Alawn/Druid
1
0
Fork 0
mirror of https://github.com/alibaba/druid.git synced 2023-03-04 19:17:16 +00:00
Code Issues Releases Wiki Activity

sql parser direct support OVER

Browse Source
This commit is contained in:
wenshao
2012-11-21 23:37:18 +08:00
parent 04321df02c
commit 96c1950a8d
19 changed files with 270 additions and 233 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/main/java/com/alibaba/druid/sql/ast/SQLOver.java
+74
View File
@@ -0,0 +1,74 @@
package com.alibaba.druid.sql.ast;
import java.util.ArrayList;
import java.util.List;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;
public class SQLOver extends SQLObjectImpl {
private static final long serialVersionUID = 1L;
protected final List<SQLExpr> partitionBy = new ArrayList<SQLExpr>();
protected SQLOrderBy orderBy;
@Override
protected void accept0(SQLASTVisitor visitor) {
if (visitor.visit(this)) {
acceptChild(visitor, this.partitionBy);
acceptChild(visitor, this.orderBy);
}
visitor.endVisit(this);
}
public SQLOrderBy getOrderBy() {
return orderBy;
}
public void setOrderBy(SQLOrderBy orderBy) {
this.orderBy = orderBy;
}
public List<SQLExpr> getPartitionBy() {
return partitionBy;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((orderBy == null) ? 0 : orderBy.hashCode());
result = prime * result + ((partitionBy == null) ? 0 : partitionBy.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
SQLOver other = (SQLOver) obj;
if (orderBy == null) {
if (other.orderBy != null) {
return false;
}
} else if (!orderBy.equals(other.orderBy)) {
return false;
}
if (partitionBy == null) {
if (other.partitionBy != null) {
return false;
}
} else if (!partitionBy.equals(other.partitionBy)) {
return false;
}
return true;
}
}
src/main/java/com/alibaba/druid/sql/ast/expr/SQLAggregateExpr.java
+17 -8
View File
@@ -21,6 +21,7 @@ import java.util.List;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLExprImpl;
import com.alibaba.druid.sql.ast.SQLOver;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;
public class SQLAggregateExpr extends SQLExprImpl implements Serializable {
@@ -29,6 +30,7 @@ public class SQLAggregateExpr extends SQLExprImpl implements Serializable {
protected String methodName;
protected Option option;
protected final List<SQLExpr> arguments = new ArrayList<SQLExpr>();
protected SQLOver over;
public SQLAggregateExpr(String methodName){
@@ -60,20 +62,19 @@ public class SQLAggregateExpr extends SQLExprImpl implements Serializable {
return this.arguments;
}
public void output(StringBuffer buf) {
buf.append(this.methodName);
buf.append("(");
int i = 0;
for (int size = this.arguments.size(); i < size; ++i) {
((SQLExpr) this.arguments.get(i)).output(buf);
}
buf.append(")");
public SQLOver getOver() {
return over;
}
public void setOver(SQLOver over) {
this.over = over;
}
@Override
protected void accept0(SQLASTVisitor visitor) {
if (visitor.visit(this)) {
acceptChild(visitor, this.arguments);
acceptChild(visitor, this.over);
}
visitor.endVisit(this);
@@ -86,6 +87,7 @@ public class SQLAggregateExpr extends SQLExprImpl implements Serializable {
result = prime * result + ((arguments == null) ? 0 : arguments.hashCode());
result = prime * result + ((methodName == null) ? 0 : methodName.hashCode());
result = prime * result + ((option == null) ? 0 : option.hashCode());
result = prime * result + ((over == null) ? 0 : over.hashCode());
return result;
}
@@ -115,6 +117,13 @@ public class SQLAggregateExpr extends SQLExprImpl implements Serializable {
} else if (!methodName.equals(other.methodName)) {
return false;
}
if (over == null) {
if (other.over != null) {
return false;
}
} else if (!over.equals(other.over)) {
return false;
}
if (option != other.option) {
return false;
}
src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/expr/OracleAggregateExpr.java
-9
View File
@@ -25,7 +25,6 @@ import com.alibaba.druid.sql.visitor.SQLASTVisitor;
public class OracleAggregateExpr extends SQLAggregateExpr implements Serializable, OracleExpr {
private static final long serialVersionUID = 1L;
private OracleAnalytic over;
private boolean ignoreNulls = false;
public boolean isUnique() {
@@ -52,14 +51,6 @@ public class OracleAggregateExpr extends SQLAggregateExpr implements Serializabl
super(methodName, option);
}
public OracleAnalytic getOver() {
return this.over;
}
public void setOver(OracleAnalytic over) {
this.over = over;
}
public void output(StringBuffer buf) {
buf.append(this.methodName);
buf.append("(");
src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/expr/OracleAnalytic.java
+2 -21
View File
@@ -15,20 +15,13 @@
*/
package com.alibaba.druid.sql.dialect.oracle.ast.expr;
import java.util.ArrayList;
import java.util.List;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLObjectImpl;
import com.alibaba.druid.sql.dialect.oracle.ast.OracleOrderBy;
import com.alibaba.druid.sql.ast.SQLOver;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleASTVisitor;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;
public class OracleAnalytic extends SQLObjectImpl implements OracleExpr {
public class OracleAnalytic extends SQLOver implements OracleExpr {
private static final long serialVersionUID = 1L;
private final List<SQLExpr> partitionBy = new ArrayList<SQLExpr>();
private OracleOrderBy orderBy;
private OracleAnalyticWindowing windowing;
public OracleAnalytic(){
@@ -49,14 +42,6 @@ public class OracleAnalytic extends SQLObjectImpl implements OracleExpr {
visitor.endVisit(this);
}
public OracleOrderBy getOrderBy() {
return this.orderBy;
}
public void setOrderBy(OracleOrderBy orderBy) {
this.orderBy = orderBy;
}
public OracleAnalyticWindowing getWindowing() {
return this.windowing;
}
@@ -64,8 +49,4 @@ public class OracleAnalytic extends SQLObjectImpl implements OracleExpr {
public void setWindowing(OracleAnalyticWindowing windowing) {
this.windowing = windowing;
}
public List<SQLExpr> getPartitionBy() {
return this.partitionBy;
}
}
src/main/java/com/alibaba/druid/sql/dialect/postgresql/ast/PGAggregateExpr.java
-81
View File
@@ -1,81 +0,0 @@
/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.alibaba.druid.sql.dialect.postgresql.ast;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.expr.SQLAggregateExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGAnalytic;
import com.alibaba.druid.sql.dialect.postgresql.visitor.PGASTVisitor;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;
public class PGAggregateExpr extends SQLAggregateExpr implements PGSQLObject {
private PGAnalytic over;
public PGAnalytic getOver() {
return over;
}
public void setOver(PGAnalytic over) {
this.over = over;
}
private static final long serialVersionUID = 1L;
public PGAggregateExpr(String methodName, Option option) {
super(methodName, option);
}
public PGAggregateExpr(String methodName) {
super(methodName);
}
public void output(StringBuffer buf) {
buf.append(this.methodName);
buf.append("(");
int i = 0;
for (int size = this.arguments.size(); i < size; ++i) {
((SQLExpr) this.arguments.get(i)).output(buf);
}
buf.append(")");
if (this.over != null) {
buf.append(" ");
this.over.output(buf);
}
}
@Override
protected void accept0(SQLASTVisitor visitor) {
if (visitor instanceof PGASTVisitor) {
this.accept0((PGASTVisitor) visitor);
} else {
if (visitor.visit(this)) {
acceptChild(visitor, this.arguments);
acceptChild(visitor, this.over);
}
visitor.endVisit(this);
}
}
public void accept0(PGASTVisitor visitor) {
if (visitor.visit(this)) {
acceptChild(visitor, this.arguments);
acceptChild(visitor, this.over);
}
visitor.endVisit(this);
}
}
src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGExprParser.java
+4 -58
View File
@@ -15,16 +15,14 @@
*/
package com.alibaba.druid.sql.dialect.postgresql.parser;
import com.alibaba.druid.sql.ast.expr.SQLAggregateExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGAggregateExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGOrderBy;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGAnalytic;
import com.alibaba.druid.sql.parser.Lexer;
import com.alibaba.druid.sql.parser.SQLExprParser;
import com.alibaba.druid.sql.parser.Token;
public class PGExprParser extends SQLExprParser{
public PGExprParser(String sql) {
public class PGExprParser extends SQLExprParser {
public PGExprParser(String sql){
super(new PGLexer(sql));
this.lexer.nextToken();
}
@@ -32,63 +30,11 @@ public class PGExprParser extends SQLExprParser{
public PGExprParser(Lexer lexer){
super(lexer);
}
protected SQLAggregateExpr parseAggregateExpr(String methodName) {
methodName = methodName.toUpperCase();
PGAggregateExpr aggregateExpr;
if (lexer.token() == Token.ALL) {
aggregateExpr = new PGAggregateExpr(methodName, SQLAggregateExpr.Option.ALL);
lexer.nextToken();
} else if (lexer.token() == Token.DISTINCT) {
aggregateExpr = new PGAggregateExpr(methodName, SQLAggregateExpr.Option.DISTINCT);
lexer.nextToken();
} else {
aggregateExpr = new PGAggregateExpr(methodName);
}
exprList(aggregateExpr.getArguments());
accept(Token.RPAREN);
if (lexer.token() == Token.OVER) {
lexer.nextToken();
PGAnalytic over = new PGAnalytic();
accept(Token.LPAREN);
if (identifierEquals("PARTITION")) {
lexer.nextToken();
accept(Token.BY);
if (lexer.token() == (Token.LPAREN)) {
lexer.nextToken();
exprList(over.getPartitionBy());
accept(Token.RPAREN);
} else {
exprList(over.getPartitionBy());
}
}
over.setOrderBy(parseOrderBy());
// if (over.getOrderBy() != null) {
// //TODO window
// }
accept(Token.RPAREN);
aggregateExpr.setOver(over);
}
return aggregateExpr;
}
@Override
public PGOrderBy parseOrderBy() {
if (lexer.token() == (Token.ORDER)) {
PGOrderBy orderBy = new PGOrderBy();
PGOrderBy orderBy = new PGOrderBy();
lexer.nextToken();
if (identifierEquals("SIBLINGS")) {
src/main/java/com/alibaba/druid/sql/dialect/postgresql/parser/PGLexer.java
-1
View File
@@ -47,7 +47,6 @@ public class PGLexer extends Lexer {
map.put("OFFSET", Token.OFFSET);
map.put("ONLY", Token.ONLY);
map.put("OVER", Token.OVER);
map.put("RECURSIVE", Token.RECURSIVE);
map.put("RESTART", Token.RESTART);
src/main/java/com/alibaba/druid/sql/dialect/postgresql/visitor/PGASTVisitor.java
-5
View File
@@ -15,7 +15,6 @@
*/
package com.alibaba.druid.sql.dialect.postgresql.visitor;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGAggregateExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGWithClause;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGWithQuery;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGAnalytic;
@@ -75,10 +74,6 @@ public interface PGASTVisitor extends SQLASTVisitor {
boolean visit(PGUpdateStatement x);
void endVisit(PGAggregateExpr x);
boolean visit(PGAggregateExpr x);
void endVisit(PGAnalytic x);
boolean visit(PGAnalytic x);
src/main/java/com/alibaba/druid/sql/dialect/postgresql/visitor/PGASTVisitorAdapter.java
-10
View File
@@ -15,7 +15,6 @@
*/
package com.alibaba.druid.sql.dialect.postgresql.visitor;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGAggregateExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGWithClause;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGWithQuery;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGAnalytic;
@@ -151,15 +150,6 @@ public class PGASTVisitorAdapter extends SQLASTVisitorAdapter implements PGASTVi
return true;
}
@Override
public void endVisit(PGAggregateExpr x) {
}
@Override
public boolean visit(PGAggregateExpr x) {
return true;
}
@Override
public void endVisit(PGAnalytic x) {
}
src/main/java/com/alibaba/druid/sql/dialect/postgresql/visitor/PGOutputVisitor.java
+2 -29
View File
@@ -18,7 +18,6 @@ package com.alibaba.druid.sql.dialect.postgresql.visitor;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLSetQuantifier;
import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGAggregateExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGWithClause;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGWithQuery;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGAnalytic;
@@ -440,32 +439,6 @@ public class PGOutputVisitor extends SQLASTOutputVisitor implements PGASTVisitor
}
@Override
public void endVisit(PGAggregateExpr x) {
}
@Override
public boolean visit(PGAggregateExpr x) {
print(x.getMethodName());
print("(");
if (x.getOption() != null) {
print(x.getOption().toString());
print(' ');
}
printAndAccept(x.getArguments(), ", ");
print(")");
if (x.getOver() != null) {
x.getOver().accept(this);
}
return false;
}
@Override
public void endVisit(PGAnalytic x) {
@@ -513,7 +486,7 @@ public class PGOutputVisitor extends SQLASTOutputVisitor implements PGASTVisitor
print(" AS ");
print(x.getAlias());
}
if (x.getParameters().size() > 0) {
print('(');
printAndAccept(x.getParameters(), ", ");
@@ -525,7 +498,7 @@ public class PGOutputVisitor extends SQLASTOutputVisitor implements PGASTVisitor
@Override
public void endVisit(PGFunctionTableSource x) {
}
}
src/main/java/com/alibaba/druid/sql/dialect/postgresql/visitor/PGSchemaStatVisitor.java
-11
View File
@@ -22,7 +22,6 @@ import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
import com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock;
import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
import com.alibaba.druid.sql.ast.statement.SQLTruncateStatement;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGAggregateExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGWithClause;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGWithQuery;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGAnalytic;
@@ -260,16 +259,6 @@ public class PGSchemaStatVisitor extends SchemaStatVisitor implements PGASTVisit
return this.visit((SQLSelectQueryBlock) x);
}
@Override
public void endVisit(PGAggregateExpr x) {
}
@Override
public boolean visit(PGAggregateExpr x) {
return false;
}
@Override
public void endVisit(PGAnalytic x) {
src/main/java/com/alibaba/druid/sql/dialect/sqlserver/parser/SQLServerExprParser.java
+12
View File
@@ -94,4 +94,16 @@ public class SQLServerExprParser extends SQLExprParser {
return super.nameRest(expr);
}
public boolean isAggreateFunction(String word) {
String[] aggregateFunctions = { "AVG", "COUNT", "MAX", "MIN", "ROW_NUMBER", "STDDEV", "SUM" };
for (int i = 0; i < aggregateFunctions.length; ++i) {
if (aggregateFunctions[i].compareToIgnoreCase(word) == 0) {
return true;
}
}
return false;
}
}
src/main/java/com/alibaba/druid/sql/parser/Keywords.java
+2
View File
@@ -111,6 +111,8 @@ public class Keywords {
map.put("WHEN", Token.WHEN);
map.put("WHERE", Token.WHERE);
map.put("XOR", Token.XOR);
map.put("OVER", Token.OVER);
DEFAULT_KEYWORDS = new Keywords(map);
}
src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java
+31
View File
@@ -27,6 +27,7 @@ import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLName;
import com.alibaba.druid.sql.ast.SQLOrderBy;
import com.alibaba.druid.sql.ast.SQLOrderingSpecification;
import com.alibaba.druid.sql.ast.SQLOver;
import com.alibaba.druid.sql.ast.expr.SQLAggregateExpr;
import com.alibaba.druid.sql.ast.expr.SQLAllColumnExpr;
import com.alibaba.druid.sql.ast.expr.SQLAllExpr;
@@ -696,6 +697,36 @@ public class SQLExprParser extends SQLParser {
exprList(aggregateExpr.getArguments());
accept(Token.RPAREN);
if (lexer.token() == Token.OVER) {
lexer.nextToken();
SQLOver over = new SQLOver();
accept(Token.LPAREN);
if (identifierEquals("PARTITION")) {
lexer.nextToken();
accept(Token.BY);
if (lexer.token() == (Token.LPAREN)) {
lexer.nextToken();
exprList(over.getPartitionBy());
accept(Token.RPAREN);
} else {
exprList(over.getPartitionBy());
}
}
over.setOrderBy(parseOrderBy());
// if (over.getOrderBy() != null) {
// //TODO window
// }
accept(Token.RPAREN);
aggregateExpr.setOver(over);
}
return aggregateExpr;
}
src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java
+18
View File
@@ -24,6 +24,7 @@ import com.alibaba.druid.sql.ast.SQLDataType;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLObject;
import com.alibaba.druid.sql.ast.SQLOrderBy;
import com.alibaba.druid.sql.ast.SQLOver;
import com.alibaba.druid.sql.ast.SQLSetQuantifier;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.ast.expr.SQLAggregateExpr;
@@ -451,6 +452,11 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter {
printAndAccept(x.getArguments(), ", ");
print(")");
if (x.getOver() != null) {
print(" ");
x.getOver().accept(this);
}
return false;
}
@@ -1161,4 +1167,16 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter {
x.getPrimaryKey().accept(this);
return false;
}
@Override
public boolean visit(SQLOver x) {
print("OVER (");
printAndAccept(x.getPartitionBy(), ", ");
print(")");
if (x.getOrderBy() != null) {
print(" ");
x.getOrderBy().accept(this);
}
return false;
}
}
src/main/java/com/alibaba/druid/sql/visitor/SQLASTVisitor.java
+5
View File
@@ -19,6 +19,7 @@ import com.alibaba.druid.sql.ast.SQLCommentHint;
import com.alibaba.druid.sql.ast.SQLDataType;
import com.alibaba.druid.sql.ast.SQLObject;
import com.alibaba.druid.sql.ast.SQLOrderBy;
import com.alibaba.druid.sql.ast.SQLOver;
import com.alibaba.druid.sql.ast.expr.SQLAggregateExpr;
import com.alibaba.druid.sql.ast.expr.SQLAllColumnExpr;
import com.alibaba.druid.sql.ast.expr.SQLAllExpr;
@@ -390,4 +391,8 @@ public interface SQLASTVisitor {
void endVisit(SQLCreateDatabaseStatement x);
boolean visit(SQLCreateDatabaseStatement x);
void endVisit(SQLOver x);
boolean visit(SQLOver x);
}
src/main/java/com/alibaba/druid/sql/visitor/SQLASTVisitorAdapter.java
+10
View File
@@ -19,6 +19,7 @@ import com.alibaba.druid.sql.ast.SQLCommentHint;
import com.alibaba.druid.sql.ast.SQLDataType;
import com.alibaba.druid.sql.ast.SQLObject;
import com.alibaba.druid.sql.ast.SQLOrderBy;
import com.alibaba.druid.sql.ast.SQLOver;
import com.alibaba.druid.sql.ast.expr.SQLAggregateExpr;
import com.alibaba.druid.sql.ast.expr.SQLAllColumnExpr;
import com.alibaba.druid.sql.ast.expr.SQLAllExpr;
@@ -704,4 +705,13 @@ public class SQLASTVisitorAdapter implements SQLASTVisitor {
public void endVisit(SQLAlterTableAddPrimaryKey x) {
}
@Override
public void endVisit(SQLOver x) {
}
@Override
public boolean visit(SQLOver x) {
return true;
}
}
src/test/java/com/alibaba/druid/bvt/sql/OverTest.java
+40
View File
@@ -0,0 +1,40 @@
package com.alibaba.druid.bvt.sql;
import java.util.List;
import junit.framework.Assert;
import junit.framework.TestCase;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.parser.SQLStatementParser;
import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
public class OverTest extends TestCase {
public void test_over() throws Exception {
String sql = "SELECT SalesOrderID, ProductID, OrderQty" + //
" ,SUM(OrderQty) OVER(PARTITION BY SalesOrderID) AS 'Total'" + //
" ,AVG(OrderQty) OVER(PARTITION BY SalesOrderID) AS 'Avg'" + //
" ,COUNT(OrderQty) OVER(PARTITION BY SalesOrderID) AS 'Count'" + //
" ,MIN(OrderQty) OVER(PARTITION BY SalesOrderID) AS 'Min'" + //
" ,MAX(OrderQty) OVER(PARTITION BY SalesOrderID) AS 'Max' " + //
"FROM Sales.SalesOrderDetail " + //
"WHERE SalesOrderID IN(43659,43664);";
SQLStatementParser parser = new SQLStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement statemen = statementList.get(0);
Assert.assertEquals(1, statementList.size());
SchemaStatVisitor visitor = new SchemaStatVisitor();
statemen.accept(visitor);
System.out.println("Tables : " + visitor.getTables());
System.out.println("fields : " + visitor.getColumns());
System.out.println("coditions : " + visitor.getConditions());
Assert.assertEquals(3, visitor.getColumns().size());
Assert.assertEquals(1, visitor.getTables().size());
}
}
src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerRowNumberTest.java
+53
View File
@@ -0,0 +1,53 @@
/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.alibaba.druid.bvt.sql.sqlserver;
import junit.framework.Assert;
import junit.framework.TestCase;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerStatementParser;
import com.alibaba.druid.sql.test.TestUtils;
public class SQLServerRowNumberTest extends TestCase {
public void test_isEmpty() throws Exception {
String sql = "SELECT c.FirstName, c.LastName" + //
" ,ROW_NUMBER() OVER(ORDER BY SalesYTD DESC) AS 'Row Number'" + //
" ,s.SalesYTD, a.PostalCode " + //
"FROM Sales.SalesPerson s " + //
" INNER JOIN Person.Contact c " + //
" ON s.SalesPersonID = c.ContactID" + //
" INNER JOIN Person.Address a " + //
" ON a.AddressID = c.ContactID " + //
"WHERE TerritoryID IS NOT NULL " + //
" AND SalesYTD <> 0;";
String expect = "SELECT c.FirstName, c.LastName, ROW_NUMBER() OVER () ORDER BY SalesYTD DESC AS 'Row Number', s.SalesYTD, a.PostalCode" //
+ "\nFROM Sales.SalesPerson s INNER JOIN Person.Contact c ON s.SalesPersonID = c.ContactID INNER JOIN Person.Address a ON a.AddressID = c.ContactID" //
+ "\nWHERE TerritoryID IS NOT NULL" //
+ "\n\tAND SalesYTD <> 0";
SQLServerStatementParser parser = new SQLServerStatementParser(sql);
SQLStatement stmt = parser.parseStatementList().get(0);
String text = TestUtils.outputSqlServer(stmt);
Assert.assertEquals(expect, text);
System.out.println(text);
}
}