价格走势

@@ -22,7 +22,7 @@
     </if>
     AND create_time &gt;= #{startTime, jdbcType=INTEGER}
     AND create_time &lt;  #{endTime, jdbcType=INTEGER}
-    <if test="sizeId = null or sizeId =''">
+    <if test="sizeId == null or sizeId == ''">
       GROUP BY product_id, create_time
     </if>
     ORDER BY create_time ASC

@@ -23,7 +23,7 @@
     </if>
     AND create_time &gt;= #{startTime, jdbcType=INTEGER}
     AND create_time &lt;  #{endTime, jdbcType=INTEGER}
-    <if test="sizeId = null or sizeId =''">
+    <if test="sizeId == null or sizeId == ''">
       GROUP BY product_id, create_time
     </if>
     ORDER BY create_time ASC

@@ -23,7 +23,7 @@
     </if>
     AND create_time &gt;= #{startTime, jdbcType=INTEGER}
     AND create_time &lt;  #{endTime, jdbcType=INTEGER}
-    <if test="sizeId = null or sizeId =''">
+    <if test="sizeId == null or sizeId == ''">
       GROUP BY product_id, create_time
     </if>
     ORDER BY create_time ASC

@@ -23,7 +23,7 @@
     </if>
     AND create_time &gt;= #{startTime, jdbcType=INTEGER}
     AND create_time &lt;  #{endTime, jdbcType=INTEGER}
-    <if test="sizeId = null or sizeId =''">
+    <if test="sizeId == null or sizeId == ''">
       GROUP BY product_id, create_time
     </if>
     ORDER BY create_time ASC

@@ -5,6 +5,6 @@
 <configuration>
     <settings>
         <setting name="defaultStatementTimeout" value="10"/> <!-- seconds -->
-        <setting name="logImpl" value="STDOUT_LOGGING" />
+       <setting name="logImpl" value="STDOUT_LOGGING" />  <!-- 在控制台打印sql语句 -->
     </settings>
 </configuration>
\ No newline at end of file