diff --git a/core/src/main/java/com/dtstack/flink/sql/side/BaseSideInfo.java b/core/src/main/java/com/dtstack/flink/sql/side/BaseSideInfo.java
index c32e72504..8579afe8f 100644
--- a/core/src/main/java/com/dtstack/flink/sql/side/BaseSideInfo.java
+++ b/core/src/main/java/com/dtstack/flink/sql/side/BaseSideInfo.java
@@ -24,7 +24,12 @@
 import com.google.common.base.Preconditions;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
-import org.apache.calcite.sql.*;
+import org.apache.calcite.sql.JoinType;
+import org.apache.calcite.sql.SqlBasicCall;
+import org.apache.calcite.sql.SqlIdentifier;
+import org.apache.calcite.sql.SqlKind;
+import org.apache.calcite.sql.SqlLiteral;
+import org.apache.calcite.sql.SqlNode;
 import org.apache.calcite.util.NlsString;
 import org.apache.flink.api.java.typeutils.RowTypeInfo;
 import org.apache.flink.table.runtime.typeutils.BaseRowTypeInfo;
@@ -218,22 +223,6 @@ private void checkSupport(SqlIdentifier identifier) {
         Preconditions.checkState(isSide, errorMsg);
     }
 
-    private void checkSupport(SqlIdentifier identifier) {
-        String tableName = identifier.getComponent(0).getSimple();
-        String sideTableName;
-        String sideTableAlias;
-        if (joinInfo.isLeftIsSideTable()) {
-            sideTableName = joinInfo.getLeftTableName();
-            sideTableAlias = joinInfo.getLeftTableAlias();
-        } else {
-            sideTableName = joinInfo.getRightTableName();
-            sideTableAlias = joinInfo.getRightTableAlias();
-        }
-        boolean isSide = tableName.equals(sideTableName) || tableName.equals(sideTableAlias);
-        String errorMsg = "only support set side table constant field, error field " + identifier;
-        Preconditions.checkState(isSide, errorMsg);
-    }
-
     private void associateField(String sourceTableField, String sideTableField, SqlNode sqlNode) {
         String errorMsg = "can't deal equal field: " + sqlNode;
         equalFieldList.add(sideTableField);
diff --git a/docs/quickStart.md b/docs/quickStart.md
index a5bf1fa9a..8b5f3db24 100644
--- a/docs/quickStart.md
+++ b/docs/quickStart.md
@@ -1,3 +1,8 @@
+# 通知！！！
+因该项目与FlinkX项目合并统一，即 2021-07-01 起， 1.12.x 版本之后，项目迁移到 FlinkX 项目中。
+
+FlinkStreamSQL 项目推荐使用版本 1.10_release（为最新稳定版本）。
+
 ### 1.1 运行模式
 
 * 本地模式：通常用于本地开发调试(--mode:local)