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Improve functions

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This commit is contained in:
Alex Kotov 2023-01-25 20:10:19 +04:00
parent f9448ab188
commit ac06d83542
Signed by: kotovalexarian
GPG key ID: 553C0EBBEB5D5F08
1 changed files with 12 additions and 4 deletions
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20230125142000_functions.up.sql
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@ -1,13 +1,21 @@
BEGIN;
CREATE FUNCTION is_name(value TEXT) RETURNS BOOLEAN LANGUAGE plpgsql
CREATE FUNCTION is_name(value TEXT)
RETURNS BOOLEAN
IMMUTABLE
PARALLEL SAFE
LANGUAGE plpgsql
AS $$BEGIN
RETURN value = btrim(value) AND length(value) > 0;
RETURN value IS NOT NULL AND value = btrim(value) AND length(value) > 0;
END$$;
CREATE FUNCTION is_language_code(value VARCHAR) RETURNS BOOLEAN LANGUAGE plpgsql
CREATE FUNCTION is_language_code(value VARCHAR)
RETURNS BOOLEAN
IMMUTABLE
PARALLEL SAFE
LANGUAGE plpgsql
AS $$BEGIN
RETURN value ~ '^[a-z]{2}$';
RETURN value IS NOT NULL AND value ~ '^[a-z]{2}$';
END$$;
COMMIT;