envvar
Fetch the value of an environment variable
Repository
theory/pg-envvar
https://github.com/theory/pg-envvar
Source
pg-envvar-1.0.1.tar.gz
pg-envvar-1.0.1.tar.gz
Overview
| Package | Version | Category | License | Language |
|---|---|---|---|---|
pg_envvar | 1.0.1 | UTIL | PostgreSQL | C |
| ID | Extension | Bin | Lib | Load | Create | Trust | Reloc | Schema |
|---|---|---|---|---|---|---|---|---|
| 4270 | envvar | No | Yes | No | Yes | No | No | - |
| Related | session_variable gzip bzip zstd http pg_net pg_curl pgjq |
|---|
Version
| Type | Repo | Version | PG Ver | Package | Deps |
|---|---|---|---|---|---|
| EXT | PIGSTY | 1.0.1 | 1817161514 | pg_envvar | - |
| RPM | PIGSTY | 1.0.1 | 1817161514 | pg_envvar_$v | - |
| DEB | PIGSTY | 1.0.1 | 1817161514 | postgresql-$v-pg-envvar | - |
Build
You can build the RPM / DEB packages for pg_envvar using pig build:
pig build pkg pg_envvar # build RPM / DEB packages
Install
You can install pg_envvar 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:
pig install pg_envvar; # Install for current active PG version
pig ext install -y pg_envvar -v 18 # PG 18
pig ext install -y pg_envvar -v 17 # PG 17
pig ext install -y pg_envvar -v 16 # PG 16
pig ext install -y pg_envvar -v 15 # PG 15
pig ext install -y pg_envvar -v 14 # PG 14
dnf install -y pg_envvar_18 # PG 18
dnf install -y pg_envvar_17 # PG 17
dnf install -y pg_envvar_16 # PG 16
dnf install -y pg_envvar_15 # PG 15
dnf install -y pg_envvar_14 # PG 14
apt install -y postgresql-18-pg-envvar # PG 18
apt install -y postgresql-17-pg-envvar # PG 17
apt install -y postgresql-16-pg-envvar # PG 16
apt install -y postgresql-15-pg-envvar # PG 15
apt install -y postgresql-14-pg-envvar # PG 14
Create Extension:
CREATE EXTENSION envvar;
Usage
Provides a single function to read environment variables from the database server.
Function
get_env(name TEXT) RETURNS TEXT
Returns the value of the specified environment variable set on the database server, or NULL if not set.
Examples
SELECT get_env('PGTZ');
-- UTC
SELECT get_env('HOME');
-- /var/lib/postgresql
SELECT get_env('PATH');
-- /usr/local/sbin:/usr/local/bin:...
SELECT get_env('NONEXISTENT');
-- NULL
Schema Support
You can install the extension into a specific schema:
CREATE SCHEMA env;
CREATE EXTENSION envvar SCHEMA env;
SELECT env.get_env('PGTZ');
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