postgresql/contrib/chkpass/chkpass--1.0.sql
Tom Lane 029fac2264 Avoid use of CREATE OR REPLACE FUNCTION in extension installation files.
It was never terribly consistent to use OR REPLACE (because of the lack of
comparable functionality for data types, operators, etc), and
experimentation shows that it's now positively pernicious in the extension
world.  We really want a failure to occur if there are any conflicts, else
it's unclear what the extension-ownership state of the conflicted object
ought to be.  Most of the time, CREATE EXTENSION will fail anyway because
of conflicts on other object types, but an extension defining only
functions can succeed, with bad results.
2011-02-13 22:54:52 -05:00

65 lines
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SQL

/* contrib/chkpass/chkpass--1.0.sql */
--
-- Input and output functions and the type itself:
--
CREATE FUNCTION chkpass_in(cstring)
RETURNS chkpass
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT;
CREATE FUNCTION chkpass_out(chkpass)
RETURNS cstring
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT;
CREATE TYPE chkpass (
internallength = 16,
input = chkpass_in,
output = chkpass_out
);
CREATE FUNCTION raw(chkpass)
RETURNS text
AS 'MODULE_PATHNAME', 'chkpass_rout'
LANGUAGE C STRICT;
--
-- The various boolean tests:
--
CREATE FUNCTION eq(chkpass, text)
RETURNS bool
AS 'MODULE_PATHNAME', 'chkpass_eq'
LANGUAGE C STRICT;
CREATE FUNCTION ne(chkpass, text)
RETURNS bool
AS 'MODULE_PATHNAME', 'chkpass_ne'
LANGUAGE C STRICT;
--
-- Now the operators.
--
CREATE OPERATOR = (
leftarg = chkpass,
rightarg = text,
negator = <>,
procedure = eq
);
CREATE OPERATOR <> (
leftarg = chkpass,
rightarg = text,
negator = =,
procedure = ne
);
COMMENT ON TYPE chkpass IS 'password type with checks';
--
-- eof
--