Add new file.

contrib/pgcrypto/pgcrypto.sql

+
+-- drop function digest(bytea, text);
+-- drop function digest_exists(text);
+-- drop function hmac(bytea, bytea, text);
+-- drop function hmac_exists(text);
+-- drop function crypt(text, text);
+-- drop function gen_salt(text);
+-- drop function gen_salt(text, int4);
+-- drop function encrypt(bytea, bytea, text);
+-- drop function decrypt(bytea, bytea, text);
+-- drop function encrypt_iv(bytea, bytea, bytea, text);
+-- drop function decrypt_iv(bytea, bytea, bytea, text);
+-- drop function cipher_exists(text);
+
+
+
+CREATE FUNCTION digest(bytea, text) RETURNS bytea
+  AS '$libdir/pgcrypto',
+  'pg_digest' LANGUAGE 'C';
+
+CREATE FUNCTION digest_exists(text) RETURNS bool
+  AS '$libdir/pgcrypto',
+  'pg_digest_exists' LANGUAGE 'C';
+
+CREATE FUNCTION hmac(bytea, bytea, text) RETURNS bytea
+  AS '$libdir/pgcrypto',
+  'pg_hmac' LANGUAGE 'C';
+
+CREATE FUNCTION hmac_exists(text) RETURNS bool
+  AS '$libdir/pgcrypto',
+  'pg_hmac_exists' LANGUAGE 'C';
+
+CREATE FUNCTION crypt(text, text) RETURNS text
+  AS '$libdir/pgcrypto',
+  'pg_crypt' LANGUAGE 'C';
+
+CREATE FUNCTION gen_salt(text) RETURNS text
+  AS '$libdir/pgcrypto',
+  'pg_gen_salt' LANGUAGE 'C';
+
+CREATE FUNCTION gen_salt(text, int4) RETURNS text
+  AS '$libdir/pgcrypto',
+  'pg_gen_salt_rounds' LANGUAGE 'C';
+
+CREATE FUNCTION encrypt(bytea, bytea, text) RETURNS bytea
+  AS '$libdir/pgcrypto',
+  'pg_encrypt' LANGUAGE 'C';
+
+CREATE FUNCTION decrypt(bytea, bytea, text) RETURNS bytea
+  AS '$libdir/pgcrypto',
+  'pg_decrypt' LANGUAGE 'C';
+
+CREATE FUNCTION encrypt_iv(bytea, bytea, bytea, text) RETURNS bytea
+  AS '$libdir/pgcrypto',
+  'pg_encrypt_iv' LANGUAGE 'C';
+
+CREATE FUNCTION decrypt_iv(bytea, bytea, bytea, text) RETURNS bytea
+  AS '$libdir/pgcrypto',
+  'pg_decrypt_iv' LANGUAGE 'C';
+
+CREATE FUNCTION cipher_exists(text) RETURNS bool
+  AS '$libdir/pgcrypto',
+  'pg_cipher_exists' LANGUAGE 'C';
+
+