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Re: regexp_replace failing on 9.0.4

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On 03/18/2013 01:19 PM, Tom Lane wrote:
Rob Sargent <robjsargent@xxxxxxxxx> writes:
On our 9.0.4[1] server my regexp_replace is a no-op, but on the 9.0.3[2]
test machine and my 9.1.2[3] dev box all is fine

AFAICS from the commit logs, there were no changes affecting the regex
code between 9.0.3 and 9.0.4.  I'm suspicious that your data is
different on the different servers.

			regards, tom lane

Good to hear, thought I might have glossed over the telling release note - my usual mo

I restored my dev db from prod just for this run. test and prod are out of sync by a couple of weeks.

What I had to do ultimately was as follows,

create table support.duplicate_pathdx_namespace
as select item_id, legacy_id, name, locked_by, maxversion,
   regexp_replace(substring(content,1,150),
      '(^.*)ns/acres/pathology/dx/1.5(.*$)',
       E'\\1ns/acres/pathology/dx/1.6\\2')
  || substring(content, 151) as content
from support.fix_pathdx_namespace;

and the update finally stuck, then copied that reconstructed textblock over to the target production table in an regexp-less update. Doing the reg_exp_replace on the whole text blog as part of create temp table did not work.

I'll double check my dev server from same pre-run dump.

Weird.





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