Error Function Yeartimestamp Without Timezone Does Not Exist
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4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Getting error “function week(timestamp without time zone) does not exist” (updated) up vote 0 down vote favorite I was following this example How do I change the records being displayed on the page with buttons on to_char postgres the page (RoR) and managed to get the Daily filter working but when trying to set it up for the Weekly filter I get the error PG::Error: ERROR: function week(timestamp without time zone) does not exist I figured the WEEK function should work automatically as the DATE function did but that's not the case. model def self.popularToday reorder('votes desc').find_with_reputation(:votes, :all, { :conditions => ["DATE(microposts.created_at) = DATE(NOW())"]}) end def self.popularWeekly reorder('votes desc').find_with_reputation(:votes, :all, { :conditions => ["WEEK(microposts.created_at) = WEEK(NOW())"]}) end index.html.erb
controller when "daily" Kaminari.paginate_array(Micropost.popularToday).page(params[:page]).per(25) when "weekly" Kaminari.paginate_array(Micropost.popularWeekly).page(params[:page]).per(25) sql date ruby-on-rails-4 share|improve this question edited Apr 5 '14 at 4:30 asked Apr 5 '14 at 3:32 heartmo 334314 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted You need: "SELECT EXTRACT(WEEK FROM TIMESTAMP microposts.created_at)" This will retrieve the week number based on the created at timestamp in postgres. Documentation: http://www.postgresql.org/docshere for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and date_trunc redshift policies of this site About Us Learn more about Stack Overflow the
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company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes http://stackoverflow.com/questions/22876255/getting-error-function-weektimestamp-without-time-zone-does-not-exist-updat a minute: Sign up How to substract timestamp without timezone in PostgreSQL up vote 1 down vote favorite I'm currently using PostgreSQL 8.4 and need to substract from now() date on day. What I tried is now() - 1 and it didn't work. Although that page said that we could use operator - to perform operations on date. More preciseli I http://stackoverflow.com/questions/27479808/how-to-substract-timestamp-without-timezone-in-postgresql recieved ERROR: operator does not exist: timestamp with time zone - integer Any ideas? sql postgresql date share|improve this question asked Dec 15 '14 at 8:14 St.Antario 5,63461663 Unrelated, but: 8.4 is really old and no longer maintained. You should plan an upgrade to 9.3 (or even 9.4) as soon as possible. –a_horse_with_no_name Dec 15 '14 at 8:53 @a_horse_with_no_name You're absolutely right. But these are our production needs to use that version. We just don't have time to migrate to later versions. –St.Antario Dec 15 '14 at 9:02 @a_horse_with_no_name BTW, is such a migration gonna be painful? –St.Antario Dec 15 '14 at 9:03 Probably not that painful. The migration from 8.3 to 8.4 probably was more "painful" because of the stricter datatype checking in 8.4 But apart from the changed bytea wire encoding I don't recall any major differences (8.4 is just too long ago...) –a_horse_with_no_name Dec 15 '14 at 9:05 You can subtract an integer from a DATE, but not from a TIMESTAMP. Check the manual, it's all there: postgresql.org/docs/8.4
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that make connections all over the world. Join today Download & Extend Drupal Core Distributions Modules Themes CalendarIssues Undefined function: 7 ERROR: function datetime(date) does not exist ... Closed (fixed)Project:CalendarVersion:7.x-2.0-alpha1Component:CodePriority:NormalCategory:Bug reportAssigned:UnassignedReporter:hubScrappyCreated:July 4, 2011 - 19:52Updated:November 24, 2011 - 12:38 Log in or register to update this issue Get this on my calendar pages after upgrading: Debug: 'Exception: SQLSTATE[42883]: Undefined function: 7 ERROR: function datetime(date) does not exist LINE 5: WHERE (( (node.status = \'1\') )AND( (TO_CHAR(datetime(TO_DATE... ^ HINT: No function matches the given name and argument types. You might need to add explicit type casts.' in views_plugin_query_default->execute() (line 1380 of /usr/local/www/d_admin/www01.seniorsinfo.net/www/sites/all/modules/views/plugins/views_plugin_query_default.inc). This is with a PostgreSQL 9.0.x backend, but I've also checked with a PostgreSQL 8.4 backend, and there is no 'datetime(date)' function there either ... mysql function not available on postgresql, maybe? Comments Comment #1 jucado CreditAttribution: jucado commented July 7, 2011 at 8:38pm I have the same problem. I have installed PostgreSQL 8.4.7 Log in or register to post comments Comment #2 hynnot CreditAttribution: hynnot commented July 11, 2011 at 10:42am I have the same problem with PostgreSQL. Log in or register to post comments Comment #3 hubScrappy CreditAttribution: hubScrappy commented July 12, 2011 at 2:27am Got it ... its not the calendar module, or, rather, not directly ... I suspect that the calendar module is using some feature of the Date module that is in the -dev release, but not the -alpha3 one ... I just uninstalled it all (Calendar/Date), installed the -dev version of Date, then re-enabled Calendar, and now my Calendars work great again ... Not sure why this is only affecting PostgreSQL users though, since, my initial searching was to see if I could find a datetime() function in MySQL (to see if it was PostgreSQL only), and I can't find on