feat: add information_schema.global_status

GreptimeTeam · Dec 31, 2023 · b55fd6c · b55fd6c
1 parent d8d4aae
commit b55fd6c
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Showing 4 changed files with 13 additions and 0 deletions.
diff --git a/src/catalog/src/information_schema.rs b/src/catalog/src/information_schema.rs
@@ -69,6 +69,7 @@ lazy_static! {
         SCHEMA_PRIVILEGES,
         TABLE_PRIVILEGES,
         TRIGGERS,
+        GLOBAL_STATUS,
     ];
 }
 
@@ -195,6 +196,7 @@ impl InformationSchemaProvider {
             SCHEMA_PRIVILEGES => setup_memory_table!(SCHEMA_PRIVILEGES),
             TABLE_PRIVILEGES => setup_memory_table!(TABLE_PRIVILEGES),
             TRIGGERS => setup_memory_table!(TRIGGERS),
+            GLOBAL_STATUS => setup_memory_table!(GLOBAL_STATUS),
             KEY_COLUMN_USAGE => Some(Arc::new(InformationSchemaKeyColumnUsage::new(
                 self.catalog_name.clone(),
                 self.catalog_manager.clone(),

diff --git a/src/catalog/src/information_schema/memory_table/tables.rs b/src/catalog/src/information_schema/memory_table/tables.rs
@@ -392,6 +392,14 @@ pub fn get_schema_columns(table_name: &str) -> (SchemaRef, Vec<VectorRef>) {
             vec![],
         ),
 
+        GLOBAL_STATUS => (
+            vec![
+                string_column("VARIABLE_NAME"),
+                string_column("VARIABLE_VALUE"),
+            ],
+            vec![],
+        ),
+
         _ => unreachable!("Unknown table in information_schema: {}", table_name),
     };
 

diff --git a/src/catalog/src/information_schema/table_names.rs b/src/catalog/src/information_schema/table_names.rs
@@ -35,4 +35,5 @@ pub const REFERENTIAL_CONSTRAINTS: &str = "referential_constraints";
 pub const ROUTINES: &str = "routines";
 pub const SCHEMA_PRIVILEGES: &str = "schema_privileges";
 pub const TABLE_PRIVILEGES: &str = "table_privileges";
+pub const GLOBAL_STATUS: &str = "global_status";
 pub const TRIGGERS: &str = "triggers";
diff --git a/src/common/catalog/src/consts.rs b/src/common/catalog/src/consts.rs
@@ -76,6 +76,8 @@ pub const INFORMATION_SCHEMA_SCHEMA_PRIVILEGES_TABLE_ID: u32 = 22;
 pub const INFORMATION_SCHEMA_TABLE_PRIVILEGES_TABLE_ID: u32 = 23;
 /// id for information_schema.TRIGGERS
 pub const INFORMATION_SCHEMA_TRIGGERS_TABLE_ID: u32 = 24;
+/// id for information_schema.GLOBAL_STATUS
+pub const INFORMATION_SCHEMA_GLOBAL_STATUS_TABLE_ID: u32 = 25;
 /// ----- End of information_schema tables -----
 
 pub const MITO_ENGINE: &str = "mito";