bool_plperl
transform between bool and plperl
Overview
| Package | Version | Category | License | Language |
|---|---|---|---|---|
plperl | 1.0 | LANG | PostgreSQL | C |
| ID | Extension | Bin | Lib | Load | Create | Trust | Reloc | Schema |
|---|---|---|---|---|---|---|---|---|
| 3260 | plperl | No | Yes | No | Yes | Yes | No | pg_catalog |
| 3261 | bool_plperl | No | Yes | No | Yes | Yes | No | - |
| 3262 | hstore_plperl | No | Yes | No | Yes | No | No | - |
| 3263 | jsonb_plperl | No | No | No | Yes | Yes | No | - |
| Related | plperl plperlu bool_plperlu plpgsql pg_tle plv8 |
|---|
Version
| PG18 | PG17 | PG16 | PG15 | PG14 |
|---|---|---|---|---|
| 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
Install
Note: This is a built-in contrib extension of PostgreSQL
CREATE EXTENSION bool_plperl;
Usage
Provides a transform for the bool type for PL/Perl. When loaded, PostgreSQL boolean values are automatically converted to Perl native boolean representations and vice versa, instead of being passed as strings.
CREATE EXTENSION bool_plperl;
CREATE FUNCTION check_flag(val boolean) RETURNS text
LANGUAGE plperl TRANSFORM FOR TYPE boolean AS $$
# val is a native Perl boolean (1 or undef), not a string
if ($_[0]) {
return "flag is set";
}
return "flag is not set";
$$;
SELECT check_flag(true); -- flag is set
SELECT check_flag(false); -- flag is not set
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