Re: BUG #13936: jsonb_object() -> ERROR: unknown type of jsonb container

On Mon, Feb 8, 2016 at 11:52 AM,  <xtracoder@gmail.com> wrote:
> Here is the simple code to reproduce:
>
>     select jsonb_object('{}'::text[], '{}'::text[])
>
> Result of execution is
>
>         ERROR:  unknown type of jsonb container
>         ********** Error **********
>
>         ERROR: unknown type of jsonb container
>         SQL state: XX000
>
> Expected result - jsonb object with no attributes, i.e.: '{}'

I agree that this is a bug.

Looks like it's coming from the jsonb output function, which is an
additional concern:

#0  errfinish (dummy=dummy@entry=0) at elog.c:412
#1  0x00000000007fc11d in elog_finish (elevel=elevel@entry=20,
fmt=fmt@entry=0x9c5c30 "unkno"...) at elog.c:1372
#2  0x000000000076b006 in iteratorFromContainer
(container=container@entry=0x1be0d2c, parent=parent@entry=0x0) at
jsonb_util.c:930
#3  0x000000000076c3b4 in JsonbIteratorInit
(container=container@entry=0x1be0d2c) at jsonb_util.c:719
#4  0x0000000000766ea1 in JsonbToCStringWorker (out=0x1c74780,
out@entry=0x0, in=0x1be0d2c, estimated_len=6, indent=indent@entry=0
'\000') at jsonb.c:471
#5  0x000000000076855c in JsonbToCString (out=out@entry=0x0,
in=<optimized out>, estimated_len=<optimized out>) at jsonb.c:430
#6  0x000000000076857e in jsonb_out (fcinfo=<optimized out>) at jsonb.c:136
#7  0x00000000007fec03 in FunctionCall1Coll
(flinfo=flinfo@entry=0x1c6d0f0, collation=collation@entry=0,
arg1=arg1@entry=29232424) at fmgr.c:1297
#8  0x000000000080015f in OutputFunctionCall (flinfo=0x1c6d0f0,
val=29232424) at fmgr.c:1950
#9  0x000000000047294d in  (slot=0x1c6c650, self=0x1be13c0) at printtup.c:359


--
Peter Geoghegan