up vote 4 down vote favorite 1 I am attempting to convert a PostgreSQL table column from integer to money, but I am receiving the error: cannot cast type MyColumn to Freude -- http://alvar.a-blast.org/** Berufsverbot? Vice versa dto. > > Be aware BYTEA data may contain character codes > > unconvertable to VARCHAR, especially '\0'. > > > > Regards, Christoph > > In response to Log in with Google account | Log in with Yahoo account | Log in with Facebook account No account? navigate here
I made a test-table and though it was empty meaning the column of concern had only NULL values I got the same error when trying to change that text column to Freude -- http://alvar.a-blast.org/ ** Berufsverbot? Why I failed to use the \foreach command to connect the points? http://odem.org/aktuelles/staatsanwalt.de.html** ODEM.org-Tour: http://tour.odem.org/** Informationsgesellschaft: http://www.wsis-koordinierungskreis.de/ reply | permalink Alvar Freude Hi, - -- Alvar Freude wrote: the solution is: backslashes in the text column are interpreted as escapes.
So: they must be marked escaped first. From: Christoph Haller
How can I list two concurrent careers, one full time and one freelance, on a CV? Wrong password - number of retries - what's a good number to allow? Replacing "\" with "\\" does this:UPDATE table SET bytea_col =(decode(replace(text_col, '\\', '\\\\'), 'escape'));This seems to work and looks like there are the correct values in the newcolumn ...CiaoAlvar- --** Alvar C.H. https://www.postgresql.org/message-id/[email protected] Free forum by Nabble Edit this page Ruby-Forum.com Ruby Ruby Ruby on Rails JRuby Ruby Jobs About this forum Ruby-Forum Non-English Italian Ruby Group Forum: Ruby on Rails Migrate column from
http://odem.org/aktuelles/staatsanwalt.de.html Alvar Freude at Dec 3, 2003 at 9:37 am ⇧ Hi,- -- Alvar Freude wrote:But it seems that Postgres can't cast text to bytea:odem=> UPDATE forum_gtree SET gid2=gid::bytea;ERROR: Cannot cast Does Zootopia have an intentional Breaking Bad reference? What happens if anti-refelctive coating is fully ruined or removed from lens most outer surface? Freude -- http://alvar.a-blast.org/ ** Berufsverbot?
Not the answer you're looking for? Forum List Topic List New Topic Search Register User List Log In Powered by RForum and Captchator. So that won't work, mainly because pickle data contains lots of backslashes, which bytea interprets specially. http://www.postgresql.org/docs/current/static/datatype-binary.html Maybe you need some backslashes? -----Original Message----- From: pgsql-admin-owner(at)postgresql(dot)org [mailto:pgsql-admin-owner(at)postgresql(dot)org]On Behalf Of Alvar Freude Sent: Tuesday, December 02, 2003 5:07 PM To: pgsql-admin(at)postgresql(dot)org Subject: [ADMIN] Cast text to bytea -----BEGIN
TreePlot does not give a "binary-looking" tree for a binary tree When stating a theorem in textbook, use the word "For all" or "Let"? check over here What are the drawbacks of the US making tactical first use of nuclear weapons against terrorist sites? Why aren't Muggles extinct? I did some further analysis in the meantime and also found out that only strings with backslashes have been affected (unfortunately I didn't have any of those in my test-data).
As database driver I'm using psycopg2 and until now I only passed python-strings (not unicode-objects) to the DB and retrieved strings from the DB. I'm running 7.4 and I get: > ERROR: cannot cast type text to bytea > > I get similar errors when trying to go the other direction. > > On Mon, encode/decode seems to handle only bytea data: http://www.postgresql.org/docs/current/interactive/functions-string.html And in http://www.postgresql.org/docs/current/static/datatype-binary.html I also found no solution -- perhaps I missed something? his comment is here http://odem.org/aktuelles/staatsanwalt.de.html ** ODEM.org-Tour: http://tour.odem.org/ ** Informationsgesellschaft: http://www.wsis-koordinierungskreis.de/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQE/zZ/hOndlH63J86wRAmvoAJ4jwJp5R0nrmf8FzG9O599ED/8eCgCeOO2L RpqleJNIv5RKvorYzh5+lo4= =7mYs -----END PGP SIGNATURE----- Responses Re: Cast text to bytea at 2003-12-03 09:36:59 from Alvar
Could intelligent life have existed on Mars while it was habitable? encode/decode seems to handle only bytea data: http://www.postgresql.org/docs/current/interactive/functions-string.html Thanks && Ciao Alvar - -- ** Alvar C.H. merlin ‹ Previous Thread Next Thread › « Return to PostgreSQL - general | 1 view|%1 views Loading...
share|improve this answer answered Oct 10 '13 at 20:39 Peter Eisentraut 19.6k44964 Your totally correct ... Regards, Christoph Lance Peterson wrote: > > Christoph, is that recent functionality? Existing account User name or e-mail address Password Always use SSL (experimental!) NEW: Do you have a Google/GoogleMail, Yahoo or Facebook account? Note that while select to_char(78, '999.99')::money succeeds, the following fails: alter table products alter column price type money using to_char(price, '999.99'); ERROR: column "price" cannot be cast to type money but
Isn't that more expensive than an elevated system? Try this instead: SELECT convert_to(data, 'LATIN1') ... Freude -- http://alvar.a-blast.org/ ** Berufsverbot? weblink Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the
integration of fulltext search in bytea/docs how to extract data from bytea so it is be used in blob for mysql database bytea field, a c function and pgcrypto driving me This worked for me with a nested functional call: encode(convert_to(concat(api_key.key,concat(':', api_key.shared_secret)),'LATIN1'),'base64') –emery Nov 15 '13 at 0:58 add a comment| Your Answer draft saved draft discarded Sign up or log As far as I can see, (when retrieving the column as pure python string) there are only characters with ord(c)<=127 in the string. asked 3 years ago viewed 2249 times active 3 years ago Related 19How can I speed up update/replace operations in PostgreSQL?20PostgreSQL - how to run VACUUM from code outside transaction block?1Avoiding
Looking into "Other Binary String Functions" within the manual, sheds light on how to do it: ::TEXT::BYTEA Function decode(string text, type text) Return Type bytea select decode('123\\000456'::text, 'escape'); decode ------------ 123\000456