delete getLogicTableName()

sharding-core/sharding-core-rewrite/src/main/java/org/apache/shardingsphere/core/rewrite/SQLRewriteEngine.java

@@ -329,7 +329,7 @@ public final class SQLRewriteEngine {
         if (!isRewrite) {
             sqlBuilder.appendLiterals(originalSQL.substring(distinctToken.getStartIndex(), distinctToken.getStopIndex() + 1)); 
         } else {
-            sqlBuilder.appendPlaceholder(new AggregationDistinctPlaceholder(distinctToken.getColumnName().toLowerCase(), null, distinctToken.getAlias()));
+            sqlBuilder.appendPlaceholder(new AggregationDistinctPlaceholder(distinctToken.getColumnName().toLowerCase(), distinctToken.getAlias()));
         }
         appendRest(sqlBuilder, count, getStopIndex(distinctToken));
     }

sharding-core/sharding-core-rewrite/src/main/java/org/apache/shardingsphere/core/rewrite/placeholder/AggregationDistinctPlaceholder.java

@@ -32,8 +32,6 @@ public final class AggregationDistinctPlaceholder implements ShardingPlaceholder
     
     private final String columnName;
     
-    private final String logicTableName;
-    
     private final Optional<String> alias;
     
     @Override

sharding-core/sharding-core-rewrite/src/main/java/org/apache/shardingsphere/core/rewrite/placeholder/EncryptUpdateItemColumnPlaceholder.java

@@ -30,8 +30,6 @@ import lombok.RequiredArgsConstructor;
 @Getter
 public final class EncryptUpdateItemColumnPlaceholder implements ShardingPlaceholder {
     
-    private final String logicTableName;
-    
     private final String columnName;
     
     private final Comparable<?> columnValue;

sharding-core/sharding-core-rewrite/src/main/java/org/apache/shardingsphere/core/rewrite/placeholder/EncryptWhereColumnPlaceholder.java

@@ -34,8 +34,6 @@ import java.util.Map;
 @Getter
 public final class EncryptWhereColumnPlaceholder implements ShardingPlaceholder {
     
-    private final String logicTableName;
-    
     private final String columnName;
     
     private final Map<Integer, Comparable<?>> indexValues;

sharding-core/sharding-core-rewrite/src/main/java/org/apache/shardingsphere/core/rewrite/placeholder/LimitOffsetPlaceholder.java

@@ -35,9 +35,4 @@ public final class LimitOffsetPlaceholder implements ShardingPlaceholder {
     public String toString() {
         return String.valueOf(offset);
     }
-    
-    @Override
-    public String getLogicTableName() {
-        return "";
-    }
 }

sharding-core/sharding-core-rewrite/src/main/java/org/apache/shardingsphere/core/rewrite/placeholder/LimitRowCountPlaceholder.java

@@ -35,9 +35,4 @@ public final class LimitRowCountPlaceholder implements ShardingPlaceholder {
     public String toString() {
         return String.valueOf(rowCount);
     }
-    
-    @Override
-    public String getLogicTableName() {
-        return "";
-    }
 }

sharding-core/sharding-core-rewrite/src/main/java/org/apache/shardingsphere/core/rewrite/placeholder/OrderByPlaceholder.java

@@ -50,9 +50,4 @@ public final class OrderByPlaceholder implements ShardingPlaceholder {
         result.append(" ");
         return result.toString();
     }
-    
-    @Override
-    public String getLogicTableName() {
-        return "";
-    }
 }

sharding-core/sharding-core-rewrite/src/main/java/org/apache/shardingsphere/core/rewrite/placeholder/SelectItemsPlaceholder.java

@@ -49,9 +49,4 @@ public final class SelectItemsPlaceholder implements ShardingPlaceholder {
         }
         return result.toString();
     }
-    
-    @Override
-    public String getLogicTableName() {
-        return "";
-    }
 }

sharding-core/sharding-core-rewrite/src/main/java/org/apache/shardingsphere/core/rewrite/placeholder/ShardingPlaceholder.java

@@ -21,13 +21,7 @@ package org.apache.shardingsphere.core.rewrite.placeholder;
  * Sharding placeholder for rewrite.
  *
  * @author zhangliang
+ * @author panjuan
  */
 public interface ShardingPlaceholder {
-    
-    /**
-     * Get logic table name.
-     * 
-     * @return logic table name
-     */
-    String getLogicTableName();
 }