system-variable.md: remove tmp_table_size (#6775) (#6776)

pingcap · Nov 10, 2021 · 21bad52 · 21bad52
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commit 21bad52
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diff --git a/system-variables.md b/system-variables.md
@@ -1516,13 +1516,6 @@ SET tidb_slow_log_threshold = 200;
 - Default value: ""
 - A non-empty value of this variable indicates the UNIX epoch that is used as the timestamp for `CURRENT_TIMESTAMP()`, `NOW()`, and other functions. This variable might be used in data restore or replication.
 
-### tmp_table_size
-
-- Scope: SESSION | GLOBAL
-- Default value: `16777216`
-- Unit: Bytes
-- Indicates the maximum size of a temporary table.
-
 ### transaction_isolation
 
 - Scope: SESSION | GLOBAL