mariadb/mysql-test/suite/perfschema/t/prepared_statements.test

# Test for prepared statement instrumentation 

--source include/not_embedded.inc
--source include/have_perfschema.inc
--source include/no_protocol.inc

CREATE DATABASE db;
USE db;

--let $psi_select =  SELECT STATEMENT_NAME, SQL_TEXT, COUNT_REPREPARE, COUNT_EXECUTE, SUM_ROWS_SENT, SUM_SELECT_SCAN, SUM_NO_INDEX_USED FROM performance_schema.prepared_statements_instances 
--let $psi_truncate =  TRUNCATE TABLE performance_schema.prepared_statements_instances 
--let $eshl_select = SELECT EVENT_NAME, SQL_TEXT, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME FROM performance_schema.events_statements_history_long WHERE CURRENT_SCHEMA='db' 
--let $eshl_truncate = TRUNCATE TABLE performance_schema.events_statements_history_long 

--eval $psi_truncate
--eval $eshl_truncate 

--source suite/perfschema/include/prepared_stmts_setup.inc

--vertical_results
--eval $psi_select
--eval $eshl_select
--horizontal_results

--source suite/perfschema/include/prepared_stmts_execution.inc 

--vertical_results
--eval $psi_select
--eval $eshl_select
--horizontal_results

# Truncate to reset the statistics
--eval $psi_truncate

# check whether the statistics are reset
--vertical_results
--eval $psi_select
--horizontal_results

--source suite/perfschema/include/prepared_stmts_deallocation.inc

--vertical_results
# select query on prepared_statements_instances table must return empty set
--eval $psi_select
--eval $eshl_select
--horizontal_results

# truncate
--eval $eshl_truncate

#
# Test to check the instrumentation of prepared statements 
# when all consumers in setup_consumers are disabled.
# 

# Disable all consumers
UPDATE performance_schema.setup_consumers SET ENABLED = 'NO';

--source  suite/perfschema/include/prepared_stmts_setup.inc

--vertical_results
--eval $psi_select
--eval $eshl_select
--horizontal_results

--source suite/perfschema/include/prepared_stmts_execution.inc

--vertical_results
--eval $psi_select
--eval $eshl_select
--horizontal_results

--source suite/perfschema/include/prepared_stmts_deallocation.inc

--vertical_results
--eval $psi_select
--eval $eshl_select
--horizontal_results

# truncate
--eval $eshl_truncate

# restore the initial set-up of consumers table
UPDATE performance_schema.setup_consumers SET ENABLED = 'YES';

#
# Aggregation 
#

PREPARE st FROM 'SELECT SUM(1000 + ?) AS total';

--vertical_results
--eval $psi_select
--horizontal_results

SET @d=100;
EXECUTE st USING @d;

--vertical_results
--eval $psi_select
--horizontal_results

let $i=5;
while($i)
{ 
  SET @d = @d + 100;
  EXECUTE st USING @d;
  --vertical_results
  --eval $psi_select
  --horizontal_results
  dec $i;  
}

# truncate 
--eval $psi_truncate
--vertical_results
--eval $psi_select
--horizontal_results

#
# check whether the instrumented prepared statement is removed from the 
# prepared_statement_instances table after de allocation of the prepared
# statement even if instrumentation is disabled
#

# Disable prepared statement instrumentation
UPDATE performance_schema.setup_instruments SET ENABLED = 'NO' 
       WHERE NAME like "statement/sql/execute%";

SET @d=3274;
# COUNT_EXECUTE should remain 0. No increment must be seen.
EXECUTE st USING @d;
--vertical_results
--eval $psi_select
--horizontal_results

UPDATE performance_schema.setup_instruments SET ENABLED = 'NO'
       WHERE NAME like "statement/sql/prepare%";

DEALLOCATE PREPARE st;
# should return empty set.
--vertical_results
--eval $psi_select
--horizontal_results

# Restore back teh initial set-up of setup_instruments table 

UPDATE performance_schema.setup_instruments SET ENABLED = 'YES'
       WHERE NAME like "statement/sql/prepare%";
UPDATE performance_schema.setup_instruments SET ENABLED = 'YES' 
       WHERE NAME like "statement/sql/execute%";


# Reprepare

CREATE TABLE tab(
   Id   INT,
   name CHAR(10),
   age  INT
);

INSERT INTO tab VALUES(1,"Nakshatr",25),(2,"chanda",24),(3,"tejas",78);

PREPARE st FROM 'SELECT * FROM tab';

--vertical_results
--eval $psi_select
--horizontal_results

EXECUTE st;

--vertical_results
--eval $psi_select
--horizontal_results

ALTER TABLE tab DROP COLUMN age;

EXECUTE st;

--vertical_results
--eval $psi_select
--horizontal_results

ALTER TABLE tab ADD COLUMN age INT NULL;

EXECUTE st;

--vertical_results
--eval $psi_select
--horizontal_results

# check if the statistics are reset 
--eval $psi_truncate
--vertical_results
--eval $psi_select
--horizontal_results

DEALLOCATE PREPARE st;

--vertical_results
--eval $psi_select
--horizontal_results

# clean up
# truncate
--eval $psi_truncate 
--eval $eshl_truncate

DROP TABLE tab;
DROP DATABASE db;