Re: XML/XPath issues: text/CDATA in XMLTABLE, XPath evaluated with wrong context

čt 28. 2. 2019 v 10:31 odesílatel Pavel Stehule <pavel.stehule@gmail.com>
napsal:

>
>
> čt 28. 2. 2019 v 9:58 odesílatel Ramanarayana <raam.soft@gmail.com>
> napsal:
>
>> Hi,
>>
>>         I have tested the three issues fixed in patch 001. Array Indexes
>> issue is still there.Running the following query returns ERROR: more
>> than one value returned by column XPath expression
>>
>> SELECT xmltable.*
>> FROM (SELECT data FROM xmldata) x,
>> LATERAL XMLTABLE('/ROWS/ROW'
>> PASSING data
>> COLUMNS
>> country_name text PATH 'COUNTRY_NAME/text()' NOT NULL,
>> size_text float PATH 'SIZE/text()',
>> size_text_1 float PATH 'SIZE/text()[1]',
>> size_text_2 float PATH 'SIZE/text()[2]',
>> "SIZE" float, size_xml xml PATH 'SIZE')
>>
>> The other two issues are resolved by this patch.
>>
>
I tested xmltable-xpath-result-processing-bugfix-6.patch

and it is working

postgres=# SELECT  xmltable.*
postgres-#    FROM (SELECT data FROM xmldata) x,
postgres-#         LATERAL XMLTABLE('/ROWS/ROW'
postgres(#                          PASSING data
postgres(#                          COLUMNS
postgres(#                                   country_name text PATH
'COUNTRY_NAME/text()' NOT NULL,
postgres(#                                   size_text float PATH
'SIZE/text()',
postgres(#                                   size_text_1 float PATH
'SIZE/text()[1]',
postgres(#                                   size_text_2 float PATH
'SIZE/text()[2]',
postgres(#                                   "SIZE" float, size_xml xml
PATH 'SIZE')  ;
┌──────────────┬───────────┬─────────────┬─────────────┬──────┬────────────────────────────┐

│ country_name │ size_text │ size_text_1 │ size_text_2 │ SIZE │
size_xml          │
╞══════════════╪═══════════╪═════════════╪═════════════╪══════╪════════════════════════════╡

│ Australia    │         ∅ │           ∅ │           ∅ │    ∅ │
∅                          │
│ China        │         ∅ │           ∅ │           ∅ │    ∅ │
∅                          │
│ HongKong     │         ∅ │           ∅ │           ∅ │    ∅ │
∅                          │
│ India        │         ∅ │           ∅ │           ∅ │    ∅ │
∅                          │
│ Japan        │         ∅ │           ∅ │           ∅ │    ∅ │
∅                          │
│ Singapore    │       791 │         791 │           ∅ │  791 │ <SIZE
unit="km">791</SIZE> │
└──────────────┴───────────┴─────────────┴─────────────┴──────┴────────────────────────────┘

(6 rows)

Regards

Pavel


>
> what patches you are used?
>
> Regards
>
> Pavel
>
>
>> --
>> Cheers
>> Ram 4.0
>>
>