omni_var

omnigres : Scoped variables

Overview

ID	Extension	Package	Version	Category	License	Language
2973	omni_var	omnigres	`0.3.0`	FEAT	Apache-2.0	C

Attribute	Has Binary	Has Library	Need Load	Has DDL	Relocatable	Trusted
--s-d--	No	Yes	No	Yes	no	no

Relationships
Schemas	`omni_var`
Need By	omni_kube omni_rest omni_session
Siblings	omni omni_auth omni_aws omni_cloudevents omni_containers omni_credentials omni_email omni_http omni_httpc omni_httpd omni_id omni_json omni_kube omni_ledger omni_manifest omni_mimetypes omni_os omni_polyfill omni_python omni_regex omni_rest omni_schema omni_seq omni_service omni_session omni_sql omni_sqlite omni_test omni_txn omni_types omni_vfs omni_vfs_types_v1 omni_web omni_worker omni_xml omni_yaml

Packages

Type	Repo	Version	PG Major Compatibility	Package Pattern	Dependencies
EXT	PIGSTY	`0.3.0`	18 17 16 15 14	`omnigres`	-
RPM	PIGSTY	`0.3.0`	18 17 16 15 14	`omnigres_$v`	-
DEB	PIGSTY	`0.3.0`	18 17 16 15 14	`postgresql-$v-omnigres`	-

Linux / PG	PG18	PG17	PG16	PG15	PG14
el8.x86_64	MISS	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120
el8.aarch64	MISS	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120
el9.x86_64	MISS	PIGSTY 20250507	PIGSTY 20250507	PIGSTY 20250507	PIGSTY 20250507
el9.aarch64	MISS	PIGSTY 20250507	PIGSTY 20250507	PIGSTY 20250507	PIGSTY 20250507
el10.x86_64	MISS	MISS	MISS	MISS	MISS
el10.aarch64	MISS	MISS	MISS	MISS	MISS
d12.x86_64	MISS	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120
d12.aarch64	MISS	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120
d13.x86_64	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108
d13.aarch64	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108
u22.x86_64	MISS	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120
u22.aarch64	MISS	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120	PIGSTY 20250120
u24.x86_64	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108
u24.aarch64	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108	PIGSTY 20251108

Source

Repository

docs.omnigres.org/omni_var/variables/

Source Tarball

omnigres-20251108.tar.gz

pig build pkg omnigres;		# build rpm/deb

Install

Make sure PGDG and PIGSTY repo available:

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

Install this extension with pig:

pig install omnigres;		# install via package name, for the active PG version
pig install omni_var;		# install by extension name, for the current active PG version

pig install omni_var -v 18;   # install for PG 18
pig install omni_var -v 17;   # install for PG 17
pig install omni_var -v 16;   # install for PG 16
pig install omni_var -v 15;   # install for PG 15
pig install omni_var -v 14;   # install for PG 14

Create this extension with:

CREATE EXTENSION omni_var;

Usage

omni_var: Scoped variables

The omni_var extension provides typed variables with transaction, session, and statement scopes.

Set Variables

SELECT omni_var.set('my_var', true);              -- transaction scope
SELECT omni_var.set_session('my_var', true);       -- session scope
SELECT omni_var.set_statement('my_var', true);     -- statement scope

For explicit typing:

SELECT omni_var.set('text_var', 'value'::text);

Get Variables

SELECT omni_var.get('my_var', false);              -- transaction scope, default=false
SELECT omni_var.get_session('my_var', false);       -- session scope
SELECT omni_var.get_statement('my_var', false);     -- statement scope

The default value serves dual purposes: returned when the variable is not found, and its type specifies the expected return type.

Behavior

If a variable is explicitly set to null, get returns null (not the default)
Mismatched type specifications raise errors: ERROR: type mismatch DETAIL: expected integer, got boolean
Transaction-scoped variables are bound by the enclosing transaction lifetime
Session variables persist throughout the session duration

Last updated on 2026-03-12

omni_types omni_vfs