clickhouse - view support, incremental structure update

plugins/dbgate-plugin-clickhouse/src/backend/sql/views.js

@@ -0,0 +1,10 @@
+module.exports = `
+select 
+    tables.name as "pureName",
+    tables.uuid as "objectId",
+    views.view_definition as "viewDefinition",
+    tables.metadata_modification_time as "contentHash"
+from information_schema.views 
+inner join system.tables on views.table_name = tables.name and views.table_schema = tables.database
+where views.table_schema='#DATABASE#' and tables.uuid =OBJECT_ID_CONDITION
+`;