Mascara para CPF no padrão LGPD

function_mascara_cpf_lgpd.sql

+-- drop function if exists public.mascara_cpf_lgpd(TEXT)
+CREATE OR REPLACE FUNCTION public.mascara_cpf_lgpd(in_cpf TEXT)
+RETURNS TEXT AS $$
+DECLARE
+    clean_cpf TEXT;
+    result TEXT;
+BEGIN
+
+    clean_cpf := regexp_replace(in_cpf, '[^0-9]', '', 'g');
+
+    IF char_length(clean_cpf) <> 11 THEN
+      RAISE EXCEPTION 'CPF inválido. Deve conter 11 dígitos.';
+    END IF;
+
+    result := substring(clean_cpf FROM 1 FOR 3) || '.XXX.XXX-' || substring(clean_cpf FROM 10 FOR 2);
+  
+    RETURN result;
+END;
+$$ LANGUAGE plpgsql;
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