I'm trying to aggregate data based on timestamp. Basically I'd like to create an array for each day.
So lets say I've a query like so:
SELECT date(task_start) AS started, task_start
FROM tt_records
GROUP BY started, task_start
ORDER BY started DESC;
The output is:
+------------+------------------------+
| started | task_start |
|------------+------------------------|
| 2021-08-30 | 2021-08-30 16:45:55+00 |
| 2021-08-29 | 2021-08-29 06:47:55+00 |
| 2021-08-29 | 2021-08-29 15:41:50+00 |
| 2021-08-28 | 2021-08-28 12:59:20+00 |
| 2021-08-28 | 2021-08-28 14:50:55+00 |
| 2021-08-26 | 2021-08-26 20:46:44+00 |
| 2021-08-24 | 2021-08-24 16:28:05+00 |
| 2021-08-23 | 2021-08-23 16:22:41+00 |
| 2021-08-22 | 2021-08-22 14:01:10+00 |
| 2021-08-21 | 2021-08-21 19:45:18+00 |
| 2021-08-11 | 2021-08-11 16:08:58+00 |
| 2021-07-28 | 2021-07-28 17:39:14+00 |
| 2021-07-19 | 2021-07-19 17:26:24+00 |
| 2021-07-18 | 2021-07-18 15:04:47+00 |
| 2021-06-24 | 2021-06-24 19:53:33+00 |
| 2021-06-22 | 2021-06-22 19:04:24+00 |
+------------+------------------------+
As you can see the started column has repeating dates.
What I'd like to have is:
+------------+--------------------------------------------------+
| started | task_start |
|------------+--------------------------------------------------|
| 2021-08-30 | [2021-08-30 16:45:55+00] |
| 2021-08-29 | [2021-08-29 06:47:55+00, 2021-08-29 15:41:50+00] |
| 2021-08-28 | [2021-08-28 12:59:20+00, 2021-08-28 14:50:55+00] |
| 2021-08-26 | [2021-08-26 20:46:44+00] |
| 2021-08-24 | [2021-08-24 16:28:05+00] |
| 2021-08-23 | [2021-08-23 16:22:41+00] |
| 2021-08-22 | [2021-08-22 14:01:10+00] |
| 2021-08-21 | [2021-08-21 19:45:18+00] |
| 2021-08-11 | [2021-08-11 16:08:58+00] |
| 2021-07-28 | [2021-07-28 17:39:14+00] |
| 2021-07-19 | [2021-07-19 17:26:24+00] |
| 2021-07-18 | [2021-07-18 15:04:47+00] |
| 2021-06-24 | [2021-06-24 19:53:33+00] |
| 2021-06-22 | [2021-06-22 19:04:24+00] |
+------------+--------------------------------------------------+
I need a query to achieve that. Thank you.
You can use array_agg()
SELECT date(task_start) AS started, array_agg(task_start)
FROM tt_records
GROUP BY started
ORDER BY started DESC;
If you want a JSON array, rather than a native Postgres array, use jsonb_agg() instead
Related
I am using Ubuntu Linux. I am trying to use Postgres as database. It is doing fine when I created a user:
CREATE USER username;
But when I try to create a database, it returns nothing:
CREATE DATABASE databasename;
What is happening with my Postgres?
datid | datname | pid | leader_pid | usesysid | usename | application_name | client_addr | client_hostname | client_port | backend_start | xact_start | query_start | state_change | wait_event_type | wait_event | state | backend_xid | backend_xmin | query_id | query | backend_type
-------+----------+------+------------+----------+----------+------------------+-------------+-----------------+-------------+-------------------------------+-------------------------------+-------------------------------+-------------------------------+-----------------+---------------------+--------+-------------+--------------+----------+---------------------------------+------------------------------
| | 8237 | | | | | | | | 2022-02-02 13:00:47.683187+07 | | | | Activity | AutoVacuumMain | | | | | | autovacuum launcher
| | 8239 | | 10 | postgres | | | | | 2022-02-02 13:00:47.70127+07 | | | | Activity | LogicalLauncherMain | | | | | | logical replication launcher
13726 | postgres | 8329 | | 10 | postgres | psql | | | -1 | 2022-02-02 13:08:52.250244+07 | 2022-02-02 13:09:10.651383+07 | 2022-02-02 13:09:10.651383+07 | 2022-02-02 13:09:10.651393+07 | Lock | object | active | | 740 | | CREATE DATABASE kong; | client backend
13726 | postgres | 8313 | | 10 | postgres | psql | | | -1 | 2022-02-02 13:04:57.265085+07 | 2022-02-02 13:10:40.097817+07 | 2022-02-02 13:10:40.097817+07 | 2022-02-02 13:10:40.09782+07 | | | active | | 740 | | SELECT * FROM pg_stat_activity; | client backend
| | 8235 | | | | | | | | 2022-02-02 13:00:47.664058+07 | | | | Activity | BgWriterHibernate | | | | | | background writer
| | 8234 | | | | | | | | 2022-02-02 13:00:47.654713+07 | | | | Activity | CheckpointerMain | | | | | | checkpointer
| | 8236 | | | | | | | | 2022-02-02 13:00:47.673631+07 | | | | Activity | WalWriterMain | | | | | | walwriter
(7 rows)
(END)
and for the pg_locks
locktype | database | relation | page | tuple | virtualxid | transactionid | classid | objid | objsubid | virtualtransaction | pid | mode | granted | fastpath | waitstart
------------+----------+----------+------+-------+------------+---------------+---------+-------+----------+--------------------+------+------------------+---------+----------+-------------------------------
relation | 13726 | 12290 | | | | | | | | 7/17 | 8313 | AccessShareLock | t | t |
virtualxid | | | | | 7/17 | | | | | 7/17 | 8313 | ExclusiveLock | t | t |
virtualxid | | | | | 3/15 | | | | | 3/15 | 8329 | ExclusiveLock | t | t |
virtualxid | | | | | 6/12 | | | | | 6/12 | 8335 | ExclusiveLock | t | t |
virtualxid | | | | | 5/3 | | | | | 5/3 | 8266 | ExclusiveLock | t | t |
virtualxid | | | | | 4/1 | | | | | 4/1 | 8264 | ExclusiveLock | t | t |
object | 0 | | | | | | 1262 | 1 | 0 | 6/12 | 8335 | RowExclusiveLock | f | f | 2022-02-02 13:09:30.561821+07
object | 0 | | | | | | 1262 | 1 | 0 | 3/15 | 8329 | ShareLock | f | f | 2022-02-02 13:09:10.651571+07
object | 0 | | | | | | 1262 | 1 | 0 | 4/1 | 8264 | RowExclusiveLock | t | f |
relation | 0 | 1262 | | | | | | | | 3/15 | 8329 | AccessShareLock | t | f |
object | 0 | | | | | | 1262 | 1 | 0 | 5/3 | 8266 | RowExclusiveLock | t | f |
(11 rows)
(END)
Database info
postgres=# \l
Name | Owner | Encoding | Collate | Ctype | Access privileges | Size | Tablespace | Description
-----------+----------+----------+---------+---------+-----------------------+---------+------------+--------------------------------------------
postgres | postgres | UTF8 | C.UTF-8 | C.UTF-8 | | 8529 kB | pg_default | default administrative connection database
template0 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | =c/postgres +| 8377 kB | pg_default | unmodifiable empty database
| | | | | postgres=CTc/postgres | | |
template1 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | =c/postgres +| 8529 kB | pg_default | default template for new databases
| | | | | postgres=CTc/postgres | | |
(3 rows)
postgres=# \du
List of roles
Role name | Attributes | Member of
-----------+------------------------------------------------------------+-----------
kong | | {}
postgres | Superuser, Create role, Create DB, Replication, Bypass RLS | {}
postgres=#
Using the same database name and user is not good practice. This may result in various errors.
When you call the command
CREATE DATABASE databaseName;
PostgreSql creates a database. This may take some time. After creating the database, you will receive a message:
CREATE DATABASE
postgres=#
Problem solved by reinstalling the pg to its old version (was installed 14, downgrade to 12 and it solved). Thanks to everyone here who helped me
Based on the dataset below, I'm trying to get the lastest cost based on the latest report date.
For example: When the report date=forecast date (column headers) then pick the values as on that report date which can be achived by this formula
IF [Report Date]=[Forecast Date] THEN [Forecasted Cost] END
but I also want to get the subsequent values as of the lastest report date i.e. 2/15/2019. How do I achieve this?
DESIRED OUTPUT
+------------+-----------+-----------+------------+------------+------------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+
| | 8/15/2018 | 9/15/2018 | 10/15/2018 | 11/15/2018 | 12/15/2018 | 1/15/2019 | 2/15/2019 | 3/15/2019 | 4/15/2019 | 5/15/2019 | 6/15/2019 | 7/15/2019 | 8/15/2019 |
+------------+-----------+-----------+------------+------------+------------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+
| Final Cost | 646.00 | 646.00 | 620.00 | 620.00 | 550.00 | 445.00 | 361.00 | 332.50 | 315.40 | 296.40 | 290.70 | 285.00 | 279.30 |
+------------+-----------+-----------+------------+------------+------------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+
DATASET
+------+-------------+-----------+-----------+------------+------------+------------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+
| Item | Report Date | 8/15/2018 | 9/15/2018 | 10/15/2018 | 11/15/2018 | 12/15/2018 | 1/15/2019 | 2/15/2019 | 3/15/2019 | 4/15/2019 | 5/15/2019 | 6/15/2019 | 7/15/2019 | 8/15/2019 |
+------+-------------+-----------+-----------+------------+------------+------------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+
| 4124 | 8/15/2018 | 646.00 | 646.00 | 658.00 | 658.00 | 658.00 | 658.00 | 658.00 | | | | | | |
| 4124 | 9/15/2018 | | 646 | 626 | 626 | 626 | 622 | 622 | 622 | | | | | |
| 4124 | 10/15/2018 | | | 620 | 620 | 620 | 585 | 585 | 585 | 555 | | | | |
| 4124 | 11/15/2018 | | | | 620 | 620 | 610 | 595 | 554.5 | 543.38 | 535.35 | | | |
| 4124 | 12/15/2018 | | | | | 550 | 535 | 505 | 490 | 490 | 490 | 490 | | |
| 4124 | 1/15/2019 | | | | | | 445 | 430 | 420 | 410 | 400 | 390 | 384 | |
| 4124 | 2/15/2019 | | | | | | | 361 | 332.5 | 315.4 | 296.4 | 290.7 | 285 | 279.3 |
+------+-------------+-----------+-----------+------------+------------+------------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+-----------+
First of all, you need to transpose your dataset, i.e. to have 4 columns "Item", "Report Date", "Forecast Date" and "Forecast Cost". Then you create a filter "forecast date >= report date" and show values by forecast date.
Now you will have multiple values for each forecast date. if you only want to get the latest value, then you can use table calculation window_min(date diff).
GNU Emacs 24.4.1 org-mode
Here is an org-mode table
#+TBLNAME: revenue
| / | < | | < | | < | | | | | | | | | | | |
| Product | Year_SUM | Month_SUM | Platform | Platform_SUM | adwo | AdMob | adChina | adSage | appfigures | appdriver | coco | Domob | Dianru | Limei | guohead | youmi |
| | | | | | | | | | | | | | | | | |
|---------+----------+-----------+----------+------------------+------+-------+---------+--------+------------+-----------+------+-------+--------+-------+---------+-------|
| Jan | | | iOS | #ERROR | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| | | | Android | =vsum($6..$>);NE | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 |
|---------+----------+-----------+----------+------------------+------+-------+---------+--------+------------+-----------+------+-------+--------+-------+---------+-------|
| | | | | | | | | | | | | | | | | |
#+TBLFM: $5=vsum($6..$>);NE
As you see ,the formula $5=vsum($6..$>);NE can't be calculated! Here is debug info:
Substitution history of formula
Orig: vsum($6..$>)
$xyz-> vsum($6..$>)
#r$c-> vsum($6..$>)
$1-> vsum((0)..$>)
--------^
Error: Expected `)'
But if I replace the formula with $5=vsum($6..$17) and then it works ,I can't figure out where is the problem?
I need some help ,appreciate it!
id | search_id | user_id | data | action | activitable_id | activitable_type | created_at | updated_at
-----+-----------+---------+----------+--------+----------------+------------------+----------------------------+----------------------------
213 | 1 | 2 | --- +| 1 | 69801 | Mention | 2014-09-25 23:28:55.592874 | 2014-09-25 23:28:55.592874
| | | taglist:+| | | | |
| | | - - 54 +| | | | |
| | | | | | | |
212 | 1 | 2 | --- +| 1 | 69803 | Mention | 2014-09-25 23:28:49.173146 | 2014-09-25 23:28:49.173146
| | | taglist:+| | | | |
| | | - - 73 +| | | | |
211 | 1 | 2 | --- +| 1 | 69802 | Mention | 2014-09-25 23:28:45.132325 | 2014-09-25 23:28:45.132325
| | | taglist:+| | | | |
| | | - - 73 +| | | | |
210 | 1 | 1 | --- +| 1 | 69801 | Mention | 2014-09-25 21:43:43.61208 | 2014-09-25 21:43:43.61208
| | | taglist:+| | | | |
| | | - - 73 +| | | | |
209 | 1 | 1 | --- +| 1 | 69833 | Mention | 2014-09-23 12:51:47.973599 | 2014-09-23 12:51:47.973599
| | | taglist:+| | | | |
| | | - - 54 +| | | | |
208 | 1 | 1 | --- +| 1 | 69836 | Mention | 2014-09-23 12:51:41.396198 | 2014-09-23 12:51:41.396198
| | | taglist:+| | | | |
| | | - - 54 +| | | | |
| | | | | | | |
207 | 1 | 1 | --- +| 1 | 69832 | Mention | 2014-09-23 12:51:36.552109 | 2014-09-23 12:51:36.552109
| | | taglist:+| | | | |
| | | - - 66 +| | | |
(7 rows)
I have these user_activity table. I want to group it with user_id and created_at date with one day interval. I can group it with user_id and created_at(but without one day interval)
When i do sorting on some unixtimestamp date field the total_found count shows different result . Here is my Query
SELECT * FROM CA_SAC_persons,CA_KC_persons,CA_SFC_persons,CA_SJ_persons
WHERE MATCH('#fullname("^John$" | "^Joseph$" | "^Jose$" | "^Josh$" | "^Robs$")')
ORDER BY filing_date_ts DESC LIMIT 0,1;SHOW META;
Result :
+---------------+-------------+
| Variable_name | Value |
+---------------+-------------+
| total | 1000 |
| total_found | 4813 |
| time | 0.019 |
| docs[9] | 4603 |
| hits[9] | 5312 |
+---------------+-------------+
SELECT * FROM CA_SAC_persons,CA_KC_persons,CA_SFC_persons,CA_SJ_persons
WHERE MATCH('#fullname("^John$" | "^Joseph$" | "^Jose$" | "^Josh$" | "^Robs$")')
ORDER BY filing_date_ts ASC LIMIT 0,1;SHOW META;
Result :
+---------------+-------------+
| Variable_name | Value |
+---------------+-------------+
| total | 1000 |
| total_found | 4812 |
| time | 0.019 |
| docs[9] | 4603 |
| hits[9] | 5312 |
+---------------+-------------+
Why the total_found shows 1 record less in the 2nd Query ?