Bumps
[bufbuild/buf-setup-action](https://github.com/bufbuild/buf-setup-action)
from 1.41.0 to 1.42.0.

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

BREAKING CHANGE: This PR changes the definition of grouping sets in
`AggregateRel` to consist of references into a list of grouping
expressions instead of consisting of expressions directly.

With the previous definition, consumers had to deduplicate the
expressions in the grouping sets in order to execute the query or even
derive the output schema (which is problematic, as explained below).
With this change, the responsibility of deduplicating expressions is now
on the producer. Concretely, consumers are now expected to be simpler:
The list of grouping expressions immediately provides the information
needed to derive the output schema and the list of grouping sets
explicitly and unambiguously provides the equality of grouping
expressions. Producers now have to specify the grouping sets explicitly.
If their internal representation of grouping sets consists of full
grouping expressions (rather than references), then they must
deduplicate these expressions according to their internal notion of
expression equality in order to produce grouping sets consisting of
references to these deduplicated expressions.

If the previous format is desired, it can be obtained from the new
format by (1) deduplicating the grouping expressions (according to the
previously applicable definition of expression equality), (2)
re-establishing the duplicates using the emit clause, and (3)
"dereferencing" the references in the grouping sets, i.e., by replacing
each reference in the grouping sets with the expression it refers to.

The previous version was problematic because it required the *consumers*
to deduplicate the expressions from the grouping sets. This, in turn,
requires to parse and understand 100% of these expression even in cases
where that understanding is otherwise optional, which is in opposition
to the general philosophy of allowing for simple-minded consumers. The
new version avoids that problem and, thus, allows consumers to be
simpler. The issues are discussed in even more detail in #700.

---------

Signed-off-by: Ingo Müller <ingomueller@google.com>
Co-authored-by: Weston Pace <weston.pace@gmail.com>

Clarified language of existing SetRel operations to distinguish ALL and
DISTINCT behaviour. Added language around ALL versions of operations to better
specify how many versions of a record should appear in the relation output.

feat: added SET_OP_MINUS_PRIMARY_ALL
feat: added SET_OP_INTERSECTION_MULTISET_ALL

These operations corresponds to SQL:
* EXCEPT ALL
* INTERSECT ALL

This facilitates substrait assets use in go projects

Bumps
[bufbuild/buf-setup-action](https://github.com/bufbuild/buf-setup-action)
from 1.42.0 to 1.43.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/bufbuild/buf-setup-action/releases">bufbuild/buf-setup-action's
releases</a>.</em></p>
<blockquote>
<h2>v1.43.0</h2>
<p>Release v1.43.0</p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/bufbuild/buf-setup-action/commit/62ee92603c244ad0da98bab36a834a999a5329e6"><code>62ee926</code></a>
Release v1.43.0 (<a
href="https://redirect.github.com/bufbuild/buf-setup-action/issues/226">#226</a>)</li>
<li>See full diff in <a
href="https://github.com/bufbuild/buf-setup-action/compare/v1.42.0...v1.43.0">compare
view</a></li>
</ul>
</details>
<br />


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