支持Pivot

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@165 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/clause/PivotClause.java

@@ -0,0 +1,59 @@
+package com.alibaba.druid.sql.dialect.oracle.ast.clause;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.alibaba.druid.sql.ast.SQLName;
+import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleAggregateExpr;
+
+public class PivotClause {
+
+    private boolean             xml;
+    private final List<Entry>   entries  = new ArrayList<Entry>();
+    private final List<SQLName> pivotFor = new ArrayList<SQLName>();
+    private final List<SQLName> pivotIn  = new ArrayList<SQLName>();
+
+    public List<Entry> getEntries() {
+        return entries;
+    }
+
+    public List<SQLName> getPivotFor() {
+        return pivotFor;
+    }
+
+    public List<SQLName> getPivotIn() {
+        return pivotIn;
+    }
+
+    public static class Entry {
+
+        private OracleAggregateExpr aggregateExpr;
+        private String              alias;
+
+        public OracleAggregateExpr getAggregateExpr() {
+            return aggregateExpr;
+        }
+
+        public void setAggregateExpr(OracleAggregateExpr aggregateExpr) {
+            this.aggregateExpr = aggregateExpr;
+        }
+
+        public String getAlias() {
+            return alias;
+        }
+
+        public void setAlias(String alias) {
+            this.alias = alias;
+        }
+
+    }
+
+    public boolean isXml() {
+        return xml;
+    }
+
+    public void setXml(boolean xml) {
+        this.xml = xml;
+    }
+
+}

src/test/java/com/alibaba/druid/sql/oracle/bvt/OracleSQLParserResourceTest.java

@@ -47,6 +47,7 @@ public class OracleSQLParserResourceTest extends TestCase {
         exec_test("bvt/parser/oracle-28.txt");
         exec_test("bvt/parser/oracle-29.txt");
         exec_test("bvt/parser/oracle-30.txt");
+        exec_test("bvt/parser/oracle-31.txt");
     }
     
     

src/test/resources/bvt/parser/oracle-31.txt

@@ -1,25 +1,12 @@
-WITH
-  org_chart (eid, emp_last, mgr_id, reportLevel, salary, job_id) AS
-  (
-    SELECT employee_id, last_name, manager_id, 0 reportLevel, salary, job_id
-    FROM employees
-    WHERE manager_id is null
-  UNION ALL
-    SELECT e.employee_id, e.last_name, e.manager_id,
-           r.reportLevel+1 reportLevel, e.salary, e.job_id
-    FROM org_chart r, employees e
-    WHERE r.eid = e.manager_id
-  )
-  SEARCH DEPTH FIRST BY emp_last SET order1
-SELECT lpad(' ',2*reportLevel)||emp_last emp_name, eid, mgr_id, salary, job_id
-FROM org_chart
-ORDER BY order1;		     			 	     	
-
+SELECT * FROM
+(SELECT EXTRACT(YEAR FROM order_date) year, order_mode, order_total FROM orders)
+PIVOT
+(SUM(order_total) FOR order_mode IN ('direct' AS Store, 'online' AS Internet));
 
 
 ---------------------------
-SELECT bk.attr_id AS attrId, group_concat(DISTINCT(bk.value_id)) AS attrValueStr, group_concat(DISTINCT(pt.name)) AS themeNameStr
-FROM price_theme pt LEFT JOIN tl_spu_attr_value_rel_bk bk ON pt.spu_id = bk.spu_id 
-WHERE pt.status = 'action' AND pt.category_id = ?
-GROUP BY bk.attr_id;
+SELECT * FROM
+(SELECT EXTRACT(YEAR FROM order_date) year, order_mode, order_total FROM orders)
+PIVOT
+(SUM(order_total) FOR order_mode IN ('direct' AS Store, 'online' AS Internet));
 

src/test/resources/bvt/parser/oracle-32.txt

@@ -0,0 +1,12 @@
+SELECT * FROM
+(SELECT EXTRACT(YEAR FROM order_date) year, order_mode, order_total FROM orders)
+PIVOT
+(SUM(order_total) FOR order_mode IN ('direct' AS Store, 'online' AS Internet));
+
+
+---------------------------
+SELECT * FROM
+(SELECT EXTRACT(YEAR FROM order_date) year, order_mode, order_total FROM orders)
+PIVOT
+(SUM(order_total) FOR order_mode IN ('direct' AS Store, 'online' AS Internet));
+