[GitHub] [incubator-doris] caiconghui commented on a change in pull request #3775: Support read and write lock in table level to reduce lock competition

[GitBox]

caiconghui commented on a change in pull request #3775:
URL: https://github.com/apache/incubator-doris/pull/3775#discussion_r435865138



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File path: fe/src/main/java/org/apache/doris/alter/Alter.java
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@@ -118,30 +118,30 @@ public void 
processDropMaterializedView(DropMaterializedViewStmt stmt) throws Dd
             ErrorReport.reportDdlException(ErrorCode.ERR_BAD_DB_ERROR, dbName);
         }
 
-        db.writeLock();
+        String tableName = stmt.getTableName().getTbl();
+        Table table = db.getTable(tableName);

Review comment:
       Here should throw userException or try and catch then throw ddl 
exception because we need some detailed error message? 




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