MDEV-23492 performance_schema_digests_size changing from default to 5000 when enabling performance_schema

max allowed value limit should be larger than any auto-sized value

Author: vuvova

mysql-test/suite/sys_vars/r/sysvars_server_embedded.result

@@ -2328,7 +2328,7 @@ VARIABLE_SCOPE	GLOBAL
 VARIABLE_TYPE	BIGINT
 VARIABLE_COMMENT	Size of the statement digest. Use 0 to disable, -1 for automated sizing.
 NUMERIC_MIN_VALUE	-1
-NUMERIC_MAX_VALUE	200
+NUMERIC_MAX_VALUE	1048576
 NUMERIC_BLOCK_SIZE	1
 ENUM_VALUE_LIST	NULL
 READ_ONLY	YES

mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result

@@ -2488,7 +2488,7 @@ VARIABLE_SCOPE	GLOBAL
 VARIABLE_TYPE	BIGINT
 VARIABLE_COMMENT	Size of the statement digest. Use 0 to disable, -1 for automated sizing.
 NUMERIC_MIN_VALUE	-1
-NUMERIC_MAX_VALUE	200
+NUMERIC_MAX_VALUE	1048576
 NUMERIC_BLOCK_SIZE	1
 ENUM_VALUE_LIST	NULL
 READ_ONLY	YES

sql/sys_vars.cc

@@ -362,7 +362,7 @@ static Sys_var_long Sys_pfs_digest_size(
        "Size of the statement digest."
        " Use 0 to disable, -1 for automated sizing.",
        PARSED_EARLY READ_ONLY GLOBAL_VAR(pfs_param.m_digest_sizing),
-       CMD_LINE(REQUIRED_ARG), VALID_RANGE(-1, 200),
+       CMD_LINE(REQUIRED_ARG), VALID_RANGE(-1, 1024*1024),
        DEFAULT(PFS_AUTOSCALE_VALUE), BLOCK_SIZE(1));
 
 static Sys_var_long Sys_pfs_events_transactions_history_long_size(