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refine regexp tree dictionary

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This commit is contained in:
Han Fei 2023-02-24 13:07:40 +01:00
parent 67469ad46b
commit e8527e720b
1 changed files with 13 additions and 0 deletions
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13
src/Dictionaries/RegExpTreeDictionary.cpp
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@ -99,6 +99,17 @@ struct RegExpTreeDictionary::RegexTreeNode
return searcher.Match(haystack, 0, size, re2_st::RE2::Anchor::UNANCHORED, nullptr, 0);
}
/// check if this node can cover all the attributes from the query.
bool containsAll(const std::unordered_map<String, const DictionaryAttribute &> & matching_attributes) const
{
for (const auto & [key, value] : matching_attributes)
{
if (!attributes.contains(key))
return false;
}
return true;
}
struct AttributeValue
{
Field field;
@ -498,6 +509,8 @@ std::unordered_map<String, ColumnPtr> RegExpTreeDictionary::match(
if (node_ptr->match(reinterpret_cast<const char *>(keys_data.data()) + offset, length))
{
match_result.insertNodeID(node_ptr->id);
if (node_ptr->containsAll(attributes))
break;
}
}