[improvement](memory) improve inserting sparse rows into string column

[jacktengg]

and remove prefetch when insert data into columns, because it's effect is not stable in production env.

Proposed changes

Issue Number: close #xxx

For the following test, which simulate hash join outputing 435699854 rows from 5131 buiding rows:

    {
        auto col = doris::vectorized::ColumnString::create();
        constexpr int build_rows = 5131;
        constexpr int output_rows = 435699854;
        std::string str("01234567");
        for (int i = 0; i < build_rows; ++i) {
            col->insert_data(str.data(), str.size());
        }
        int indices[output_rows];
        for (int i = 0; i < output_rows; ++i) {
            indices[i] = i % build_rows;
        }
        auto col2 = doris::vectorized::ColumnString::create();
        doris::MonotonicStopWatch watch;
        watch.start();
        col2->insert_indices_from(*col, indices, indices + output_rows);
        watch.stop();
        LOG(WARNING) << "string column insert_indices_from, rows: " << output_rows << ", time: " << doris::PrettyPrinter::print(watch.elapsed_time(), doris::TUnit::TIME_NS);
    }

The ColumnString::insert_indices_from inserting time improve from 6s665ms to 3s158ms:

W0702 23:08:39.672044 1277989 doris_main.cpp:545] string column insert_indices_from, rows: 435699854, time: 3s153ms
W0702 23:09:36.368853 1282061 doris_main.cpp:545] string column insert_indices_from, rows: 435699854, time: 3s158ms


W0703 00:30:26.093307 1468640 doris_main.cpp:545] string column insert_indices_from, rows: 435699854, time: 6s761ms
W0703 00:31:21.043638 1472937 doris_main.cpp:545] string column insert_indices_from, rows: 435699854, time: 6s665ms

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[yiguolei]

run buildall

[Gabriel39]

LGTM

[github-actions]

PR approved by at least one committer and no changes requested.

[github-actions]

PR approved by anyone and no changes requested.

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[mrhhsg]

LGTM

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[jacktengg]

run buildall

[jacktengg]

run p0

[jacktengg]

run buildall

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[yiguolei]

LGTM

[github-actions]

PR approved by at least one committer and no changes requested.