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[Variable] Add a new global variable "performance_schema" to support Mysql JDBC 8.0.16 or later.#4537# (#4542)

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zhaojintaozhao
2020-09-08 09:25:20 +08:00
committed by GitHub
parent aae942b982
commit 8be04fac64
3 changed files with 13 additions and 0 deletions
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5
fe/fe-core/src/main/java/org/apache/doris/qe/GlobalVariable.java
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@ -40,6 +40,7 @@ public final class GlobalVariable {
public static final String SYSTEM_TIME_ZONE = "system_time_zone";
public static final String QUERY_CACHE_SIZE = "query_cache_size";
public static final String DEFAULT_ROWSET_TYPE = "default_rowset_type";
public static final String PERFORMANCE_SCHEMA = "performance_schema";
@VariableMgr.VarAttr(name = VERSION_COMMENT, flag = VariableMgr.READ_ONLY)
public static String versionComment = "Doris version " + Version.DORIS_BUILD_VERSION;
@ -74,6 +75,10 @@ public final class GlobalVariable {
@VariableMgr.VarAttr(name = DEFAULT_ROWSET_TYPE, flag = VariableMgr.GLOBAL)
public volatile static String defaultRowsetType = "alpha";
// add performance schema to support MYSQL JDBC 8.0.16 or later versions.
@VariableMgr.VarAttr(name = PERFORMANCE_SCHEMA, flag = VariableMgr.READ_ONLY)
public static String performanceSchema = "OFF";
// Don't allow create instance.
private GlobalVariable() {