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** Setup ** SET @global_max_prepared_stmt_count = @@global.max_prepared_stmt_count; '#---------------------FN_DYNVARS_031_01----------------------#' SET GLOBAL max_prepared_stmt_count=2; ** Prepare statements ** PREPARE stmt from "SELECT * FROM information_schema.CHARACTER_SETS C"; PREPARE stmt1 from "SELECT * FROM information_schema.CHARACTER_SETS C"; PREPARE stmt2 from "SELECT * FROM information_schema.CHARACTER_SETS C"; ERROR 42000: Can't create more than max_prepared_stmt_count statements (current value: 2) Expected error "Max prepared statements count reached" SHOW STATUS like 'Prepared_stmt_count'; Variable_name Value Prepared_stmt_count 2 2 Expected '#---------------------FN_DYNVARS_031_02----------------------#' SET GLOBAL max_prepared_stmt_count=0; PREPARE stmt3 from "SELECT * FROM information_schema.CHARACTER_SETS C"; ERROR 42000: Can't create more than max_prepared_stmt_count statements (current value: 0) Expected error "Max prepared statements count reached" SHOW STATUS like 'Prepared_stmt_count'; Variable_name Value Prepared_stmt_count 2 2 Expected PREPARE stmt from "SELECT * FROM information_schema.CHARACTER_SETS C"; ERROR 42000: Can't create more than max_prepared_stmt_count statements (current value: 0) Expected error "Max prepared statements count reached" SHOW STATUS like 'Prepared_stmt_count'; Variable_name Value Prepared_stmt_count 1 2 Expected 'Bug#35389 A pre existing valid prepared statement DROPS if a PREPARE' 'STATEMENT command is issued with the same name that' 'causes ER_MAX_PREPARED_STMT_COUNT_REACHED error' '#---------------------FN_DYNVARS_031_03----------------------#' SHOW STATUS like 'Prepared_stmt_count'; Variable_name Value Prepared_stmt_count 1 SET GLOBAL max_prepared_stmt_count=4; PREPARE stmt from "SELECT * FROM information_schema.CHARACTER_SETS C"; PREPARE stmt1 from "SELECT * FROM information_schema.CHARACTER_SETS C"; PREPARE stmt2 from "SELECT * FROM information_schema.CHARACTER_SETS C"; PREPARE stmt3 from "SELECT * FROM information_schema.CHARACTER_SETS C"; ** Value of prepared stmt' SHOW STATUS LIKE 'Prepared_stmt_count'; Variable_name Value Prepared_stmt_count 4 4 Expected '#---------------------FN_DYNVARS_031_04----------------------#' ** preparing stmts ** PREPARE stmt from "SELECT * FROM information_schema.CHARACTER_SETS C"; PREPARE stmt1 from "SELECT * FROM information_schema.CHARACTER_SETS C"; PREPARE stmt2 from "SELECT * FROM information_schema.CHARACTER_SETS C"; ** setting value ** SET GLOBAL max_prepared_stmt_count=3; ** Check wether any more statements can be prepared ** PREPARE stmt5 from "SELECT * FROM information_schema.CHARACTER_SETS C"; ERROR 42000: Can't create more than max_prepared_stmt_count statements (current value: 3) Expected error "Max prepared statements count reached" SHOW STATUS LIKE 'Prepared_stmt_count'; Variable_name Value Prepared_stmt_count 4 4 Expected '#---------------------FN_DYNVARS_031_05----------------------#' SET GLOBAL max_prepared_stmt_count=3; ** Creating procedure ** DROP PROCEDURE IF EXISTS sp_checkstmts; Warnings: Note 1305 PROCEDURE test.sp_checkstmts does not exist CREATE PROCEDURE sp_checkstmts () BEGIN PREPARE newstmt from "SELECT * FROM information_schema.CHARACTER_SETS C"; END // CALL sp_checkstmts(); ERROR 42000: Can't create more than max_prepared_stmt_count statements (current value: 3) Expected error "Max prepared statements count reached" DROP PREPARE stmt; DROP PREPARE stmt1; DROP PREPARE stmt2; DROP PREPARE stmt3; DROP PROCEDURE sp_checkstmts; SET @@global.max_prepared_stmt_count = @global_max_prepared_stmt_count;