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SI65753 - OSP-DB-OTHER-INCORROUT JSON_TABLE incorrect lax mode process

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PTF ( Program Temporary Fixes ) Cover letter


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Abstract

OSP-DB-OTHER-INCORROUT JSON_TABLE incorrect lax mode process


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
CO   5770SS1  V7R3M0    SI63983   00/00    0000



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APAR Error Description / Circumvention

-----------------------------------------------
The lax mode processing for JSON_TABLE does not return the
expected result for the following query:

SELECT * FROM JSON_TABLE(
'{ "x": [ 1,2 ] }' ,
'$ '
COLUMNS(   "x"   varchar(20) PATH 'lax $.x'   ) error on
error) t;

The query currently returns the value 1, but should be returning
an error because the use of lax mode should result in the
sequence [ 1, 2 ], which cannot be converted to a scalar value.


CORRECTION FOR APAR SE67801 :
-----------------------------
The lax mode processing JSON_TABLE has been correctly to return
an error in this case.  If an existing application relies on the
current behavior, it can be corrected by changing the SQL/JSON
path to explicitly reference the first element of the element.
For example, the query above can be modified as follows to
return the same value as before the fix.

SELECT * FROM JSON_TABLE(
'{ "x": [ 1,2 ] }' ,
'$ '
COLUMNS(   "x"   varchar(20) PATH 'lax $.x[0]'   ) error on
error) t;



CIRCUMVENTION FOR APAR SE67801 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


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Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   SI65563      OSP-DB-OTHER SQL JSON COMMA DECIMAL INCORROUT
   SI65324      OSP-DB INTERNAL MAINTENANCE
   SI64653      OSP-DB-OTHER-F/QSQJSON2-T/QSQJSON2-MSGMCH3601
   SI63853      OSP-DB INTERNAL MAINTENANCE
   SI62571      OSP-DB INTERNAL MAINTENANCE
   SI62285      OSP-DB INTERNAL MAINTENANCE
   SI62148      OSP-DB INTERNAL MAINTENANCE
   SI61895      OSP-DB INTERNAL MAINTENANCE
   SI61181      OSP-DB INTERNAL MAINTENANCE
   SI61067      OSP-DB INTERNAL MAINTENANCE
   SI60691      OSP-DB INTERNAL MAINTENANCE
   SI60691      OSP-DB INTERNAL MAINTENANCE

Summary Information

System..............................  i
Models..............................  
Release.............................  V7R3M0
Licensed Program....................  5770SS1
APAR Fixed..........................  View details for APAR SE67801
Superseded by:......................  View fix details for PTF SI82245
Recompile...........................  N
Library.............................  QSYS
MRI Feature ........................  NONE
Cum Level...........................  C8025730


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Document Information

Modified date:
18 May 2023