Removing CR/LF from column names

h2/src/main/org/h2/command/CommandContainer.java

@@ -102,7 +102,6 @@ public class CommandContainer extends Command {
         int updateCount = prepared.update();
         prepared.trace(startTimeNanos, updateCount);
         setProgress(DatabaseEventListener.STATE_STATEMENT_END);
-        System.out.println("CommandContainer.update.end");
         return updateCount;
     }
 
@@ -115,14 +114,11 @@ public class CommandContainer extends Command {
         ResultInterface result = prepared.query(maxrows);
         prepared.trace(startTimeNanos, result.isLazy() ? 0 : result.getRowCount());
         setProgress(DatabaseEventListener.STATE_STATEMENT_END);
-        System.out.println("CommandContainer.query.end");
         return result;
     }
 
     @Override
     public void stop() {
-        System.out.println("CommandContainer.stop.stop");
-        super.stop();
         // Clean up after the command was run in the session.
         // Must restart query (and dependency construction) to reuse.
         if (prepared.getCteCleanups() != null) {
@@ -130,14 +126,11 @@ public class CommandContainer extends Command {
                 // check if view was previously deleted as their name is set to
                 // null
                 if (view.getName() != null) {
-                    System.out.println("!!!!!!!removeLocalTempTable.worked="+view.getName());
                     session.removeLocalTempTable(view);
                 }
-                else{
-                    System.out.println("!!!!!!!removeLocalTempTable=(null local name)"+view.toString());
-                }
             }
         }
+        super.stop();
     }
 
     @Override

h2/src/main/org/h2/command/Parser.java

@@ -4938,7 +4938,6 @@ public class Parser {
             Query query = parseSelectUnion();
             query.setPrepareAlways(true);
             query.setNeverLazy(true);
-            System.out.println("class="+query.getClass());
             p = query;
         }
         else if(readIf("INSERT")) {
@@ -5048,11 +5047,11 @@ public class Parser {
         // No easy way to determine if this is a recursive query up front, so we just compile
         // it twice - once without the flag set, and if we didn't see a recursive term,
         // then we just compile it again.
-        System.out.println("parseSingleCommonTableExpression.querySQL="+querySQL);
         TableView view = new TableView(schema, id, tempViewName, querySQL,
                 parameters, columnTemplateList.toArray(new Column[0]), session,
                 true/* recursive */, false);
         if (!view.isRecursiveQueryDetected()) {
+            session.removeLocalTempTable(view);
             view = new TableView(schema, id, tempViewName, querySQL, parameters,
                     columnTemplateList.toArray(new Column[0]), session,
                     false/* recursive */, false);
@@ -5060,7 +5059,8 @@ public class Parser {
         view.setTableExpression(true);
         view.setTemporary(true);
         session.addLocalTempTable(view);
-        view.setOnCommitDrop(true);
+        view.setOnCommitDrop(false);
+        view.setHidden(true);
         return view;
     }
 

h2/src/main/org/h2/command/Prepared.java

@@ -445,10 +445,6 @@ public abstract class Prepared {
      * Get the temporary views created for CTE's.
      */
     public List<TableView> getCteCleanups() {
-        System.out.println("getCteCleanups:"+cteCleanups);
-        if(cteCleanups!=null){
-            System.out.println("getCteCleanups:"+cteCleanups.size());
-        }
         return cteCleanups;
     }
 

h2/src/main/org/h2/command/dml/Select.java

@@ -839,13 +839,9 @@ public class Select extends Query {
         for (int i = 0; i < expressions.size(); i++) {
             Expression e = expressions.get(i);
             String columnName = ColumnNamer.getColumnName(e,i,null);            
-            if(!ColumnNamer.isReasonableColumnName(e.getAlias())){
-                System.out.println("Added alias="+columnName);
+            if(!ColumnNamer.isAllowableColumnName(e.getAlias())){
                 e = new Alias(e,columnName,true);
             }
-            else{
-                System.out.println("Acceptable column name="+columnName);
-            }
             expressions.set(i, e.optimize(session));
         }
         if (condition != null) {

h2/src/main/org/h2/engine/Session.java

@@ -364,7 +364,6 @@ public class Session extends SessionWithState {
                     table.getSQL());
         }
         modificationId++;
-        System.out.println("addLocalTempTable.worked="+table.getName()+table.toString());
         localTempTables.put(table.getName(), table);
     }
 

h2/src/main/org/h2/table/TableView.java

@@ -417,13 +417,6 @@ public class TableView extends Table {
 
     @Override
     public void removeChildrenAndResources(Session session) {
-        System.out.println("invalidating="+getName());
-        try{
-            throw new RuntimeException("snapshot");           
-        }
-        catch(RuntimeException e){
-            e.printStackTrace();
-        }
         removeViewFromTables();
         super.removeChildrenAndResources(session);
         database.removeMeta(session, getId());
@@ -447,8 +440,6 @@ public class TableView extends Table {
     @Override
     public String getSQL() {
         if (isTemporary()) {
-            System.out.println("table view name="+getName());
-            System.out.println(this.toString()+".getSQL().querySQL="+querySQL);
             return "(\n" + StringUtils.indent(querySQL) + ")";
         }
         return super.getSQL();
@@ -512,11 +503,8 @@ public class TableView extends Table {
 
     private void removeViewFromTables() {
         if (tables != null) {
-            System.out.println("removeViewFromTables.tables="+tables);
-            System.out.println("removeViewFromTables.this="+this);
             for (Table t : tables) {
                 t.removeView(this);
-                System.out.println("removeViewFromTables.tables."+t.getName()+"="+t.getViews());
             }
             tables.clear();
         }

h2/src/main/org/h2/util/ColumnNamer.java

@@ -13,13 +13,16 @@ public class ColumnNamer {
         }  
         if (columnName==null && columnExp.getAlias()!=null){
             columnName = columnExp.getAlias();
-            if(!isReasonableColumnName(columnName)){
+            if(!isAllowableColumnName(columnName)){
                 columnName = null;
             }
         }
         if (columnName==null && columnExp.getColumnName()!=null){
              columnName =  columnExp.getColumnName();
-             if(!isReasonableColumnName(columnName)){
+             if(!isAllowableColumnName(columnName)){
+                 columnName = columnName.replace('\n', ' ').replace('\r', ' ');
+             }
+             if(!isAllowableColumnName(columnName)){
                  columnName = null;
              }
         }
@@ -29,15 +32,16 @@ public class ColumnNamer {
         return columnName;
     }
     
-    private static Pattern reasonableNamePatternRE = Pattern.compile("[A-Z_][A-Z0-9_]*");
-
-    public static boolean isReasonableColumnName(String proposedName){
+    //private static final Pattern reasonableNameCharactersPatternRE = Pattern.compile("[a-zA-Z0-9_'\\(\\)\\*,\\.\\+\\-\\*/:=\\<\\>!\\|@ \\t\\?\"\\$]*");
+    
+    public static boolean isAllowableColumnName(String proposedName){
         if (proposedName == null){
             return false;
         }
-        Matcher m = reasonableNamePatternRE.matcher(proposedName.toUpperCase());
-        boolean isReasonableName = m.matches();
-        return isReasonableName;
+        if(proposedName.contains("\n") || proposedName.contains("\r")){
+            return false;
+        }
+        return true;
     }
 
 }

h2/src/test/org/h2/test/db/TestGeneralCommonTableQueries.java

@@ -9,7 +9,6 @@ import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.Statement;
-
 import org.h2.jdbc.JdbcSQLException;
 import org.h2.test.TestBase;
 
@@ -219,7 +218,7 @@ public class TestGeneralCommonTableQueries extends TestBase {
             assertEquals(n, rs.getInt(1));
         }
         assertEquals("X",rs.getMetaData().getColumnLabel(1));
-        assertEquals("_unnamed_column_2_",rs.getMetaData().getColumnLabel(2));
+        assertEquals("'T1'",rs.getMetaData().getColumnLabel(2));
 
         assertFalse(rs.next());
 
@@ -511,32 +510,39 @@ public class TestGeneralCommonTableQueries extends TestBase {
             +"FROM A                                   \n"
             +"GROUP BY A.val";
 
-        for(int queryTries: new int[]{1,2,3}){
-            System.out.println("Try#"+queryTries);
-            
+        for(@SuppressWarnings("unused") int queryRunTries: new int[]{1,2,3}){
             Statement stat = conn.createStatement();
             stat.execute(SETUP_SQL);
-            
+            stat.close();
+
             prep = conn.prepareStatement(WITH_QUERY);
 
             rs = prep.executeQuery();
             for(int columnIndex = 1; columnIndex <= rs.getMetaData().getColumnCount(); columnIndex++){
-                System.out.print("|"+rs.getMetaData().getColumnLabel(columnIndex));
-            }            
-            System.out.println();
+                // previously the column label was null or had \n or \r in the string
+                assertTrue(rs.getMetaData().getColumnLabel(columnIndex)!=null);
+                assertFalse(rs.getMetaData().getColumnLabel(columnIndex).contains("\n"));
+                assertFalse(rs.getMetaData().getColumnLabel(columnIndex).contains("\r"));
+            }
+            
+            int rowNdx=0;
             while (rs.next()) {
-                //assertTrue(rs.next());
-                //assertContains("ab",rs.getString(1));
-                //assertEquals(rs.getString(1),keyLetter);
-                //assertTrue(rs.getInt(2)!=0);
+                StringBuffer buf = new StringBuffer();
                 for(int columnIndex = 1; columnIndex <= rs.getMetaData().getColumnCount(); columnIndex++){
-                    System.out.print("|"+rs.getString(columnIndex));
+                    buf.append("|"+rs.getString(columnIndex));
                 }
-                System.out.println();
-            }            
+                String[] expectedRow =new String[]{"|meat|null","|fruit|3","|veg|2"};
+                assertEquals(expectedRow[rowNdx], buf.toString());
+                rowNdx++;
+            }
+            assertEquals(3,rowNdx);
+            rs.close();
+            prep.close();
         }
 
         conn.close();
+        //System.out.println("conn.close();");
         deleteDb("commonTableExpressionQueries");
+        //System.out.println("deleteDb(commonTableExpressionQueries);");
     }     
 }
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