Pekka Enberg
698b87fc86
Merge pull request #133 from benclmnt/kqueue-io
...
Use kqueue for Darwin IO
2024-07-13 10:40:01 +03:00
Bennett Clement
30e4a70d07
ignore wasm compilation target
2024-07-13 15:17:18 +08:00
Pekka Enberg
9c8e94acee
Merge pull request #132 from gvos94/graghura/add-pipfile
2024-07-13 06:52:55 +03:00
Bennett Clement
26152e07e5
Use kqueue for Darwin IO
2024-07-13 09:44:03 +08:00
gandeevanr
b728208526
Updated Pipfile
2024-07-12 13:07:34 -07:00
gandeevanr
31a8972d7f
Updated README.md to use pipenv
2024-07-12 12:42:24 -07:00
gandeevanr
9466ec82e7
Added Pipfile and Pipfile.lock
2024-07-12 12:38:56 -07:00
Pekka Enberg
c419fa9385
Merge pull request #131 from seonWKim/fix-typos
2024-07-12 19:23:14 +03:00
김선우
6aabd919da
Fix typo
2024-07-12 23:19:44 +09:00
Pekka Enberg
2540f7d127
Merge pull request #130 from JoanFM/feat-help-msg
2024-07-12 13:04:16 +03:00
Joan Martinez
346279f9bb
add help message to CLI
2024-07-12 12:00:20 +02:00
Pekka Enberg
b14150f3b5
sqlite3: Add stubs to make Python build link
...
Add enough stubs to be able to link CPython build against Limbo's SQLite
compatibility API:
```
export LIBSQLITE3_LIBS=../limbo/target/debug/liblimbo_sqlite3.a
./configure
make -j8
[snip]
gcc -shared Modules/_sqlite/blob.o Modules/_sqlite/connection.o Modules/_sqlite/cursor.o Modules/_sqlite/microprotocols.o Modules/_sqlite/module.o Modules/_sqlite/prepare_protocol.o Modules/_sqlite/row.o Modules/_sqlite/statement.o Modules/_sqlite/util.o ../limbo/target/debug/liblimbo_sqlite3.a -o Modules/_sqlite3.cpython-314-x86_64-linux-gnu.so
thread '<unnamed>' panicked at sqlite3/src/lib.rs:751:5:
not yet implemented
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
fatal runtime error: failed to initiate panic, error 5
make: *** [Makefile:1511: checksharedmods] Aborted (core dumped)
```
All that's left is to actually implement all of this...
2024-07-12 10:08:37 +03:00
Pekka Enberg
f6704ba3e0
Update opcode compat
2024-07-12 08:41:44 +03:00
Pekka Enberg
19d873f3e6
Update changelog and compat
2024-07-12 08:31:52 +03:00
Pekka Enberg
3e8da8e4c5
Document how to run compat tests with SQLite
2024-07-12 08:27:06 +03:00
Pekka Enberg
55adf93282
Fix broken WHERE clause test case
...
The broken test case does not pass on SQLite so it's wrong. I suspect
the test was written before commit e377e09 ("Fix avg(), total(), count()
default value on empty set") when Limbo showed this behavior.
2024-07-12 08:22:13 +03:00
Pekka Enberg
f1bca597cb
Merge pull request #121 from jussisaurio/where-clauses
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Basic where clause support
2024-07-12 08:21:38 +03:00
jussisaurio
1b0aa568a4
Basic where clause support
2024-07-12 00:26:32 +03:00
Pekka Enberg
3d15198d4c
Update compatibility table and changelog
2024-07-11 20:13:16 +03:00
Pekka Enberg
4affff0655
Merge pull request #120 from benclmnt/fix-aggfn-empty-state
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Fix avg(), total(), count() default value on empty set
2024-07-11 20:11:37 +03:00
Bennett Clement
e377e09498
Fix avg(), total(), count() default value on empty set
2024-07-12 00:20:44 +08:00
Pekka Enberg
79ba53f190
Merge pull request #119 from benclmnt/support-total-aggfn
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Implement total() aggregation function
2024-07-11 18:48:16 +03:00
Bennett Clement
8a9eb74f9b
Implement total() aggregation function
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- Returns 0.0 when called on non integer / non float columns
- Always returns floating point number
- fix: default for sum() should be NULL when there is no non-NULL row
per docs
2024-07-11 23:40:55 +08:00
Pekka Enberg
0a304a98b5
Merge pull request #117 from Ramkarthik/main
2024-07-11 14:23:04 +03:00
Ramkarthik Krishnamurthy
f038c1c7d2
Indent only the opcode value
2024-07-11 16:19:23 +05:30
Pekka Enberg
7f1cacf788
Update README.md
2024-07-11 11:09:54 +03:00
Pekka Enberg
d8af1aa73b
Format source code with cargo fmt
2024-07-11 10:43:34 +03:00
Pekka Enberg
db73092592
Merge pull request #116 from penberg/limit-zero-cleanup
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Simplify `LIMIT 0` handling in translate_select()
2024-07-11 09:58:35 +03:00
Pekka Enberg
d8078d5e19
Simplify LIMIT 0 handling in translate_select()
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It's a special-case so let's make it special like SQLite does.
Simplifies the logic in `translate_select()` quite a bit.
2024-07-11 09:42:24 +03:00
Pekka Enberg
46e34daccd
Merge pull request #115 from pereman2/real-affinity
2024-07-11 08:11:18 +03:00
Pere Diaz Bou
780908a771
cli: change float print
...
Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-07-10 21:39:29 +02:00
Pere Diaz Bou
538d624770
core: apply Real affinity on columns stored as int
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Values in sqlite3, as expected, can be stored in different formats to
optimize disk usage. In this case, a 79.0 float will be transformed to a
u8.
sqlite3 deals with this by adding a RealAffinity op after each column
that might need it. Therefore, in this pr we do exactly that :).
Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-07-10 21:21:49 +02:00
Pekka Enberg
5e47dfabaf
Drop Select::from member field
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It's not used anywhere.
2024-07-10 15:17:04 +03:00
Pekka Enberg
a46912c355
Merge pull request #113 from penberg/kill-select-context
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Fold SelectContext to Select
2024-07-10 15:13:37 +03:00
Pekka Enberg
0316385150
Fold SelectContext to Select
...
We can use Select to keep track of loops and stuff. Having a separate
SelectContext just means we need to pass around more objects to
functions.
2024-07-10 15:09:30 +03:00
Pekka Enberg
f2b1971def
Simplify AST type paths
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The `sqlite3_parser` prefix is redundant.
2024-07-10 11:08:07 +03:00
Pekka Enberg
5b36ca12ad
Merge pull request #111 from Ramkarthik/main
2024-07-09 22:54:43 +03:00
Ramkarthik Krishnamurthy
ae68c96635
Indent EXPLAIN output like SQLite
2024-07-10 00:01:52 +05:30
Pekka Enberg
fee82542d4
Merge pull request #109 from pereman2/refactor-sqlite3WhereBegin
2024-07-09 20:16:33 +03:00
Pere Diaz Bou
e557b7b9ee
core: add comment for src_tables
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Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-07-09 18:48:26 +02:00
Pere Diaz Bou
61d0f877e3
core: create list of src tables
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Instead of having divided "from table" and "join tables", we merge them
in to a list of `src_tables`.
Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-07-09 18:46:35 +02:00
Pere Diaz Bou
d41319a837
core: remove hash for Table
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Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-07-09 18:14:32 +02:00
Pere Diaz Bou
46592e7b34
core: fix translate_expr args from new agg functions
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Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-07-09 18:10:18 +02:00
Pere Diaz Bou
90a4fc6bb8
test: cross-join-specific-columns
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Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-07-09 18:08:16 +02:00
Pere Diaz Bou
110df3cff1
core: fix resolve table name from join
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Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-07-09 18:08:16 +02:00
Pere Diaz Bou
e0431fdde1
testing: update testing with products table and cross join test
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Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-07-09 18:08:16 +02:00
Pere Diaz Bou
0b0885325c
core: refactor generation of table row read
...
In sqlite3 generating the loop to read multiple joined tables follows
the pattern:
```c
sqlite3WhereBegin();
sqlite3WhereEnd();
```
and this generates:
```
sqlite> explain select * from users, products;
addr opcode p1 p2 p3 p4 p5 comment
---- ------------- ---- ---- ---- ------------- -- -------------
0 Init 0 23 0 0 Start at 23
1 OpenRead 0 2 0 10 0 root=2 iDb=0; users
2 OpenRead 1 3 0 3 0 root=3 iDb=0; products
3 Rewind 0 22 0 0
4 Rewind 1 22 0 0
5 Rowid 0 1 0 0 r[1]=users.rowid
6 Column 0 1 2 0 r[2]= cursor 0 column 1
7 Column 0 2 3 0 r[3]= cursor 0 column 2
8 Column 0 3 4 0 r[4]= cursor 0 column 3
9 Column 0 4 5 0 r[5]= cursor 0 column 4
10 Column 0 5 6 0 r[6]= cursor 0 column 5
11 Column 0 6 7 0 r[7]= cursor 0 column 6
12 Column 0 7 8 0 r[8]= cursor 0 column 7
13 Column 0 8 9 0 r[9]= cursor 0 column 8
14 Column 0 9 10 0 r[10]= cursor 0 column 9
15 Rowid 1 11 0 0 r[11]=products.rowid
16 Column 1 1 12 0 r[12]= cursor 1 column 1
17 Column 1 2 13 0 r[13]= cursor 1 column 2
18 RealAffinity 13 0 0 0
19 ResultRow 1 13 0 0 output=r[1..13]
20 Next 1 5 0 1
21 Next 0 4 0 1
22 Halt 0 0 0 0
23 Transaction 0 0 2 0 1 usesStmtJournal=0
24 Goto 0 1 0 0
```
`sqlite3WhereBegin()` as the name represents, mainly does stuff with
`WHERE` expressions + loop generation. This is why I decided to change
the name to `translate_tables_begin` to try improve the naming.
In our case:
```rust
translate_table_open_cursor(program, &mut context, select.from.as_ref().unwrap());
translate_table_open_loop(program, &mut context, loop_index);
```
translates into:
```sql
> explain select * from users, products;
addr opcode p1 p2 p3 p4 p5 comment
---- ------------- ---- ---- ---- ------------- -- -------
0 Init 0 28 0 0 Start at 28
1 OpenReadAsync 0 2 0 0 root=2
2 OpenReadAwait 0 0 0 0
3 OpenReadAsync 1 3 0 0 root=3
4 OpenReadAwait 0 0 0 0
5 RewindAsync 0 0 0 0
6 RewindAwait 0 27 0 0
7 RewindAsync 1 0 0 0
8 RewindAwait 1 25 0 0
9 RowId 0 0 0 0
10 Column 0 1 1 0 r[1]= cursor 0 column 1
11 Column 0 2 2 0 r[2]= cursor 0 column 2
12 Column 0 3 3 0 r[3]= cursor 0 column 3
13 Column 0 4 4 0 r[4]= cursor 0 column 4
14 Column 0 5 5 0 r[5]= cursor 0 column 5
15 Column 0 6 6 0 r[6]= cursor 0 column 6
16 Column 0 7 7 0 r[7]= cursor 0 column 7
17 Column 0 8 8 0 r[8]= cursor 0 column 8
18 Column 0 9 9 0 r[9]= cursor 0 column 9
19 RowId 1 10 0 0
20 Column 1 1 11 0 r[11]= cursor 1 column 1
21 Column 1 2 12 0 r[12]= cursor 1 column 2
22 ResultRow 0 13 0 0 output=r[0..13]
23 NextAsync 1 0 0 0
24 NextAwait 1 8 0 0
25 NextAsync 0 0 0 0
26 NextAwait 0 6 0 0
27 Halt 0 0 0 0
28 Transaction 0 0 0 0
29 Goto 0 1 0 0
```
This works on as many joined tables but... it is ready to extend for
further join operations.
Signed-off-by: Pere Diaz Bou <pere-altea@hotmail.com >
2024-07-09 18:08:16 +02:00
Pekka Enberg
c5272afdd6
Add JSON functions to sqlite-compat.md
2024-07-09 12:28:31 +03:00
Pekka Enberg
704a9c214e
Update compatibility doc and changelog
2024-07-09 12:17:55 +03:00
Pekka Enberg
01ed0f8257
Merge pull request #107 from ishanjain28/iouring_direct
2024-07-09 09:19:11 +03:00