File: types.out

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postgresql-pllua 1%3A2.0.10-5
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--
\set VERBOSITY terse
--
create type ctype3 as (fred integer, jim numeric);
do $$
  begin
    if current_setting('server_version_num')::integer >= 110000 then
      execute 'create domain dtype as ctype3 check((VALUE).jim is not null)';
    else
      execute 'create type dtype as (fred integer, jim numeric)';
    end if;
  end;
$$;
create type ctype2 as (thingy text, wotsit integer);
create type ctype as (foo text, bar ctype2, baz dtype);
create table tdata (
    intcol integer,
    textcol text,
    charcol char(32),
    varcharcol varchar(32),
    compcol ctype,
    dcompcol dtype
);
insert into tdata
values (1, 'row 1', 'padded with blanks', 'not padded', ('x',('y',1111),(111,11.1)), (11,1.1)),
       (2, 'row 2', 'padded with blanks', 'not padded', ('x',('y',2222),(222,22.2)), (22,2.2)),
       (3, 'row 3', 'padded with blanks', 'not padded', ('x',('y',3333),(333,33.3)), (33,3.3));
create function tf1() returns setof tdata language pllua as $f$
  for i = 1,4 do
    coroutine.yield({ intcol = i,
                      textcol = "row "..i,
		      charcol = "padded with blanks",
		      varcharcol = "not padded",
		      compcol = { foo = "x",
		      	      	  bar = { thingy = "y", wotsit = i*1111 },
				  baz = { fred = i*111, jim = i*11.1 }
				},
		      dcompcol = { fred = i*11, jim = i*1.1 }
		    })
  end
$f$;
select * from tf1();
 intcol | textcol |             charcol              | varcharcol |           compcol           | dcompcol 
--------+---------+----------------------------------+------------+-----------------------------+----------
      1 | row 1   | padded with blanks               | not padded | (x,"(y,1111)","(111,11.1)") | (11,1.1)
      2 | row 2   | padded with blanks               | not padded | (x,"(y,2222)","(222,22.2)") | (22,2.2)
      3 | row 3   | padded with blanks               | not padded | (x,"(y,3333)","(333,33.3)") | (33,3.3)
      4 | row 4   | padded with blanks               | not padded | (x,"(y,4444)","(444,44.4)") | (44,4.4)
(4 rows)

--
-- various checks of type handling
--
do language pllua $$ print(pgtype(nil,'ctype3')(1,2)) $$;
INFO:  (1,2)
do language pllua $$ print(pgtype(nil,'ctype3')({1,2})) $$;
INFO:  (,)
do language pllua $$ print(pgtype(nil,'ctype3')(true,true)) $$;
ERROR:  pllua: incompatible value type
do language pllua $$ print(pgtype(nil,'ctype3')("1","2")) $$;
INFO:  (1,2)
do language pllua $$ print(pgtype(nil,'ctype3')({fred=1,jim=2})) $$;
INFO:  (1,2)
do language pllua $$ print(pgtype(nil,'ctype3')({fred=1,jim={}})) $$;
ERROR:  pllua: incompatible value type
do language pllua $$ print(pgtype(nil,'ctype3')({fred=1,jim=nil})) $$;
INFO:  (1,)
--do language pllua $$ print(pgtype(nil,'dtype')({fred=1,jim=nil})) $$;
create function tf2() returns setof tdata language pllua as $f$
  local t = spi.execute("select * from tdata")
  for i,v in ipairs(t) do coroutine.yield(v) end
$f$;
select * from tf2();
 intcol | textcol |             charcol              | varcharcol |           compcol           | dcompcol 
--------+---------+----------------------------------+------------+-----------------------------+----------
      1 | row 1   | padded with blanks               | not padded | (x,"(y,1111)","(111,11.1)") | (11,1.1)
      2 | row 2   | padded with blanks               | not padded | (x,"(y,2222)","(222,22.2)") | (22,2.2)
      3 | row 3   | padded with blanks               | not padded | (x,"(y,3333)","(333,33.3)") | (33,3.3)
(3 rows)

do language pllua $$ print(pgtype.ctype3()) $$;
INFO:  (,)
-- ensure detoasting of nested composites works right
do language pllua $f$
  for r in spi.rows("select * from tdata") do
    print(r.intcol, r.compcol.foo, r.compcol.bar.wotsit, r.dcompcol.jim)
  end
$f$;
INFO:  1	x	1111	1.1
INFO:  2	x	2222	2.2
INFO:  3	x	3333	3.3
do language pllua $$
  a = pgtype.array.integer({{{1,2}},{{3,4}},{{5,6}}},3,1,2)
  print(a)
  print(#a,#(a[1]),#(a[1][1]))
  print(a[3][1][2],a[1][1][1])
$$;
INFO:  {{{1,2}},{{3,4}},{{5,6}}}
INFO:  3	1	2
INFO:  6	1
do language pllua $$ print(pgtype.int4range(123,456)) $$;
INFO:  [123,456)
do language pllua $$ print(pgtype.int4range()) $$;
INFO:  empty
do language pllua $$ print(pgtype.int4range(123,456,'(]')) $$;
INFO:  [124,457)
do language pllua $$ print(pgtype.int4range(nil,456,'(]')) $$;
INFO:  (,457)
do language pllua $$ print(pgtype.int4range(nil,nil)) $$;
INFO:  (,)
do language pllua $$ print(pgtype.int4range(123,nil)) $$;
INFO:  [123,)
do language pllua $$ print(pgtype.int4range('[12,56]')) $$;
INFO:  [12,57)
do language pllua $$
  local r1,r2,r3 = pgtype.numrange('[12,56]'),
                   pgtype.numrange('empty'),
                   pgtype.numrange('(12,)')
  print(r1.lower,r1.upper,r1.lower_inc,r1.upper_inc,r1.lower_inf,r1.upper_inf,r1.isempty)
  print(r2.lower,r2.upper,r2.lower_inc,r2.upper_inc,r2.lower_inf,r2.upper_inf,r2.isempty)
  print(r3.lower,r3.upper,r3.lower_inc,r3.upper_inc,r3.lower_inf,r3.upper_inf,r3.isempty)
$$;
INFO:  12	56	true	true	false	false	false
INFO:  nil	nil	false	false	false	false	true
INFO:  12	nil	false	false	false	true	false
create type myenum as enum ('TRUE', 'FALSE', 'FILE_NOT_FOUND');
create function pg_temp.f1(a myenum) returns text language pllua as $$ print(a,type(a)) return a $$;
select pg_temp.f1(x) from unnest(enum_range(null::myenum)) x;
INFO:  TRUE	string
INFO:  FALSE	string
INFO:  FILE_NOT_FOUND	string
       f1       
----------------
 TRUE
 FALSE
 FILE_NOT_FOUND
(3 rows)

create function pg_temp.f2() returns myenum language pllua as $$ return 'FILE_NOT_FOUND' $$;
select pg_temp.f2();
       f2       
----------------
 FILE_NOT_FOUND
(1 row)

-- domains
create domain mydom1 as varchar(3);
create domain mydom2 as varchar(3) check (value in ('foo','bar','baz'));
create domain mydom3 as varchar(3) not null;
create domain mydom4 as varchar(3) not null check (value in ('foo','bar','baz'));
create function pg_temp.f3(a mydom1) returns void language pllua as $$
  print(pgtype(nil,1):name(), type(a), #a)
$$;
select pg_temp.f3('foo') union all select pg_temp.f3('bar   ');
INFO:  mydom1	string	3
INFO:  mydom1	string	3
 f3 
----
 
 
(2 rows)

create function pg_temp.f4d1(a text) returns mydom1 language pllua as $$
  return a
$$;
select pg_temp.f4d1('foo');
 f4d1 
------
 foo
(1 row)

select pg_temp.f4d1('bar   ');
 f4d1 
------
 bar
(1 row)

select pg_temp.f4d1('toolong');
ERROR:  value too long for type character varying(3)
select pg_temp.f4d1(null);
 f4d1 
------
 
(1 row)

create function pg_temp.f4d2(a text) returns mydom2 language pllua as $$
  return a
$$;
select pg_temp.f4d2('bar   ');
 f4d2 
------
 bar
(1 row)

select pg_temp.f4d2('bad');
ERROR:  value for domain mydom2 violates check constraint "mydom2_check"
select pg_temp.f4d2('toolong');
ERROR:  value too long for type character varying(3)
select pg_temp.f4d2(null);
 f4d2 
------
 
(1 row)

create function pg_temp.f4d3(a text) returns mydom3 language pllua as $$
  return a
$$;
select pg_temp.f4d3('bar   ');
 f4d3 
------
 bar
(1 row)

select pg_temp.f4d3('toolong');
ERROR:  value too long for type character varying(3)
select pg_temp.f4d3(null);
ERROR:  domain mydom3 does not allow null values
create function pg_temp.f4d4(a text) returns mydom4 language pllua as $$
  return a
$$;
select pg_temp.f4d4('bar   ');
 f4d4 
------
 bar
(1 row)

select pg_temp.f4d4('bad');
ERROR:  value for domain mydom4 violates check constraint "mydom4_check"
select pg_temp.f4d4('toolong');
ERROR:  value too long for type character varying(3)
select pg_temp.f4d4(null);
ERROR:  domain mydom4 does not allow null values
-- array coercions
-- relabeltype path
do language pllua $$
  local a = pgtype.array.varchar("foo","bar")
  local b = pgtype.array.text(a)
  print(b)
$$;
INFO:  {foo,bar}
-- cast function path
do language pllua $$
  local a = pgtype.array.boolean(false,true)
  local b = pgtype.array.text(a)
  print(b)
$$;
INFO:  {false,true}
-- IO path
do language pllua $$
  local a = pgtype.array.integer(10,20)
  local b = pgtype.array.text(a)
  print(b)
$$;
INFO:  {10,20}
-- array typmod coercions
create temp table atc (a varchar(10)[], b char(10)[]);
do language pllua $$
  local a = pgtype.array.varchar('foo','bar','value_too_long_for_type')
  local b = pgtype.atc(a,nil)
$$;
ERROR:  value too long for type character varying(10)
do language pllua $$
  local a = pgtype.array.bpchar('foo','bar','value            ')
  local b = pgtype.atc(nil,a)
  print(b)
$$;
INFO:  (,"{""foo       "",""bar       "",""value     ""}")
-- composite type construction edge cases
do language pllua $$
  print(pgtype.ctype3())
  print(pgtype.ctype3(nil))
$$;
INFO:  (,)
INFO:  (,)
do language pllua $$
  print(pgtype.ctype3(1))  -- error
$$;
ERROR:  pllua: incorrect number of arguments for type constructor (expected 2 got 1)
do language pllua $$
  print(pgtype.ctype3(1,2))
$$;
INFO:  (1,2)
--end