[Tool] Add DumpOrdinalIndex and VerifyPageChecksum meta tool.

[wuxueyang96]

Why I'm doing:

What I'm doing:

Add two tools to verify a segment's ordinal index is correct. It can be used like below:

meta_tool.sh --operation=dump_ordinal_index --file=<segment file> --column_index=<index id>
meta_tool.sh --operation=verify_page_checksum --file=<segment file> --page_offset=<offset> --page_size=<size>

What type of PR is this:

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Does this PR entail a change in behavior?

• Yes, this PR will result in a change in behavior.
• No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

• Interface/UI changes: syntax, type conversion, expression evaluation, display information
• Parameter changes: default values, similar parameters but with different default values
• Policy changes: use new policy to replace old one, functionality automatically enabled
• Feature removed
• Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr needs user documentation (for new or modified features or behaviors)
  • I have added documentation for my new feature or new function
• This is a backport pr

Bugfix cherry-pick branch check:

• I have checked the version labels which the pr will be auto-backported to the target branch
  • 3.3
  • 3.2
  • 3.1
  • 3.0
  • 2.5

[starrocks-cr]

The most risky bug in this code is:
Undefined PagePointer in verify_page_checksum.
You can modify the code like this:

// Add this line at the top with other includes
#include "runtime/memory/page_pointer.h"

// Ensure that your verify_page_checksum and meta_tool_main functions are as follows
void verify_page_checksum(const std::string& file_name, const starrocks::PagePointer& page_pointer) {
    auto res = starrocks::FileSystem::Default()->new_random_access_file(file_name);
    if (!res.ok()) {
        std::cout << "open file failed: " << res.status() << std::endl;
        return;
    }
    auto input_file = std::move(res).value();

    const uint32_t page_size = page_pointer.size;
    std::unique_ptr<char[]> page(new char[page_size + starrocks::Column::APPEND_OVERFLOW_MAX_SIZE]);
    Slice page_slice(page.get(), page_size);

    input_file->read_at_fully(page_pointer.offset, page_slice.data, page_slice.size);

    uint32_t expect = starrocks::decode_fixed32_le((uint8_t*)page_slice.data + page_slice.size - 4);
    uint32_t actual = starrocks::crc32c::Value(page_slice.data, page_slice.size - 4);
    if (expect != actual) {
        std::cout << "Bad page: checksum mismatch (actual=" << actual << " vs expect=" << expect << ")";
        return;
    }
}

int meta_tool_main(int argc, char** argv) {
    // Add the below flags check before entering each condition
    if (FLAGS_operation == "dump_ordinal_index") {
        if (FLAGS_file == "") {
            std::cout << "no file flag for dump ordinal index" << std::endl;
            return -1;
        }
        if (FLAGS_column_index == -1) {
            std::cout << "no column_index flag for dump ordinal index" << std::endl;
            return -1;
        }
        dump_ordinal_index(FLAGS_file, FLAGS_column_index);
    } else if (FLAGS_operation == "verify_page_checksum") {
        if (FLAGS_file == "") {
            std::cout << "no file flag for verify page checksum" << std::endl;
            return -1;
        }
        if (FLAGS_page_offset == -1 || FLAGS_page_size == -1) {
            std::cout << "no page offset or page size flag for verify page checksum" << std::endl;
            return -1;
        }
        verify_page_checksum(FLAGS_file, {FLAGS_page_offset, FLAGS_page_size});
    } 
    // ...rest of the function
}

[github-actions]

[Java-Extensions Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

[FE Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

[BE Incremental Coverage Report]

❌ fail : 0 / 71 (00.00%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
🔵	be/src/tools/meta_tool.cpp	0	71	00.00%	[551, 552, 553, 554, 557, 559, 560, 561, 563, 564, 565, 566, 570, 571, 572, 573, 574, 575, 578, 580, 581, 582, 583, 585, 586, 587, 588, 589, 590, 591, 593, 594, 595, 596, 599, 600, 601, 602, 603, 604, 605, 606, 609, 610, 614, 615, 616, 617, 620, 621, 622, 623, 624, 625, 628, 629, 631, 632, 634, 1145, 1146, 1147, 1150, 1151, 1154, 1155, 1156, 1157, 1160, 1161, 1164]