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Database-level collation version tracking

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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
This commit is contained in:
Peter Eisentraut
2022-02-14 08:09:04 +01:00
parent 9898c5e03c
commit 37851a8b83
22 changed files with 367 additions and 15 deletions
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14
src/backend/tcop/utility.c
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@@ -136,6 +136,7 @@ ClassifyUtilityCommandAsReadOnly(Node *parsetree)
switch (nodeTag(parsetree))
{
case T_AlterCollationStmt:
case T_AlterDatabaseRefreshCollStmt:
case T_AlterDatabaseSetStmt:
case T_AlterDatabaseStmt:
case T_AlterDefaultPrivilegesStmt:
@@ -779,6 +780,11 @@ standard_ProcessUtility(PlannedStmt *pstmt,
AlterDatabase(pstate, (AlterDatabaseStmt *) parsetree, isTopLevel);
break;
case T_AlterDatabaseRefreshCollStmt:
/* no event triggers for global objects */
AlterDatabaseRefreshColl((AlterDatabaseRefreshCollStmt *) parsetree);
break;
case T_AlterDatabaseSetStmt:
/* no event triggers for global objects */
AlterDatabaseSet((AlterDatabaseSetStmt *) parsetree);
@@ -2801,9 +2807,7 @@ CreateCommandTag(Node *parsetree)
break;
case T_AlterDatabaseStmt:
tag = CMDTAG_ALTER_DATABASE;
break;
case T_AlterDatabaseRefreshCollStmt:
case T_AlterDatabaseSetStmt:
tag = CMDTAG_ALTER_DATABASE;
break;
@@ -3444,9 +3448,7 @@ GetCommandLogLevel(Node *parsetree)
break;
case T_AlterDatabaseStmt:
lev = LOGSTMT_DDL;
break;
case T_AlterDatabaseRefreshCollStmt:
case T_AlterDatabaseSetStmt:
lev = LOGSTMT_DDL;
break;