9b46abb7c4
RETURNING clause, not just a SELECT as formerly. A side effect of this patch is that when a set-returning SQL function is used in a FROM clause, performance is improved because the output is collected into a tuplestore within the function, rather than using the less efficient value-per-call mechanism.
83 lines
2.7 KiB
Plaintext
83 lines
2.7 KiB
Plaintext
--
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-- CREATE_FUNCTION_1
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--
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CREATE FUNCTION widget_in(cstring)
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RETURNS widget
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AS '@libdir@/regress@DLSUFFIX@'
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LANGUAGE C STRICT;
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NOTICE: type "widget" is not yet defined
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DETAIL: Creating a shell type definition.
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CREATE FUNCTION widget_out(widget)
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RETURNS cstring
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AS '@libdir@/regress@DLSUFFIX@'
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LANGUAGE C STRICT;
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NOTICE: argument type widget is only a shell
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CREATE FUNCTION int44in(cstring)
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RETURNS city_budget
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AS '@libdir@/regress@DLSUFFIX@'
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LANGUAGE C STRICT;
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NOTICE: type "city_budget" is not yet defined
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DETAIL: Creating a shell type definition.
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CREATE FUNCTION int44out(city_budget)
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RETURNS cstring
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AS '@libdir@/regress@DLSUFFIX@'
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LANGUAGE C STRICT;
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NOTICE: argument type city_budget is only a shell
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CREATE FUNCTION check_primary_key ()
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RETURNS trigger
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AS '@libdir@/refint@DLSUFFIX@'
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LANGUAGE C;
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CREATE FUNCTION check_foreign_key ()
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RETURNS trigger
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AS '@libdir@/refint@DLSUFFIX@'
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LANGUAGE C;
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CREATE FUNCTION autoinc ()
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RETURNS trigger
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AS '@libdir@/autoinc@DLSUFFIX@'
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LANGUAGE C;
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CREATE FUNCTION funny_dup17 ()
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RETURNS trigger
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AS '@libdir@/regress@DLSUFFIX@'
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LANGUAGE C;
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CREATE FUNCTION ttdummy ()
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RETURNS trigger
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AS '@libdir@/regress@DLSUFFIX@'
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LANGUAGE C;
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CREATE FUNCTION set_ttdummy (int4)
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RETURNS int4
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AS '@libdir@/regress@DLSUFFIX@'
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LANGUAGE C STRICT;
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-- Things that shouldn't work:
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE SQL
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AS 'SELECT ''not an integer'';';
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ERROR: return type mismatch in function declared to return integer
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DETAIL: Actual return type is unknown.
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CONTEXT: SQL function "test1"
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE SQL
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AS 'not even SQL';
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ERROR: syntax error at or near "not"
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LINE 2: AS 'not even SQL';
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^
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE SQL
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AS 'SELECT 1, 2, 3;';
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ERROR: return type mismatch in function declared to return integer
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DETAIL: Final statement must return exactly one column.
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CONTEXT: SQL function "test1"
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE SQL
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AS 'SELECT $2;';
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ERROR: there is no parameter $2
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LINE 2: AS 'SELECT $2;';
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^
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE SQL
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AS 'a', 'b';
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ERROR: only one AS item needed for language "sql"
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE C
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AS 'nosuchfile';
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ERROR: could not access file "nosuchfile": No such file or directory
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE C
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AS '@libdir@/regress@DLSUFFIX@', 'nosuchsymbol';
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ERROR: could not find function "nosuchsymbol" in file "@libdir@/regress@DLSUFFIX@"
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE internal
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AS 'nosuch';
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ERROR: there is no built-in function named "nosuch"
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