Nikita Sivukhin
5ce3d12f75
fix typo
2025-02-09 17:31:39 +04:00
Nikita Sivukhin
3557c8aada
adjust fuzz test
2025-02-09 17:31:39 +04:00
PThorpe92
75898027a0
Remove unnecessary reference counting from completion io callbacks
2025-02-08 08:20:19 -05:00
Nikita Sivukhin
75e2f01ec4
print btree for debugging
2025-02-08 13:03:38 +04:00
Nikita Sivukhin
55dd108878
setup simple insertion fuzz test
2025-02-08 12:38:32 +04:00
Krishna Vishal
7cb7eb4e65
Merge branch 'main' into delete-btree-row
2025-02-07 01:15:21 +05:30
krishvishal
349fd51559
Get db_header from Pager instead of BTreeCursor.
...
Fix page_cache in btree tests to use `parking_lot::RwLock`
2025-02-07 00:11:06 +05:30
krishvishal
f836ad7561
Remove write to PAGE_HEADER_OFFSET_CELL_CONTENT_AREA in insert_into_cell. This causes corruption when you reuse cell spaces from free_list.
2025-02-06 23:39:12 +05:30
krishvishal
7d67895306
1. Added frangmentation handling to find_free_cell
...
2. Added asserts and corruption error to `allocate_cell_space`
2025-02-06 23:39:09 +05:30
krishvishal
8263bd0482
Update page offsets in drop_cell and update cell pointer array after dropping a cell.
2025-02-06 23:36:27 +05:30
krishvishal
73dae3003d
Implement block coalescing in free_cell_range to reduce fragmentation and also added fragmentation tracking.
2025-02-06 23:36:26 +05:30
krishvishal
95da2244bb
Implemented delete(). Now we are able to delete a row. It handles both interior page and leaf page cell differently.
2025-02-06 23:34:27 +05:30
krishvishal
f62ec61694
Added a unit-test to test the case where clear_overflow_pages function is called on cell with no overflow pages
2025-02-06 23:34:26 +05:30
krishvishal
8c763780a8
Added free list and free_page functionality in Pager module. Now we can add dropped pages to free list, so pages can be reused in allocate_page.
2025-02-06 23:34:12 +05:30
krishvishal
83b214a4e3
Added clear_over_pages it deletes all the overflow pages related to a cell.
2025-02-06 23:27:07 +05:30
Pekka Enberg
f3902ef9b6
core: Rename OwnedRecord to Record
...
We only have one record type so let's call it `Record`.
2025-02-06 13:40:34 +02:00
Alex Miller
9ac52b66d9
Refactor cursor to support multiple state machines
2025-01-30 14:08:44 -08:00
Pekka Enberg
983875c443
core: Remove database header from BTreeCursor
...
It's already in the pager so use it from there to reduce the size of the
`BTreeCursor` struct.
2025-01-26 16:48:12 +02:00
Jorge López
218a2e6dda
syntactic changes: remove unneeded mut, lifetimes,references that get instantaneously dereferenced and casts
2025-01-18 18:43:47 +01:00
Jorge López
2cc8cb9ad8
syntactic changes: use assert_eq!() instead of assert!() for equality comparisons
2025-01-18 18:37:50 +01:00
Jorge López
f160206cdd
syntactic changes: replace unwrap() with ? in functions that return Result<...>
2025-01-18 18:33:43 +01:00
Jorge López
86a4714711
syntactic changes: remove unneeded paths when the type is already imported
2025-01-18 18:29:12 +01:00
Jussi Saurio
bf48c0ae72
Remove trait Cursor
2025-01-11 17:19:25 +02:00
Pere Diaz Bou
6802bb7e6a
distinguish balance and balance_non_root
...
`balance_non_root` should be as close as possible to `balance_non_root`
in SQLite. This commits extract `balance_non_root` from `balance` and
renames `balance_leaf` to `balance` as it enables future work on a
complete `balance_non_root` procedure.
2025-01-08 19:05:49 +01:00
Kould
a33984087f
chore: add comment on BTreeCursor::seek
2025-01-02 18:18:17 +08:00
Kould
e5d0ad044e
fix: index seek wrong
2025-01-02 11:11:44 +08:00
Lauri Virtanen
854005b977
Run cargo clippy --fix && cargo fmt
2024-12-29 19:22:28 +02:00
김선우
ad2d515ffd
Merge branch 'main' into feature/delete-planning
2024-12-27 23:21:35 +09:00
Pekka Enberg
5065074617
Merge 'core: disk serialization changes to align with sqlite' from Jussi Saurio
...
This PR's genesis is from investigating #532 , but I still can't reliably
reproduce it on either `main` or this branch so I don't know if this PR
_fixes_ anything, but I guess it aligns us more with sqlite anyway
---
Anyway: I looked at DBs created with limbo and with sqlite using
[ImHex](https://github.com/WerWolv/ImHex ) and the differences seem to
be:
1. SQLite uses varint according to [the
spec](https://www.sqlite.org/fileformat.html#record_format ), whereas
limbo always encodes integers as i64
2. Limbo adds 4 bytes of zeros for overflow page pointer (even in cases
where the cell doesnt overflow)
3. Limbo adds a space after `CREATE TABLE name` before the `(` even when
user doesn't specify it?
I implemented the following:
- Fix 1: Varint serialization of i8, i16, i24, i32, i48 and i64
according to payload, instead of always using i64
- Fix 2: Removed the 4 bytes reserved for overflow page pointer in non-
overflow cases
Reviewed-by: Pere Diaz Bou <pere-altea@homail.com >
Closes #550
2024-12-27 10:06:52 +02:00
jussisaurio
80933a32e9
remove space allocated for overflow pointer in non-overflow cases
2024-12-25 23:09:23 +02:00
jussisaurio
42ea9041e1
rename cell_get_raw_pointer_region() and refactor a bit
2024-12-24 19:27:01 +02:00
jussisaurio
25338b5cb4
refactor compute_free_space()
2024-12-24 19:00:22 +02:00
jussisaurio
c6b7ddf77a
Improve comments in BTreeCursor::compute_free_space()
2024-12-24 10:30:27 +02:00
jussisaurio
91cca0d5b7
use more descriptive names in BTreeCursor::insert_into_cell()
2024-12-24 10:28:53 +02:00
jussisaurio
9ea4c95ee1
even more comments
2024-12-23 22:07:20 +02:00
jussisaurio
6a287ae1a9
add comment about cell_content_area 0 value meaning u16::MAX
2024-12-23 21:33:57 +02:00
jussisaurio
40a0bef0dc
better fixme comments
2024-12-23 21:19:18 +02:00
jussisaurio
c417fe7880
add link to sqlite source about payload_overflows()
2024-12-23 21:14:20 +02:00
jussisaurio
b57a95752c
core/btree: improve documentation
2024-12-22 23:05:25 +02:00
김선우
9bacf80f2e
Change to println!
2024-12-22 14:41:12 +09:00
김선우
a42b185ece
Nit
2024-12-22 14:22:10 +09:00
김선우
9a8b94ef93
First successful implementation of delete planning
2024-12-22 13:16:16 +09:00
Ikko Eltociear Ashimine
043fba2632
core: update btree.rs
...
postion -> position
2024-12-15 03:31:46 +09:00
Pere Diaz Bou
97dd95abea
core: change Rc<RefCell<Page>> to Arc<Page>
...
This includes an inner struct in Page wrapped with Unsafe cell to access
it. This is done intentionally because concurrency control of pages is
handled by pages and not by the page itself.
2024-12-13 13:09:13 +01:00
krishvishal
7e2928a5f1
Feature: last_insert_rowid()
...
- Changed `Cursor` trait to be able to get access to `root_page`
- SQLite only updates last_insert_rowid for non-schema inserts. So we check if the `InsertAwait` is not for `root_page` before
updating rowid
2024-12-09 22:48:42 +05:30
Lauri Virtanen
afeb1cbe74
Clippy warning fixes
2024-11-24 20:24:47 +02:00
Lauri Virtanen
a7100d8e9b
Autofix clippy issues with cargo fix --clippy
2024-11-24 20:24:47 +02:00
jussisaurio
f945795ae6
consistent naming
2024-11-21 20:25:51 +02:00
jussisaurio
d8eb4be424
better, less cool names
2024-11-21 20:23:53 +02:00
jussisaurio
3002f2a552
io macro
2024-11-21 20:23:23 +02:00
