How to obtain the installation package (rpm) for the community version?
I downloaded the installation package for timesaledb: https://download.postgresql.org/pub/repos/yum/15/redhat/rhel-7.5-x86_64/timescaledb_15-2.11.0-1.rhel7.x86_64.rpm After installation, I attempted...
View ArticleWhat is the best approach to prevent autovacuum transaction wrapparound for...
Hi, we are using TimescaleDB 2.14.2 on PostgreSQL 15.6 on Red Hat 9.3 self-host on prem. I have been reading Managing Transaction Wraparound article and executing SELECT statements from article I have...
View ArticleHow to set the timescaledb.max_background_workers appropriately?
We are using TimescaleDB v2.14.2 on PostgreSQL v15.6 on Red Hat 9.3 self-hosted on prem. I am reading article Timescale Parameters You Should Know About and I am specially interested in parameter **...
View ArticleAdd compression without refresh policy
I have a continuous aggregate that I refresh manually every hour, for a specific 1 hour timeframe with some lag from the current hour. I don’t want to add a refresh policy that will interfere with...
View ArticleWhy is there no real-time aggregation of data?
Scenario: There is a water meter that collects its readings every 15 minutes and writes the data into WATER-METER1 Now it is necessary to perform downsampling on the collected data (taking the maximum...
View ArticleUpdate TS to 2.15: experimantal function migrate error
Good day to all! During update TSDB 2.14.2 to 2.15 error occurred: ERROR: tried calling catalog_get when extension isn't loaded CONTEXT: SQL statement "CALL...
View ArticleNewbie question: downsampling all tables?
All, I’m not a power user, simply using a database (currently influx1.8) for archival of smarthome data. So I’m a bit surprised that after reading about every article and forum post on timescaledb and...
View ArticleSetting password_encryption to allow md5
I am attempting to create a new user in my Timescale database to use the ‘md5’ password encryption. in RDS I was able to use a custom parameter group to allow md5, but I do not see that option in...
View ArticleEvent based user actions
I am in the process of building out an algo trading system using TimescaleDB. We have a continuous aggregate that stores the OHLCV for candles. The issue is that we want to trigger certain logic on...
View ArticleIs it possible to add unique constrain on a compressed chunks
I have a scenario where I need to add a unique constraint to an existing hypertable in TimescaleDB, which currently has compressed data. The process I am following now involves decompressing all the...
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Why is the query result not within the query period?
There is a query statement whose query period is greater than ‘2024-05-01 00:00:00’. select time_bucket('1 day'::interval, "time") as recode_time, meter_code, max(dqljlcc) from water_meter1 where...
View ArticleRetrieving the most recent record with skip scan is easy enough, but how do I...
Hello, I am using TSDB and want to get a set of most recent records. I only see good performance if I structure my query like so, and this shows that skip scan is being used when I run EXPLAIN ANALYZE...
View ArticleStandard Postgres replication
TimescaleDB states that multi-node is deprecated from 2.13 onwards. I’d like to know what exactly this means. Will the standard Postgres replication continue to work? Will it also replicate databases...
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Backup and restore without being the owner of the database
Hi, I am trying to backup/pg_dump my entire database (500GB) and when I restore it, there is no data in the timescaledb tables I read the documentation and found this : Timescale Documentation |...
View ArticleError during Minor Upgrade
Good Afternoon, I’m attempting to upgrade from TimescaleDB 2.2.1 to 2.13.1 on PostgreSQL 13.3. The goal is to upgrade TimescaleDB to 2.13.1 then Upgrade PostgreSQL (I get the same error trying to...
View ArticleTimescale_post_restore() not found?
Am trying to do a self hosted migration by following the instructions here and I’m getting the following error: ERROR: function timescaledb_post_restore() does not exist LINE 1: SELECT...
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Continuous aggregation calculation error
There is a transformer and every 15 minutes the collector automatically records its readings. Its readings are downsampled to the maximum hourly, daily, monthly, and yearly, respectively. But it has...
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How to perform linear interpolation?
There is a water meter, and the collector records the reading every hour. The data is as follows: It can be seen that there is missing data at 14:00, 15:00, 16:00, and 17:00 in the afternoon. How to...
View ArticleTable Design For Crypto Data with Continuous Aggregates
I am currently building a tool to analyze the price movements of the top 100 crypto tokens (by market cap). For now, we can assume that I have this list of 100 tokens hardcoded, and I have historical...
View ArticleContinuous Aggregation Error: CTEs, subqueries and set-returning functions...
CREATE MATERIALIZED VIEW current_aggregate_view WITH (timescaledb.continuous) AS SELECT time_bucket (INTERVAL '1 hour', time_slot) AS time_slot, ( SELECT COALESCE(JSONB_OBJECT_AGG(A, COUNT),...
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