Currently, ROLLBACK operations will return an error as they're not yet
fully supported in the underlying Limbo implementation
- Only the default isolation level is supported; all other isolation
levels return `driver.ErrSkip`
- Read-only transactions are not supported and return `driver.ErrSkip`
## Testing
- Added basic transaction tests that verify BEGIN and COMMIT operations
- Adjusted tests to work with the current Limbo implementation
capabilities
These transaction methods enable the Go adapter to be used in
applications that require transaction support while providing clear
error messages when unsupported features are requested. I'll add to it
when Limbo supports ROLLBACK and/or additional isolation levels.
Closes#1435
PR #1442 added support for using time.Time as query parameters.
Scanning time.Time values from query results still fails:
`sql: Scan error on column index 4, name "mod_time": unsupported Scan,
storing driver.Value type string into type *time.Time`
This change modifies the `toGoValue` function to detect RFC3339
formatted datetime strings and convert them back to time.Time objects
when reading from the database. This provides complete roundtrip support
for time.Time values.
Also added boolean support by converting Go bool values to integers (0
for false, 1 for true) when binding parameters, following SQLite's
convention for representing boolean values.
Reviewed-by: Preston Thorpe (@PThorpe92)
Closes#1465
This change enables the Go adapter to embed platform-specific libraries
and extract them at runtime, eliminating the need for users to set
LD_LIBRARY_PATH or other environment variables.
- Add embedded.go with core library extraction functionality
- Update limbo_unix.go and limbo_windows.go to use embedded libraries
- Add build_lib.sh script to generate platform-specific libraries
- Update README.md with documentation for the new feature
- Add .gitignore to prevent committing binary files
- Add test coverage for Vector operations (vector(), vector_extract(),
vector_distance_cos()) and sqlite core features
The implementation maintains backward compatibility with the traditional
library loading mechanism as a fallback. This approach is inspired by
projects like go-embed-python that use a similar technique for native
library distribution.
https://github.com/tursodatabase/limbo/issues/506
Reviewed-by: Preston Thorpe (@PThorpe92)
Closes#1434
systems report x86_64. This change maps the architecture names to ensure the built libraries are placed in the correct directories for Go's embedded loading system (e.g., libs/linux_amd64)
OwnedValue has become a powerhouse of madness, mainly because I decided
to do it like that when I first introduced AggContext. I decided it was
enough and I introduced a `Register` struct that contains `OwnedValue`,
`Record` and `Aggregation`, this way we don't use `OwnedValue` for
everything make everyone's life harder.
This is the next step towards making ImmutableRecords the default
because I want to remove unnecessary allocations. Right now we clone
OwnedValues when we generate a record more than needed.
We currently have two value types, `Value` and `OwnedValue`. The
original thinking was that `Value` is external type and `OwnedValue` is
internal type. However, this just results in unnecessary transformation
between the types as data crosses the Limbo library boundary.
Let's just follow SQLite here and consolidate on a single value type
(where `sqlite3_value` is just an alias for the internal `Mem` type).
The way this will eventually work is that we can have bunch of
pre-allocated `OwnedValue` objects in `ProgramState` and basically
return a reference to them all the way to the application itself, which
extracts the actual value.
