Hi Jian,
SELECT (test_json -> 'field1')::int4 FROM test_jsonb WHERE json_type
= 'object';
-ERROR: cannot cast jsonb string to type integer
+ERROR: unknown jsonb type: 1125096840
Thanks for the report! The reason is I return the address of a local variable.
jsonb_object_field_start(PG_FUNCTION_ARGS)
{
JsonbValue *v;
JsonbValue vbuf;
v = getKeyJsonValueFromContainer(&jb->root,
VARDATA_ANY(key),\
VARSIZE_ANY_EXHDR(key),
&vbuf);
PG_RETURN_POINTER(v);
}
Here the v points to vbuf which is a local variable in stack. I'm confused
that why it works on my local machine and also works in the most queries
in cfbot, the fix is below
v = getKeyJsonValueFromContainer(&jb->root,
VARDATA_ANY(key),\
VARSIZE_ANY_EXHDR(key),
NULL);
I will send an updated version soon.
--
