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From: Chapman Flack <[email protected]>
To: Devrim Gündüz <[email protected]>
To: [email protected]
Subject: Re: PL/Java 1.5.2 - fixes one regression in date conversion in 1.5.1
Date: Wed, 27 Feb 2019 14:38:51 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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Hi Devrim,

I assume it's straightforward to change the symlinks to have the
right names?

Regards,
-Chap


On 2/26/19 4:18 PM, Chapman Flack wrote:
> On 2/26/19 2:16 PM, Devrim Gündüz wrote:
>> How does it look now?
>>
>> # ll *sql
>> lrwxrwxrwx 1 root root   39 Feb 26 22:13 pljava--1.5.0--1.5.1.sql -> /usr/pgsql-11/share/pljava/pljava--.sql
>> lrwxrwxrwx 1 root root   39 Feb 26 22:13 pljava--1.5.0-BETA1--1.5.1.sql -> /usr/pgsql-11/share/pljava/pljava--.sql
>> lrwxrwxrwx 1 root root   39 Feb 26 22:13 pljava--1.5.0-BETA2--1.5.1.sql -> /usr/pgsql-11/share/pljava/pljava--.sql
>> lrwxrwxrwx 1 root root   39 Feb 26 22:13 pljava--1.5.0-BETA3--1.5.1.sql -> /usr/pgsql-11/share/pljava/pljava--.sql
>> lrwxrwxrwx 1 root root   39 Feb 26 22:13 pljava--1.5.1--1.5.2.sql -> /usr/pgsql-11/share/pljava/pljava--.sql
>> lrwxrwxrwx 1 root root   39 Feb 26 22:13 pljava--1.5.1-BETA1--1.5.1.sql -> /usr/pgsql-11/share/pljava/pljava--.sql
>> lrwxrwxrwx 1 root root   39 Feb 26 22:13 pljava--1.5.1-BETA2--1.5.1.sql -> /usr/pgsql-11/share/pljava/pljava--.sql
>> lrwxrwxrwx 1 root root   39 Feb 26 22:13 pljava--1.5.1-BETA3--1.5.1.sql -> /usr/pgsql-11/share/pljava/pljava--.sql
>> -rw-r--r-- 1 root root 3228 Feb 26 22:13 pljava--1.5.2.sql
>> -rw-r--r-- 1 root root 2433 Feb 26 22:13 pljava--.sql
>> -rw-r--r-- 1 root root 3580 Feb 26 22:13 pljava--unpackaged--1.5.2.sql
> 
> Hi Devrim,
> 
> Thanks for taking a look ... that's better, with one complication, though.
> 
> It has links for updating 150-BETA* to 150, 151-BETA* and 150 to 151,
> 151-BETA* and 151 to 152, which would be the typical arrangement for a
> typical extension, and would cause PostgreSQL to automatically apply
> multiple scripts in sequence.
> 
> The multiple script sequence won't work in PL/Java though, because
> the updating work is really done inside PL/Java at its own startup,
> which can't be repeated over a single backend connection.
> (You have seen that they are all links to one script, which does
> nothing but store the library pathname and exnihilo=false (indicating
> update) in a table and LOAD the library, which unconditionally applies
> any schema updates needed to match its own version. PostgreSQL itself
> treats later LOADs of the same library as no-ops, so I couldn't
> make the multiple-script sequence work if I wanted to).
> 
> This is sort of an imperfect fit with the PG extension conventions,
> but PL/Java 1.5.x still supports PG versions older than the extension
> feature, so updating has to be easy for them too.
> 
> So the intent for packaging is to include a link pljava--foo--1.5.2.sql
> for every plausible prior version foo, so PostgreSQL will choose
> a one-script update path no matter which prior version is installed.
> 
> The actual files placed into an "official" build can be found
> starting here:
> 
> https://github.com/tada/pljava/blob/REL1_5_STABLE/pljava-packaging/build.xml#L280
> 
> Thanks!
> -Chap
> 

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