Jussi Saurio 696c98877c Merge 'btree: Remove assumption that all btrees have a rowid' from Jussi Saurio ...

For example, implementing `SELECT DISTINCT` (#1517) and `UNION` (#1545)
require that we are able to create indexes without a rowid column
present. Similarly, `WITHOUT ROWID` tables require this.
I implemented this by replacing the `rowid` and `empty_record`
properties in `BtreeCursor` with
```rust
/// Whether the cursor is currently pointing to a record.
#[derive(Debug, Clone, Copy, PartialEq)]
enum CursorHasRecord {
    Yes {
        rowid: Option<u64>, // not all indexes and btrees have rowids, so this is optional.
    },
    No,
}
```

Reviewed-by: Pere Diaz Bou <pere-altea@homail.com>

Closes #1518

2025-05-21 14:53:00 +03:00

..

access_method.rs

Remove unnecessary method

2025-05-14 09:42:26 +03:00

constraints.rs

Add some utilities to constraint related structs

2025-05-14 09:42:26 +03:00

cost.rs

cost.rs: simplify cost estimation

2025-05-14 09:42:26 +03:00

join.rs

schema: add Index::has_rowid

2025-05-20 14:22:17 +03:00

lift_common_subexpressions.rs

Adjust logic not to delete WhereTerms, since 'consumed' property was introduced

2025-05-20 14:28:05 +03:00

mod.rs

Merge 'btree: Remove assumption that all btrees have a rowid' from Jussi Saurio

2025-05-21 14:53:00 +03:00

OPTIMIZER.md

Add more documentation to OPTIMIZER.MD

2025-05-14 09:42:26 +03:00

order.rs

optimizer: remove order by if group by already sorts the result properly

2025-05-17 17:42:52 +03:00