Re: [HACKERS] Jsonb: jbvBinary usage in the convertJsonbValue?

2014-06-18 Thread Andrew Dunstan


On 06/02/2014 11:38 AM, Andrew Dunstan wrote:


On 06/02/2014 10:22 AM, Andrew Dunstan wrote:


On 06/02/2014 10:02 AM, Robert Haas wrote:
On Thu, May 29, 2014 at 7:34 AM, Dmitry Dolgov 
9erthali...@gmail.com wrote:

I'm little confused by the convertJsonbValue functon at jsonb_utils.c
Maybe I misunderstood something, so I need help =)


if (IsAJsonbScalar(val) || val-type == jbvBinary)
 convertJsonbScalar(buffer, header, val);
As I can see, the convertJsonbScalar function is used for scalar 
and binary

jsonb values. But this function doesn't handle the jbvBinary type.

There definitely seems to be an oversight here of some kind. Either
convertJsonbValue() shouldn't be calling convertJsonbScalar() with an
object of type jbvBinary, or convertJsonbScalar() should know how to
handle that case.




Yes, I've just been looking at that. I think this is probably a 
hangover from when these routines were recast to some extent. Given 
that we're not seeing any errors from it, I'd be inclined to remove 
the the || val-type == jbvBinary part. One of the three call sites 
to convertJsonbValue asserts that this can't be true, and doing so 
doesn't result in a regression failure.


Peter and Teodor, comments?




Thinking about it a bit more, ISTM this should be ok, since we convert 
a JsonbValue to Jsonb in a depth-first recursive pattern. We should 
certainly add some comments along these lines to explain why the 
jbvbinary case shouldn't arise.




Nobody has commented further that I have noticed, so I have committed this.

cheers

andrew



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Re: [HACKERS] Jsonb: jbvBinary usage in the convertJsonbValue?

2014-06-02 Thread Robert Haas
On Thu, May 29, 2014 at 7:34 AM, Dmitry Dolgov 9erthali...@gmail.com wrote:
 I'm little confused by the convertJsonbValue functon at jsonb_utils.c
 Maybe I misunderstood something, so I need help =)

 if (IsAJsonbScalar(val) || val-type == jbvBinary)
 convertJsonbScalar(buffer, header, val);

 As I can see, the convertJsonbScalar function is used for scalar and binary
 jsonb values. But this function doesn't handle the jbvBinary type.

There definitely seems to be an oversight here of some kind.  Either
convertJsonbValue() shouldn't be calling convertJsonbScalar() with an
object of type jbvBinary, or convertJsonbScalar() should know how to
handle that case.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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Re: [HACKERS] Jsonb: jbvBinary usage in the convertJsonbValue?

2014-06-02 Thread Andrew Dunstan


On 06/02/2014 10:02 AM, Robert Haas wrote:

On Thu, May 29, 2014 at 7:34 AM, Dmitry Dolgov 9erthali...@gmail.com wrote:

I'm little confused by the convertJsonbValue functon at jsonb_utils.c
Maybe I misunderstood something, so I need help =)


if (IsAJsonbScalar(val) || val-type == jbvBinary)
 convertJsonbScalar(buffer, header, val);

As I can see, the convertJsonbScalar function is used for scalar and binary
jsonb values. But this function doesn't handle the jbvBinary type.

There definitely seems to be an oversight here of some kind.  Either
convertJsonbValue() shouldn't be calling convertJsonbScalar() with an
object of type jbvBinary, or convertJsonbScalar() should know how to
handle that case.




Yes, I've just been looking at that. I think this is probably a hangover 
from when these routines were recast to some extent. Given that we're 
not seeing any errors from it, I'd be inclined to remove the the || 
val-type == jbvBinary part. One of the three call sites to 
convertJsonbValue asserts that this can't be true, and doing so doesn't 
result in a regression failure.


Peter and Teodor, comments?

cheers

andrew


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Re: [HACKERS] Jsonb: jbvBinary usage in the convertJsonbValue?

2014-06-02 Thread Andrew Dunstan


On 06/02/2014 10:22 AM, Andrew Dunstan wrote:


On 06/02/2014 10:02 AM, Robert Haas wrote:
On Thu, May 29, 2014 at 7:34 AM, Dmitry Dolgov 
9erthali...@gmail.com wrote:

I'm little confused by the convertJsonbValue functon at jsonb_utils.c
Maybe I misunderstood something, so I need help =)


if (IsAJsonbScalar(val) || val-type == jbvBinary)
 convertJsonbScalar(buffer, header, val);
As I can see, the convertJsonbScalar function is used for scalar and 
binary

jsonb values. But this function doesn't handle the jbvBinary type.

There definitely seems to be an oversight here of some kind. Either
convertJsonbValue() shouldn't be calling convertJsonbScalar() with an
object of type jbvBinary, or convertJsonbScalar() should know how to
handle that case.




Yes, I've just been looking at that. I think this is probably a 
hangover from when these routines were recast to some extent. Given 
that we're not seeing any errors from it, I'd be inclined to remove 
the the || val-type == jbvBinary part. One of the three call sites 
to convertJsonbValue asserts that this can't be true, and doing so 
doesn't result in a regression failure.


Peter and Teodor, comments?




Thinking about it a bit more, ISTM this should be ok, since we convert a 
JsonbValue to Jsonb in a depth-first recursive pattern. We should 
certainly add some comments along these lines to explain why the 
jbvbinary case shouldn't arise.


cheers

andrew



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Re: [HACKERS] Jsonb: jbvBinary usage in the convertJsonbValue?

2014-06-02 Thread Peter Geoghegan
On Mon, Jun 2, 2014 at 7:22 AM, Andrew Dunstan and...@dunslane.net wrote:
 Yes, I've just been looking at that. I think this is probably a hangover
 from when these routines were recast to some extent. Given that we're not
 seeing any errors from it, I'd be inclined to remove the the || val-type
 == jbvBinary part. One of the three call sites to convertJsonbValue asserts
 that this can't be true, and doing so doesn't result in a regression
 failure.

Well, I guess the latter condition should be moved, since clearly the
jbvBinary case isn't handled within convertJsonbScalar(). It would be
mildly preferable to have a more accurate error message (the
convertJsonbValue() error) if that can't happen condition should
ever happen.

-- 
Peter Geoghegan


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