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Author SHA1 Message Date
Daniel Boll
5fc9ccdc8c Update checkpoint result initialization and WAL frame handling 
- Use `CheckpointResult::default()` instead of `CheckpointResult::new()`
- Correct WAL frame header salt and checksum handling
- Ensure frame ID is 1-based and adjust frame offset calculation
- Add `Default` implementation for `CheckpointResult`
- Use random values for WAL header salts
 2025-03-25 21:38:12 -03:00
Pere Diaz Bou
8642d416c7 Introduce immutable record. 
Currently we have a Record, which is a dumb vector of cloned values.
This is incredibly bad for performance as we do not want to clone
objects unless needed. Therefore, let's start by introducing this type
so that any record that has already been serialized will be returned
from btree in the format of a simple payload with reference to payload.
 2025-03-25 17:35:41 +01:00
Pekka Enberg
79620946c1 Merge 'JSON cache' from Ihor Andrianov 
SQLite uses a similar approach for operations where up to 4 JSON objects
are accessed multiple times in a single query.
`SELECT json_extact(a, 'some_path'), json_remove(a, 'some_path')
json_set(a, 'some_path', 'some_value') from t;`

Closes #1163
 2025-03-25 18:11:33 +02:00
Pekka Enberg
920b2efe31 Merge 'Bump rusqlite to 0.34' from Pere Diaz Bou 
Closes #1175
 2025-03-25 18:09:18 +02:00
Ihor Andrianov
7c1d827d33 clippy 2025-03-25 17:13:31 +02:00
Ihor Andrianov
8bfacf3955 add lazy and bucket cursor 2025-03-25 16:55:29 +02:00
Levy A.
dd10fb13a7 fix: unary + is a noop 2025-03-25 11:43:19 -03:00
Pere Diaz Bou
004dc374b2 bump rusqlite to 0.34 2025-03-25 14:17:31 +01:00
Pekka Enberg
28919038f1 Merge 'core: Rename FileStorage to DatabaseFile' from Pekka Enberg 
Reviewed-by: Pere Diaz Bou <pere-altea@homail.com>

Closes #1174
 2025-03-25 11:35:00 +02:00
Pekka Enberg
df6af6ed79 core: Rename FileStorage to DatabaseFile 2025-03-25 11:15:16 +02:00
Pekka Enberg
1f29e1fe08 Add PyPI link to README 2025-03-25 09:49:44 +02:00
Pekka Enberg
b507ac401d Merge 'Fix a typo in README.md' from Tshepang Mbambo 
Closes #1173
 2025-03-25 09:31:05 +02:00
Pekka Enberg
93c0a29611 Merge 'Fix platform specific FFI C pointer type casts' from Preston Thorpe 
Fixes #1159

Closes #1170
 2025-03-25 09:10:16 +02:00
Pekka Enberg
731c3f037a Merge 'Improve Python bindings' from Diego Reis 
Yet another PR to close #494.
While testing the code provided in the issue I noticed that it wasn't
closing the connection as it should, leading to lifetime issues like:
`Connection is unsendable, but is being dropped on another thread`. The
following code works fine:
```python
import limbo

def main():
    con = limbo.connect("test.db")
    cur = con.cursor()

    try:
        cur.execute("""
            CREATE TABLE IF NOT EXISTS users (
                id INTEGER PRIMARY KEY AUTOINCREMENT,
                username TEXT NOT NULL,
                email TEXT NOT NULL,
                role TEXT NOT NULL,
                created_at DATETIME NOT NULL DEFAULT (datetime('now'))
            )
        """)

        # Insert some sample data
        sample_users = [
            ("alice", "alice@example.com", "admin"),
            ("bob", "bob@example.com", "user"),
            ("charlie", "charlie@example.com", "moderator"),
            ("diana", "diana@example.com", "user")
        ]

        for username, email, role in sample_users:
            cur.execute("""
                INSERT INTO users (username, email, role)
                VALUES (?, ?, ?)
            """, (username, email, role))

        con.commit()

        # Query the table
        res = cur.execute("SELECT * FROM users")
        record = res.fetchone()
        print(record)

    finally:
        # Ensure connection is closed on the same thread <----
        con.close()
        pass

main()
```
You can test it [here](https://colab.research.google.com/drive/1NJau6Y9H
TRJrnYK_xp2AzwP_qEH8VsQx?usp=sharing)
To address these issues, this PR:
- Adds support for `with statement` a common resource management pattern
in Python;
- Close connection if it is dropped

Closes #1164
 2025-03-25 09:08:01 +02:00
Tshepang Mbambo
8b48c4b7b7 readme: typo 2025-03-25 09:06:40 +02:00
krishvishal
1660ae5542 missed adding _ and a space. 2025-03-25 12:04:48 +05:30
krishvishal
785be8479f Fix a fuzzer failure and add tcl test covering the failure 2025-03-25 11:43:51 +05:30
krishvishal
f12e3a6993 For a few TCL tests more. 2025-03-25 10:28:48 +05:30
krishvishal
a8129d5e58 Add TCL tests for compute_shl 2025-03-25 10:26:08 +05:30
krishvishal
b55dc586bd change compute_shl implementation to handle negation with overflow 2025-03-25 10:10:15 +05:30
krishvishal
6fe7e419e2 cleanup 2025-03-25 08:58:18 +05:30
krishvishal
ac29563efb Add test to verify balancing after maintains the following: 
1. Delete is working properly.
2. Balancing after delete still maintains the validity of btree.
 2025-03-25 08:55:13 +05:30
krishvishal
bf1718925e Delete with balancing now works!! 2025-03-25 08:38:18 +05:30
PThorpe92
e9420e7d2b Fix platform specific ffi c ptr types 2025-03-24 22:48:07 -04:00
PThorpe92
334f0a928a Adjust test to reflect new parse error 2025-03-24 21:05:50 -04:00
PThorpe92
4384659e5f Adjust vtab schema creation to display the underlying columns 2025-03-24 20:50:54 -04:00
Diego Reis
f499f756fb core/util: Fix invalid numeric parsing 
To see details: https://github.com/tursodatabase/limbo/issues/1157
 2025-03-24 20:21:09 -03:00
Diego Reis
5dba4999a7 core/util: Add unit tests for parse_numeric_str and fix whitespace handling 2025-03-24 19:56:13 -03:00
PThorpe92
7b55f7a167 Move explain to statement to allow for alternate writer 2025-03-24 18:48:12 -04:00
Diego Reis
160d48d34e ext/python: Workaround to file permission error 
To get more info see:
https://github.com/tursodatabase/limbo/actions/runs/14039536389/job/39312362848
 2025-03-24 16:39:24 -03:00
Diego Reis
6edf3dd3b1 ext/python: Makes linter happy 2025-03-24 12:40:59 -03:00
krishvishal
6a8d1deee6 Convert implementation into event loop style. 2025-03-24 20:52:17 +05:30
Diego Reis
9a8970b6a8 ext/python: Update example 2025-03-24 12:21:30 -03:00
Diego Reis
ab8187f4e6 ext/python: Gracefully close connection by closing it at Drop 2025-03-24 12:21:15 -03:00
Diego Reis
4ca5b11bed ext/python: Add support for Context Manager 2025-03-24 12:20:13 -03:00
Ihor Andrianov
59f00ff0c3 fix not removing lock if cache did not exist 2025-03-24 15:09:18 +02:00
Ihor Andrianov
d8e070a360 moved json_cache to state 2025-03-24 14:48:40 +02:00
Ihor Andrianov
e5199b0f1a add tests 2025-03-24 13:17:59 +02:00
Ihor Andrianov
1511c9b3bf add json cache to json functions and fix tests 2025-03-24 13:17:58 +02:00
Ihor Andrianov
615de2a0d3 add json_cache struct 2025-03-24 13:17:57 +02:00
Ihor Andrianov
1daab8cd7c add bench to check json cache 2025-03-24 13:17:57 +02:00
krishvishal
8c164530fa Remove linear search to obtain cell. current_cell_idx - 1 seems to work reliably. 2025-03-24 16:37:10 +05:30
Pekka Enberg
6798341b05 github: Don't close issues as stale so aggressively 2025-03-24 11:49:13 +02:00
Pekka Enberg
a9099cd6a5 Merge 'Schema translation cleanups' from Pekka Enberg 
Closes #1161
 2025-03-24 11:09:08 +02:00
Pekka Enberg
c5cdc859af Merge 'core: Fix Destroy opcode root page handling' from Pekka Enberg 
The `p1` register points to the root page, not to a cursor.
Fixes #1136

Closes #1162
 2025-03-24 11:09:00 +02:00
Pekka Enberg
65bf33023c core: Fix Destroy opcode root page handling 
The `p1` register points to the root page, not to a cursor.

Fixes #1136
 2025-03-24 10:54:49 +02:00
Pekka Enberg
0ec7dbc44e core: Move translate_create_table() to schema module 2025-03-24 10:44:41 +02:00
Pekka Enberg
0727f4aca6 core: Move temporary table handling to translate_create_table() 2025-03-24 10:38:55 +02:00
Pekka Enberg
7d4ac13926 core: Move translate_drop_table() to schema module 2025-03-24 10:37:02 +02:00
Pekka Enberg
31bbc5144a Merge 'Initial pass at UPDATE support' from Preston Thorpe 
This PR is to support `Update` queries. Follows sqlite behavior as much
as possible.
### limbo
```console
limbo> create table t (a,b,c);
limbo> explain update t set a = 1 where b = 2;
addr  opcode             p1    p2    p3    p4             p5  comment
----  -----------------  ----  ----  ----  -------------  --  -------
0     Init               0     18    0                    0   Start at 18
1     OpenWriteAsync     0     2     0                    0
2     OpenWriteAwait     0     0     0                    0
3     RewindAsync        0     0     0                    0
4     RewindAwait        0     17    0                    0   Rewind table t
5       Column           0     1     4                    0   r[4]=t.b
6       Ne               4     5     15                   0   if r[4]!=r[5] goto 15
7       RowId            0     6     0                    0   r[6]=t.rowid
8       IsNull           6     17    0                    0   if (r[6]==NULL) goto 17
9       Integer          1     1     0                    0   r[1]=1
10      Column           0     1     2                    0   r[2]=t.b
11      Column           0     2     3                    0   r[3]=t.c
12      MakeRecord       1     3     7                    0   r[7]=mkrec(r[1..3])
13      InsertAsync      0     7     6                    0
14      InsertAwait      0     0     0                    0
15    NextAsync          0     0     0                    0
16    NextAwait          0     5     0                    0
17    Halt               0     0     0                    0
18    Transaction        0     1     0                    0   write=true
19    Integer            2     5     0                    0   r[5]=2
20    Goto               0     1     0                    0
```
### sqlite
```console
sqlite> explain update t set a = 1 where b = 2;
addr  opcode         p1    p2    p3    p4             p5  comment
----  -------------  ----  ----  ----  -------------  --  -------------
0     Init           0     15    0                    0   Start at 15
1     Null           0     1     2                    0   r[1..2]=NULL
2     Noop           1     0     1                    0
3     OpenWrite      0     2     0     2              0   root=2 iDb=0; t
4     Rewind         0     14    0                    0
5       Column         0     1     5                    0   r[5]= cursor 0 column 1
6       Ne             6     13    5     BINARY-8       81  if r[5]!=r[6] goto 13
7       Rowid          0     2     0                    0   r[2]= rowid of 0
8       IsNull         2     14    0                    0   if r[2]==NULL goto 14
9       Integer        1     3     0                    0   r[3]=1
10      Column         0     1     4                    0   r[4]= cursor 0 column 1
11      MakeRecord     3     2     1                    0   r[1]=mkrec(r[3..4])
12      Insert         0     1     2     t              7   intkey=r[2] data=r[1]
13    Next           0     5     0                    1
14    Halt           0     0     0                    0
15    Transaction    0     1     1     0              1   usesStmtJournal=0
16    Integer        2     6     0                    0   r[6]=2
17    Goto           0     1     0                    0
```

Closes #1130
 2025-03-24 09:19:22 +02:00