[Feature](json) Support json_search function in 3.0

be/src/common/config.cpp

@@ -1715,7 +1715,9 @@ bool init(const char* conf_file, bool fill_conf_map, bool must_exist, bool set_t
 
     if (config::is_cloud_mode()) {
         auto st = config::set_config("enable_file_cache", "true", true, true);
-        LOG(INFO) << "set config enable_file_cache " << "true" << " " << st;
+        LOG(INFO) << "set config enable_file_cache "
+                  << "true"
+                  << " " << st;
     }
 
     return true;

be/src/pipeline/exec/exchange_sink_operator.cpp

@@ -346,8 +346,8 @@ Status ExchangeSinkOperatorX::open(RuntimeState* state) {
     _compression_type = state->fragement_transmission_compression_type();
     if (_part_type == TPartitionType::TABLET_SINK_SHUFFLE_PARTITIONED) {
         if (_output_tuple_id == -1) {
-            RETURN_IF_ERROR(
-                    vectorized::VExpr::prepare(_tablet_sink_expr_ctxs, state, _child_x->row_desc()));
+            RETURN_IF_ERROR(vectorized::VExpr::prepare(_tablet_sink_expr_ctxs, state,
+                                                       _child_x->row_desc()));
         } else {
             auto* output_tuple_desc = state->desc_tbl().get_tuple_descriptor(_output_tuple_id);
             auto* output_row_desc = _pool->add(new RowDescriptor(output_tuple_desc, false));

be/src/util/jsonb_document.h

@@ -345,6 +345,22 @@ struct leg_info {
 
     ///type: 0 is member 1 is array
     unsigned int type;
+
+    bool to_string(std::string* str) const {
+        if (type == MEMBER_CODE) {
+            str->push_back(BEGIN_MEMBER);
+            str->append(leg_ptr, leg_len);
+            return true;
+        } else if (type == ARRAY_CODE) {
+            str->push_back(BEGIN_ARRAY);
+            std::string int_str = std::to_string(array_index);
+            str->append(int_str);
+            str->push_back(END_ARRAY);
+            return true;
+        } else {
+            return false;
+        }
+    }
 };
 
 class JsonbPath {
@@ -362,6 +378,19 @@ class JsonbPath {
         leg_vector.emplace_back(leg.release());
     }
 
+    void pop_leg_from_leg_vector() { leg_vector.pop_back(); }
+
+    bool to_string(std::string* res) const {
+        res->push_back(SCOPE);
+        for (const auto& leg : leg_vector) {
+            auto valid = leg->to_string(res);
+            if (!valid) {
+                return false;
+            }
+        }
+        return true;
+    }
+
     size_t get_leg_vector_size() { return leg_vector.size(); }
 
     leg_info* get_leg_from_leg_vector(size_t i) { return leg_vector[i].get(); }