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

čt 28. 2. 2019 v 10:31 odesílatel Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
napsal:

>
>
> čt 28. 2. 2019 v 9:58 odesílatel Ramanarayana <raam(dot)soft(at)gmail(dot)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
>>
>