Re: Cloning schemas

On 07/02/2018 06:57 AM, Łukasz Jarych wrote:
> Hi,
> 
> "
> Strange. "audit_sq" looks like an invalid sequence table. I went 
> here,https://www.postgresql.org/docs/9.6/static/sql-createsequence.html, 
> and checked all the way back to version 7.1 and "maxvalue" has been a 
> column since back then.

What version of Postgres are you actually doing the cloning in?

Per Tom's post:

https://www.postgresql.org/docs/10/static/release-10.html

"
Move sequences' metadata fields into a new pg_sequence system catalog 
(Peter Eisentraut)

...

A sequence relation now stores only the fields that can be modified by 
nextval(), that is last_value, log_cnt, and is_called.

...

The main incompatibility introduced by this change is that selecting 
from a sequence relation now returns only the three fields named above. 
To obtain the sequence's other properties, applications must look into 
pg_sequence. The new system view pg_sequences can also be used for this 
purpose; it provides column names that are more compatible with existing 
code.
"

> 
> Maybe skip that table for now? It even says the last value is 1. You 
> should also check the other sequence tables. You can get them by doing:
> 
> select * from information_schema.sequences;"
> 
> Result of select:
> 
> image.png
> 
> Are you sure that I can skip " audit_sq" seq?
> 
> I wrote here because i am newbie and i can not update this. Hope for 
> your help Guys.
> 
> Best,
> Jacek
> 
> 
> 
> 
> 
> 
> 
> pon., 2 lip 2018 o 15:30 Tom Lane <tgl@sss.pgh.pa.us 
> <mailto:tgl@sss.pgh.pa.us>> napisał(a):
> 
>     =?UTF-8?Q?=C5=81ukasz_Jarych?= <jaryszek@gmail.com
>     <mailto:jaryszek@gmail.com>> writes:
>      > I am trying to use :
> 
>      > "select * from clone_schema('public','Version8',true) but i am
>     getting
>      > error:
> 
>      > "Column "max_value" does not exist.
>      > LINE 1: SELECT last_value, max_value, start_value, increment_by,
>     min...
>      > HINT: Maybe you wanted to point to column " "audit_sq.last_value"?
>      > QUERY: SELECT last_value, max_value, start_value, increment_by,
>     min_value,
>      > cache_value, log_cnt, is_cycled, is_called FROM public.audit_sq;
>      > CONTEXT: function PL/pgSQL clone_schema(text,text,boolean), row 66 in
>      > EXECUTE
> 
>     I guess audit_sq is a sequence?  It looks to me like this function has
>     not been taught about the changes in sequence metadata in PG v10.
>     You need to update it, or talk to its author about an update.
> 
>                              regards, tom lane
> 


-- 
Adrian Klaver
adrian.klaver@aklaver.com