How time_bucket works with daylight savings
Hi, I’m trying to get a clearer understanding of how daylight savings time impacts the time_bucket function, as mentioned in the Timescale documentation [here]. The document states: daylight savings...
View ArticleContinuous Aggregation
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View ArticleError unpacking rpm package timescaledb-toolkit
I’ve tried many different versions of timescaledb-tookit and all fail with the following: $ yum install timescaledb-toolkit-postgresql-16 Installing : timescaledb-toolkit-postgresql-16-1.18.0-0.x86_64...
View ArticleDatabase size growing unexpectedly after an application aggregation added
I have a system that is reliably writing time series data to tables and have recently added an ‘aggregation’ that is computed in the application layer (because there is logic and data from this...
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TimescaleDB Memory Spiking and Not Released after daily backup process
Hello, anyone here have some advice for my problem? So, my TimescaleDB Master memory spiking and Not Released after daily backup process that is run every 2am in the morning. To avoid issue we have a...
View ArticleWhat is recommended wal_segment_size parameter for TimescaleDB?
I use PG v15.4 with TimescaleDB v2.16.0 self-hosted on prem. I am looking at pg_wal directory and I see individual WAL file is 16 MB in size. I am reading (free to download) book “PostgreSQL 14...
View Articlehypertable pagination
We’re inputting large volumes of time-series data into a hypertable in PostgreSQL with TimescaleDB and are experiencing slow pagination, especially as the pages increase. Currently, the primary index...
View Article= 2.13">Generalized API vs "old interface">= 2.13
Greetings! What is the “life expectancy” of the “old interface”? I have live prod systems using the number_partitions setting and I’d rather not lose it… regards, phil g 2 posts - 2 participants Read...
View ArticleStop inserting value to timescaledb after 1.5 Millions of rows
Hi all, I implemented a simple architecture based where a sensor send continuous values to the Timescaledb: Windows Server 2022 Standard (virtual server) Intel(R) Core™ i5-5250U CPU @ 1.60GHz (2...
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Compressed chunks backup
Hi I want to do a backup for a compressed chunk using: COPY (SELECT * FROM _timescaledb_internal.compress_hyper_10_931_chunk) TO ‘/usr/proyectos/test.csv’ WITH (FORMAT CSV, HEADER); My question is…...
View ArticleCannot download sample tutorial dataset from link
Hi, Maybe doing something wrongly, but I wanted to get a sample “devices_small” from docs.timescale.com-content/tutorials/other-sample-datasets.md at master · timescale/docs.timescale.com-content ·...
View ArticleCustom index instead of created by default
Hi! Can I safely delete default index on timestamp column and create instead of it other index with the same desc timestamp column and additional columns? In technical words: DELETE INDEX...
View ArticleContinuous aggregate multiple joins give "Subqueries are not supported in...
Hi, I am trying to create a materialized view for a continuous aggregate where I have one hypertable I am trying to join with two normal tables. I am using Postgres 16 on RedHat Linux with Timescale...
View ArticleHypertables for non-time series data
Hello, I am new to Timescale, and after reading a few articles from the docs: indexes, unique index on hypertable. I’ve decided to clarify some unanswered questions. My main concern is the usage of...
View ArticleCreating Localized OHLC Candles with Custom Calendars in TimescaleDB
I’m working on a project that requires creating OHLC (Open, High, Low, Close) candles for various assets, including some that are specific to the Iranian market. While TimescaleDB’s MATERIALIZED VIEWS...
View ArticleImproving TimescaleDB Compression Ratios; Using Brotli Parquet to Compare
I’ve got about 435 million rows of the form: time, sensor_id, sensor_value where time is a unix timestamp rounded to one decimal point, sensor_id is an integer, and the sensor_value is a float. The...
View ArticleTimescaleDB Compression ALTER Table Returns ERROR: query returned more than...
Hi everybody, when issuing the below SQL Command to set the compression settings: ALTER TABLE ej3.history_statistics SET ( timescaledb.compress, timescaledb.compress_segmentby = ‘“Postfachname”’ );...
View ArticleBest Backup and Restore Strategy for Migrating Pg13 + TDB 2.14.0 to Pg16 +...
Hello, I am currently running a TimescaleDB database in Docker with PostgreSQL 13 and TimescaleDB 2.14.0. I plan to migrate to PostgreSQL 16 with TimescaleDB 2.14.0 (initially) and would like to know...
View ArticleHypertable data corruption and autovacuuming
Hey, We are running a EC2 Ubuntu 24.04 x86_64 instance with timescaledb-ha:pg15.8-2.16.1 and we have experienced issues, when suddenly some of the hypertable chunks go into some weird state and...
View ArticleIngesting compressed parquet files into Timescale
I understand that hypertables or chunks within them are decompressed for constraint validation whenever data is inserted into a compressed hypertable. Is it also the case that a compressed file (for...
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