Re: XML/XPath issues: text/CDATA in XMLTABLE, XPath evaluated withwrong context
| От | Pavel Stehule |
|---|---|
| Тема | Re: XML/XPath issues: text/CDATA in XMLTABLE, XPath evaluated withwrong context |
| Дата | |
| Msg-id | CAFj8pRAeBSyUQ4LgXG5qEtDyBrhRdcs4yyapdDAd7fjjNXaLXw@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: XML/XPath issues: text/CDATA in XMLTABLE, XPath evaluated withwrong context (Pavel Stehule <pavel.stehule@gmail.com>) |
| Ответы |
Re: XML/XPath issues: text/CDATA in XMLTABLE, XPath evaluated withwrong context
|
| Список | pgsql-hackers |
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:The other two issues are resolved by this patch.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 expressionSELECT 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')
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)
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?RegardsPavel--Cheers
Ram 4.0
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