MDEV-38891 fixed THD read access violation

.github/FUNDING.yml

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+custom: https://mariadb.org/donate/

.github/workflows/backup.yml

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+---
+name: backup
+
+on:
+  schedule:
+    - cron: "32 02 * * *"
+
+jobs:
+  backup:
+    runs-on: ubuntu-latest
+    env:
+      GH_TOKEN: ${{ secrets.GH_TOKEN }}
+      REPO: ${{ github.repository }}
+      RESTIC_PASSWORD: ${{ secrets.RESTIC_PASSWORD }}
+      RESTIC_REPOSITORY_URL: ${{ secrets.RESTIC_REPOSITORY }}
+      AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+      AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+    steps:
+      - name: Install requirements
+        run: |
+          sudo apt-get update
+          sudo apt-get -y install restic
+      - name: Trigger backup export
+        run: |
+          # needed for sanity check
+          NUMBER=$(gh api \
+            -H "Accept: application/vnd.github+json" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            repos/$REPO/pulls --jq '.[0].number')
+          TITLE=$(gh api \
+            -H "Accept: application/vnd.github+json" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            repos/$REPO/pulls --jq '.[0].title')
+          ID=$(gh api --method POST /orgs/MariaDB/migrations \
+            --raw-field "repositories[]=$REPO" \
+            --field lock_repositories=false \
+            --field exclude_git_data=true --jq '.id')
+          # define some ENV vars needed below
+          echo "LATEST_PR_NUMBER=$NUMBER" >>$GITHUB_ENV
+          echo "LATEST_PR_TITLE=$TITLE" >>$GITHUB_ENV
+          echo "EXPORT_ID=$ID" >>$GITHUB_ENV
+          echo "REPO_NAME=${{ github.event.repository.name }}" >>$GITHUB_ENV
+      - name: Wait until backup is finished
+        run: |
+          while true; do
+            STATE=$(gh api --method GET "/orgs/MariaDB/migrations/$EXPORT_ID" \
+              --jq '.state')
+            [[ $STATE == "exported" ]] && break
+            sleep 10
+          done
+      - name: Download backup
+        run: |
+          ARCHIVE_URL=$(gh api --method GET "/orgs/MariaDB/migrations/$EXPORT_ID" \
+            --jq '.archive_url')
+          curl -L -H "Accept: application/vnd.github+json" \
+            -H "Authorization: Bearer $GH_TOKEN" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            -o "archive.tgz" "$ARCHIVE_URL"
+      - name: Sanity check
+        run: |
+          # Make sure that we have the latest PR information
+          # title and corresponding number (from URL)
+          zgrep -a -B3 "$LATEST_PR_TITLE" archive.tgz |
+            grep "\"url\":" |
+            grep -q "https://github.com/$REPO/pull/$LATEST_PR_NUMBER" || {
+            echo "Latest PR not found in archive.tgz"
+            exit 1
+          }
+      - name: Save backup (restic)
+        run: |
+          export RESTIC_REPOSITORY=$RESTIC_REPOSITORY_URL/$REPO_NAME
+          # init repository if necessary
+          if ! restic cat config >/dev/null 2>&1; then
+            restic init
+          fi
+          restic backup --host gh-runner --stdin \
+            --stdin-filename archive.tgz <./archive.tgz
+          restic forget --prune --keep-within 6m
+          restic check

.github/workflows/label_recent_prs.yaml

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+name: Label recent pull requests
+
+on:
+  schedule:
+    - cron: "0 2 * * *" # 02:00 UTC daily
+  workflow_dispatch:    # allow manual runs
+
+permissions:
+  contents: read
+  pull-requests: write
+  issues: write
+
+jobs:
+  label-prs:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Auto-label PRs
+        env:
+          REPO: ${{ github.repository }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          REPO=MariaDB/server
+          set -euo pipefail
+
+          # List first 200 PRs lacking classification labels as JSON
+          gh pr list \
+            --repo "$REPO" \
+            --search 'is:pr AND -label:"External Contribution" AND -label:"MariaDB Foundation" AND -label:"MariaDB Corporation" AND -label:"Codership" AND created:>2025-11' \
+            --limit 200 \
+            -s all \
+            --json number,author \
+            --jq '.[]' |
+          while read -r pr; do
+            pr_number=$(echo "$pr" | jq -r '.number')
+            author=$(echo "$pr" | jq -r '.author.login')
+
+            echo "Evaluating PR #$pr_number by $author"
+
+            # Check if author is in the developers team
+            if gh api \
+              -H "Accept: application/vnd.github+json" \
+              "/orgs/MariaDB/teams/developers/members/$author" \
+              >/dev/null 2>&1; then
+              echo "Author is in developers team"
+              is_developer=1
+            else
+              is_developer=0
+              echo "Author is not in developers team"
+            fi
+            # Check if author is in the staff team
+            if gh api \
+              -H "Accept: application/vnd.github+json" \
+              "/orgs/MariaDB/teams/staff/members/$author" \
+              >/dev/null 2>&1; then
+              echo "Author is in staff team"
+              is_foundation=1
+            else
+              is_foundation=0
+              echo "Author is not in staff team"
+            fi
+
+            if [[ "$is_foundation" -ne 0 ]]; then
+              label="MariaDB Foundation"
+            else
+              if [[ "$is_developer" -ne 0 ]]; then
+                label="MariaDB Corporation"
+              else
+                label="External Contribution"
+              fi
+            fi
+
+            echo "Applying label [$label] to PR#[$pr_number] by [$author]"
+
+            gh issue edit "$pr_number" \
+              --repo "$REPO" \
+              --add-label "$label"
+          done

.github/workflows/windows-arm64.yml

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+name: Build on Windows ARM64
+
+on:
+  push:
+    branches:
+      - 'main'
+      - 'bb-*'
+      - '[0-9]+.[0-9]+'
+      - '*wlad*'
+  pull_request:
+
+jobs:
+  build:
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}
+      cancel-in-progress: true
+
+    runs-on: windows-11-arm
+
+    steps:
+      - name: Configure git
+        run: |
+          # We won't be able to successfully run mtr
+          # unless we configure autocrlf.
+          git config --global core.autocrlf input
+
+      - uses: actions/checkout@v4
+
+      - name: Install prerequisites
+        run: |
+          # Install bison to compile
+          choco install winflexbison3
+
+      - name: Build
+        run: |
+          # speedup checkout by excluding uninteresting modules
+          git config submodule.storage/columnstore/columnstore.update none
+          git config submodule.storage/maria/libmarias3.update none
+          git config submodule.storage/rocksdb/rocksdb.update none
+          git config submodule.wsrep-lib.update none
+          mkdir bld
+          cd bld
+          cmake .. -DWITH_SSL=bundled
+          cmake --build . --config RelWithDebinfo --verbose -- -m
+
+      - name: Test MTR
+        run: |
+          $env:PATH = "C:\Strawberry\perl\bin;$env:PATH;C:\Program Files (x86)\Windows Kits\10\Debuggers\arm64"
+          #Calculate parallel as 4 * number of processors
+          $parallel = 4 * [int]$env:NUMBER_OF_PROCESSORS
+          # create case-sensitive directory to run tests in
+          $tmp = (Get-Item $env:TEMP).FullName
+          $tmp = $tmp -replace '\\','/'
+          $cidir = "$tmp/ci"
+          mkdir $cidir
+          fsutil file setCaseSensitiveInfo $cidir enable
+          perl bld\mysql-test\mysql-test-run.pl --force --parallel=$parallel --suite=main,innodb --vardir=$cidir/var --mysqld=--lower-case-table-names=0  --mysqld=--loose-innodb-flush-log-at-trx-commit=2 --mysqld=--debug-no-sync