Merge pull request ClickHouse#78807 from Avogar/json-to-json-cast-simple

Fix conversion between different JSON types by using simple, inefficient but reliable code

Author: Avogar

src/Functions/FunctionsConversion.h

@@ -9,10 +9,10 @@ k3
 k4
 k5
 k7
+k9
 Shared data paths:
 k6
 k8
-k9
 \N	1	2020-01-01	31	[1,2,3]	str1	\N	2020-01-01	\N	91
 \N	2	2020-01-02	\N	Hello	\N	false	\N	\N	92
 \N	3	2020-01-03	32	\N	42	\N	73	\N	\N
@@ -23,23 +23,23 @@ Decrease max_dynamic_paths to 3, max_dynamic_types to 1
 {"k1":3,"k2":"2020-01-03","k3":"32","k5":"42","k7":"73"}
 {"k1":4,"k2":"2020-01-04","k4":false,"k5":"str1","k6":true,"k8":84.84,"k9":"94"}
 Dynamic paths:
+k3
 k4
 k5
-k7
 Shared data paths:
-k3
 k6
+k7
 k8
 k9
 \N	1	2020-01-01	31	[1,2,3]	str1	\N	2020-01-01	\N	91
 \N	2	2020-01-02	\N	Hello	\N	false	\N	\N	92
 \N	3	2020-01-03	32	\N	42	\N	73	\N	\N
 \N	4	2020-01-04	\N	false	str1	true	\N	84.84	94
 Change typed paths
-{"k0":0,"k1":1,"k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k5":"str1","k6":false,"k7":"2020-01-01","k9":"91"}
-{"k0":0,"k1":2,"k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
-{"k0":0,"k1":3,"k2":"2020-01-03","k3":32,"k5":"42","k6":false,"k7":"73"}
-{"k0":0,"k1":4,"k2":"2020-01-04","k3":0,"k4":false,"k5":"str1","k6":true,"k8":84.84,"k9":"94"}
+{"k0":0,"k1":"1","k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k5":"str1","k6":false,"k7":"2020-01-01","k9":"91"}
+{"k0":0,"k1":"2","k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
+{"k0":0,"k1":"3","k2":"2020-01-03","k3":32,"k5":"42","k6":false,"k7":"73"}
+{"k0":0,"k1":"4","k2":"2020-01-04","k3":0,"k4":false,"k5":"str1","k6":true,"k8":84.84,"k9":"94"}
 Dynamic paths:
 k1
 k4
@@ -53,10 +53,10 @@ k9
 0	3	2020-01-03	32	\N	42	false	73	\N	\N
 0	4	2020-01-04	0	false	str1	true	\N	84.84	94
 Add new skip rules
-{"k0":0,"k1":1,"k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
-{"k0":0,"k1":2,"k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
-{"k0":0,"k1":3,"k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
-{"k0":0,"k1":4,"k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
+{"k0":0,"k1":"1","k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
+{"k0":0,"k1":"2","k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
+{"k0":0,"k1":"3","k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
+{"k0":0,"k1":"4","k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
 Dynamic paths:
 k1
 k4
@@ -68,10 +68,10 @@ k9
 0	3	2020-01-03	32	\N	\N	false	73	\N	\N
 0	4	2020-01-04	0	false	\N	true	\N	\N	94
 Decrease max_dynamic_paths and max_dynamic_types to 0
-{"k0":0,"k1":1,"k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
-{"k0":0,"k1":2,"k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
-{"k0":0,"k1":3,"k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
-{"k0":0,"k1":4,"k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
+{"k0":0,"k1":"1","k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
+{"k0":0,"k1":"2","k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
+{"k0":0,"k1":"3","k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
+{"k0":0,"k1":"4","k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
 Dynamic paths:
 Shared data paths:
 k1
@@ -83,35 +83,25 @@ k9
 0	3	2020-01-03	32	\N	\N	false	73	\N	\N
 0	4	2020-01-04	0	false	\N	true	\N	\N	94
 max_dynamic_paths=3
-Dynamic paths
+All paths:
 k1
 k2
 k3
 k4
-Shared data paths
-k1
 max_dynamic_paths=2
-Dynamic paths
+All paths:
 k1
 k2
 k3
 k4
-Shared data paths
-k1
-k2
 max_dynamic_paths=1
-Dynamic paths
+All paths:
 k1
 k2
 k3
 k4
-Shared data paths
-k1
-k2
-k3
 max_dynamic_paths=0
-Dynamic paths
-Shared data paths
+All paths:
 k1
 k2
 k3
@@ -127,10 +117,10 @@ k3
 k4
 k5
 k7
+k9
 Shared data paths:
 k6
 k8
-k9
 \N	1	2020-01-01	31	[1,2,3]	str1	\N	2020-01-01	\N	91
 \N	2	2020-01-02	\N	Hello	\N	false	\N	\N	92
 \N	3	2020-01-03	32	\N	42	\N	73	\N	\N
@@ -141,23 +131,23 @@ Decrease max_dynamic_paths to 3, max_dynamic_types to 1
 {"k1":3,"k2":"2020-01-03","k3":"32","k5":"42","k7":"73"}
 {"k1":4,"k2":"2020-01-04","k4":false,"k5":"str1","k6":true,"k8":84.84,"k9":"94"}
 Dynamic paths:
+k3
 k4
 k5
-k7
 Shared data paths:
-k3
 k6
+k7
 k8
 k9
 \N	1	2020-01-01	31	[1,2,3]	str1	\N	2020-01-01	\N	91
 \N	2	2020-01-02	\N	Hello	\N	false	\N	\N	92
 \N	3	2020-01-03	32	\N	42	\N	73	\N	\N
 \N	4	2020-01-04	\N	false	str1	true	\N	84.84	94
 Change typed paths
-{"k0":0,"k1":1,"k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k5":"str1","k6":false,"k7":"2020-01-01","k9":"91"}
-{"k0":0,"k1":2,"k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
-{"k0":0,"k1":3,"k2":"2020-01-03","k3":32,"k5":"42","k6":false,"k7":"73"}
-{"k0":0,"k1":4,"k2":"2020-01-04","k3":0,"k4":false,"k5":"str1","k6":true,"k8":84.84,"k9":"94"}
+{"k0":0,"k1":"1","k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k5":"str1","k6":false,"k7":"2020-01-01","k9":"91"}
+{"k0":0,"k1":"2","k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
+{"k0":0,"k1":"3","k2":"2020-01-03","k3":32,"k5":"42","k6":false,"k7":"73"}
+{"k0":0,"k1":"4","k2":"2020-01-04","k3":0,"k4":false,"k5":"str1","k6":true,"k8":84.84,"k9":"94"}
 Dynamic paths:
 k1
 k4
@@ -171,25 +161,25 @@ k9
 0	3	2020-01-03	32	\N	42	false	73	\N	\N
 0	4	2020-01-04	0	false	str1	true	\N	84.84	94
 Add new skip rules
-{"k0":0,"k1":1,"k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
-{"k0":0,"k1":2,"k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
-{"k0":0,"k1":3,"k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
-{"k0":0,"k1":4,"k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
+{"k0":0,"k1":"1","k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
+{"k0":0,"k1":"2","k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
+{"k0":0,"k1":"3","k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
+{"k0":0,"k1":"4","k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
 Dynamic paths:
 k1
 k4
-Shared data paths:
 k7
+Shared data paths:
 k9
 0	1	2020-01-01	31	[1,2,3]	\N	false	2020-01-01	\N	91
 0	2	2020-01-02	0	Hello	\N	false	\N	\N	92
 0	3	2020-01-03	32	\N	\N	false	73	\N	\N
 0	4	2020-01-04	0	false	\N	true	\N	\N	94
 Decrease max_dynamic_paths and max_dynamic_types to 0
-{"k0":0,"k1":1,"k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
-{"k0":0,"k1":2,"k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
-{"k0":0,"k1":3,"k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
-{"k0":0,"k1":4,"k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
+{"k0":0,"k1":"1","k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
+{"k0":0,"k1":"2","k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
+{"k0":0,"k1":"3","k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
+{"k0":0,"k1":"4","k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
 Dynamic paths:
 Shared data paths:
 k1
@@ -201,29 +191,25 @@ k9
 0	3	2020-01-03	32	\N	\N	false	73	\N	\N
 0	4	2020-01-04	0	false	\N	true	\N	\N	94
 max_dynamic_paths=3
-Dynamic paths
+All paths:
 k1
+k2
 k3
 k4
-Shared data paths
-k2
 max_dynamic_paths=2
-Dynamic paths
+All paths:
 k1
-k4
-Shared data paths
 k2
 k3
+k4
 max_dynamic_paths=1
-Dynamic paths
+All paths:
 k1
-Shared data paths
 k2
 k3
 k4
 max_dynamic_paths=0
-Dynamic paths
-Shared data paths
+All paths:
 k1
 k2
 k3
@@ -239,10 +225,10 @@ k3
 k4
 k5
 k7
+k9
 Shared data paths:
 k6
 k8
-k9
 \N	1	2020-01-01	31	[1,2,3]	str1	\N	2020-01-01	\N	91
 \N	2	2020-01-02	\N	Hello	\N	false	\N	\N	92
 \N	3	2020-01-03	32	\N	42	\N	73	\N	\N
@@ -253,23 +239,23 @@ Decrease max_dynamic_paths to 3, max_dynamic_types to 1
 {"k1":3,"k2":"2020-01-03","k3":"32","k5":"42","k7":"73"}
 {"k1":4,"k2":"2020-01-04","k4":false,"k5":"str1","k6":true,"k8":84.84,"k9":"94"}
 Dynamic paths:
+k3
 k4
 k5
-k7
 Shared data paths:
-k3
 k6
+k7
 k8
 k9
 \N	1	2020-01-01	31	[1,2,3]	str1	\N	2020-01-01	\N	91
 \N	2	2020-01-02	\N	Hello	\N	false	\N	\N	92
 \N	3	2020-01-03	32	\N	42	\N	73	\N	\N
 \N	4	2020-01-04	\N	false	str1	true	\N	84.84	94
 Change typed paths
-{"k0":0,"k1":1,"k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k5":"str1","k6":false,"k7":"2020-01-01","k9":"91"}
-{"k0":0,"k1":2,"k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
-{"k0":0,"k1":3,"k2":"2020-01-03","k3":32,"k5":"42","k6":false,"k7":"73"}
-{"k0":0,"k1":4,"k2":"2020-01-04","k3":0,"k4":false,"k5":"str1","k6":true,"k8":84.84,"k9":"94"}
+{"k0":0,"k1":"1","k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k5":"str1","k6":false,"k7":"2020-01-01","k9":"91"}
+{"k0":0,"k1":"2","k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
+{"k0":0,"k1":"3","k2":"2020-01-03","k3":32,"k5":"42","k6":false,"k7":"73"}
+{"k0":0,"k1":"4","k2":"2020-01-04","k3":0,"k4":false,"k5":"str1","k6":true,"k8":84.84,"k9":"94"}
 Dynamic paths:
 k1
 k4
@@ -283,25 +269,25 @@ k9
 0	3	2020-01-03	32	\N	42	false	73	\N	\N
 0	4	2020-01-04	0	false	str1	true	\N	84.84	94
 Add new skip rules
-{"k0":0,"k1":1,"k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
-{"k0":0,"k1":2,"k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
-{"k0":0,"k1":3,"k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
-{"k0":0,"k1":4,"k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
+{"k0":0,"k1":"1","k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
+{"k0":0,"k1":"2","k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
+{"k0":0,"k1":"3","k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
+{"k0":0,"k1":"4","k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
 Dynamic paths:
 k1
 k4
-Shared data paths:
 k7
+Shared data paths:
 k9
 0	1	2020-01-01	31	[1,2,3]	\N	false	2020-01-01	\N	91
 0	2	2020-01-02	0	Hello	\N	false	\N	\N	92
 0	3	2020-01-03	32	\N	\N	false	73	\N	\N
 0	4	2020-01-04	0	false	\N	true	\N	\N	94
 Decrease max_dynamic_paths and max_dynamic_types to 0
-{"k0":0,"k1":1,"k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
-{"k0":0,"k1":2,"k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
-{"k0":0,"k1":3,"k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
-{"k0":0,"k1":4,"k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
+{"k0":0,"k1":"1","k2":"2020-01-01","k3":31,"k4":["1","2","3"],"k6":false,"k7":"2020-01-01","k9":"91"}
+{"k0":0,"k1":"2","k2":"2020-01-02","k3":0,"k4":"Hello","k6":false,"k9":"92"}
+{"k0":0,"k1":"3","k2":"2020-01-03","k3":32,"k6":false,"k7":"73"}
+{"k0":0,"k1":"4","k2":"2020-01-04","k3":0,"k4":false,"k6":true,"k9":"94"}
 Dynamic paths:
 Shared data paths:
 k1
@@ -313,29 +299,25 @@ k9
 0	3	2020-01-03	32	\N	\N	false	73	\N	\N
 0	4	2020-01-04	0	false	\N	true	\N	\N	94
 max_dynamic_paths=3
-Dynamic paths
+All paths:
 k1
+k2
 k3
 k4
-Shared data paths
-k2
 max_dynamic_paths=2
-Dynamic paths
+All paths:
 k1
-k4
-Shared data paths
 k2
 k3
+k4
 max_dynamic_paths=1
-Dynamic paths
+All paths:
 k1
-Shared data paths
 k2
 k3
 k4
 max_dynamic_paths=0
-Dynamic paths
-Shared data paths
+All paths:
 k1
 k2
 k3