From a175314c3e5827eb193872241446f2f8f5c9d33c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 20:07:14 +0200 Subject: Adding upstream version 1:10.5.12. Signed-off-by: Daniel Baumann --- scripts/mysql_performance_tables.sql | 55 ++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 scripts/mysql_performance_tables.sql (limited to 'scripts/mysql_performance_tables.sql') diff --git a/scripts/mysql_performance_tables.sql b/scripts/mysql_performance_tables.sql new file mode 100644 index 00000000..30616035 --- /dev/null +++ b/scripts/mysql_performance_tables.sql @@ -0,0 +1,55 @@ +-- +-- PERFORMANCE SCHEMA INSTALLATION +-- Note that this script is also reused by mysql_upgrade, +-- so we have to be very careful here to not destroy any +-- existing database named 'performance_schema' if it +-- can contain user data. +-- In case of downgrade, it's ok to drop unknown tables +-- from a future version, as long as they belong to the +-- performance schema engine. +-- + +set @have_old_pfs= (select count(*) from information_schema.schemata where schema_name='performance_schema'); + +SET @cmd="SET @broken_tables = (select count(*) from information_schema.tables where engine != 'PERFORMANCE_SCHEMA' and table_schema='performance_schema')"; + +-- Work around for bug#49542 +SET @str = IF(@have_old_pfs = 1, @cmd, 'SET @broken_tables = 0'); +PREPARE stmt FROM @str; +EXECUTE stmt; +DROP PREPARE stmt; + +SET @cmd="SET @broken_views = (select count(*) from information_schema.views where table_schema='performance_schema')"; + +-- Work around for bug#49542 +SET @str = IF(@have_old_pfs = 1, @cmd, 'SET @broken_views = 0'); +PREPARE stmt FROM @str; +EXECUTE stmt; +DROP PREPARE stmt; + +SET @broken_routines = (select count(*) from mysql.proc where db='performance_schema'); + +SET @broken_events = (select count(*) from mysql.event where db='performance_schema'); + +SET @broken_pfs= (select @broken_tables + @broken_views + @broken_routines + @broken_events); + +-- +-- The performance schema database. +-- Only drop and create the database if this is safe (no broken_pfs). +-- This database is created, even in --without-perfschema builds, +-- so that the database name is always reserved by the MySQL implementation. +-- + +SET @cmd= "DROP DATABASE IF EXISTS performance_schema"; + +SET @str = IF(@broken_pfs = 0, @cmd, 'SET @dummy = 0'); +PREPARE stmt FROM @str; +EXECUTE stmt; +DROP PREPARE stmt; + +SET @cmd= "CREATE DATABASE performance_schema character set utf8"; + +SET @str = IF(@broken_pfs = 0, @cmd, 'SET @dummy = 0'); +PREPARE stmt FROM @str; +EXECUTE stmt; +DROP PREPARE stmt; -- cgit v1.2.3