revert fill doc change

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wangjiaming0909 2024-08-05 14:00:46 +08:00
parent be08fd9eb0
commit 28e3c70ad9
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@ -102,7 +102,6 @@ The detailed beaviors of `NULL`, `NULL_F`, `VALUE`, and VALUE_F are described be
1. A huge volume of interpolation output may be returned using `FILL`, so it's recommended to specify the time range when using `FILL`. The maximum number of interpolation values that can be returned in a single query is 10,000,000. 1. A huge volume of interpolation output may be returned using `FILL`, so it's recommended to specify the time range when using `FILL`. The maximum number of interpolation values that can be returned in a single query is 10,000,000.
2. The result set is in ascending order of timestamp when you aggregate by time window. 2. The result set is in ascending order of timestamp when you aggregate by time window.
3. If aggregate by window is used on STable, the aggregate function is performed on all the rows matching the filter conditions. If `PARTITION BY` is not used in the query, the result set will be returned in strict ascending order of timestamp; otherwise the result set will be returned in the order of ascending timestamp in each group. 3. If aggregate by window is used on STable, the aggregate function is performed on all the rows matching the filter conditions. If `PARTITION BY` is not used in the query, the result set will be returned in strict ascending order of timestamp; otherwise the result set will be returned in the order of ascending timestamp in each group.
4. The output windows of Fill are related with time range of WHERE Clause. For asc fill, the first output window is the first window that conains the start time of WHERE clause. The last output window is the last window that contains the end time of WHERE clause.
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@ -97,7 +97,6 @@ NULL, NULL_F, VALUE, VALUE_F 这几种填充模式针对不同场景区别如下
1. 使用 FILL 语句的时候可能生成大量的填充输出,务必指定查询的时间区间。针对每次查询,系统可返回不超过 1 千万条具有插值的结果。 1. 使用 FILL 语句的时候可能生成大量的填充输出,务必指定查询的时间区间。针对每次查询,系统可返回不超过 1 千万条具有插值的结果。
2. 在时间维度聚合中,返回的结果中时间序列严格单调递增。 2. 在时间维度聚合中,返回的结果中时间序列严格单调递增。
3. 如果查询对象是超级表,则聚合函数会作用于该超级表下满足值过滤条件的所有表的数据。如果查询中没有使用 PARTITION BY 语句,则返回的结果按照时间序列严格单调递增;如果查询中使用了 PARTITION BY 语句分组,则返回结果中每个 PARTITION 内按照时间序列严格单调递增。 3. 如果查询对象是超级表,则聚合函数会作用于该超级表下满足值过滤条件的所有表的数据。如果查询中没有使用 PARTITION BY 语句,则返回的结果按照时间序列严格单调递增;如果查询中使用了 PARTITION BY 语句分组,则返回结果中每个 PARTITION 内按照时间序列严格单调递增。
4. Fill输出的起始和结束窗口与WHERE条件的时间范围有关, 如增序Fill时, 第一个窗口是包含WHERE条件开始时间的第一个窗口, 最后一个窗口是包含WHERE条件结束时间的最后一个窗口。
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