@ -73,6 +73,152 @@ copy copytest3 to stdout csv header;
c1,"col with , comma","col with "" quote"
1,a,1
2,b,2
--- test copying in JSON mode with various styles
copy (select 1 union all select 2) to stdout with (format json);
{"?column?":1}
{"?column?":2}
copy (select 1 as foo union all select 2) to stdout with (format json);
{"foo":1}
{"foo":2}
copy (values (1), (2)) TO stdout with (format json);
{"column1":1}
{"column1":2}
copy copytest to stdout json;
{"style":"DOS","test":"abc\r\ndef","filler":1}
{"style":"Unix","test":"abc\ndef","filler":2}
{"style":"Mac","test":"abc\rdef","filler":3}
{"style":"esc\\ape","test":"a\\r\\\r\\\n\\nb","filler":4}
copy copytest to stdout (format json);
{"style":"DOS","test":"abc\r\ndef","filler":1}
{"style":"Unix","test":"abc\ndef","filler":2}
{"style":"Mac","test":"abc\rdef","filler":3}
{"style":"esc\\ape","test":"a\\r\\\r\\\n\\nb","filler":4}
copy (select * from copytest) to stdout (format json);
{"style":"DOS","test":"abc\r\ndef","filler":1}
{"style":"Unix","test":"abc\ndef","filler":2}
{"style":"Mac","test":"abc\rdef","filler":3}
{"style":"esc\\ape","test":"a\\r\\\r\\\n\\nb","filler":4}
-- all of the following should yield error
copy copytest to stdout (format json, delimiter '|');
ERROR: cannot specify DELIMITER in JSON mode
copy copytest to stdout (format json, null '\N');
ERROR: cannot specify NULL in JSON mode
copy copytest to stdout (format json, default '|');
ERROR: cannot specify DEFAULT in JSON mode
copy copytest to stdout (format json, header);
ERROR: cannot specify HEADER in JSON mode
copy copytest to stdout (format json, header 1);
ERROR: cannot specify HEADER in JSON mode
copy copytest to stdout (format json, quote '"');
ERROR: COPY QUOTE requires CSV mode
copy copytest to stdout (format json, escape '"');
ERROR: COPY ESCAPE requires CSV mode
copy copytest to stdout (format json, force_quote *);
ERROR: COPY FORCE_QUOTE requires CSV mode
copy copytest to stdout (format json, force_not_null *);
ERROR: COPY FORCE_NOT_NULL requires CSV mode
copy copytest to stdout (format json, force_null *);
ERROR: COPY FORCE_NULL requires CSV mode
copy copytest to stdout (format json, on_error ignore);
ERROR: COPY ON_ERROR cannot be used with COPY TO
LINE 1: copy copytest to stdout (format json, on_error ignore);
^
copy copytest to stdout (format json, reject_limit 1);
ERROR: COPY REJECT_LIMIT requires ON_ERROR to be set to IGNORE
copy copytest from stdin(format json);
ERROR: COPY FORMAT JSON is not supported for COPY FROM
-- all of the above should yield error
-- column list with json format
copy copytest (style, test, filler) to stdout (format json);
{"style":"DOS","test":"abc\r\ndef","filler":1}
{"style":"Unix","test":"abc\ndef","filler":2}
{"style":"Mac","test":"abc\rdef","filler":3}
{"style":"esc\\ape","test":"a\\r\\\r\\\n\\nb","filler":4}
-- column list with diverse data types
create temp table copyjsontest_types (
id int,
js json,
jsb jsonb,
arr int[],
n numeric(10,2),
b boolean,
ts timestamp,
t text);
insert into copyjsontest_types values
(1, '{"a":1}', '{"b":2}', '{1,2,3}', 3.14, true,
'2024-01-15 10:30:00', 'hello'),
(2, '[1,null,"x"]', '{"nested":{"k":"v"}}', '{4,5}', -99.99, false,
'2024-06-30 23:59:59', 'world'),
(3, 'null', 'null', '{}', null, null, null, null);
-- full table
copy copyjsontest_types to stdout (format json);
{"id":1,"js":{"a":1},"jsb":{"b": 2},"arr":[1,2,3],"n":3.14,"b":true,"ts":"2024-01-15T10:30:00","t":"hello"}
{"id":2,"js":[1,null,"x"],"jsb":{"nested": {"k": "v"}},"arr":[4,5],"n":-99.99,"b":false,"ts":"2024-06-30T23:59:59","t":"world"}
{"id":3,"js":null,"jsb":null,"arr":[],"n":null,"b":null,"ts":null,"t":null}
-- column subsets exercising each type
copy copyjsontest_types (id, js, jsb) to stdout (format json);
{"id":1,"js":{"a":1},"jsb":{"b": 2}}
{"id":2,"js":[1,null,"x"],"jsb":{"nested": {"k": "v"}}}
{"id":3,"js":null,"jsb":null}
copy copyjsontest_types (id, arr, n, b) to stdout (format json);
{"id":1,"arr":[1,2,3],"n":3.14,"b":true}
{"id":2,"arr":[4,5],"n":-99.99,"b":false}
{"id":3,"arr":[],"n":null,"b":null}
copy copyjsontest_types (jsb, t) to stdout (format json);
{"jsb":{"b": 2},"t":"hello"}
{"jsb":{"nested": {"k": "v"}},"t":"world"}
{"jsb":null,"t":null}
copy copyjsontest_types (id, ts) to stdout (format json);
{"id":1,"ts":"2024-01-15T10:30:00"}
{"id":2,"ts":"2024-06-30T23:59:59"}
{"id":3,"ts":null}
-- single column: json and jsonb
copy copyjsontest_types (js) to stdout (format json);
{"js":{"a":1}}
{"js":[1,null,"x"]}
{"js":null}
copy copyjsontest_types (jsb) to stdout (format json);
{"jsb":{"b": 2}}
{"jsb":{"nested": {"k": "v"}}}
{"jsb":null}
drop table copyjsontest_types;
-- embedded escaped characters
create temp table copyjsontest (
id bigserial,
f1 text,
f2 timestamptz);
insert into copyjsontest
select g.i,
CASE WHEN g.i % 2 = 0 THEN
'line with '' in it: ' || g.i::text
ELSE
'line with " in it: ' || g.i::text
END,
'Mon Feb 10 17:32:01 1997 PST'
from generate_series(1,5) as g(i);
insert into copyjsontest (f1) values
(E'aaa\"bbb'::text),
(E'aaa\\bbb'::text),
(E'aaa\/bbb'::text),
(E'aaa\bbbb'::text),
(E'aaa\fbbb'::text),
(E'aaa\nbbb'::text),
(E'aaa\rbbb'::text),
(E'aaa\tbbb'::text);
copy copyjsontest to stdout json;
{"id":1,"f1":"line with \" in it: 1","f2":"1997-02-10T17:32:01-08:00"}
{"id":2,"f1":"line with ' in it: 2","f2":"1997-02-10T17:32:01-08:00"}
{"id":3,"f1":"line with \" in it: 3","f2":"1997-02-10T17:32:01-08:00"}
{"id":4,"f1":"line with ' in it: 4","f2":"1997-02-10T17:32:01-08:00"}
{"id":5,"f1":"line with \" in it: 5","f2":"1997-02-10T17:32:01-08:00"}
{"id":1,"f1":"aaa\"bbb","f2":null}
{"id":2,"f1":"aaa\\bbb","f2":null}
{"id":3,"f1":"aaa/bbb","f2":null}
{"id":4,"f1":"aaa\bbbb","f2":null}
{"id":5,"f1":"aaa\fbbb","f2":null}
{"id":6,"f1":"aaa\nbbb","f2":null}
{"id":7,"f1":"aaa\rbbb","f2":null}
{"id":8,"f1":"aaa\tbbb","f2":null}
create temp table copytest4 (
c1 int,
"colname with tab: " text);
Andrew Dunstan
3 months ago