David,
The array stores a time series of values for consecutive days. All I need is
take an array such as ARRAY[1.1,1.2] and return to the client the following
series_start_date + (array_index-1), array_value
Based on what you are saying, the following should do it:
with pivoted_array AS(
select unnest(ARRAY[1.1,1.2])
),
indexed_array AS(
select row_number()OVER() AS element_index, unnest as element_value
from pivoted_array)
SELECT (DATE '2014-02-19' + INTERVAL '1d'*(element_index-1)) AS
series_date, element_value AS series_value
FROM indexed_array
Can you confirm that this behavior is guaranteed and documented. I could not
find it in the docs.
--
View this message in context:
http://postgresql.1045698.n5.nabble.com/How-to-unnest-an-array-with-element-indexes-tp5792770p5792774.html
Sent from the PostgreSQL - sql mailing list archive at Nabble.com.
