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Add SelectedRows and SelectedBytes events#12638

Merged
alexey-milovidov merged 2 commits intoClickHouse:masterfrom
ianton-ru:selected_rows_event
Jul 31, 2020
Merged

Add SelectedRows and SelectedBytes events#12638
alexey-milovidov merged 2 commits intoClickHouse:masterfrom
ianton-ru:selected_rows_event

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@ianton-ru
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I hereby agree to the terms of the CLA available at: https://yandex.ru/legal/cla/?lang=en

Changelog category (leave one):

  • Improvement

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Add SelectedRows and SelectedBytes events

Detailed description / Documentation draft:

New profiling events for system.events and system.query_log tables

  • SelectedRows - Number of rows SELECTed from all tables.
  • SelectedBytes - Number of bytes SELECTed from all tables.

@robot-clickhouse robot-clickhouse added the pr-improvement Pull request with some product improvements label Jul 21, 2020
@abyss7 abyss7 self-assigned this Jul 21, 2020
@alesapin
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Thread sanitizer failure is not related to changes. Restarted test.

@alexey-milovidov alexey-milovidov self-assigned this Jul 31, 2020
@alexey-milovidov alexey-milovidov merged commit 065db05 into ClickHouse:master Jul 31, 2020
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5 participants