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Support aggregation function in window#9758

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ti-chi-bot[bot] merged 72 commits intopingcap:masterfrom
xzhangxian1008:wagg
Feb 14, 2025
Merged

Support aggregation function in window#9758
ti-chi-bot[bot] merged 72 commits intopingcap:masterfrom
xzhangxian1008:wagg

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@xzhangxian1008 xzhangxian1008 commented Jan 2, 2025

What problem does this PR solve?

Issue Number: close #7376

Problem Summary:

What is changed and how it works?


Check List

Tests

  • Unit test
  • Integration test
  • Manual test (add detailed scripts or steps below)
  • No code

Side effects

  • Performance regression: Consumes more CPU
  • Performance regression: Consumes more Memory
  • Breaking backward compatibility

Documentation

  • Affects user behaviors
  • Contains syntax changes
  • Contains variable changes
  • Contains experimental features
  • Changes MySQL compatibility

Release note

Support aggregation function in window function in for TiFlash

fmt::format("Cannot allocate memory (posix_memalign), size: {}, alignment: {}.", size, alignment),
ErrorCodes::CANNOT_ALLOCATE_MEMORY,
res);
assert(buf == nullptr);
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delete if in L41? check: https://en.cppreference.com/w/cpp/memory/c/free

done

{
// Initialize window function workspaces.
workspaces.reserve(window_description.window_functions_descriptions.size());
auto workspace_num = window_description.window_functions_descriptions.size();
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Suggested change
auto workspace_num = window_description.window_functions_descriptions.size();
const auto workspace_num = window_description.window_functions_descriptions.size();

for (auto & ws : aggregation_workspaces)
{
RowNumber start = frame_start;
if (need_decrease && checkIfNeedDecrease())
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checkIfNeedDecrease() can be called before this loop

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checkIfNeedDecrease() can be called before this loop

done

append_add = true;
}

bool check_need_decrease = checkIfNeedDecrease();
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Suggested change
bool check_need_decrease = checkIfNeedDecrease();
bool check_need_decrease = false;
if constexpr(need_decrease)
check_need_decrease = checkIfNeedDecrease();

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done

for (auto & ws : aggregation_workspaces)
{
RowNumber start = frame_start;
if (need_decrease && check_need_decrease)
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Suggested change
if (need_decrease && check_need_decrease)
if (check_need_decrease)

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done

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/cc @guo-shaoge

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lgtm

@ti-chi-bot ti-chi-bot bot added needs-1-more-lgtm Indicates a PR needs 1 more LGTM. approved labels Feb 14, 2025
@ti-chi-bot ti-chi-bot bot added the lgtm label Feb 14, 2025
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ti-chi-bot bot commented Feb 14, 2025

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: guo-shaoge, windtalker

The full list of commands accepted by this bot can be found here.

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Details Needs approval from an approver in each of these files:
  • OWNERS [guo-shaoge,windtalker]

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@ti-chi-bot ti-chi-bot bot removed the needs-1-more-lgtm Indicates a PR needs 1 more LGTM. label Feb 14, 2025
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ti-chi-bot bot commented Feb 14, 2025

[LGTM Timeline notifier]

Timeline:

  • 2025-02-14 04:58:10.119539994 +0000 UTC m=+591732.515762054: ☑️ agreed by windtalker.
  • 2025-02-14 05:55:06.111459417 +0000 UTC m=+595148.507681479: ☑️ agreed by guo-shaoge.

@ti-chi-bot ti-chi-bot bot merged commit f7f2fdd into pingcap:master Feb 14, 2025
5 checks passed
@xzhangxian1008 xzhangxian1008 deleted the wagg branch February 14, 2025 06:22
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/cherrypick release-8.5-20250310-v8.5.1

ti-chi-bot pushed a commit to ti-chi-bot/tiflash that referenced this pull request Mar 11, 2025
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@xzhangxian1008: new pull request created to branch release-8.5-20250310-v8.5.1: #9980.

Details

In response to this:

/cherrypick release-8.5-20250310-v8.5.1

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

ti-chi-bot bot pushed a commit that referenced this pull request Mar 11, 2025
close #7376

Co-authored-by: xzhangxian1008 <xzhangxian@foxmail.com>
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Window functions

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