diff options
author | Martin Neupauer <martin.neupauer@mongodb.com> | 2020-06-11 08:07:39 +0100 |
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committer | Evergreen Agent <no-reply@evergreen.mongodb.com> | 2020-06-11 11:17:49 +0000 |
commit | e3948d4d8817579b6b03618e64e1b9e8cc2ef086 (patch) | |
tree | 649bef264a16807b269f7b645a8d2312c4442455 /src/mongo/db/pipeline/document_source_cursor.cpp | |
parent | 0af9c85d7e2ba60f592f2d7a9a35217e254e59fb (diff) | |
download | mongo-e3948d4d8817579b6b03618e64e1b9e8cc2ef086.tar.gz |
SERVER-48228 Move slot-based execution engine and supporting changes into the master branch
This is an initial commit for the slot-based execution engine (SBE) which contains:
* Implementation of the core slot-based engine.
* The SBE stage builder, which is responsible for translating a QuerySolution tree
into an SBE plan.
* Other changes necessary for integration with the find command.
Co-authored-by: Anton Korshunov <anton.korshunov@mongodb.com>
Co-authored-by: Justin Seyster <justin.seyster@mongodb.com>
Co-authored-by: David Storch <david.storch@mongodb.com>
Diffstat (limited to 'src/mongo/db/pipeline/document_source_cursor.cpp')
-rw-r--r-- | src/mongo/db/pipeline/document_source_cursor.cpp | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/mongo/db/pipeline/document_source_cursor.cpp b/src/mongo/db/pipeline/document_source_cursor.cpp index f26604ce3ca..4aa7ce75d11 100644 --- a/src/mongo/db/pipeline/document_source_cursor.cpp +++ b/src/mongo/db/pipeline/document_source_cursor.cpp @@ -135,9 +135,12 @@ void DocumentSourceCursor::loadBatch() { PlanExecutor::ExecState state; Document resultObj; - AutoGetCollectionForRead autoColl(pExpCtx->opCtx, _exec->nss()); - uassertStatusOK(repl::ReplicationCoordinator::get(pExpCtx->opCtx) - ->checkCanServeReadsFor(pExpCtx->opCtx, _exec->nss(), true)); + boost::optional<AutoGetCollectionForRead> autoColl; + if (_exec->lockPolicy() == PlanExecutor::LockPolicy::kLockExternally) { + autoColl.emplace(pExpCtx->opCtx, _exec->nss()); + uassertStatusOK(repl::ReplicationCoordinator::get(pExpCtx->opCtx) + ->checkCanServeReadsFor(pExpCtx->opCtx, _exec->nss(), true)); + } _exec->restoreState(); @@ -160,8 +163,8 @@ void DocumentSourceCursor::loadBatch() { invariant(state == PlanExecutor::IS_EOF); - // Special case for tailable cursor -- EOF doesn't preclude more results, so keep the - // PlanExecutor alive. + // Special case for tailable cursor -- EOF doesn't preclude more results, so keep + // the PlanExecutor alive. if (pExpCtx->isTailableAwaitData()) { _exec->saveState(); return; |