Caideyipi commented on code in PR #17936: URL: https://github.com/apache/iotdb/pull/17936#discussion_r3464931638
########## iotdb-core/relational-grammar/src/main/antlr4/org/apache/iotdb/db/relational/grammar/sql/ColumnFilter.g4: ########## @@ -0,0 +1,88 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +grammar ColumnFilter; + +options { caseInsensitive = true; } + +columnFilter + : booleanExpression EOF + ; + +booleanExpression + : NOT booleanExpression #logicalNot + | booleanExpression AND booleanExpression #logicalBinary + | booleanExpression OR booleanExpression #logicalBinary + | predicate #predicateExpression + ; + +predicate + : booleanValue + | field comparisonOperator string + | field NOT? IN '(' string (',' string)* ')' + | field NOT? LIKE string (ESCAPE string)? + | field NOT? REGEXP string + | field IS NOT? NULL + | '(' booleanExpression ')' + ; + Review Comment: Generic function calls are not exposed by the user grammar. The `FunctionCall` path is only the internal AST representation for `REGEXP` as `regexp_like(field, pattern)`; arbitrary function-call syntax is rejected before evaluation. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
