diff --git a/system-variables.md b/system-variables.md index 8048345c154c9..c7ca2d78fb5bb 100644 --- a/system-variables.md +++ b/system-variables.md @@ -2010,13 +2010,13 @@ mysql> SELECT job_info FROM mysql.analyze_jobs ORDER BY end_time DESC LIMIT 1; > **Warning:** > -> Starting from v8.3.0, this variable is deprecated. TiDB tracks predicate columns by default. For more information, see [`tidb_analyze_column_options`](#tidb_analyze_column_options-new-in-v830). +> Starting from v8.3.0, this variable is deprecated. TiDB tracks predicate columns **by default**, and the behavior is not affected by the value of this variable. For more information, see [`tidb_analyze_column_options`](#tidb_analyze_column_options-new-in-v830). - Scope: GLOBAL - Persists to cluster: Yes - Applies to hint [SET_VAR](/optimizer-hints.md#set_varvar_namevar_value): No - Type: Boolean -- Default value: `OFF` +- Default value: `ON`. Before v8.x.0, the default value is `OFF`. - This variable controls whether to enable TiDB to collect `PREDICATE COLUMNS`. After enabling the collection, if you disable it, the information of previously collected `PREDICATE COLUMNS` is cleared. For details, see [Collect statistics on some columns](/statistics.md#collect-statistics-on-some-columns). ### tidb_enable_enhanced_security