Cpaulyz opened a new pull request, #15333:
URL: https://github.com/apache/iotdb/pull/15333
## Description
Support invoke table function without TABLE keyword.
```sql
-- recommended usage --
SELECT window_start, window_end, stock_id, avg(price) as avg
FROM session(
DATA => table_0 PARTITION BY stock_d ORDER BY time,
TIMECOL => 'time',
GAP => 2m)
GROUP BY window_start, window_end, stock_id;
-- also support to invoke with TABLE keyword to be compatible with ISO/IEC
19075-7 --
SELECT window_start, window_end, stock_id, avg(price) as avg
FROM TABLE(
session(
DATA => TABLE(table_0) PARTITION BY stock_d ORDER BY time,
TIMECOL => 'time',
GAP => 2m))
GROUP BY window_start, window_end, stock_id;
```
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