HappenLee commented on code in PR #32333:
URL: https://github.com/apache/doris/pull/32333#discussion_r1528042121
##########
be/src/vec/functions/like.cpp:
##########
@@ -60,6 +60,129 @@ static const re2::RE2
LIKE_STARTS_WITH_RE(R"((((\\%)|(\\_)|([^%_\\]))+)(?:%+))")
static const re2::RE2 LIKE_EQUALS_RE("(((\\\\_)|([^%_]))+)");
static const re2::RE2 LIKE_ALLPASS_RE("%+");
+struct VectorAllpassSearchState : public VectorPatternSearchState {
+ VectorAllpassSearchState() :
VectorPatternSearchState(FunctionLikeBase::vector_allpass_fn) {}
+
+ ~VectorAllpassSearchState() override = default;
+
+ void like_pattern_match(const std::string& pattern_str) override {
+ if (!pattern_str.empty() && RE2::FullMatch(pattern_str,
LIKE_ALLPASS_RE)) {
+ _search_strings->insert_default();
+ } else {
+ _pattern_matched = false;
+ }
+ }
+
+ void regexp_pattern_match(const std::string& pattern_str) override {
+ if (RE2::FullMatch(pattern_str, ALLPASS_RE)) {
+ _search_strings->insert_default();
+ } else {
+ _pattern_matched = false;
+ }
+ }
+};
+
+struct VectorEqualSearchState : public VectorPatternSearchState {
+ VectorEqualSearchState() :
VectorPatternSearchState(FunctionLikeBase::vector_equals_fn) {}
+
+ ~VectorEqualSearchState() override = default;
+
+ void like_pattern_match(const std::string& pattern_str) override {
+ std::string search_string;
+ if (pattern_str.empty() || RE2::FullMatch(pattern_str, LIKE_EQUALS_RE,
&search_string)) {
+ FunctionLike::remove_escape_character(&search_string);
+ _search_strings->insert_data(search_string.c_str(),
search_string.size());
+ } else {
+ _pattern_matched = false;
+ }
+ }
+
+ void regexp_pattern_match(const std::string& pattern_str) override {
+ std::string search_string;
+ if (RE2::FullMatch(pattern_str, EQUALS_RE, &search_string)) {
+ _search_strings->insert_data(search_string.c_str(),
search_string.size());
+ } else {
+ _pattern_matched = false;
+ }
+ }
+};
+
+struct VectorSubStringSearchState : public VectorPatternSearchState {
+ VectorSubStringSearchState()
+ : VectorPatternSearchState(FunctionLikeBase::vector_substring_fn)
{}
+
+ ~VectorSubStringSearchState() override = default;
+
+ void like_pattern_match(const std::string& pattern_str) override {
+ std::string search_string;
+ if (RE2::FullMatch(pattern_str, LIKE_SUBSTRING_RE, &search_string)) {
+ FunctionLike::remove_escape_character(&search_string);
+ _search_strings->insert_data(search_string.c_str(),
search_string.size());
+ } else {
+ _pattern_matched = false;
+ }
+ }
+
+ void regexp_pattern_match(const std::string& pattern_str) override {
+ std::string search_string;
+ if (RE2::FullMatch(pattern_str, SUBSTRING_RE, &search_string)) {
+ _search_strings->insert_data(search_string.c_str(),
search_string.size());
+ } else {
+ _pattern_matched = false;
+ }
+ }
+};
+
+struct VectorStartsWithSearchState : public VectorPatternSearchState {
+ VectorStartsWithSearchState()
+ :
VectorPatternSearchState(FunctionLikeBase::vector_starts_with_fn) {}
+ ~VectorStartsWithSearchState() override = default;
+
+ void like_pattern_match(const std::string& pattern_str) override {
+ std::string search_string;
+ if (RE2::FullMatch(pattern_str, LIKE_STARTS_WITH_RE, &search_string)) {
+ FunctionLike::remove_escape_character(&search_string);
+ _search_strings->insert_data(search_string.c_str(),
search_string.size());
+ } else {
+ _pattern_matched = false;
+ }
+ }
+
+ void regexp_pattern_match(const std::string& pattern_str) override {
+ std::string search_string;
+ if (RE2::FullMatch(pattern_str, STARTS_WITH_RE, &search_string)) {
+ _search_strings->insert_data(search_string.c_str(),
search_string.size());
+ } else {
+ _pattern_matched = false;
+ }
+ }
+};
+
+struct VectorEndsWithSearchState : public VectorPatternSearchState {
+ VectorEndsWithSearchState() :
VectorPatternSearchState(FunctionLikeBase::vector_ends_with_fn) {}
+
+ ~VectorEndsWithSearchState() override = default;
+
+ void like_pattern_match(const std::string& pattern_str) override {
+ std::string search_string;
Review Comment:
reuse the string val
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