Merge branch 'hotfix_1.10_4.0.x_33465' into '1.10_release_4.0.x'

[fix-33465][core]别名使用AS字符串切割问题修复

See merge request dt-insight-engine/flinkStreamSQL!199

Author: zoudaokoulife

core/src/main/java/com/dtstack/flink/sql/side/JoinNodeDealer.java

@@ -979,7 +979,12 @@ private SqlIdentifier checkAndReplaceJoinCondition(SqlNode node, Map<String, Str
     public Map<String, String> buildTmpTableFieldRefOriField(Set<String> fieldSet, String newTableAliasName){
         Map<String, String> refInfo = Maps.newConcurrentMap();
         for(String field : fieldSet){
-            String[] fields = StringUtils.splitByWholeSeparator(field, " as ");
+            String[] fields;
+            if (StringUtils.contains(field, " AS ")) {
+                fields = StringUtils.splitByWholeSeparator(field, " AS ");
+            } else {
+                fields = StringUtils.splitByWholeSeparator(field, " as ");
+            }
             if (fields != null) {
                 fields = Stream
                         .of(fields)