I was getting IO errors for too many files when running the simulator
locally. It seemed that the simulator did not delete files after a
successful run. After this change, I did not get anymore errors
Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>
Closes#2520
Implements `PRAGMA freelist_count` to return the current number of free
pages in the database.
Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>
Closes#2531
Implement very basic views using DBSP
This is just the bare minimum that I needed to convince myself that this
approach will work. The only views that we support are slices of the
main table: no aggregations, no joins, no projections.
* drop view is implemented.
* view population is implemented.
* deletes, inserts and updates are implemented.
much like indexes before, a flag must be passed to enable views.
Closes#2530
Add support for more of the SQLite C API.
Bind functions:
- sqlite3_bind_text (with destructor callback)
- sqlite3_bind_blob
Column functions:
- sqlite3_column_text
- sqlite3_column_blob
- sqlite3_column_bytes
Closes#2528
Currently, we have a borrow problem because parse_schema_rows() already
borrows `schema`, but then `apply_view_deltas` does the same:
```
thread 'main' panicked at core/vdbe/mod.rs:450:49:
already mutably borrowed: BorrowError
stack backtrace:
0: __rustc::rust_begin_unwind
at /rustc/6b00bc3880198600130e1cf62b8f8a93494488cc/library/std/src/panicking.rs:697:5
1: core::panicking::panic_fmt
at /rustc/6b00bc3880198600130e1cf62b8f8a93494488cc/library/core/src/panicking.rs:75:14
2: core::cell::panic_already_mutably_borrowed
at /rustc/6b00bc3880198600130e1cf62b8f8a93494488cc/library/core/src/cell.rs:799:5
3: core::cell::RefCell<T>::borrow
at /rustc/6b00bc3880198600130e1cf62b8f8a93494488cc/library/core/src/cell.rs:987:25
4: turso_core::vdbe::Program::apply_view_deltas
at ./core/vdbe/mod.rs:450:26
5: turso_core::vdbe::Program::commit_txn
at ./core/vdbe/mod.rs:468:9
6: turso_core::vdbe::execute::op_halt
at ./core/vdbe/execute.rs:1954:15
7: turso_core::vdbe::Program::step
at ./core/vdbe/mod.rs:430:19
8: turso_core::Statement::step
at ./core/lib.rs:1914:23
9: turso_core::util::parse_schema_rows
at ./core/util.rs:91:15
10: turso_core::Connection::parse_schema_rows::{{closure}}
at ./core/lib.rs:1518:17
11: turso_core::Connection::with_schema_mut
at ./core/lib.rs:1625:9
12: turso_core::Connection::parse_schema_rows
at ./core/lib.rs:1515:9
```
However, this is a read transaction and views are not even enabled,
let's just make `apply_view_deltas()` return early if there's no
processing needed, to skip the schema borrow altogether.
Currently, the simulator complains of the following error:
```
Error: failed with error: 'attempt to multiply with overflow'
```
However, we don't enable views in the simulator so -- despite being an
issue -- we should never see this. Let's fix `op_delete()` some more not
to not even call rowid() unless view processing is enabled.
- Add explicit 'turso' command example in shell block
- Separate shell command from interactive session output
- Add context explaining what the command does
- Improve copy-paste experience for new users
- Follow standard CLI documentation patterns
Fixes unclear initialization flow where users didn't know
what command to run after installation.
When building views (soon), it will be important to know which table is
being deleted. Getting from the cursor id is very cumbersome.
What we are doing here is symmetrical to op_insert, and sqlite also
passes table information in one of the registers (p4)
Closes#2529
Implement very basic views using DBSP
This is just the bare minimum that I needed to convince myself that this
approach will work. The only views that we support are slices of the
main table: no aggregations, no joins, no projections.
* drop view is implemented.
* view population is implemented.
* deletes, inserts and updates are implemented.
much like indexes before, a flag must be passed to enable views.
Closes#2530
This is just the bare minimum that I needed to convince myself that this
approach will work. The only views that we support are slices of the
main table: no aggregations, no joins, no projections.
drop view is implemented.
view population is implemented.
deletes, inserts and updates are implemented.
much like indexes before, a flag must be passed to enable views.
When building views (soon), it will be important to know which table
is being deleted. Getting from the cursor id is very cumbersome.
What we are doing here is symmetrical to op_insert, and sqlite also
passes table information in one of the registers (p4)
When building views (soon), it will be important to know which table
is being deleted. Getting from the cursor id is very cumbersome.
What we are doing here is symmetrical to op_insert, and sqlite also
passes table information in one of the registers (p4)
