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Update 14-stream.md

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docs/en/12-taos-sql/14-stream.md
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@ -57,6 +57,12 @@ For example, the following SQL statement creates a stream and automatically crea
```sql ```sql
CREATE STREAM avg_vol_s INTO avg_vol AS CREATE STREAM avg_vol_s INTO avg_vol AS
SELECT _wstart, count(*), avg(voltage) FROM meters PARTITION BY tbname INTERVAL(1m) SLIDING(30s); SELECT _wstart, count(*), avg(voltage) FROM meters PARTITION BY tbname INTERVAL(1m) SLIDING(30s);
CREATE STREAM streams0 INTO streamt0 AS
SELECT _wstart, count(*), avg(voltage) from meters PARTITION BY tbname EVENT_WINDOW START WITH voltage < 0 END WITH voltage > 9;
CREATE STREAM streams1 IGNORE EXPIRED 1 WATERMARK 100s INTO streamt1 AS
SELECT _wstart, count(*), avg(voltage) from meters PARTITION BY tbname COUNT_WINDOW(10);
``` ```
## Partitions of Stream ## Partitions of Stream