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Questions tagged [postgresql-9.5]

Specifically for PostgreSQL version 9.5

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Postgis KNN in Postgres 9.5

I'm trying to use the Postgis KNN functionality as described here: https://postgis.net/docs/geometry_distance_knn.html I have one table with all point geometries. The table has many samples, and in ...
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0answers
12 views

Why are the heartbeat message not getting sent? streaming replication - postgresql

I working on logical streaming replication on Postgres. My streaming client is gracefully receiving all the WAL message.. Except for the heartbeat/Primary keepalive message which is mention in the ...
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1answer
49 views

Query performance depends on parameter value

In the system I'm working with there are many type hierarchies, where each type corresponds to a table. For example f_dp_rkkbase -> f_dp_rkk -> f_dp_inputrkk. To distinguish between different ...
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15 views

Connection lockup on syntax error Postgresql 9.5 on Ubuntu 16.04 server

I have postgresql 9.5 running on my server with mostly default configuration. Whenever I'm connected to the server through localhost or 127.0.0.1 postgres fails to return the error, be it a simple ...
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22 views

max_stack_depth not changed even stack changed in limits.conf

The attempt of making changes to max_stack_depth using select set_config('max_stack_depth', '512MB', false); because of the error shown in postgresql log: DETAIL: "max_stack_depth" must not exceed ...
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1answer
10 views

Why doesn't `vacuum full` release space immediately?

On Postgres 9.5 I had a table that grew to 30GB, but it was ultimately mostly dead rows. After cleaning it up with a vacuum full, postgres reports that the table size is now around 500MB. However, I ...
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1answer
43 views

How to (a) rewrite a query that JOINs three tables and (b) make its execution more efficient

I have three tables (A, B and C) with various data regarding mining facilities in them. But only one table (C) has two columns with coordinates. My final goal is to produce a table which pulls similar ...
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43 views

Slow query with order by join table

I have a SQL with multiple join left, because some data is empty. However, I need to sort the data using a string column from a join table. I thought about creating an index for this table, but this ...
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7 views

Incrementing copy of pg_stat_all_tables

This feels like a 'how long is my piece of string?' question. I have just realised I have an unexpected table 'stats' in my 'logs' schema. This table is a copy of pg_stat_all_tables with an extra ...
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1answer
62 views

Issue with Aggregate Function

I want to insert a tuple in my leggeapprovata table, but this table takes the attributes from 4 other tables. One of these 4 tables is the votazione table, from which it takes 6 attributes. Two do not ...
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14 views

Performance issue of scheduled Java app after migration from Oracle to Postgresql 9.5

I have a strange issue, that I hope I can get some help on. I'm not too advanced in Postgresql so maybe I'm missing obvious things as well. Our company is planning to move from Oracle to Postgresql, ...
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34 views

What determine how much time the query will cost?

I'm developer a system, and the database was not made for me. In the beginning all query of the database are super fast, because i don't have any data. Along the project the database grown, but the ...
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29 views

How to run multiple sql statements in Postgres using the tool PGADMIN?

I have 170 Alter Drop Constraint statement, 120 Truncate table, 120 Insert table and 170 Alter Add Constraint. All of these should be run in one in one script as batch script and I'm using PGADMIN IV ...
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1answer
22 views

postgres query to insert data in a table from other table using combination of two common entries of thecolumns in both tables [closed]

I have 2 tables t1 & t2 both containing 3 columns a,b,c the entries in column 'a' and 'b' are same but ordered differently in t1 & t2. I want to use combination of 'a'&'b' entries of t1, ...
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4answers
149 views

Postgres LIKE query using a GiST index is just as slow as a full scan

What I have is a very simple database that stores paths, extensions and names of files from UNC shares. For testing, I inserted about 1,5 mio rows and the below query uses a GiST index as you see, but ...
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0answers
50 views

Slow PostgreSQL query - how to improve it?

[Beginners question :-) hopefully on-topic here.] In one of the customized reports of our system there is a query which is toooo slow (lasting 20+ minutes to return a result). Please help me how to ...
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1answer
148 views

How to repair corrupted PostgreSQL pg_toast error

The hard drive on my PostgreSQL 9.5 server died, but I managed to recover most of the data. I've restored the database to a solid state hard drive, and I can access most of the data. However, when I ...
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2answers
46 views

How to select blocks with sequential data and aggregate the ids

I have the following table: id(int) startDate(timestamp) endDate(timestamp) plan_id(int) planned(bool) machine(int) --------------------------------------------------------------...
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1answer
25 views

postgresql has more DB connection in staging servers than production server

We have postgresql 9.5 where we use it for an application confluence. in staging and in production both max connection is same. But we see staging uses more connection than production e.g staging has ...
2
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0answers
70 views

Does VACUUM FULL ANALYZE a partition locks the main table in postgresql?

I'm using postgresql 9.5 and partman for partitioning tables. there is this table that has 30 partitions and volume of one of them are too higher than others. so I need to full vacuum this partition ...
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1answer
21 views

Update column value divisible by 100

Hello experts I need to update next column value with divisible by 100
2
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1answer
71 views

How can it be possible that sum operation is so much faster than count?

When I make a simple benchmark test in a table that has 11.065.763 records. I get the results below: select sum(t.amount * t.exchange) from table t; Finalize Aggregate (cost=658027.39..658027.40 ...
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1answer
66 views

SQL update multiple rows in destination table with same id but different values from other table

creditNote table id invoice_id generated_at(timestamp) status 10101 111 2018-02-28 14:42:39.247 generated 23982 111 2018-03-30 11:11:11.247 ...
2
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1answer
63 views

Cannot run psql in postgresql 9.5

I am using Postgresql 9.5 on Ubuntu 16.04 LTS. I receive the below error when I type psql: a psql: could not connect to server: No such file or directory Is the server running locally and accepting ...
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1answer
75 views

Truncation vs Deletion When `session_replication_role = replica`

When I first run SET session_replication_role = DEFAULT; CREATE TABLE users ( id serial PRIMARY KEY ); CREATE TABLE posts( id serial PRIMARY KEY, user_id INTEGER REFERENCES users(id) ); ...
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0answers
14 views

After a PC freeze (Windows 7) and disk integrity check, most data from PostgreSQL table was deleted

My development server is on a PC, using 64-bit Windows 7. My PC has been randomly freezing on me lately, requiring a hard reboot (holding down power button until PC turns off) Yesterday, as I was ...
1
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1answer
38 views

Update “oldest” row

I need to update the "oldest" row in the database (for now, its limit 1, but I need to also be able to set it to n). I'm essentially doing a constant stream of "update the oldest rows and retrieve ...
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0answers
24 views

Method\Function encryption in PostgreSQL

I'm primarily MS SQL Server user. Designing a PostgreSQL database, I wanted to encrypt methods\functions. Is there any way to do this? Thanks!
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0answers
191 views

ERROR: invalid input syntax for type oid: “english”

While creating an index in Postgres I am getting an error: invalid input syntax for type oid: "english" LINE 1: ...s ON entity_attributes2 USING gist ( (to_tsvector('english',... The query ...
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1answer
53 views

Should I stop my PostgreSQL server before reboot?

Every week I do an apt-get upgrade and dist-upgrade on the server where my PostgreSQL is running. After that, I do a sudo reboot now. Should I stop the PostgreSQL service before this reboot?
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59 views

Running multiple postgres database clusters on the same server

We are currently running postgres 9.5 on rhel7 and have a one database cluster per server. I'm looking at adding multiple database clusters per host, and am wondering whether there are any ...
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0answers
18 views

Query that fetchs average values over timestamp range of time, on a certain value of another pair of fields

This is the situation, over the time our table reached around 800 millions rows. And it is going to get bigger and bigger. It is a service that collects metrics of energy (voltage, power, current, etc)...
1
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1answer
140 views

WAL files not being deleted and pg_drop_replication_slot('barman') causes [55000] ERROR: replication slots can only be used if wal_level > = archive

My database has stopped deleting WAL files and pg_xlog grows to eventually take all my disk space. I have to use pg_controldata and pg_archivecleanup to delete them manually. I'm almost certain it'...
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1answer
95 views

Is it safe to move big table to another tablespace while working with it?

I have one big bloated table (real data size approx 65 Gb, 140 Gb on disk). Vacuum does not work cause of low space on default tablespace disk. So I want to clean the database from trash by moving fat ...
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1answer
623 views

Cannot login to postgres with newly created users

I have created a number of users in postgres using createuser --interactive --password but whenever I run sudo -i -u newuser I receive the following error: sudo: unknown user: staging sudo: unable to ...
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0answers
272 views

Setup a PostgreSQL HA with synchronous replication in windows

I am fairly new to postgres ans would like recommendations for setting up HA system in windows Server machines. My current plan is to run 2 server Primary (Data center) with postgres 9.6 and same ...
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0answers
134 views

AWS RDS postrgres massive disk use, small tables

I can't figure out why our AWS postgres server has consumed all of it's space. We just had to up the storage space allocated to it, but can't find any hint from postgres that it's using that much ...
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1answer
99 views

How to swap array values in PostgreSQL.?

How to swap array values in PostgreSQL. For example i have a table that has a column whose data type is bigint[]. It has following value in it. value: {111, 222, 333} My desired output is {333, 111, ...
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1answer
45 views

Postgres - Revoke database acess from user, but allow replication acess

The DB have a replication server, i need to revoke the permission on the user "user_bi" but allow the acess of this same user on the replication server! REVOKE ALL ON ALL TABLES IN SCHEMA public FROM ...
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2answers
112 views

pg_ctl still pointing to 9.5.4 after upgrade to postgres 10 [closed]

I have updated postgres from 9.5.4 to the latest 10.4 on Ubuntu 14. But after installing postgres 10 I am seeing support@platform1:/usr/bin$ ls -lah pg_ctl lrwxrwxrwx 1 root root 34 Jun 13 08:59 ...
2
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1answer
411 views

PostgreSQL - can I use logical replication from a replica's WAL?

I would like to use logical replication. However, as PostgreSQL works now, it can eat up the whole disk and then block the database. Especially in Amazon Web Services RDS, this is a problem because ...
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0answers
13 views

Disconnect specific database from pgpool II

I'm using PostgreSQL 9.5 with pgpool II version 3.4.13 on Ubuntu 16.04.3 I want to drop a specific database so I must disconnect the database from pgpool. How can I do this without disconnecting the ...
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1answer
414 views

Parse error in pg_hba.conf [closed]

Hope this is not as stupid a question as I think it is. But I'm in a loop and unable to find a solution. I installed Postgres in centos machine. The installation worked fine (apparently). Now I have ...
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1answer
67 views

How to improve performance of query for distinct suppliers in big sales table?

I have two tables, one with store data: Table "public.store" Column | Type | Modifiers -----------+------------------------+----------- id | integer ...
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1answer
231 views

Reset password expiration date to NULL in PostgreSQL

We are cleaning out/standardising DB user/application accounts on the system that has a mix of accounts that were created using different commands at different times by different individuals. We have ...
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1answer
763 views

PostgreSQL; Update different column on condition using CASE statement

I have a table which has different types of balance and I need to deduct the balance from different columns based on availability. Here is the query (Sample) I tried to use but it didn't work update ...
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0answers
44 views

Postgresql function slow down drastically after 2nd query

Issue: After starting a psql session, I execute the following query 3 times, the first 2 times, it runs quickly (651ms); the 3rd time (and after), it slows down drastically (96,176ms). I cannot ...
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0answers
57 views

JSONB: function which sorts only JSON arrays

I've just finished SQL code which checks if particular "query" fulfils "conditions" stored in rows. If yes, id-s of that rows are returned. This is made up example. CREATE TABLE jsonb_test ( id ...
2
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2answers
187 views

Delete records if not present in subquery

I want to delete records from a table that are not found in a subquery. But it's not having the desired result. The table has multiple rows per SKU. Each price row has a valid_from and valid_to date ...
0
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1answer
28 views

Wal position to wal archive number

I want to manage the copy of archiving to remote location. For that I want to delete all the archives I copied unless they are required by the standby. So, for running pg_archivecleanup $ARCLOC $...