# Description of Changes
The first commit defines a type `TableName` that is used in e.g.,
`TxData` and where determined profitable and necessary to do this
change.
`TableName` is backed by
[`ecow::EcoString`](https://docs.rs/ecow/0.2.6/ecow/string/struct.EcoString.html)
which affords O(1) clones and 15 bytes of inline storage and
`mem::size_of::<EcoString>() == 16`.
The second commit does the same for `ReducerName`. This is also used in
reducer execution.
Together, these commits increase TPS by around 5-7k TPS.
# API and ABI breaking changes
None
# Expected complexity level and risk
1
# Testing
Covered by existing tests.
# Description of Changes
Fixes a subscription plan caching bug related to client-specific views.
Before this fix, you could define a client-specific view:
```rust
fn my_view(ctx: &ViewContext) -> Option<Player> {
ctx.db.player().identity().find(ctx.sender)
}
```
And subscribe to it as follows:
```sql
SELECT * FROM my_view
```
Note this view is implicitly parameterized by `:sender`, however when
generating a query hash for this subscription, this fact would not be
taken into account which would result in this query being cached and
reused for all callers.
After this fix, a query hash is generated for this subscription as
though it were given as:
```sql
SELECT * FROM my_view WHERE identity = :sender
```
# API and ABI breaking changes
None
**Note for CLI code owners:**
I had to touch the `subscribe` cli command file. No updates to the api.
It just needed to be updated to look for views in the module def.
# Expected complexity level and risk
1
# Testing
- [x] Added a regression smoketest
# Description of Changes
This patch does the following:
1. Expands views as part of query planning. Views are always assumed to
be materialized by the query planner, however a view's backing table may
have private columns such as the `sender` column. The query planner
needs to filter by this column in order to select the rows pertaining to
a particular caller.
2. Plumbs `AuthCtx` through the query optimizer. This is needed in order
to implement (1).
3. Adds a new operator for views to the query engine that drops a view's
private columns
# API and ABI breaking changes
None
# Expected complexity level and risk
2.5
# Testing
- [x] SQL http tests
- [ ] Subscription tests
- [ ] One off query tests
Mazdak Farrokhzad