Merge 7538dc54a7 into 6024bcf122

core/src/main/java/com/alibaba/druid/pool/DruidDataSource.java

@@ -3253,7 +3253,9 @@ public class DruidDataSource extends DruidAbstractDataSource
             lock.lock();
             try {
                 int fillCount = minIdle - (activeCount + poolingCount + createTaskCount);
-                emptySignal(fillCount);
+                if (fillCount > 0) {
+                    emptySignal(fillCount);
+                }
             } finally {
                 lock.unlock();
             }

core/src/main/java/com/alibaba/druid/sql/dialect/clickhouse/parser/CKStatementParser.java

@@ -4,6 +4,7 @@ import com.alibaba.druid.DbType;
 import com.alibaba.druid.sql.ast.SQLName;
 import com.alibaba.druid.sql.ast.statement.SQLAlterStatement;
 import com.alibaba.druid.sql.ast.statement.SQLAlterTableStatement;
+import com.alibaba.druid.sql.ast.statement.SQLColumnDefinition;
 import com.alibaba.druid.sql.ast.statement.SQLCreateViewStatement;
 import com.alibaba.druid.sql.ast.statement.SQLUpdateSetItem;
 import com.alibaba.druid.sql.ast.statement.SQLWithSubqueryClause;
@@ -115,4 +116,7 @@ public class CKStatementParser extends SQLStatementParser {
             }
         }
     }
+    public void parseCreateViewAtDataType(SQLColumnDefinition column, SQLName expr) {
+        column.setDataType(this.exprParser.parseDataType());
+    }
 }

core/src/test/resources/bvt/parser/clickhouse/0.txt

@@ -1,3 +1,12 @@
+create view test (a uint32) as select a from b
+--------------------
+CREATE VIEW test (
+	a uint32
+)
+AS
+SELECT a
+FROM b
+------------------------------------------------------------------------------------------------------------------------
 select 
 /*
 /*