pg_upless

Detect Useless UPDATE

Overview

Package	Version	Category	License	Language
`pg_upless`	`0.0.3`	ADMIN	PostgreSQL	SQL

ID	Extension	Bin	Lib	Load	Create	Trust	Reloc	Schema
5180	`pg_upless`	No	No	No	Yes	Yes	No	-

Related	`plpgsql` `pg_qualstats` `online_advisor` `hypopg` `pg_relusage` `index_advisor` `pg_stat_plans` `pg_hint_plan` `pg_stat_statements` `pg_track_optimizer` `plan_filter`

Version

Type	Repo	Version	PG Ver	Package	Deps
EXT	PIGSTY	`0.0.3`	1817161514	`pg_upless`	`plpgsql`
RPM	PIGSTY	`0.0.3`	1817161514	`pg_upless_$v`	-
DEB	PIGSTY	`0.0.3`	1817161514	`postgresql-$v-pg-upless`	-

OS / PG	PG18	PG17	PG16	PG15	PG14
el8.x86_64	PIGSTY 0.0.3 el8.x86_64.pg18 : pg_upless_18 pg_upless_18-0.0.3-1PIGSTY.el8.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el8.x86_64.pg17 : pg_upless_17 pg_upless_17-0.0.3-1PIGSTY.el8.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el8.x86_64.pg16 : pg_upless_16 pg_upless_16-0.0.3-1PIGSTY.el8.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el8.x86_64.pg15 : pg_upless_15 pg_upless_15-0.0.3-1PIGSTY.el8.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el8.x86_64.pg14 : pg_upless_14 pg_upless_14-0.0.3-1PIGSTY.el8.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB
el8.aarch64	PIGSTY 0.0.3 el8.aarch64.pg18 : pg_upless_18 pg_upless_18-0.0.3-1PIGSTY.el8.aarch64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el8.aarch64.pg17 : pg_upless_17 pg_upless_17-0.0.3-1PIGSTY.el8.aarch64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el8.aarch64.pg16 : pg_upless_16 pg_upless_16-0.0.3-1PIGSTY.el8.aarch64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el8.aarch64.pg15 : pg_upless_15 pg_upless_15-0.0.3-1PIGSTY.el8.aarch64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el8.aarch64.pg14 : pg_upless_14 pg_upless_14-0.0.3-1PIGSTY.el8.aarch64.rpm PIGSTY · 0.0.3 · 11.6KiB
el9.x86_64	PIGSTY 0.0.3 el9.x86_64.pg18 : pg_upless_18 pg_upless_18-0.0.3-1PIGSTY.el9.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el9.x86_64.pg17 : pg_upless_17 pg_upless_17-0.0.3-1PIGSTY.el9.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el9.x86_64.pg16 : pg_upless_16 pg_upless_16-0.0.3-1PIGSTY.el9.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el9.x86_64.pg15 : pg_upless_15 pg_upless_15-0.0.3-1PIGSTY.el9.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el9.x86_64.pg14 : pg_upless_14 pg_upless_14-0.0.3-1PIGSTY.el9.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB
el9.aarch64	PIGSTY 0.0.3 el9.aarch64.pg18 : pg_upless_18 pg_upless_18-0.0.3-1PIGSTY.el9.aarch64.rpm PIGSTY · 0.0.3 · 11.5KiB	PIGSTY 0.0.3 el9.aarch64.pg17 : pg_upless_17 pg_upless_17-0.0.3-1PIGSTY.el9.aarch64.rpm PIGSTY · 0.0.3 · 11.5KiB	PIGSTY 0.0.3 el9.aarch64.pg16 : pg_upless_16 pg_upless_16-0.0.3-1PIGSTY.el9.aarch64.rpm PIGSTY · 0.0.3 · 11.5KiB	PIGSTY 0.0.3 el9.aarch64.pg15 : pg_upless_15 pg_upless_15-0.0.3-1PIGSTY.el9.aarch64.rpm PIGSTY · 0.0.3 · 11.5KiB	PIGSTY 0.0.3 el9.aarch64.pg14 : pg_upless_14 pg_upless_14-0.0.3-1PIGSTY.el9.aarch64.rpm PIGSTY · 0.0.3 · 11.5KiB
el10.x86_64	PIGSTY 0.0.3 el10.x86_64.pg18 : pg_upless_18 pg_upless_18-0.0.3-1PIGSTY.el10.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el10.x86_64.pg17 : pg_upless_17 pg_upless_17-0.0.3-1PIGSTY.el10.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el10.x86_64.pg16 : pg_upless_16 pg_upless_16-0.0.3-1PIGSTY.el10.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el10.x86_64.pg15 : pg_upless_15 pg_upless_15-0.0.3-1PIGSTY.el10.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el10.x86_64.pg14 : pg_upless_14 pg_upless_14-0.0.3-1PIGSTY.el10.x86_64.rpm PIGSTY · 0.0.3 · 11.6KiB
el10.aarch64	PIGSTY 0.0.3 el10.aarch64.pg18 : pg_upless_18 pg_upless_18-0.0.3-1PIGSTY.el10.aarch64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el10.aarch64.pg17 : pg_upless_17 pg_upless_17-0.0.3-1PIGSTY.el10.aarch64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el10.aarch64.pg16 : pg_upless_16 pg_upless_16-0.0.3-1PIGSTY.el10.aarch64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el10.aarch64.pg15 : pg_upless_15 pg_upless_15-0.0.3-1PIGSTY.el10.aarch64.rpm PIGSTY · 0.0.3 · 11.6KiB	PIGSTY 0.0.3 el10.aarch64.pg14 : pg_upless_14 pg_upless_14-0.0.3-1PIGSTY.el10.aarch64.rpm PIGSTY · 0.0.3 · 11.6KiB
d12.x86_64	PIGSTY 0.0.3 d12.x86_64.pg18 : postgresql-18-pg-upless postgresql-18-pg-upless_0.0.3-1PIGSTY~bookworm_amd64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d12.x86_64.pg17 : postgresql-17-pg-upless postgresql-17-pg-upless_0.0.3-1PIGSTY~bookworm_amd64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d12.x86_64.pg16 : postgresql-16-pg-upless postgresql-16-pg-upless_0.0.3-1PIGSTY~bookworm_amd64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d12.x86_64.pg15 : postgresql-15-pg-upless postgresql-15-pg-upless_0.0.3-1PIGSTY~bookworm_amd64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d12.x86_64.pg14 : postgresql-14-pg-upless postgresql-14-pg-upless_0.0.3-1PIGSTY~bookworm_amd64.deb PIGSTY · 0.0.3 · 5.1KiB
d12.aarch64	PIGSTY 0.0.3 d12.aarch64.pg18 : postgresql-18-pg-upless postgresql-18-pg-upless_0.0.3-1PIGSTY~bookworm_arm64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d12.aarch64.pg17 : postgresql-17-pg-upless postgresql-17-pg-upless_0.0.3-1PIGSTY~bookworm_arm64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d12.aarch64.pg16 : postgresql-16-pg-upless postgresql-16-pg-upless_0.0.3-1PIGSTY~bookworm_arm64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d12.aarch64.pg15 : postgresql-15-pg-upless postgresql-15-pg-upless_0.0.3-1PIGSTY~bookworm_arm64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d12.aarch64.pg14 : postgresql-14-pg-upless postgresql-14-pg-upless_0.0.3-1PIGSTY~bookworm_arm64.deb PIGSTY · 0.0.3 · 5.1KiB
d13.x86_64	PIGSTY 0.0.3 d13.x86_64.pg18 : postgresql-18-pg-upless postgresql-18-pg-upless_0.0.3-1PIGSTY~trixie_amd64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d13.x86_64.pg17 : postgresql-17-pg-upless postgresql-17-pg-upless_0.0.3-1PIGSTY~trixie_amd64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d13.x86_64.pg16 : postgresql-16-pg-upless postgresql-16-pg-upless_0.0.3-1PIGSTY~trixie_amd64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d13.x86_64.pg15 : postgresql-15-pg-upless postgresql-15-pg-upless_0.0.3-1PIGSTY~trixie_amd64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d13.x86_64.pg14 : postgresql-14-pg-upless postgresql-14-pg-upless_0.0.3-1PIGSTY~trixie_amd64.deb PIGSTY · 0.0.3 · 5.1KiB
d13.aarch64	PIGSTY 0.0.3 d13.aarch64.pg18 : postgresql-18-pg-upless postgresql-18-pg-upless_0.0.3-1PIGSTY~trixie_arm64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d13.aarch64.pg17 : postgresql-17-pg-upless postgresql-17-pg-upless_0.0.3-1PIGSTY~trixie_arm64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d13.aarch64.pg16 : postgresql-16-pg-upless postgresql-16-pg-upless_0.0.3-1PIGSTY~trixie_arm64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d13.aarch64.pg15 : postgresql-15-pg-upless postgresql-15-pg-upless_0.0.3-1PIGSTY~trixie_arm64.deb PIGSTY · 0.0.3 · 5.1KiB	PIGSTY 0.0.3 d13.aarch64.pg14 : postgresql-14-pg-upless postgresql-14-pg-upless_0.0.3-1PIGSTY~trixie_arm64.deb PIGSTY · 0.0.3 · 5.1KiB
u22.x86_64	PIGSTY 0.0.3 u22.x86_64.pg18 : postgresql-18-pg-upless postgresql-18-pg-upless_0.0.3-1PIGSTY~jammy_amd64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u22.x86_64.pg17 : postgresql-17-pg-upless postgresql-17-pg-upless_0.0.3-1PIGSTY~jammy_amd64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u22.x86_64.pg16 : postgresql-16-pg-upless postgresql-16-pg-upless_0.0.3-1PIGSTY~jammy_amd64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u22.x86_64.pg15 : postgresql-15-pg-upless postgresql-15-pg-upless_0.0.3-1PIGSTY~jammy_amd64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u22.x86_64.pg14 : postgresql-14-pg-upless postgresql-14-pg-upless_0.0.3-1PIGSTY~jammy_amd64.deb PIGSTY · 0.0.3 · 4.9KiB
u22.aarch64	PIGSTY 0.0.3 u22.aarch64.pg18 : postgresql-18-pg-upless postgresql-18-pg-upless_0.0.3-1PIGSTY~jammy_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u22.aarch64.pg17 : postgresql-17-pg-upless postgresql-17-pg-upless_0.0.3-1PIGSTY~jammy_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u22.aarch64.pg16 : postgresql-16-pg-upless postgresql-16-pg-upless_0.0.3-1PIGSTY~jammy_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u22.aarch64.pg15 : postgresql-15-pg-upless postgresql-15-pg-upless_0.0.3-1PIGSTY~jammy_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u22.aarch64.pg14 : postgresql-14-pg-upless postgresql-14-pg-upless_0.0.3-1PIGSTY~jammy_arm64.deb PIGSTY · 0.0.3 · 4.9KiB
u24.x86_64	PIGSTY 0.0.3 u24.x86_64.pg18 : postgresql-18-pg-upless postgresql-18-pg-upless_0.0.3-1PIGSTY~noble_amd64.deb PIGSTY · 0.0.3 · 4.8KiB	PIGSTY 0.0.3 u24.x86_64.pg17 : postgresql-17-pg-upless postgresql-17-pg-upless_0.0.3-1PIGSTY~noble_amd64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u24.x86_64.pg16 : postgresql-16-pg-upless postgresql-16-pg-upless_0.0.3-1PIGSTY~noble_amd64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u24.x86_64.pg15 : postgresql-15-pg-upless postgresql-15-pg-upless_0.0.3-1PIGSTY~noble_amd64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u24.x86_64.pg14 : postgresql-14-pg-upless postgresql-14-pg-upless_0.0.3-1PIGSTY~noble_amd64.deb PIGSTY · 0.0.3 · 4.9KiB
u24.aarch64	PIGSTY 0.0.3 u24.aarch64.pg18 : postgresql-18-pg-upless postgresql-18-pg-upless_0.0.3-1PIGSTY~noble_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u24.aarch64.pg17 : postgresql-17-pg-upless postgresql-17-pg-upless_0.0.3-1PIGSTY~noble_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u24.aarch64.pg16 : postgresql-16-pg-upless postgresql-16-pg-upless_0.0.3-1PIGSTY~noble_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u24.aarch64.pg15 : postgresql-15-pg-upless postgresql-15-pg-upless_0.0.3-1PIGSTY~noble_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u24.aarch64.pg14 : postgresql-14-pg-upless postgresql-14-pg-upless_0.0.3-1PIGSTY~noble_arm64.deb PIGSTY · 0.0.3 · 4.9KiB
u26.x86_64	PIGSTY 0.0.3 u26.x86_64.pg18 : postgresql-18-pg-upless postgresql-18-pg-upless_0.0.3-1PIGSTY~resolute_amd64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u26.x86_64.pg17 : postgresql-17-pg-upless postgresql-17-pg-upless_0.0.3-1PIGSTY~resolute_amd64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u26.x86_64.pg16 : postgresql-16-pg-upless postgresql-16-pg-upless_0.0.3-1PIGSTY~resolute_amd64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u26.x86_64.pg15 : postgresql-15-pg-upless postgresql-15-pg-upless_0.0.3-1PIGSTY~resolute_amd64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u26.x86_64.pg14 : postgresql-14-pg-upless postgresql-14-pg-upless_0.0.3-1PIGSTY~resolute_amd64.deb PIGSTY · 0.0.3 · 4.9KiB
u26.aarch64	PIGSTY 0.0.3 u26.aarch64.pg18 : postgresql-18-pg-upless postgresql-18-pg-upless_0.0.3-1PIGSTY~resolute_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u26.aarch64.pg17 : postgresql-17-pg-upless postgresql-17-pg-upless_0.0.3-1PIGSTY~resolute_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u26.aarch64.pg16 : postgresql-16-pg-upless postgresql-16-pg-upless_0.0.3-1PIGSTY~resolute_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u26.aarch64.pg15 : postgresql-15-pg-upless postgresql-15-pg-upless_0.0.3-1PIGSTY~resolute_arm64.deb PIGSTY · 0.0.3 · 4.9KiB	PIGSTY 0.0.3 u26.aarch64.pg14 : postgresql-14-pg-upless postgresql-14-pg-upless_0.0.3-1PIGSTY~resolute_arm64.deb PIGSTY · 0.0.3 · 4.9KiB

Build

You can build the RPM / DEB packages for pg_upless using pig build:

pig build pkg pg_upless         # build RPM / DEB packages

Install

You can install pg_upless directly. First, make sure the PGDG and PIGSTY repositories are added and enabled:

pig repo add pgsql -u          # Add repo and update cache

Install the extension using pig or apt/yum/dnf:

Install

pig install pg_upless;          # Install for current active PG version

pig

pig ext install -y pg_upless -v 18  # PG 18
pig ext install -y pg_upless -v 17  # PG 17
pig ext install -y pg_upless -v 16  # PG 16
pig ext install -y pg_upless -v 15  # PG 15
pig ext install -y pg_upless -v 14  # PG 14

dnf

dnf install -y pg_upless_18       # PG 18
dnf install -y pg_upless_17       # PG 17
dnf install -y pg_upless_16       # PG 16
dnf install -y pg_upless_15       # PG 15
dnf install -y pg_upless_14       # PG 14

apt

apt install -y postgresql-18-pg-upless   # PG 18
apt install -y postgresql-17-pg-upless   # PG 17
apt install -y postgresql-16-pg-upless   # PG 16
apt install -y postgresql-15-pg-upless   # PG 15
apt install -y postgresql-14-pg-upless   # PG 14

Create Extension:

CREATE EXTENSION pg_upless CASCADE;  -- requires: plpgsql

Usage

pg_upless: Detect Useless UPDATE

pg_upless detects UPDATE statements that change no actual values (common with ORMs). It works by installing triggers on monitored tables and collecting statistics. It is intended as a diagnostic tool, not for permanent use.

Start Monitoring

-- Monitor a specific table
SELECT pg_upless_start('public', 'boats');

-- Monitor all tables in a schema
SELECT pg_upless_start('public');

Stop Monitoring

-- Stop monitoring a specific table
SELECT pg_upless_stop('public', 'boats');

-- Stop monitoring all tables in a schema
SELECT pg_upless_stop('public');

View Statistics

The extension creates two tables in the pg_upless schema:

pg_upless_stats – stores counts of total vs useless updates per table
pg_upless_start_time – records when monitoring started (for rate calculations)

pg_upless

Overview

Version

Build

Install

Usage

Start Monitoring

Stop Monitoring

View Statistics

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