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SET @session_max_recursion_depth = @@SESSION.max_sp_recursion_depth; '#--------------------FN_DYNVARS_099_01-------------------------#' ** Connecting test_con1 using username 'root' ** ** Connection test_con1 ** SET @@session.max_sp_recursion_depth = 10; SELECT @@session.max_sp_recursion_depth; @@session.max_sp_recursion_depth 10 DROP PROCEDURE IF EXISTS sp_addRecords; CREATE PROCEDURE sp_addRecords (IN var1 INT,IN var2 INT) BEGIN SELECT var1,var2; IF var1 < var2 THEN CALL sp_addRecords(var1+1,var2); SELECT var1,var2; END IF; END // CALL sp_addRecords(0,8); var1 var2 0 8 var1 var2 1 8 var1 var2 2 8 var1 var2 3 8 var1 var2 4 8 var1 var2 5 8 var1 var2 6 8 var1 var2 7 8 var1 var2 8 8 var1 var2 7 8 var1 var2 6 8 var1 var2 5 8 var1 var2 4 8 var1 var2 3 8 var1 var2 2 8 var1 var2 1 8 var1 var2 0 8 '#--------------------FN_DYNVARS_099_02-------------------------#' ** Connecting test_con2 using username 'root' ** ** Connection test_con2 ** SET @@session.max_sp_recursion_depth = 4; SELECT @@session.max_sp_recursion_depth; @@session.max_sp_recursion_depth 4 DROP PROCEDURE IF EXISTS sp_addRecords1; CREATE PROCEDURE sp_addRecords1 (IN var1 INT,IN var2 INT) BEGIN SELECT var1,var2; IF var1 < var2 THEN CALL sp_addRecords1(var1+1,var2); SELECT var1,var2; END IF; END // CALL sp_addRecords1(0,4); var1 var2 0 4 var1 var2 1 4 var1 var2 2 4 var1 var2 3 4 var1 var2 4 4 var1 var2 3 4 var1 var2 2 4 var1 var2 1 4 var1 var2 0 4 '#---------------------FN_DYNVARS_99_03----------------------#' SET @@max_sp_recursion_depth = 10; DROP PROCEDURE IF EXISTS sp_addRecords2; CREATE PROCEDURE sp_addRecords2(IN var1 INT,IN var2 INT) BEGIN SELECT var1,var2; IF var1 < var2 THEN CALL sp_addRecords2(var1+1,var2); SELECT var1,var2; END IF; END // CALL sp_addRecords2(0,8); var1 var2 0 8 var1 var2 1 8 var1 var2 2 8 var1 var2 3 8 var1 var2 4 8 var1 var2 5 8 var1 var2 6 8 var1 var2 7 8 var1 var2 8 8 var1 var2 7 8 var1 var2 6 8 var1 var2 5 8 var1 var2 4 8 var1 var2 3 8 var1 var2 2 8 var1 var2 1 8 var1 var2 0 8 '#---------------------FN_DYNVARS_99_04----------------------#' SET @@max_sp_recursion_depth = 4; DROP PROCEDURE IF EXISTS sp_addRecords3; CREATE PROCEDURE sp_addRecords3 (IN var1 INT,IN var2 INT) BEGIN SELECT var1,var2; IF var1 < var2 THEN CALL sp_addRecords3(var1+1,var2); SELECT var1,var2; END IF; END // Expected error 'SP Recursion limit' CALL sp_addRecords3(0,8); var1 var2 0 8 var1 var2 1 8 var1 var2 2 8 var1 var2 3 8 var1 var2 4 8 ERROR HY000: Recursive limit 4 (as set by the max_sp_recursion_depth variable) was exceeded for routine sp_addRecords3 ** Connection default ** ** Disconnecting test_con1, test_con2 ** DROP PROCEDURE IF EXISTS sp_addRecords; DROP PROCEDURE IF EXISTS sp_addRecords1; DROP PROCEDURE IF EXISTS sp_addRecords2; DROP PROCEDURE IF EXISTS sp_addRecords3; SET @@SESSION.max_sp_recursion_depth = @session_max_recursion_depth;