diff options
Diffstat (limited to 'src/mongo/db/query/sbe_stage_builder_filter.cpp')
| -rw-r--r-- | src/mongo/db/query/sbe_stage_builder_filter.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/mongo/db/query/sbe_stage_builder_filter.cpp b/src/mongo/db/query/sbe_stage_builder_filter.cpp index 0cdccc4323a..cedb52a3f5b 100644 --- a/src/mongo/db/query/sbe_stage_builder_filter.cpp +++ b/src/mongo/db/query/sbe_stage_builder_filter.cpp @@ -80,6 +80,7 @@ namespace mongo::stage_builder { namespace { struct MatchExpressionVisitorContext; +const size_t kMaxChildrenForTopLevelAndOptimization = 25; /** * Output of the tree can come from two places: @@ -131,7 +132,8 @@ struct MatchExpressionVisitorContext { // If the root node is an $and, store it in 'topLevelAnd'. // TODO: SERVER-50673: Revisit how we implement the top-level $and optimization. - if (root->matchType() == MatchExpression::AND) { + if (root->matchType() == MatchExpression::AND && + root->numChildren() <= kMaxChildrenForTopLevelAndOptimization) { topLevelAnd = root; } } @@ -165,7 +167,8 @@ struct MatchExpressionVisitorContext { // If the root node is an $and, store it in 'topLevelAnd'. // TODO: SERVER-50673: Revisit how we implement the top-level $and optimization. - if (root->matchType() == MatchExpression::AND) { + if (root->matchType() == MatchExpression::AND && + root->numChildren() <= kMaxChildrenForTopLevelAndOptimization) { topLevelAnd = root; } } |