Depends on #3920
Moves some code around so it is easier to reuse and less cluttered in
`execute.rs`, and changes how `compare` works. Instead of mutating some
register, we now just return the possible `ValueRef` representation of
that affinity. This allows other parts of the codebase to reuse this
logic without needing to have an owned `Value` or a `&mut Register`
Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>
Closes#3923
Depends on #3919
Also change `op_compare` to reuse the same compare_immutable logic
First step to finish #2304
Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>
Closes#3920
Makes it easier to visualize what is related to Value and what is
related to opcodes. This will also facilitate in my next PR to
generalize certain function over `Value` and `ValueRef` as listed in
#2304Closes#3919
`ParamState` was a leftover from when we were doing some hacky rewriting
of anonymous Parameters/`Expr::Variable`s internally before it was moved
to the parser.
Closes#3926
This PR implements more sophisticated algorithm in the toy vector sparse
index: now we enumerate components based on the frequency (in order to
check unpopular "features" first) and also estimate length threshold
which can give us better results compared with current top-k set.
Also, this PR adds optional `delta` parameter which can enable
approximate search which will return results with score not more than
`delta` away from the optimal.
In order to implement this index method - index code were slightly
adjusted in order to allow to store some non-key payload in the index
rows. So, now index can hold N columns where first K <= N columns will
be used as identity (before that K always was equal to N).
Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com>
Closes#3862
Partial sync for sync engine will need to implement its own version of
`DatabaseStorage` which willl load database pages on demand
Reviewed-by: Preston Thorpe <preston@turso.tech>
Closes#3922
## Related issue
- closes#3885
## Description
Add a check to reject dropping a table when PRAGMA foreign_keys=ON and
the table is referenced by foreign keys
Reviewed-by: Preston Thorpe <preston@turso.tech>
Closes#3913
Closes#3892Closes#3888
Stuff like:
```sql
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values (1, 2);
select case (select y, z from t2) when 1 then 'one' else 'other' end from t1;
× Parse error: base expression in CASE must return 1 value
turso> create table t(x, y);
insert into t values (1, 2);
select (select x, y from t) as result;
× Parse error: result column must return 1 value, got 2
turso> create table t1(x,y);
create table t2(y);
insert into t1 values (1,1);
insert into t2 values (1);
select * from t2 where y = (select x,y from t1);
× Parse error: all arguments to binary operator = must return the same number of
│ values. Got: (1) = (2)
turso> create table orders(customer_id, amount);
create table thresholds(min_amount, max_amount);
insert into orders values (100, 50), (100, 150);
insert into thresholds values (100, 200);
select customer_id, sum(amount) as total
from orders
group by customer_id
having total > (select min_amount, max_amount from thresholds);
× Parse error: all arguments to binary operator > must return the same number of
│ values. Got: (1) > (2)
turso> create table items(id);
create table config(max_results, other_col);
insert into items values (1), (2), (3);
insert into config values (2, 3);
select * from items limit (select max_results, other_col from config);
× Parse error: limit expression must return 1 value, got 2
turso> create table items(id);
create table config(skip_count, other_col);
insert into items values (1), (2), (3);
insert into config values (1, 2);
select * from items limit 1 offset (select skip_count, other_col from config);
× Parse error: offset expression must return 1 value, got 2
turso> create table items(id, name);
create table sort_order(priority, other_col);
insert into items values (1, 'a'), (2, 'b');
insert into sort_order values (1, 2);
select * from items order by (select priority, other_col from sort_order);
× Parse error: order by expression must return 1 value, got 2
turso> create table sales(product_id, amount);
create table grouping(category, other_col);
insert into sales values (1, 100), (2, 200);
insert into grouping values (1, 2);
select sum(amount) from sales group by (select category, other_col from grouping);
× Parse error: group by expression must return 1 value, got 2
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values (1, 2);
select case when (select y, z from t2) then 'yes' else 'no' end from t1;
× Parse error: when expression in CASE must return 1 value. Got: (2)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values (1, 2);
select case when x = 1 then (select y, z from t2) else 0 end from t1;
× Parse error: then expression in CASE must return 1 value. Got: (2)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values (1, 2);
select case when x = 2 then 0 else (select y, z from t2) end from t1;
× Parse error: else expression in CASE must return 1 value. Got: (2)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values (1, 2);
select max((select y, z from t2)) from t1;
× Parse error: argument 0 to function call max must return 1 value. Got: (2)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values (1, 2);
select x + (select y, z from t2) from t1;
× Parse error: all arguments to binary operator + must return the same number of
│ values. Got: (1) + (2)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (5);
insert into t2 values (1, 2);
select * from t1 where x between (select y, z from t2) and 10;
× Parse error: all arguments to binary operator <= must return the same number of
│ values. Got: (2) <= (1)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values (1, 2);
select cast((select y, z from t2) as integer) from t1;
× Parse error: argument to CAST must return 1 value. Got: (2)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values ('a', 'b');
select (select y, z from t2) collate nocase from t1;
× Parse error: argument to COLLATE must return 1 value. Got: (2)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values (1, 2);
select * from t1 where (select y, z from t2) is null;
× Parse error: all arguments to binary operator IS must return the same number of
│ values. Got: (2) IS (1)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values (1, 2);
select * from t1 where (select y, z from t2) not null;
× Parse error: argument to NOT NULL must return 1 value. Got: (2)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values ('a', 'b');
select * from t1 where (select y, z from t2) like 'a%';
× Parse error: left operand of LIKE must return 1 value. Got: (2)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values (1, 2);
select -(select y, z from t2) from t1;
× Parse error: argument to unary operator - must return 1 value. Got: (2)
turso> create table t1(x);
create table t2(y, z);
insert into t1 values (1);
insert into t2 values (1, 2);
select abs((select y, z from t2)) from t1;
× Parse error: argument 0 to function call abs must return 1 value. Got: (2)
```
Closes#3906
