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authorPeter Eisentraut <peter@eisentraut.org>2022-02-14 08:09:04 +0100
committerPeter Eisentraut <peter@eisentraut.org>2022-02-14 08:27:26 +0100
commit37851a8b83d3d57ca48736093b10aa5f3bc0c177 (patch)
tree5da6f597063d9579937e80aaf66d92c50ef73029 /src/bin/initdb/initdb.c
parent9898c5e03c40c133a9a01d8b2b36cb7c990b30d5 (diff)
Database-level collation version tracking
This adds to database objects the same version tracking that collation objects have. There is a new pg_database column datcollversion that stores the version, a new function pg_database_collation_actual_version() to get the version from the operating system, and a new subcommand ALTER DATABASE ... REFRESH COLLATION VERSION. This was not originally added together with pg_collation.collversion, since originally version tracking was only supported for ICU, and ICU on a database-level is not currently supported. But we now have version tracking for glibc (since PG13), FreeBSD (since PG14), and Windows (since PG13), so this is useful to have now. Reviewed-by: Julien Rouhaud <rjuju123@gmail.com> Discussion: https://www.postgresql.org/message-id/flat/f0ff3190-29a3-5b39-a179-fa32eee57db6%40enterprisedb.com
Diffstat (limited to 'src/bin/initdb/initdb.c')
-rw-r--r--src/bin/initdb/initdb.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c
index d78e8e67b8d..97f15971e2b 100644
--- a/src/bin/initdb/initdb.c
+++ b/src/bin/initdb/initdb.c
@@ -1858,6 +1858,18 @@ make_template0(FILE *cmdfd)
CppAsString2(Template0ObjectId) ";\n\n",
/*
+ * template0 shouldn't have any collation-dependent objects, so unset
+ * the collation version. This disables collation version checks when
+ * making a new database from it.
+ */
+ "UPDATE pg_database SET datcollversion = NULL WHERE datname = 'template0';\n\n",
+
+ /*
+ * While we are here, do set the collation version on template1.
+ */
+ "UPDATE pg_database SET datcollversion = pg_database_collation_actual_version(oid) WHERE datname = 'template1';\n\n",
+
+ /*
* Explicitly revoke public create-schema and create-temp-table
* privileges in template1 and template0; else the latter would be on
* by default