BUG #16753: 'expected 2-element int8 array' error while getting data using query with subquery

From: PG Bug reporting form <noreply(at)postgresql(dot)org>
To: pgsql-bugs(at)lists(dot)postgresql(dot)org
Cc: anjithapaul(at)gmail(dot)com
Subject: BUG #16753: 'expected 2-element int8 array' error while getting data using query with subquery
Date: 2020-11-30 18:17:59
Message-ID: 16753-0e156a5fd6cee2d3@postgresql.org
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-bugs

The following bug has been logged on the website:

Bug reference: 16753
Logged by: Anjitha Paulose
Email address: anjithapaul(at)gmail(dot)com
PostgreSQL version: 12.5
Operating system: Windows, Linux
Description:

I am using timescale db on top of postgres db.
I am having table with mac_address and uptime. Mac address will be given
with colon or without colon. I am having the following data

mac_address | timestamp | uptime
-------------------+-----------------------------+----------
AA:BB:45:TT:CC:34 | 2020-11-30 00:00:04 | 0
112233445566 | 2020-11-30 00:00:06 | 0
NN:CC:33:33:22:22 | 2020-11-30 00:00:05 | 0
AA:BB:45:TT:CC:34 | 2020-11-30 00:30:04 | 1
112233445566 | 2020-11-30 00:30:06 | 1
NN:CC:33:33:22:22 | 2020-11-30 00:30:05 | 1

I have created an hourly continous agggregate view to get average uptime in
each hour using below query

CREATE VIEW aggregated_data
WITH (timescaledb.continuous) AS
SELECT
time_bucket(INTERVAL '1 hour', timestamp) AS time_bucket,
mac_address,
AVG(uptime) AS avg_uptime
FROM data_table
GROUP BY time_bucket, mac_address
When I am trying to get data from aggregated_data table using below query, I
am getting error 'expected 2-element int8 array'

SELECT mac_address, time_bucket,
avg_uptime, count(*) over() as count
FROM aggregated_data
WHERE time_bucket >= '2020-10-28 18:00:00' and time_bucket < '2020-11-30
08:31:52'
AND mac_address IN (
SELECT mac_address
FROM aggregated_data
WHERE time_bucket >= '2020-11-28 18:00:00' and time_bucket <
'2020-11-30 08:31:52'
GROUP BY mac_address
HAVING AVG(avg_uptime) > 0 AND AVG(avg_uptime) <=10
)
ORDER BY time_bucket LIMIT 10 OFFSET 0

Responses

Browse pgsql-bugs by date

  From Date Subject
Next Message Tom Lane 2020-11-30 20:29:03 Re: BUG #16753: 'expected 2-element int8 array' error while getting data using query with subquery
Previous Message David G. Johnston 2020-11-30 15:32:35 Re: Update on