fastes way to retrieve segmented without using loop - Mailing list pgsql-general

From Tom Smith
Subject fastes way to retrieve segmented without using loop
Date
Msg-id CAKwSVFHtiS8oSjTJGvswX-VTakeZAQd5DJYkkktorCFCAuwYUg@mail.gmail.com
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Responses Re: fastes way to retrieve segmented without using loop
Re: fastes way to retrieve segmented without using loop
List pgsql-general
Hello:

I have a time series table,
using below sql, loop (psque code), I can get one row for each hour

for( H=1: H< 99999; H++){
   select  * from table where  t >= H and t < H+1   limit 1
}

t (time column) is indexed).

Is there a better way to use a issue a SINGLE SQL
with  an array of time start/end pair
so it will be executed once to send back result, which would be much faster
than issuing sql again and again (even with prepared statement and using sql function).

Thanks in Advance

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