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Bug#57609 performance_schema does not work with lower_case_table_names
Before this fix, the performance schema tables were defined in UPPERCASE. This was incompatible with the lowercase_table_names option, and caused issues with the install / upgrade process, when changing the lower case table names setting *after* the install or upgrade. With this fix, all performance schema tables are exposed with lowercase names. As a result, the name of the performance schema table is always lowercase, no matter how / if / when the lowercase_table_names setting if changed.
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@ -1,11 +1,11 @@
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set binlog_format=row;
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RESET MASTER;
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select count(*) > 0 from performance_schema.SETUP_INSTRUMENTS;
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select count(*) > 0 from performance_schema.setup_instruments;
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count(*) > 0
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1
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update performance_schema.SETUP_INSTRUMENTS set enabled='NO'
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update performance_schema.setup_instruments set enabled='NO'
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where name like "wait/synch/rwlock/%";
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select count(*) > 0 from performance_schema.EVENTS_WAITS_CURRENT;
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select count(*) > 0 from performance_schema.events_waits_current;
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count(*) > 0
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1
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drop table if exists test.t1;
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@ -13,18 +13,18 @@ drop table if exists test.t2;
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create table test.t1 (thread_id integer);
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create table test.t2 (name varchar(128));
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insert into test.t1
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select thread_id from performance_schema.EVENTS_WAITS_CURRENT;
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select thread_id from performance_schema.events_waits_current;
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insert into test.t2
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select name from performance_schema.SETUP_INSTRUMENTS
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select name from performance_schema.setup_instruments
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where name like "wait/synch/rwlock/%";
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drop table test.t1;
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drop table test.t2;
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update performance_schema.SETUP_INSTRUMENTS set enabled='YES'
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update performance_schema.setup_instruments set enabled='YES'
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where name like "wait/synch/rwlock/%";
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (performance_schema.SETUP_INSTRUMENTS)
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master-bin.000001 # Table_map # # table_id: # (performance_schema.setup_instruments)
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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@ -43,7 +43,7 @@ master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # use `test`; DROP TABLE `t1` /* generated by server */
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master-bin.000001 # Query # # use `test`; DROP TABLE `t2` /* generated by server */
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (performance_schema.SETUP_INSTRUMENTS)
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master-bin.000001 # Table_map # # table_id: # (performance_schema.setup_instruments)
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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