eldenmoon commented on code in PR #32620:
URL: https://github.com/apache/doris/pull/32620#discussion_r1582151149
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be/src/vec/exprs/vcompound_pred.h:
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@@ -53,6 +53,74 @@ class VCompoundPred : public VectorizedFnCall {
const std::string& expr_name() const override { return _expr_name; }
+ // 1. when meet 'or' conjunct: a or b, if b can apply index, return all
rows, so b should not be extracted
+ // 2. when meet 'and' conjunct, function with column b can not apply
inverted index
+ // eg. a and hash(b)=1, if b can apply index, but hash(b)=1 is not
for index, so b should not be extracted
+ // but a and array_contains(b, 1), b can be applied inverted
index, which b can be extracted
+ Status eval_inverted_index(
+ VExprContext* context,
+ const std::unordered_map<ColumnId,
std::pair<vectorized::NameAndTypePair,
+
segment_v2::InvertedIndexIterator*>>&
+ colid_to_inverted_index_iter,
+ uint32_t num_rows, roaring::Roaring* bitmap) const override {
+ std::shared_ptr<roaring::Roaring> res =
std::make_shared<roaring::Roaring>();
+ if (_op == TExprOpcode::COMPOUND_OR) {
+ for (auto child : _children) {
+ std::shared_ptr<roaring::Roaring> child_roaring =
+ std::make_shared<roaring::Roaring>();
+ Status st = child->eval_inverted_index(context,
colid_to_inverted_index_iter,
+ num_rows,
child_roaring.get());
+ if (!st.ok()) {
+ bitmap->addRange(0, num_rows);
+ return st;
+ }
+ *res |= *child_roaring;
+ if (res->cardinality() == num_rows) {
+ // means inverted index filter do not reduce any rows
+ // the left expr no need to be extracted by inverted index,
+ // and cur roaring is all rows which means this inverted
index is not useful,
+ // do not need to calculate with res bitmap
+ return Status::OK();
+ }
+ }
+ *bitmap = *res;
+ } else if (_op == TExprOpcode::COMPOUND_AND) {
+ for (int i = 0; i < _children.size(); ++i) {
+ std::shared_ptr<roaring::Roaring> child_roaring =
+ std::make_shared<roaring::Roaring>();
+ Status st = _children[0]->eval_inverted_index(context,
colid_to_inverted_index_iter,
Review Comment:
why _children[0]?
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