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Add the json_group_array() and json_group_object() aggregate functions to

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the JSON1 extension.

FossilOrigin-Name: 7f386a9332237100a345035ca213327e21d95855
This commit is contained in:
drh
2015-12-30 01:07:02 +00:00
parent e1462a762c
commit ff135ae4c3
4 changed files with 184 additions and 8 deletions
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test/json103.test Normal file
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# 2015-12-30
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements tests for JSON aggregate SQL functions
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
ifcapable !json1 {
finish_test
return
}
do_execsql_test json103-100 {
CREATE TABLE t1(a,b,c);
WITH RECURSIVE c(x) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<100)
INSERT INTO t1(a,b,c) SELECT x, x%3, printf('n%d',x) FROM c;
UPDATE t1 SET a='orange' WHERE rowid=39;
UPDATE t1 SET a=32.5 WHERE rowid=31;
UPDATE t1 SET a=x'303132' WHERE rowid=29;
UPDATE t1 SET a=NULL WHERE rowid=37;
SELECT json_group_array(a) FROM t1 WHERE a<0 AND typeof(a)!='blob';
} {{[]}}
do_catchsql_test json103-101 {
SELECT json_group_array(a) FROM t1;
} {1 {JSON cannot hold BLOB values}}
do_execsql_test json103-110 {
SELECT json_group_array(a) FROM t1
WHERE rowid BETWEEN 31 AND 39;
} {{[32.5,32,33,34,35,36,null,38,"orange"]}}
do_execsql_test json103-111 {
SELECT json_array_length(json_group_array(a)) FROM t1
WHERE rowid BETWEEN 31 AND 39;
} {9}
do_execsql_test json103-120 {
SELECT b, json_group_array(a) FROM t1 WHERE rowid<10 GROUP BY b ORDER BY b;
} {0 {[3,6,9]} 1 {[1,4,7]} 2 {[2,5,8]}}
do_execsql_test json103-200 {
SELECT json_group_object(c,a) FROM t1 WHERE a<0 AND typeof(a)!='blob';
} {{{}}}
do_catchsql_test json103-201 {
SELECT json_group_object(c,a) FROM t1;
} {1 {JSON cannot hold BLOB values}}
do_execsql_test json103-210 {
SELECT json_group_object(c,a) FROM t1
WHERE rowid BETWEEN 31 AND 39 AND rowid%2==1;
} {{{"n31":32.5,"n33":33,"n35":35,"n37":null,"n39":"orange"}}}
do_execsql_test json103-220 {
SELECT b, json_group_object(c,a) FROM t1
WHERE rowid<7 GROUP BY b ORDER BY b;
} {0 {{"n3":3,"n6":6}} 1 {{"n1":1,"n4":4}} 2 {{"n2":2,"n5":5}}}
finish_test