1 修复 OracleOutputVisitor.java 在输出hint时候输出错误

2 hint必须放在select后面否则走不上索引 3 统一分隔，所有符号后面加一个空格
2023-03-04 19:17:16 +00:00 · 2013-07-30 20:08:37 +08:00
parent 555e73c164
commit f347c78a1a
3 changed files with 42 additions and 8 deletions
@@ -0,0 +1,36 @@
+package com.alibaba.druid.bvt.sql.oracle;
+
+import java.util.List;
+
+import com.alibaba.druid.sql.PagerUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
+import com.alibaba.druid.sql.dialect.oracle.visitor.OracleOutputVisitor;
+import com.alibaba.druid.util.JdbcUtils;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+public class OracleHintTest extends TestCase {
+
+	public void test_hint1() throws Exception {
+		 String sql = "SELECT /*+leading(e) index(e ORD_ORDER_ITEM_GS_BS_DI_IND)*/ distinct e.id from ord_order_item e where e.F1 = Date '2011-10-01'";
+		
+	     OracleStatementParser parser = new OracleStatementParser(sql);
+	     List<SQLStatement> statementList = parser.parseStatementList();
+	     SQLStatement stmt = statementList.get(0);
+	     
+	     StringBuilder out = new StringBuilder();
+	     stmt.accept(new OracleOutputVisitor(out, true));
+
+	     String newSQL = out.toString();	     
+	     Assert.assertEquals("SELECT /*+leading(e) index(e ORD_ORDER_ITEM_GS_BS_DI_IND)*/ DISTINCT e.id\nFROM ord_order_item e\nWHERE e.F1 = DATE '2011-10-01';\n", newSQL); 
+	     
+	}
+	
+	public void test_hint2() throws Exception {
+		String sql = "SELECT /*+leading(e) index(e ORD_ORDER_ITEM_GS_BS_DI_IND)*/ distinct e.id from ord_order_item e where e.F1 = Date '2011-10-01'";
+		String countSQL = PagerUtils.count(sql, JdbcUtils.ORACLE);		
+		Assert.assertEquals("SELECT /*+leading(e) index(e ORD_ORDER_ITEM_GS_BS_DI_IND)*/ DISTINCT COUNT(*)\nFROM ord_order_item e\nWHERE e.F1 = DATE '2011-10-01'", countSQL);
+	}
+}