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Remove pg_collation.collversion.

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This model couldn't be extended to cover the default collation, and
didn't have any information about the affected database objects when the
version changed.  Remove, in preparation for a follow-up commit that
will add a new mechanism.

Author: Thomas Munro <thomas.munro@gmail.com>
Reviewed-by: Julien Rouhaud <rjuju123@gmail.com>
Reviewed-by: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Discussion: https://postgr.es/m/CAEepm%3D0uEQCpfq_%2BLYFBdArCe4Ot98t1aR4eYiYTe%3DyavQygiQ%40mail.gmail.com
This commit is contained in:
Thomas Munro
2020-11-02 19:36:09 +13:00
parent 8ef2a5afdf
commit 7d1297df08
22 changed files with 8 additions and 344 deletions
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21
doc/src/sgml/ref/create_collation.sgml
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@@ -27,7 +27,6 @@ CREATE COLLATION [ IF NOT EXISTS ] <replaceable>name</replaceable> (
[ LC_CTYPE = <replaceable>lc_ctype</replaceable>, ]
[ PROVIDER = <replaceable>provider</replaceable>, ]
[ DETERMINISTIC = <replaceable>boolean</replaceable>, ]
[ VERSION = <replaceable>version</replaceable> ]
)
CREATE COLLATION [ IF NOT EXISTS ] <replaceable>name</replaceable> FROM <replaceable>existing_collation</replaceable>
</synopsis>
@@ -149,26 +148,6 @@ CREATE COLLATION [ IF NOT EXISTS ] <replaceable>name</replaceable> FROM <replace
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>version</replaceable></term>
<listitem>
<para>
Specifies the version string to store with the collation. Normally,
this should be omitted, which will cause the version to be computed
from the actual version of the collation as provided by the operating
system. This option is intended to be used
by <command>pg_upgrade</command> for copying the version from an
existing installation.
</para>
<para>
See also <xref linkend="sql-altercollation"/> for how to handle
collation version mismatches.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>existing_collation</replaceable></term>