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Update 12-distinguished.md

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docs/en/14-reference/03-taos-sql/12-distinguished.md
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@ -177,7 +177,7 @@ TDengine also supports using CASE expressions in state quantities, which can exp
SELECT tbname, _wstart, CASE WHEN voltage >= 205 and voltage <= 235 THEN 1 ELSE 0 END status FROM meters PARTITION BY tbname STATE_WINDOW(CASE WHEN voltage >= 205 and voltage <= 235 THEN 1 ELSE 0 END);
```
The status window supports using the TRUE_FOR parameter to set its minimum duration. If the window's duration is less than the specified value, it will be discarded automatically and no result will be returned. For example, setting the minimum duration to 3 seconds:
The state window supports using the TRUE_FOR parameter to set its minimum duration. If the window's duration is less than the specified value, it will be discarded automatically and no result will be returned. For example, setting the minimum duration to 3 seconds:
```
SELECT COUNT(*), FIRST(ts), status FROM temp_tb_1 STATE_WINDOW(status) TRUE_FOR (3s);