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Ziy1-Tan cdd41f05f3 MCOL-785 Implement DISTRIBUTED JSON functions
The following functions are created:
Create function JSON_VALID and test cases
Create function JSON_DEPTH and test cases
Create function JSON_LENGTH and test cases
Create function JSON_EQUALS and test cases
Create function JSON_NORMALIZE and test cases
Create function JSON_TYPE and test cases
Create function JSON_OBJECT and test cases
Create function JSON_ARRAY and test cases
Create function JSON_KEYS and test cases
Create function JSON_EXISTS and test cases
Create function JSON_QUOTE/JSON_UNQUOTE and test cases
Create function JSON_COMPACT/DETAILED/LOOSE and test cases
Create function JSON_MERGE and test cases
Create function JSON_MERGE_PATCH and test cases
Create function JSON_VALUE and test cases
Create function JSON_QUERY and test cases
Create function JSON_CONTAINS and test cases
Create function JSON_ARRAY_APPEND and test cases
Create function JSON_ARRAY_INSERT and test cases
Create function JSON_INSERT/REPLACE/SET and test cases
Create function JSON_REMOVE and test cases
Create function JSON_CONTAINS_PATH and test cases
Create function JSON_OVERLAPS and test cases
Create function JSON_EXTRACT and test cases
Create function JSON_SEARCH and test cases

Note:
Some functions output differs from MDB because session variables that affects functions output,e.g JSON_QUOTE/JSON_UNQUOTE
This depends on MCOL-5212
2022-08-30 22:22:23 +08:00

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--source ../include/have_columnstore.inc
--disable_warnings
DROP DATABASE IF EXISTS json_length_db;
--enable_warnings
CREATE DATABASE json_length_db;
USE json_length_db;
--echo # ----------------------------------------------------------------------
--echo # Test of JSON_LENGTH function.
--echo # ----------------------------------------------------------------------
CREATE TABLE t1(l LONGTEXT) ENGINE = columnstore;
--echo # Invalid json text
INSERT INTO t1 VALUES(null);
INSERT INTO t1 VALUES('1');
INSERT INTO t1 VALUES('abc');
INSERT INTO t1 VALUES('"abc"');
INSERT INTO t1 VALUES('true');
INSERT INTO t1 VALUES('false');
INSERT INTO t1 VALUES('null');
--echo error ER_INVALID_JSON_TEXT_IN_PARAM
SELECT JSON_LENGTH(l) FROM t1;
--echo # Valid json text
TRUNCATE t1;
INSERT INTO t1 VALUES('{}');
INSERT INTO t1 VALUES('{ "a" : 100, "b" : 200 }');
INSERT INTO t1 VALUES('{ "a" : 100, "b" : [ 300, 400, 500 ] }');
INSERT INTO t1 VALUES('[]');
INSERT INTO t1 VALUES('[ null, "foo", true, 1.1 ]');
INSERT INTO t1 VALUES('[ null, "foo", true, { "a" : "b", "c" : "d" } ]');
INSERT INTO t1 VALUES('"foo"');
INSERT INTO t1 VALUES('1.2');
SELECT JSON_LENGTH(l) FROM t1;
--echo # Bad path expressions
TRUNCATE t1;
INSERT INTO t1 VALUES('true');
--echo error ER_INVALID_JSON_PATH
SELECT JSON_LENGTH(l, 'c$') FROM t1;
TRUNCATE t1;
INSERT INTO t1 VALUES('{ "foo" : [ true, false ] }');
--echo error ER_INVALID_JSON_PATH
SELECT JSON_LENGTH(l, '$.foo[bar]') FROM t1;
--echo # wildcards not allowed in path expressions for this function
TRUNCATE t1;
INSERT INTO t1 VALUES('true');
--echo error ER_INVALID_JSON_PATH_WILDCARD
SELECT JSON_LENGTH(l, '$.*') FROM t1;
TRUNCATE t1;
INSERT INTO t1 VALUES('true');
--echo error ER_INVALID_JSON_PATH_WILDCARD
SELECT JSON_LENGTH(l, '$.foo**.bar') FROM t1;
--echo # Error ER_INVALID_JSON_TEXT_IN_PARAM
TRUNCATE t1;
INSERT INTO t1 VALUES('abc');
INSERT INTO t1 VALUES('[ "a", true, "b" , { "e" : false }, "c" , null');
SELECT JSON_LENGTH(l) FROM t1;
--echo # Path exist
TRUNCATE t1;
INSERT INTO t1 VALUES('[ 1, [ 2, 3, 4 ], 5 ]');
SELECT JSON_LENGTH(l, '$[0]') FROM t1;
SELECT JSON_LENGTH(l, '$[1]') FROM t1;
SELECT JSON_LENGTH(l, '$[2]') FROM t1;
SELECT JSON_LENGTH(l, '$[2][0]') FROM t1;
TRUNCATE t1;
INSERT INTO t1 VALUES('[ 1, [ 2, 3, 4 ], {"a": 1} ]');
SELECT JSON_LENGTH(l, '$[2][0]') FROM t1;
TRUNCATE t1;
INSERT INTO t1 VALUES('[ 1, { "a": true, "b": false, "c": null }, 5 ]');
SELECT JSON_LENGTH(l, '$[1]') FROM t1;
TRUNCATE t1;
INSERT INTO t1 VALUES('{ "a" : 123, "b" : [ 123, 456, 789 ] }');
SELECT JSON_LENGTH(l) FROM t1;
SELECT JSON_LENGTH(l, '$.b') FROM t1;
SELECT JSON_LENGTH(l, '$.c') FROM t1;
--echo # No-existent path
TRUNCATE t1;
INSERT INTO t1 VALUES('[ 1, [ 2, 3, 4 ], 5 ]');
SELECT JSON_LENGTH(l, '$[2][1]') FROM t1;
DROP TABLE t1;
DROP DATABASE json_length_db;