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yiguolei pushed a commit to branch branch-2.1
in repository https://gitbox.apache.org/repos/asf/doris.git
The following commit(s) were added to refs/heads/branch-2.1 by this push:
new cbe8e5c010e [opt](join) For a mark join without other conjuncts, stop
probing after matching one row (#34581)
cbe8e5c010e is described below
commit cbe8e5c010e14768e5559bdef98b71216943ab80
Author: Jerry Hu <mrh...@gmail.com>
AuthorDate: Fri May 10 13:45:00 2024 +0800
[opt](join) For a mark join without other conjuncts, stop probing after
matching one row (#34581)
---
be/src/vec/common/hash_table/join_hash_table.h | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/be/src/vec/common/hash_table/join_hash_table.h
b/be/src/vec/common/hash_table/join_hash_table.h
index c83f8d17c27..10ca6c9b2dd 100644
--- a/be/src/vec/common/hash_table/join_hash_table.h
+++ b/be/src/vec/common/hash_table/join_hash_table.h
@@ -100,7 +100,12 @@ public:
if constexpr (with_other_conjuncts ||
(is_mark_join && JoinOpType !=
TJoinOp::RIGHT_SEMI_JOIN)) {
- return _find_batch_conjunct<JoinOpType, need_judge_null>(
+ constexpr bool null_aware_without_other_conjuncts =
+ (JoinOpType == TJoinOp::NULL_AWARE_LEFT_ANTI_JOIN ||
+ JoinOpType == TJoinOp::NULL_AWARE_LEFT_SEMI_JOIN) &&
+ !with_other_conjuncts;
+ return _find_batch_conjunct<JoinOpType, need_judge_null,
+ null_aware_without_other_conjuncts>(
keys, build_idx_map, probe_idx, build_idx, probe_rows,
probe_idxs, build_idxs);
}
@@ -309,7 +314,7 @@ private:
return std::tuple {probe_idx, 0U, matched_cnt};
}
- template <int JoinOpType, bool need_judge_null>
+ template <int JoinOpType, bool need_judge_null, bool
null_aware_without_other_conjuncts>
auto _find_batch_conjunct(const Key* __restrict keys, const uint32_t*
__restrict build_idx_map,
int probe_idx, uint32_t build_idx, int
probe_rows,
uint32_t* __restrict probe_idxs, uint32_t*
__restrict build_idxs) {
@@ -339,6 +344,11 @@ private:
build_idxs[matched_cnt] = build_idx;
probe_idxs[matched_cnt] = probe_idx;
matched_cnt++;
+
+ if constexpr (null_aware_without_other_conjuncts) {
+ build_idx = 0;
+ break;
+ }
}
build_idx = next[build_idx];
}
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