[英]Speed up PostgreSQL query with timestamp OVERLAPS and “PARTITION BY”
[英]PostgreSQL query on a timestamp array
我有一个表,其中包含包含时间戳记数据的varchar数组列。 如何查询带有日期范围的表格?
像这样:
select *
from events
where any(occurrences::timestamp[]) between '2013-11-30' and '2013-12-01'
WITH tbl AS(
SELECT *, unnest(occurrences::timestamp[]) itm
FROM events
)
SELECT DISTINCT *
FROM tbl
WHERE
itm BETWEEN '2013-10-01 00:00:00 UTC'::timestamp AND '2013-11-01 00:00:00 UTC' ::timestamp
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