From 31815f4a68250ebb9f5de2801a75dafa48a13ca0 Mon Sep 17 00:00:00 2001 From: Amos Bird Date: Sat, 12 Jun 2021 21:37:26 +0800 Subject: [PATCH] Proper documentation of the setting --- src/Core/Settings.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/Core/Settings.h b/src/Core/Settings.h index 5f2536516da..a2e131dd0b8 100644 --- a/src/Core/Settings.h +++ b/src/Core/Settings.h @@ -251,7 +251,7 @@ class IColumn; M(String, metrics_perf_events_list, "", "Comma separated list of perf metrics that will be measured throughout queries' execution. Empty means all events. See PerfEventInfo in sources for the available events.", 0) \ M(Float, opentelemetry_start_trace_probability, 0., "Probability to start an OpenTelemetry trace for an incoming query.", 0) \ M(Bool, prefer_column_name_to_alias, false, "Prefer using column names instead of aliases if possible.", 0) \ - M(Bool, prefer_global_in_and_join, false, "Prefer using GLOBAL IN/JOIN if possible.", 0) \ + M(Bool, prefer_global_in_and_join, false, "If enabled, all IN/JOIN operators will be rewritten as GLOBAL IN/JOIN. It's useful when the to-be-joined tables are only available on the initiator and we need to always scatter their data on-the-fly during distributed processing with the GLOBAL keyword. It's also useful to reduce the need to access the external sources joining external tables.", 0) \ \ \ /** Limits during query execution are part of the settings. \