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5832 Commits

Author SHA1 Message Date
PThorpe92
a1ac0ca175 Handle limit zero case in query plan emitter 2025-03-26 15:33:05 -04:00
krishvishal
1b77b76d58 Add comments detailing Delete state machine flow and few delete steps. 2025-03-27 01:02:59 +05:30
krishvishal
fe7ff6f53d Add balancing states. Balancing test works. 2025-03-27 00:27:03 +05:30
Pekka Enberg
c1a0236dcc Merge 'Introduce immutable record' from Pere Diaz Bou 
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.

Closes #1176
 2025-03-26 20:31:04 +02:00
krishvishal
3e3a0f56a1 Make delete re-entrant. 
Setup DeleteState enum
 2025-03-26 22:44:49 +05:30
Pere Diaz Bou
f07f10ac53 fix read empty blob/text 2025-03-26 18:11:44 +01:00
Pekka Enberg
114847415b Merge 'WAL frame checksum support' from Daniel Boll 
closes #1151

Closes #1184
 2025-03-26 17:48:52 +02:00
Daniel Boll
c2a2dfa67b Remove unused imports and handle WAL header read error 
Refactor random number generation for WAL header salts
 2025-03-26 11:31:29 -03:00
Pekka Enberg
fca643641c Merge 'Fix compute_shl negate with overflow' from Krishna Vishal 
Fixes #1156
- Changed `compute_shl` implementation to handle negation with overflow.
- Added TCL tests.

Closes #1171
 2025-03-26 16:08:59 +02:00
Pekka Enberg
3cb8cda746 Merge 'Unary + is a noop' from Levy A. 
Fixes #1154.
Unary `+` is a noop in Sqlite: <https://sqlite.org/lang_expr.html#operat
ors_and_parse_affecting_attributes>.

Closes #1177
 2025-03-26 15:59:45 +02:00
Pere Diaz Bou
63cf86ba36 fix comparison of records 2025-03-26 10:10:19 +01:00
krishvishal
16d77acac6 Add comments describing the test_delete_balancing 2025-03-26 12:29:19 +05:30
Daniel Boll
4ea3faf0f0 Remove unnecessary TODO comment in wal.rs 2025-03-25 21:46:17 -03:00
Daniel Boll
6d42d6d485 Remove commented-out code and update min_frame assignment 2025-03-25 21:44:18 -03:00
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
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
df6af6ed79 core: Rename FileStorage to DatabaseFile 2025-03-25 11:15:16 +02:00
krishvishal
785be8479f Fix a fuzzer failure and add tcl test covering the failure 2025-03-25 11:43:51 +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
krishvishal
6a8d1deee6 Convert implementation into event loop style. 2025-03-24 20:52:17 +05:30
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
a9099cd6a5 Merge 'Schema translation cleanups' from Pekka Enberg 
Closes #1161
 2025-03-24 11:09:08 +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
Pekka Enberg
e8c0a6e728 Merge 'Various JSON improvements' from Ihor Andrianov 
Added jsonb_object, jsonb_array, json_insert, jsonb_insert.
MongoDB is sweating now.

Closes #1160
 2025-03-24 09:17:40 +02:00
PThorpe92
a0188e5163 Use bind_col_refs to rewrite the Id expressions 2025-03-23 22:18:41 -04:00
PThorpe92
1202653e76 Use normal conditional translation for update where clause 2025-03-23 19:20:14 -04:00