[HACKERS] create type- similar char
I create one new type with CREATE TYPE command.
for my type its INTERNALLENGTH is VARIABLE .
but I want to my type behavior similar to char and when I type this query:
CREATE TABLE tbl (col1 NEWTYPE);
then when I write this query, so it get an error for it's length:
insert into tbl values('dd');
its error is :
ERROR: value too long for type character(1)
but my NEWTYPE don't get this error and work similar to varchar.
how I can do it?
I check for char type the bpchar() function. when I work with char type and
want to insert one word longest one character so, bpchar() called.
but for my NEWTYPE don't call the newtype() function.
how can I correct this problem?
Re: [HACKERS] create type- similar char
Hello
I don't know where is a problem, but I can put a two advices
a) start by extending some known extension
b) look to source code, where and why a exception was raised. Verbose mode
can help
[pavel@localhost ~]$ psql postgres
psql (9.4devel)
Type help for help.
postgres=# \set VERBOSITY verbose
postgres=# SELECT 10/0;
ERROR: 22012: division by zero
LOCATION: int4div, int.c:719
postgres=#
Regards
Pavel
2014-03-16 14:41 GMT+01:00 Mohsen SM mohsensoodk...@gmail.com:
I create one new type with CREATE TYPE command.
for my type its INTERNALLENGTH is VARIABLE .
but I want to my type behavior similar to char and when I type this query:
CREATE TABLE tbl (col1 NEWTYPE);
then when I write this query, so it get an error for it's length:
insert into tbl values('dd');
its error is :
ERROR: value too long for type character(1)
but my NEWTYPE don't get this error and work similar to varchar.
how I can do it?
I check for char type the bpchar() function. when I work with char type
and want to insert one word longest one character so, bpchar() called.
but for my NEWTYPE don't call the newtype() function.
how can I correct this problem?
Re: [HACKERS] create type- similar char
Mohsen SM mohsensoodk...@gmail.com writes:
I create one new type with CREATE TYPE command.
for my type its INTERNALLENGTH is VARIABLE .
but I want to my type behavior similar to char and when I type this query:
CREATE TABLE tbl (col1 NEWTYPE);
then when I write this query, so it get an error for it's length:
insert into tbl values('dd');
its error is :
ERROR: value too long for type character(1)
but my NEWTYPE don't get this error and work similar to varchar.
how I can do it?
I check for char type the bpchar() function. when I work with char type and
want to insert one word longest one character so, bpchar() called.
but for my NEWTYPE don't call the newtype() function.
It sounds like you made a length coercion cast function, but didn't
actually declare a cast based on it. See CREATE CAST.
regards, tom lane
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[HACKERS] CREATE TYPE similar CHAR type
I want use CREATE TYPE to create one type similar to char. I want to when I create type, then my type behave similar to char: CREATE TABLE test (oneChar char); when I want insert one column with length1 to it, so it gets this error: ERROR: value too long for type character(1) I want my type behave similar this but it behaves similar varchar type.
Re: [HACKERS] CREATE TYPE similar CHAR type
On 6 March 2014 11:24, Mohsen SM mohsensoodk...@gmail.com wrote: I want use CREATE TYPE to create one type similar to char. I want to when I create type, then my type behave similar to char: CREATE TABLE test (oneChar char); when I want insert one column with length1 to it, so it gets this error: ERROR: value too long for type character(1) I want my type behave similar this but it behaves similar varchar type. If you did that, you'd have a char field padded out to fill up 10 megabytes-worth of characters. I doubt that's what you want. It's not clear what you want this for though. If you want an arbitrary number of characters, just use the text data type. -- Thom
Re: [HACKERS] CREATE TYPE similar CHAR type
mohsencs wrote I want use CREATE TYPE to create one type similar to char. I want to when I create type, then my type behave similar to char: CREATE TABLE test (oneChar char); when I want insert one column with length1 to it, so it gets this error: ERROR: value too long for type character(1) I want my type behave similar this but it behaves similar varchar type. If you can get over the need for using CREATE TYPE you'll find that using CREATE DOMAIN with a check constraint will probably meet your needs perfectly. David J. -- View this message in context: http://postgresql.1045698.n5.nabble.com/CREATE-TYPE-similar-CHAR-type-tp5794946p5794981.html Sent from the PostgreSQL - hackers mailing list archive at Nabble.com. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
