[chore](minor) Remove some useless file and refactor a illogical name…

… of Column interface (apache#44214)

### What problem does this PR solve?

Issue Number: close #xxx

Related PR: #xxx

Problem Summary:

1. `insert_many_data` -> `insert_data_repeatly`
2. remove installation of docs build
3. remove a weird useless regression realData file(may carried up by
mistake before）

be/src/olap/rowset/segment_v2/column_reader.cpp

@@ -411,7 +411,7 @@ Status ColumnReader::next_batch_of_zone_map(size_t* n, vectorized::MutableColumn
     } else {
         if (is_string) {
             auto sv = (StringRef*)min_value->cell_ptr();
-            dst->insert_many_data(sv->data, sv->size, size);
+            dst->insert_data_repeatedly(sv->data, sv->size, size);
         } else {
             // TODO: the work may cause performance problem, opt latter
             for (int i = 0; i < size; ++i) {
@@ -1508,7 +1508,7 @@ void DefaultValueColumnIterator::insert_default_data(const TypeInfo* type_info,
         value.cast_to_date();
 
         int64 = binary_cast<VecDateTimeValue, vectorized::Int64>(value);
-        dst->insert_many_data(data_ptr, data_len, n);
+        dst->insert_data_repeatedly(data_ptr, data_len, n);
         break;
     }
     case FieldType::OLAP_FIELD_TYPE_DATETIME: {
@@ -1526,7 +1526,7 @@ void DefaultValueColumnIterator::insert_default_data(const TypeInfo* type_info,
         value.to_datetime();
 
         int64 = binary_cast<VecDateTimeValue, vectorized::Int64>(value);
-        dst->insert_many_data(data_ptr, data_len, n);
+        dst->insert_data_repeatedly(data_ptr, data_len, n);
         break;
     }
     case FieldType::OLAP_FIELD_TYPE_DECIMAL: {
@@ -1538,7 +1538,7 @@ void DefaultValueColumnIterator::insert_default_data(const TypeInfo* type_info,
                sizeof(FieldTypeTraits<FieldType::OLAP_FIELD_TYPE_DECIMAL>::CppType)); //decimal12_t
         decimal12_t* d = (decimal12_t*)mem_value;
         int128 = DecimalV2Value(d->integer, d->fraction).value();
-        dst->insert_many_data(data_ptr, data_len, n);
+        dst->insert_data_repeatedly(data_ptr, data_len, n);
         break;
     }
     case FieldType::OLAP_FIELD_TYPE_STRING:
@@ -1548,7 +1548,7 @@ void DefaultValueColumnIterator::insert_default_data(const TypeInfo* type_info,
     case FieldType::OLAP_FIELD_TYPE_AGG_STATE: {
         char* data_ptr = ((Slice*)mem_value)->data;
         size_t data_len = ((Slice*)mem_value)->size;
-        dst->insert_many_data(data_ptr, data_len, n);
+        dst->insert_data_repeatedly(data_ptr, data_len, n);
         break;
     }
     case FieldType::OLAP_FIELD_TYPE_ARRAY: {
@@ -1566,7 +1566,7 @@ void DefaultValueColumnIterator::insert_default_data(const TypeInfo* type_info,
     default: {
         char* data_ptr = (char*)mem_value;
         size_t data_len = type_size;
-        dst->insert_many_data(data_ptr, data_len, n);
+        dst->insert_data_repeatedly(data_ptr, data_len, n);
     }
     }
 }

be/src/vec/columns/column.h

@@ -290,7 +290,7 @@ class IColumn : public COW<IColumn> {
                                "Method insert_many_raw_data is not supported for " + get_name());
     }
 
-    void insert_many_data(const char* pos, size_t length, size_t data_num) {
+    void insert_data_repeatedly(const char* pos, size_t length, size_t data_num) {
         for (size_t i = 0; i < data_num; ++i) {
             insert_data(pos, length);
         }

be/src/vec/exprs/table_function/vexplode_json_array.h

@@ -193,8 +193,8 @@ struct ParsedDataStringBase : public ParsedData<std::string> {
     void insert_many_same_value_from_parsed_data(MutableColumnPtr& column, int64_t cur_offset,
                                                  int length) override {
         assert_cast<ColumnString*>(column.get())
-                ->insert_many_data(_data_string_ref[cur_offset].data,
-                                   _data_string_ref[cur_offset].size, length);
+                ->insert_data_repeatedly(_data_string_ref[cur_offset].data,
+                                         _data_string_ref[cur_offset].size, length);
     }
 
     void reset() override {

be/src/vec/exprs/table_function/vexplode_split.cpp

@@ -130,7 +130,8 @@ void VExplodeSplitTableFunction::get_same_many_values(MutableColumnPtr& column,
     if (current_empty()) {
         column->insert_many_defaults(length);
     } else {
-        column->insert_many_data(_backup[_cur_offset].data, _backup[_cur_offset].size, length);
+        column->insert_data_repeatedly(_backup[_cur_offset].data, _backup[_cur_offset].size,
+                                       length);
     }
 }
 

be/src/vec/functions/function_string.h

@@ -1235,7 +1235,8 @@ class FunctionStringElt : public IFunction {
                         null_map = ColumnUInt8::create(input_rows_count, is_null);
                         res->insert_many_defaults(input_rows_count);
                     } else {
-                        res->insert_many_data(target_data.data, target_data.size, input_rows_count);
+                        res->insert_data_repeatedly(target_data.data, target_data.size,
+                                                    input_rows_count);
                     }
                 } else if (auto target_nullable_column =
                                    check_and_get_column<ColumnNullable>(*target_column)) {

build.sh

@@ -506,9 +506,6 @@ fi
 
 # Assesmble FE modules
 FE_MODULES=''
-# TODO: docs are temporarily removed, so this var is always OFF
-# Fix it later
-BUILD_DOCS='OFF'
 modules=("")
 if [[ "${BUILD_FE}" -eq 1 ]]; then
     modules+=("fe-common")
@@ -648,14 +645,6 @@ if [[ "${BUILD_CLOUD}" -eq 1 ]]; then
     echo "Build cloud done"
 fi
 
-if [[ "${BUILD_DOCS}" = "ON" ]]; then
-    # Build docs, should be built before Frontend
-    echo "Build docs"
-    cd "${DORIS_HOME}/docs"
-    ./build_help_zip.sh
-    cd "${DORIS_HOME}"
-fi
-
 function build_ui() {
     NPM='npm'
     if ! ${NPM} --version; then