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2671 Commits

Author SHA1 Message Date
PThorpe92
999205f896 Add documentation for connection api 2025-05-24 15:19:37 -04:00
PThorpe92
a2f8b2dfea Fix add check for invalid argv index for vtab constraints in main loop 2025-05-24 14:49:58 -04:00
PThorpe92
d11ef6b9c5 Add execute method to xConnect db interface for vtables 2025-05-24 14:49:58 -04:00
PThorpe92
c2ec6caae1 Finish integrating xConnect into vtable open api 2025-05-24 14:49:58 -04:00
PThorpe92
f61ccc78e8 Add from_ffi_ptr method to create OwnedValue from Ext type without taking ownership 2025-05-24 14:49:58 -04:00
PThorpe92
d51614a4fd Create extern functions to support vtab xConnect in core/ext 2025-05-24 14:49:57 -04:00
Jussi Saurio
8ed5334ca7 tests/fuzz: add compound_select_fuzz() 2025-05-24 13:12:41 +03:00
Jussi Saurio
f6443ae742 Support LIMIT with UNION ALL 2025-05-24 13:12:41 +03:00
Jussi Saurio
08bda9cc58 UNION ALL 2025-05-24 13:12:41 +03:00
Jussi Saurio
0b2c3298aa Merge 'refactor: introduce walk_expr() and walk_expr_mut() to reduce repetitive pattern matching' from Jussi Saurio 
We do a lot of
```rust
match expr {
  ...
}
```
just to find some specific case like `Expr::Column` deep inside an
expression tree. This PR introduces new helpers `walk_expr()` and
`walk_expr_mut()` that handle the tree-walking part, and the business
logic functions where this tree traversal is used can focus on the exact
enum variants of `Expr` that they are interested in.

Closes #1564
 2025-05-23 22:00:20 +03:00
Jussi Saurio
70433e100d Merge 'btree: fix infinite looping in backwards iteration of btree table' from Jussi Saurio 
Closes #1562
Existing "fuzz test" (not really fuzz, but kinda) didn't catch this due
to `LIMIT 3` clause

Closes #1563
 2025-05-23 21:46:16 +03:00
Jussi Saurio
2e095e6d03 Merge 'Add some comments for values statement' from meteorgan 
follow up: #1549
simultaneously, address a warning in CI as the package `sqlite3-parser`
has been renamed to `limbo_sqlite3_parser`.

Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>

Closes #1565
 2025-05-23 17:30:30 +03:00
meteorgan
3bf0ce7fb3 Add some comments for values statement 2025-05-23 22:11:34 +08:00
Jussi Saurio
1a937462b3 Merge 'core/pragma: Add support for update user_version' from Diego Reis 
It also changes the type from u32 to i32 since
sqlite supports negative values

Closes #1559
 2025-05-23 17:00:55 +03:00
Jussi Saurio
c18c6a00fa refactor: use walk_expr() in resolving vtab constraints 2025-05-23 16:28:56 +03:00
Jussi Saurio
fbfd2b2c38 refactor: use walk_expr_mut() in rewrite_expr() 2025-05-23 16:27:28 +03:00
Jussi Saurio
362347c474 refactor: use walk_expr() in determine_where_to_eval_expr() 2025-05-23 16:27:28 +03:00
Jussi Saurio
9ec84e3905 refactor: use walk_expr() in table_mask_from_expr() 2025-05-23 16:27:28 +03:00
Jussi Saurio
3835a29f47 refactor: use walk_expr() in resolve_aggregates() 2025-05-23 16:27:23 +03:00
Jussi Saurio
2ab5c5f6a9 refactor: use walk_expr_mut() in bind_column_references() 2025-05-23 15:56:49 +03:00
Jussi Saurio
40a4d162bc Introduce walker expressions for ast::Expr 2025-05-23 15:56:27 +03:00
Diego Reis
2d6405b3e9 core/pragma: Remove unnecessary clone in user_version and cache_size 2025-05-23 08:43:07 -03:00
Jussi Saurio
cbb56a182e Fix bug: backwards iteration of table btree hangs 2025-05-23 14:23:18 +03:00
Jussi Saurio
597020bc0c Merge 'Support values statement and values in select' from meteorgan 
Close: #866
**limbo output**:
```
limbo> explain values(1, 2);
addr  opcode             p1    p2    p3    p4             p5  comment
----  -----------------  ----  ----  ----  -------------  --  -------
0     Init               0     5     0                    0   Start at 5
1     Integer            1     1     0                    0   r[1]=1
2     Integer            2     2     0                    0   r[2]=2
3     ResultRow          1     2     0                    0   output=r[1..2]
4     Halt               0     0     0                    0
5     Goto               0     1     0                    0

limbo> explain values(1, 2), (3, 4);
addr  opcode             p1    p2    p3    p4             p5  comment
----  -----------------  ----  ----  ----  -------------  --  -------
0     Init               0     16    0                    0   Start at 16
1     InitCoroutine      1     9     2                    0
2     Integer            1     2     0                    0   r[2]=1
3     Integer            2     3     0                    0   r[3]=2
4     Yield              1     0     0                    0
5     Integer            3     2     0                    0   r[2]=3
6     Integer            4     3     0                    0   r[3]=4
7     Yield              1     0     0                    0
8     EndCoroutine       1     0     0                    0
9     InitCoroutine      1     0     2                    0
10    Yield              1     15    0                    0
11    Copy               2     4     0                    0   r[4]=r[2]
12    Copy               3     5     0                    0   r[5]=r[3]
13    ResultRow          4     2     0                    0   output=r[4..5]
14    Goto               0     10    0                    0
15    Halt               0     0     0                    0
16    Goto               0     1     0                    0

limbo> explain select * from (values(1, 2), (3, 4));
addr  opcode             p1    p2    p3    p4             p5  comment
----  -----------------  ----  ----  ----  -------------  --  -------
0     Init               0     16    0                    0   Start at 16
1     InitCoroutine      1     9     2                    0
2     Integer            1     2     0                    0   r[2]=1
3     Integer            2     3     0                    0   r[3]=2
4     Yield              1     0     0                    0
5     Integer            3     2     0                    0   r[2]=3
6     Integer            4     3     0                    0   r[3]=4
7     Yield              1     0     0                    0
8     EndCoroutine       1     0     0                    0
9     InitCoroutine      1     0     2                    0
10    Yield              1     15    0                    0
11    Copy               2     4     0                    0   r[4]=r[2]
12    Copy               3     5     0                    0   r[5]=r[3]
13    ResultRow          4     2     0                    0   output=r[4..5]
14    Goto               0     10    0                    0
15    Halt               0     0     0                    0
16    Transaction        0     0     0                    0   write=false
17    Goto               0     1     0                    0
```
**sqlite output**:
```
sqlite> explain values(1, 2);
addr  opcode         p1    p2    p3    p4             p5  comment
----  -------------  ----  ----  ----  -------------  --  -------------
0     Init           0     5     0                    0   Start at 5
1     Integer        1     1     0                    0   r[1]=1
2     Integer        2     2     0                    0   r[2]=2
3     ResultRow      1     2     0                    0   output=r[1..2]
4     Halt           0     0     0                    0
5     Goto           0     1     0                    0
sqlite> explain values(1, 2), (3, 4);
addr  opcode         p1    p2    p3    p4             p5  comment
----  -------------  ----  ----  ----  -------------  --  -------------
0     Init           0     16    0                    0   Start at 16
1     InitCoroutine  1     9     2                    0
2     Integer        1     4     0                    0   r[4]=1
3     Integer        2     5     0                    0   r[5]=2
4     Yield          1     0     0                    0
5     Integer        3     4     0                    0   r[4]=3
6     Integer        4     5     0                    0   r[5]=4
7     Yield          1     0     0                    0
8     EndCoroutine   1     0     0                    0
9     InitCoroutine  1     0     2                    0
10      Yield          1     15    0                    0   next row of 2-ROW VALUES CLAUSE
11      Copy           4     8     0                    2   r[8]=r[4]
12      Copy           5     9     0                    2   r[9]=r[5]
13      ResultRow      8     2     0                    0   output=r[8..9]
14    Goto           0     10    0                    0
15    Halt           0     0     0                    0
16    Goto           0     1     0                    0
sqlite>  explain select * from (values(1, 2), (3, 4));
addr  opcode         p1    p2    p3    p4             p5  comment
----  -------------  ----  ----  ----  -------------  --  -------------
0     Init           0     16    0                    0   Start at 16
1     InitCoroutine  1     9     2                    0
2     Integer        1     4     0                    0   r[4]=1
3     Integer        2     5     0                    0   r[5]=2
4     Yield          1     0     0                    0
5     Integer        3     4     0                    0   r[4]=3
6     Integer        4     5     0                    0   r[5]=4
7     Yield          1     0     0                    0
8     EndCoroutine   1     0     0                    0
9     InitCoroutine  1     0     2                    0
10      Yield          1     15    0                    0   next row of 2-ROW VALUES CLAUSE
11      Copy           4     8     0                    2   r[8]=r[4]
12      Copy           5     9     0                    2   r[9]=r[5]
13      ResultRow      8     2     0                    0   output=r[8..9]
14    Goto           0     10    0                    0
15    Halt           0     0     0                    0
16    Goto           0     1     0                    0
```

Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>

Closes #1549
 2025-05-23 13:56:31 +03:00
meteorgan
01c8a4ca63 simpify values when it's subquery 2025-05-23 17:45:56 +08:00
Jussi Saurio
128a406f8c TableReference: fix stale comment 2025-05-23 10:06:24 +03:00
Zaid Humayun
bc5d93c18a Addresses comment https://github.com/tursodatabase/limbo/pull/1548#discussion_r2103333264 by @jussisaurio 
this commit uses more descriptive names for registers
 2025-05-23 10:19:08 +05:30
Diego Reis
2f8042da22 core/pragma: Add support for update user_version 
It also changes the type from u32 to i32 since
sqlite supports negative values
 2025-05-22 20:38:27 -03:00
Zaid Humayun
4312d371fb addresses comment https://github.com/tursodatabase/limbo/pull/1548#discussion_r2102606810 by @jussisaurio 
this commit changes the btree_destroy() signature to return an Option<usize>. This more closely resembles Rust semantics instead of passing a pointer to a usize.
However, I'm unsure if I'm handling the cursor result correctly
 2025-05-23 00:46:05 +05:30
Zaid Humayun
780d0cb5a8 addresses https://github.com/tursodatabase/limbo/pull/1548#discussion_r2102599487, https://github.com/tursodatabase/limbo/pull/1548#discussion_r2102601189 & https://github.com/tursodatabase/limbo/pull/1548#discussion_r2102602774 by @jussisaurio 
this commit addresses comments regarding using decsriptive variable names for the loops and loop labels. Also, adds documentation for instructions that cause jumps in both loops
 2025-05-23 00:31:19 +05:30
Zaid Humayun
3a8b18c481 addressed comment https://github.com/tursodatabase/limbo/pull/1548#discussion_r2102595246 by @jussisaurio 
this commit addresses the comment regarding inline code documentation
 2025-05-23 00:12:27 +05:30
Zaid Humayun
1999eac891 Fixes test Testing: can drop kv_store vtable 
Earlier this test broke because the code to translate the drop table was not checking to see if a table was not a virtual table.
SQLite does this with a macro called IsVirtualTable. Here, I check with the existing methods on the BTree struct
 2025-05-22 23:53:48 +05:30
meteorgan
34e05ef974 make values work in subquery 2025-05-23 00:30:04 +08:00
meteorgan
0467d7e11b Support values statement and values in select 2025-05-23 00:29:54 +08:00
Zaid Humayun
4072a41c9c Drop Table now uses an ephemeral table as a scratch table 
Now when dropping a table, an ephemeral table is created as a scratch table. If a root page of some other table is moved into the page occupied by the root page of the table being dropped, that row is first written into an ephemeral table. Then on a next pass, it is deleted from the schema table and then re-inserted with the new root page.

This happens during AUTOVACUUM when deleting a root page will force the last root page to move into the slot being vacated by the root page of the table being deleted
 2025-05-22 19:39:46 +05:30
Jussi Saurio
0c4c451d2a rename 2025-05-22 16:51:03 +03:00
Jussi Saurio
6ed5412bde extract method 2025-05-22 16:51:03 +03:00
Jussi Saurio
df8a19767f Fixes to account for collation 2025-05-22 16:51:03 +03:00
Jussi Saurio
f3ea9a603a add support for SELECT DISTINCT 2025-05-22 16:51:03 +03:00
Jussi Saurio
b0c3483e94 Allocate ephemeral index for SELECT DISTINCT 2025-05-22 16:51:03 +03:00
Jussi Saurio
76227ec274 Rename to Distinctness + add distinctness information to SelectPlan 2025-05-22 16:51:03 +03:00
Jussi Saurio
533a00eae3 Fix bug in op_decr_jump_zero() 2025-05-22 11:40:49 +03:00
Jussi Saurio
8bec75d804 Merge 'Initial Support for Nested Translation' from Pedro Muniz 
This PR introduces some modifications to the Program Builder to allow us
to use nested parsing. By focusing the emission of Init and the last
Goto (prologue and epilogue), inside the ProgramBuilder, we can just not
emit them if we are parsing/translating in a nested context. For this
PR, I only migrated insert to use these functions as I need them to
support Insert statements that use `SELECT FROM` syntax. Nested parsing
overall enables code reuse for us and arguably is one of the only ways
to parse deeply nested queries without a lot of code duplication.
#1528

Closes #1543
 2025-05-22 10:52:00 +03:00
Jussi Saurio
c7f984c5c8 Merge 'Page cache fixes' from Pere Diaz Bou 
This PR builds on top of
https://github.com/tursodatabase/limbo/pull/1368 and adds few things
like allowing inserting pages with the same page key, fix fuzz tests by
adding transactions and some minor improvements to cacheflush.

Closes #1523
 2025-05-22 10:12:56 +03:00
Jussi Saurio
fc150b12c9 Merge 'CSV virtual table extension' from Piotr Rżysko 
This PR adds a port of [SQLite's CSV virtual table
extension](https://www.sqlite.org/csv.html).
Planned follow-ups:
* Pass detailed error messages from `VTabModule::create`, not just
`ResultCode`s.
* Address the TODO in `VTabModuleImpl::create_schema`.

Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>

Closes #1544
 2025-05-22 09:48:53 +03:00
pedrocarlo
53bf5d5ef5 adjust translate functions to take a program instead of Option<ProgramBuilder> + remove any Init emission in traslate functions + use epilogue in all places necessary 2025-05-21 16:41:10 -03:00
pedrocarlo
1c12535d9f push prologue to top-level translate function 2025-05-21 15:50:43 -03:00
pedrocarlo
8084d54c26 lift pragma statement handling as it cannot be created in a nested context 2025-05-21 14:13:28 -03:00
pedrocarlo
d21229d4a3 create inner translate function to enable calling it from a nested context 2025-05-21 14:08:02 -03:00
pedrocarlo
3090dd91fa push translate_ctx creation outside of prologue 2025-05-21 13:06:25 -03:00