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new 9d1c702b3a [improvement](function) do not use hyperscan for non-const
partterns in like function (#23495)
9d1c702b3a is described below
commit 9d1c702b3a88d0ea6623688d5d9f4272cbc2bcba
Author: Jerry Hu <mrh...@gmail.com>
AuthorDate: Fri Aug 25 20:40:23 2023 +0800
[improvement](function) do not use hyperscan for non-const partterns in
like function (#23495)
---
be/src/vec/functions/like.cpp | 29 ++++++++---------------------
1 file changed, 8 insertions(+), 21 deletions(-)
diff --git a/be/src/vec/functions/like.cpp b/be/src/vec/functions/like.cpp
index 8d56c4f2d1..1a83dc8a87 100644
--- a/be/src/vec/functions/like.cpp
+++ b/be/src/vec/functions/like.cpp
@@ -272,27 +272,14 @@ Status
FunctionLikeBase::regexp_fn_scalar(LikeSearchState* state, const StringRe
const StringRef& pattern, unsigned
char* result) {
std::string re_pattern(pattern.data, pattern.size);
- hs_database_t* database = nullptr;
- hs_scratch_t* scratch = nullptr;
- if (hs_prepare(nullptr, re_pattern.c_str(), &database, &scratch).ok()) {
// use hyperscan
- auto ret = hs_scan(database, val.data, val.size, 0, scratch,
-
doris::vectorized::LikeSearchState::hs_match_handler, (void*)result);
- if (ret != HS_SUCCESS && ret != HS_SCAN_TERMINATED) {
- return Status::RuntimeError(fmt::format("hyperscan error: {}",
ret));
- }
-
- hs_free_scratch(scratch);
- hs_free_database(database);
- } else { // fallback to re2
- RE2::Options opts;
- opts.set_never_nl(false);
- opts.set_dot_nl(true);
- re2::RE2 re(re_pattern, opts);
- if (re.ok()) {
- *result = RE2::PartialMatch(re2::StringPiece(val.data, val.size),
re);
- } else {
- return Status::RuntimeError("Invalid pattern: {}",
pattern.debug_string());
- }
+ RE2::Options opts;
+ opts.set_never_nl(false);
+ opts.set_dot_nl(true);
+ re2::RE2 re(re_pattern, opts);
+ if (re.ok()) {
+ *result = RE2::PartialMatch(re2::StringPiece(val.data, val.size), re);
+ } else {
+ return Status::RuntimeError("Invalid pattern: {}",
pattern.debug_string());
}
return Status::OK();
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