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MR-771: demote Run to direct-publish via expected_table_versions CAS

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mutate_as and load now write directly to target tables and call the
publisher once at the end with per-table expected versions; the Run
state machine, _graph_runs.lance writers, __run__ staging branches,
and server /runs/* endpoints are removed. Multi-statement mutations
remain atomic at the manifest level via an in-memory MutationStaging
accumulator that gives read-your-writes within a query and a single
publish at the end. Concurrent-writer conflicts surface as
ExpectedVersionMismatch (HTTP 409 manifest_conflict) instead of the
old DivergentUpdate merge shape. Documents one known limitation in
docs/runs.md: a multi-statement mid-query failure where op-N writes
a Lance fragment and op-N+1 fails leaves Lance HEAD ahead of the
manifest until a follow-up introduces per-table Lance branches.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Ragnor Comerford 2026-04-30 08:52:50 +02:00
parent 4e5374a85e
commit 35be20cb05
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28 changed files with 1188 additions and 3216 deletions
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17
crates/omnigraph-server/src/policy.rs
View file

@ -23,8 +23,6 @@ pub enum PolicyAction {
BranchCreate,
BranchDelete,
BranchMerge,
RunPublish,
RunAbort,
Admin,
}
@ -38,8 +36,6 @@ impl PolicyAction {
Self::BranchCreate => "branch_create",
Self::BranchDelete => "branch_delete",
Self::BranchMerge => "branch_merge",
Self::RunPublish => "run_publish",
Self::RunAbort => "run_abort",
Self::Admin => "admin",
}
}
@ -51,12 +47,7 @@ impl PolicyAction {
fn uses_target_branch_scope(self) -> bool {
matches!(
self,
Self::BranchCreate
| Self::SchemaApply
| Self::BranchDelete
| Self::BranchMerge
| Self::RunPublish
| Self::RunAbort
Self::BranchCreate | Self::SchemaApply | Self::BranchDelete | Self::BranchMerge
)
}
}
@ -79,8 +70,6 @@ impl FromStr for PolicyAction {
"branch_create" => Ok(Self::BranchCreate),
"branch_delete" => Ok(Self::BranchDelete),
"branch_merge" => Ok(Self::BranchMerge),
"run_publish" => Ok(Self::RunPublish),
"run_abort" => Ok(Self::RunAbort),
"admin" => Ok(Self::Admin),
other => bail!("unknown policy action '{other}'"),
}
@ -599,8 +588,6 @@ namespace Omnigraph {
action "branch_create" appliesTo { principal: Actor, resource: Repo, context: RequestContext };
action "branch_delete" appliesTo { principal: Actor, resource: Repo, context: RequestContext };
action "branch_merge" appliesTo { principal: Actor, resource: Repo, context: RequestContext };
action "run_publish" appliesTo { principal: Actor, resource: Repo, context: RequestContext };
action "run_abort" appliesTo { principal: Actor, resource: Repo, context: RequestContext };
action "admin" appliesTo { principal: Actor, resource: Repo, context: RequestContext };
}
"#
@ -732,7 +719,7 @@ rules:
- id: admins-promote
allow:
actors: { group: admins }
actions: [branch_delete, branch_merge, run_publish]
actions: [branch_delete, branch_merge]
target_branch_scope: protected
"#,
)