Re: [pgadmin-hackers] Re: Server side cursor limitations for on demand loading of data in query tool [RM2137] [pgAdmin4]

yes i'm working on that only :)

--
*Harshal Dhumal*
*Sr. Software Engineer*

EnterpriseDB India: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

On Mon, Jun 26, 2017 at 5:22 PM, Dave Page <dpage(at)pgadmin(dot)org> wrote:

> I'm sorry, it needs rebasing again. If you can do it quickly, I'll
> make sure it's the next patch I work on in that area.
>
> Thanks.
>
> On Mon, Jun 26, 2017 at 5:16 AM, Harshal Dhumal
> <harshal(dot)dhumal(at)enterprisedb(dot)com> wrote:
> > Hi Dave,
> >
> > Please find updated rebased patch for RM2137
> >
> > On Fri, Jun 23, 2017 at 9:00 PM, Dave Page <dpage(at)pgadmin(dot)org> wrote:
> >>
> >> Hi Harshal,
> >>
> >> When can we expect an updated version of this patch? I think it's
> >> important to get this into the next release.
> >>
> >> Thanks!
> >>
> >> On Fri, Jun 16, 2017 at 10:55 AM, Dave Page <dpage(at)pgadmin(dot)org> wrote:
> >> > Hi,
> >> >
> >> > That's better - the failures are far less random now :-). I got the
> >> > following two though, on both PG and EPAS 9.5:
> >> >
> >> > ============================================================
> ==========
> >> > ERROR: runTest
> >> > (pgadmin.feature_tests.query_tool_tests.QueryToolFeatureTest)
> >> > Query tool feature test
> >> > ------------------------------------------------------------
> ----------
> >> > Traceback (most recent call last):
> >> > File
> >> > "/Users/dpage/git/pgadmin4/web/pgadmin/feature_tests/
> query_tool_tests.py",
> >> > line 95, in runTest
> >> > self._query_tool_explain_analyze_buffers()
> >> > File
> >> > "/Users/dpage/git/pgadmin4/web/pgadmin/feature_tests/
> query_tool_tests.py",
> >> > line 443, in _query_tool_explain_analyze_buffers
> >> > canvas.find_element_by_xpath("//*[contains(string(), 'Shared Read
> >> > Blocks')]")
> >> > File
> >> > "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webelement.py",
> >> > line 260, in find_element_by_xpath
> >> > return self.find_element(by=By.XPATH, value=xpath)
> >> > File
> >> > "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webelement.py",
> >> > line 508, in find_element
> >> > {"using": by, "value": value})['value']
> >> > File
> >> > "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webelement.py",
> >> > line 491, in _execute
> >> > return self._parent.execute(command, params)
> >> > File
> >> > "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webdriver.py",
> >> > line 238, in execute
> >> > self.error_handler.check_response(response)
> >> > File
> >> > "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/errorhandler.py",
> >> > line 193, in check_response
> >> > raise exception_class(message, screen, stacktrace)
> >> > NoSuchElementException: Message: no such element: Unable to locate
> >> > element: {"method":"xpath","selector":"//*[contains(string(), 'Shared
> >> > Read Blocks')]"}
> >> > (Session info: chrome=58.0.3029.110)
> >> > (Driver info: chromedriver=2.29.461585
> >> > (0be2cd95f834e9ee7c46bcc7cf405b483f5ae83b),platform=Mac OS X 10.12.3
> >> > x86_64)
> >> >
> >> >
> >> > ============================================================
> ==========
> >> > ERROR: runTest
> >> > (pgadmin.feature_tests.view_data_dml_queries.CheckForViewDataTest)
> >> > Validate Insert, Update operations in View data with given test data
> >> > ------------------------------------------------------------
> ----------
> >> > Traceback (most recent call last):
> >> > File
> >> > "/Users/dpage/git/pgadmin4/web/pgadmin/feature_tests/
> view_data_dml_queries.py",
> >> > line 104, in runTest
> >> > self._add_row()
> >> > File
> >> > "/Users/dpage/git/pgadmin4/web/pgadmin/feature_tests/
> view_data_dml_queries.py",
> >> > line 255, in _add_row
> >> > self._update_cell(cell_xpath, config_data[str(idx)])
> >> > File
> >> > "/Users/dpage/git/pgadmin4/web/pgadmin/feature_tests/
> view_data_dml_queries.py",
> >> > line 164, in _update_cell
> >> > cell_el = self.page.find_by_xpath(xpath)
> >> > File
> >> > "/Users/dpage/git/pgadmin4/web/regression/feature_utils/
> pgadmin_page.py",
> >> > line 122, in find_by_xpath
> >> > return self.wait_for_element(lambda driver:
> >> > driver.find_element_by_xpath(xpath))
> >> > File
> >> > "/Users/dpage/git/pgadmin4/web/regression/feature_utils/
> pgadmin_page.py",
> >> > line 205, in wait_for_element
> >> > return self._wait_for("element to exist", element_if_it_exists)
> >> > File
> >> > "/Users/dpage/git/pgadmin4/web/regression/feature_utils/
> pgadmin_page.py",
> >> > line 255, in _wait_for
> >> > "Timed out waiting for " + waiting_for_message)
> >> > File
> >> > "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/support/wait.py",
> >> > line 71, in until
> >> > value = method(self._driver)
> >> > File
> >> > "/Users/dpage/git/pgadmin4/web/regression/feature_utils/
> pgadmin_page.py",
> >> > line 200, in element_if_it_exists
> >> > if element.is_displayed() and element.is_enabled():
> >> > File
> >> > "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webelement.py",
> >> > line 358, in is_displayed
> >> > return self._execute(Command.IS_ELEMENT_DISPLAYED)['value']
> >> > File
> >> > "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webelement.py",
> >> > line 491, in _execute
> >> > return self._parent.execute(command, params)
> >> > File
> >> > "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webdriver.py",
> >> > line 238, in execute
> >> > self.error_handler.check_response(response)
> >> > File
> >> > "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/errorhandler.py",
> >> > line 193, in check_response
> >> > raise exception_class(message, screen, stacktrace)
> >> > StaleElementReferenceException: Message: stale element reference:
> >> > element is not attached to the page document
> >> > (Session info: chrome=58.0.3029.110)
> >> > (Driver info: chromedriver=2.29.461585
> >> > (0be2cd95f834e9ee7c46bcc7cf405b483f5ae83b),platform=Mac OS X 10.12.3
> >> > x86_64)
> >> >
> >
> >
> > I checked my feature test cases for any database server version/type (PG,
> > EPAS) specific failures and I found that test cases are working fine on
> all
> > of them. However I have slightly modified test case to overcome above
> > mentioned failures.
> >
> >>
> >> >
> >> > On 9.4 everything passes. On 9.6, I get one failure:
> >> >
> >> > ============================================================
> ==========
> >> > FAIL: runTest
> >> > (pgadmin.feature_tests.view_data_dml_queries.CheckForViewDataTest)
> >> > Validate Insert, Update operations in View data with given test data
> >> > ------------------------------------------------------------
> ----------
> >> > Traceback (most recent call last):
> >> > File
> >> > "/Users/dpage/git/pgadmin4/web/pgadmin/feature_tests/
> view_data_dml_queries.py",
> >> > line 105, in runTest
> >> > self._verify_row_data(True)
> >> > File
> >> > "/Users/dpage/git/pgadmin4/web/pgadmin/feature_tests/
> view_data_dml_queries.py",
> >> > line 282, in _verify_row_data
> >> > self.assertEquals(cells[idx], config_data[str(idx)][1])
> >> > AssertionError: u'[default]' != u'1'
> >> > - [default]
> >> > + 1
> >> >
> >
> > I guess Khushboo has fixed this recently.
> >
> >
> >>
> >> > Screenshots attached.
> >> >
> >> > On Fri, Jun 16, 2017 at 7:54 AM, Harshal Dhumal
> >> > <harshal(dot)dhumal(at)enterprisedb(dot)com> wrote:
> >> >> Hi Dave,
> >> >>
> >> >> Please find attached patch where I have added timeout of 2 seconds
> >> >> before
> >> >> selecting object menu in connect to server function.
> >> >>
> >> >> Note: Apply this patch on top of previous patch for on demand loading
> >> >> feature.
> >> >>
> >> >>
> >> >> --
> >> >> Harshal Dhumal
> >> >> Sr. Software Engineer
> >> >>
> >> >> EnterpriseDB India: http://www.enterprisedb.com
> >> >> The Enterprise PostgreSQL Company
> >> >>
> >> >> On Fri, Jun 16, 2017 at 2:25 AM, Dave Page <dpage(at)pgadmin(dot)org>
> wrote:
> >> >>>
> >> >>> Sounds good, thanks.
> >> >>>
> >> >>> On Thu, Jun 15, 2017 at 9:54 PM, Harshal Dhumal
> >> >>> <harshal(dot)dhumal(at)enterprisedb(dot)com> wrote:
> >> >>> > Hi
> >> >>> >
> >> >>> > On Fri, Jun 16, 2017 at 2:07 AM, Dave Page <dpage(at)pgadmin(dot)org>
> >> >>> > wrote:
> >> >>> >>
> >> >>> >> Hi
> >> >>> >>
> >> >>> >> On Thu, Jun 15, 2017 at 9:30 PM, Harshal Dhumal
> >> >>> >> <harshal(dot)dhumal(at)enterprisedb(dot)com> wrote:
> >> >>> >> > Hi Dave,
> >> >>> >> >
> >> >>> >> > Please find attached updated patch.
> >> >>> >> >
> >> >>> >> > On Thu, Jun 15, 2017 at 3:58 PM, Dave Page <dpage(at)pgadmin(dot)org>
> >> >>> >> > wrote:
> >> >>> >> >>
> >> >>> >> >> Hi
> >> >>> >> >>
> >> >>> >> >> On Wed, Jun 14, 2017 at 11:36 PM, Harshal Dhumal
> >> >>> >> >> <harshal(dot)dhumal(at)enterprisedb(dot)com> wrote:
> >> >>> >> >>>
> >> >>> >> >>> Hi Dave,
> >> >>> >> >>>
> >> >>> >> >>> Please find rebased patch for RM2137.
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> Looking very good. The only issues I see are:
> >> >>> >> >>
> >> >>> >> >> - The row headers should auto-size such that they can display
> >> >>> >> >> the
> >> >>> >> >> row
> >> >>> >> >> numbers if the last row was displayed. E.g. if there are 12345
> >> >>> >> >> rows
> >> >>> >> >> in
> >> >>> >> >> total, then the row header should be sized to display 5
> digits.
> >> >>> >> >>
> >> >>> >> > Fixed.
> >> >>> >> >
> >> >>> >> >
> >> >>> >> >>
> >> >>> >> >> - The tests are comprehensive, which is awesome. However,
> every
> >> >>> >> >> time
> >> >>> >> >> I
> >> >>> >> >> ran
> >> >>> >> >> them, at least one of the feature tests failed. Unfortunately,
> >> >>> >> >> it
> >> >>> >> >> was a
> >> >>> >> >> different one each time. In the last two runs, I got:
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> ============================================================
> ==========
> >> >>> >> >> ERROR: runTest
> >> >>> >> >> (pgadmin.feature_tests.query_tool_tests.QueryToolFeatureTest)
> >> >>> >> >> Query tool feature test
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> ------------------------------------------------------------
> ----------
> >> >>> >> >> Traceback (most recent call last):
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/git/pgadmin4/web/regression/feature_utils/
> base_feature_test.py",
> >> >>> >> >> line 40, in setUp
> >> >>> >> >> self.before()
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/git/pgadmin4/web/pgadmin/feature_tests/
> query_tool_tests.py",
> >> >>> >> >> line 40, in before
> >> >>> >> >> self._connects_to_server()
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/git/pgadmin4/web/pgadmin/feature_tests/
> query_tool_tests.py",
> >> >>> >> >> line 144, in _connects_to_server
> >> >>> >> >> self.page.driver.find_element_by_link_text("Create"))\
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webdriver.py",
> >> >>> >> >> line 319, in find_element_by_link_text
> >> >>> >> >> return self.find_element(by=By.LINK_TEXT,
> value=link_text)
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webdriver.py",
> >> >>> >> >> line 756, in find_element
> >> >>> >> >> 'value': value})['value']
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webdriver.py",
> >> >>> >> >> line 238, in execute
> >> >>> >> >> self.error_handler.check_response(response)
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/errorhandler.py",
> >> >>> >> >> line 193, in check_response
> >> >>> >> >> raise exception_class(message, screen, stacktrace)
> >> >>> >> >> NoSuchElementException: Message: no such element: Unable to
> >> >>> >> >> locate
> >> >>> >> >> element: {"method":"link text","selector":"Create"}
> >> >>> >> >> (Session info: chrome=58.0.3029.110)
> >> >>> >> >> (Driver info: chromedriver=2.29.461585
> >> >>> >> >> (0be2cd95f834e9ee7c46bcc7cf405b483f5ae83b),platform=Mac OS X
> >> >>> >> >> 10.12.3
> >> >>> >> >> x86_64)
> >> >>> >> >>
> >> >>> >> > I checked code from _connects_to_server function which is
> common
> >> >>> >> > in
> >> >>> >> > all
> >> >>> >> > features test cases. I didn't find anything wrong with this. If
> >> >>> >> > there
> >> >>> >> > is
> >> >>> >> > a
> >> >>> >> > bug in this function then all feature test must fail.
> >> >>> >> > Let me know if you are getting failure consistently in
> >> >>> >> > _connects_to_server
> >> >>> >> > function.
> >> >>> >>
> >> >>> >> I wondered if that one is a race condition. Do we need a short
> >> >>> >> delay
> >> >>> >> before clicking the Object menu? I have seen this occasionally
> >> >>> >> before.
> >> >>> >
> >> >>> >
> >> >>> > OK. In that case let's try putting 1-2 second delay and observer
> >> >>> > behaviour.
> >> >>> > I'll send separate patch for this tomorrow as this is not related
> to
> >> >>> > on
> >> >>> > demand query result feature or its test cases.
> >> >>> >
> >> >>> >>
> >> >>> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> ============================================================
> ==========
> >> >>> >> >> ERROR: runTest
> >> >>> >> >> (pgadmin.feature_tests.query_tool_tests.QueryToolFeatureTest)
> >> >>> >> >> Query tool feature test
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> ------------------------------------------------------------
> ----------
> >> >>> >> >> Traceback (most recent call last):
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/git/pgadmin4/web/pgadmin/feature_tests/
> query_tool_tests.py",
> >> >>> >> >> line 119, in runTest
> >> >>> >> >> self._query_tool_auto_rollback_enabled()
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/git/pgadmin4/web/pgadmin/feature_tests/
> query_tool_tests.py",
> >> >>> >> >> line 697, in _query_tool_auto_rollback_enabled
> >> >>> >> >> '//div[contains(@class, "sql-editor-message") and
> >> >>> >> >> contains(string(),
> >> >>> >> >> "COMMIT")]'
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webdriver.py",
> >> >>> >> >> line 295, in find_element_by_xpath
> >> >>> >> >> return self.find_element(by=By.XPATH, value=xpath)
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webdriver.py",
> >> >>> >> >> line 756, in find_element
> >> >>> >> >> 'value': value})['value']
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/webdriver.py",
> >> >>> >> >> line 238, in execute
> >> >>> >> >> self.error_handler.check_response(response)
> >> >>> >> >> File
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >>
> >> >>> >> >> "/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-
> packages/selenium/webdriver/remote/errorhandler.py",
> >> >>> >> >> line 193, in check_response
> >> >>> >> >> raise exception_class(message, screen, stacktrace)
> >> >>> >> >> NoSuchElementException: Message: no such element: Unable to
> >> >>> >> >> locate
> >> >>> >> >> element: {"method":"xpath","selector":"//div[contains(@class,
> >> >>> >> >> "sql-editor-message") and contains(string(), "COMMIT")]"}
> >> >>> >> >> (Session info: chrome=58.0.3029.110)
> >> >>> >> >> (Driver info: chromedriver=2.29.461585
> >> >>> >> >> (0be2cd95f834e9ee7c46bcc7cf405b483f5ae83b),platform=Mac OS X
> >> >>> >> >> 10.12.3
> >> >>> >> >> x86_64)
> >> >>> >> >>
> >> >>> >> > I have updated Auto rollback enabled test in this patch.
> >> >>> >> >
> >> >>> >> >>
> >> >>> >> >> Relevant screenshots attached.
> >> >>> >> >>
> >> >>> >> >> - Can you tidy up the regression output a little please?
> Instead
> >> >>> >> >> of:
> >> >>> >> >>
> >> >>> >> >> -------
> >> >>> >> >> runTest
> >> >>> >> >> (pgadmin.feature_tests.query_tool_tests.QueryToolFeatureTest)
> >> >>> >> >> Query tool feature test ... On demand result set on
> scrolling...
> >> >>> >> >> OK.
> >> >>> >> >>
> >> >>> >> >> On demand result set on grid select all...
> >> >>> >> >> OK.
> >> >>> >> >>
> >> >>> >> >> On demand result set on column select all...
> >> >>> >> >> OK.
> >> >>> >> >>
> >> >>> >> >> Explain query...
> >> >>> >> >> OK.
> >> >>> >> >>
> >> >>> >> >> Explain query with verbose...
> >> >>> >> >> OK.
> >> >>> >> >>
> >> >>> >> >> Explain query with costs...
> >> >>> >> >> OK.
> >> >>> >> >>
> >> >>> >> >> Explain analyze query...
> >> >>> >> >> OK.
> >> >>> >> >>
> >> >>> >> >> Explain analyze query with buffers...
> >> >>> >> >> OK.
> >> >>> >> >>
> >> >>> >> >> Explain analyze query with timing...
> >> >>> >> >> OK.
> >> >>> >> >>
> >> >>> >> >> Auto commit disabled...
> >> >>> >> >> OK.
> >> >>> >> >>
> >> >>> >> >> Auto commit enabled...
> >> >>> >> >> OK.
> >> >>> >> >>
> >> >>> >> >> Auto rollback enabled...
> >> >>> >> >> ERROR
> >> >>> >> >> -------
> >> >>> >> >>
> >> >>> >> >> Something like:
> >> >>> >> >>
> >> >>> >> >> -------
> >> >>> >> >> runTest
> >> >>> >> >> (pgadmin.feature_tests.query_tool_tests.QueryToolFeatureTest)
> >> >>> >> >> Query tool feature test ...
> >> >>> >> >> On demand result set on scrolling... OK.
> >> >>> >> >> On demand result set on grid select all... OK.
> >> >>> >> >> On demand result set on column select all... OK.
> >> >>> >> >> Explain query... OK.
> >> >>> >> >> Explain query with verbose... OK.
> >> >>> >> >> Explain query with costs... OK.
> >> >>> >> >> Explain analyze query... OK.
> >> >>> >> >> Explain analyze query with buffers... OK.
> >> >>> >> >> Explain analyze query with timing... OK.
> >> >>> >> >> Auto commit disabled... OK.
> >> >>> >> >> Auto commit enabled... OK.
> >> >>> >> >> Auto rollback enabled... ERROR
> >> >>> >> >> --------
> >> >>> >> >>
> >> >>> >> > Fixed.
> >> >>> >> >
> >> >>> >> >
> >> >>> >> >>
> >> >>> >> >> Thanks!
> >> >>> >> >>
> >> >>> >> >> --
> >> >>> >> >> Dave Page
> >> >>> >> >> Blog: http://pgsnake.blogspot.com
> >> >>> >> >> Twitter: @pgsnake
> >> >>> >> >>
> >> >>> >> >> EnterpriseDB UK: http://www.enterprisedb.com
> >> >>> >> >> The Enterprise PostgreSQL Company
> >> >>> >> >
> >> >>> >> >
> >> >>> >>
> >> >>> >>
> >> >>> >>
> >> >>> >> --
> >> >>> >> Dave Page
> >> >>> >> Blog: http://pgsnake.blogspot.com
> >> >>> >> Twitter: @pgsnake
> >> >>> >>
> >> >>> >> EnterpriseDB UK: http://www.enterprisedb.com
> >> >>> >> The Enterprise PostgreSQL Company
> >> >>> >
> >> >>> >
> >> >>>
> >> >>>
> >> >>>
> >> >>> --
> >> >>> Dave Page
> >> >>> Blog: http://pgsnake.blogspot.com
> >> >>> Twitter: @pgsnake
> >> >>>
> >> >>> EnterpriseDB UK: http://www.enterprisedb.com
> >> >>> The Enterprise PostgreSQL Company
> >> >>
> >> >>
> >> >
> >> >
> >> >
> >> > --
> >> > Dave Page
> >> > Blog: http://pgsnake.blogspot.com
> >> > Twitter: @pgsnake
> >> >
> >> > EnterpriseDB UK: http://www.enterprisedb.com
> >> > The Enterprise PostgreSQL Company
> >>
> >>
> >>
> >> --
> >> Dave Page
> >> Blog: http://pgsnake.blogspot.com
> >> Twitter: @pgsnake
> >>
> >> EnterpriseDB UK: http://www.enterprisedb.com
> >> The Enterprise PostgreSQL Company
> >
> >
>
>
>
> --
> Dave Page
> Blog: http://pgsnake.blogspot.com
> Twitter: @pgsnake
>
> EnterpriseDB UK: http://www.enterprisedb.com
> The Enterprise PostgreSQL Company
>