util/stmtsummary: add tidb_stmt_summary_group_by_user#68512

Merged

ti-chi-bot[bot] merged 7 commits into

pingcap:masterfrom

nolouch:stmt_summary_group_by_user

Jun 3, 2026

Commits on May 20, 2026

util/stmtsummary: add tidb_stmt_summary_group_by_user

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Merge remote-tracking branch 'origin/master' into stmt_summary_group_by_user
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util/stmtsummary: fix group_by_user race and reuse SAMPLE_USER

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Commits on May 21, 2026

util/stmtsummary: encode boundary between resource_group and user in digest key

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util/stmtsummary: rename test var kOff to off to satisfy revive var-naming

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Commits on May 26, 2026

util/stmtsummary: clarify user key segment comment
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Commits on May 28, 2026

util/stmtsummary: extract clear helper for stmt summary reset
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