|
| 1 | +/* |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | + * or more contributor license agreements. See the NOTICE file |
| 4 | + * distributed with this work for additional information |
| 5 | + * regarding copyright ownership. The ASF licenses this file |
| 6 | + * to you under the Apache License, Version 2.0 (the |
| 7 | + * "License"); you may not use this file except in compliance |
| 8 | + * with the License. You may obtain a copy of the License at |
| 9 | + * |
| 10 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | + * |
| 12 | + * Unless required by applicable law or agreed to in writing, software |
| 13 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | + * See the License for the specific language governing permissions and |
| 16 | + * limitations under the License. |
| 17 | + */ |
| 18 | + |
| 19 | +/* |
| 20 | + * Licensed to the Apache Software Foundation (ASF) under one |
| 21 | + * or more contributor license agreements. See the NOTICE file |
| 22 | + * distributed with this work for additional information |
| 23 | + * regarding copyright ownership. The ASF licenses this file |
| 24 | + * to you under the Apache License, Version 2.0 (the |
| 25 | + * "License"); you may not use this file except in compliance |
| 26 | + * with the License. You may obtain a copy of the License at |
| 27 | + * |
| 28 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 29 | + * |
| 30 | + * Unless required by applicable law or agreed to in writing, software |
| 31 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 32 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 33 | + * See the License for the specific language governing permissions and |
| 34 | + * limitations under the License. |
| 35 | + */ |
| 36 | + |
1 | 37 | package com.dtstack.flink.sql.util; |
2 | 38 |
|
3 | 39 | import org.apache.calcite.sql.SqlBasicCall; |
4 | 40 | import org.apache.calcite.sql.SqlKind; |
5 | 41 | import org.apache.calcite.sql.SqlNode; |
6 | 42 | import org.apache.commons.lang3.StringUtils; |
7 | 43 |
|
8 | | -import java.util.HashSet; |
9 | 44 | import java.util.List; |
10 | | -import java.util.Set; |
11 | 45 |
|
12 | 46 | /** |
13 | 47 | * @Auther: jiangjunjie |
|
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