morrySnow commented on code in PR #20860:
URL: https://github.com/apache/doris/pull/20860#discussion_r1231721692
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/Match.java:
##########
@@ -60,22 +57,24 @@ public DataType getDataType() throws UnboundException {
return BooleanType.INSTANCE;
}
+ @Override
+ public AbstractDataType inputType() {
+ return AnyDataType.INSTANCE;
+ }
+
@Override
public boolean nullable() throws UnboundException {
- Preconditions.checkArgument(children.size() == 2);
- return (children.get(0).nullable() || children.get(1).nullable());
+ return left().nullable() || right().nullable();
Review Comment:
just use trait `PropagateNullable`
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/expression/rules/FunctionBinder.java:
##########
@@ -241,4 +242,27 @@ public Expression visitInSubquery(InSubquery inSubquery,
ExpressionRewriteContex
inSubquery.getCorrelateSlots(), ((ListQuery)
afterTypeCoercion.right()).getTypeCoercionExpr(),
inSubquery.isNot());
}
+
+ @Override
+ public Expression visitMatch(Match match, ExpressionRewriteContext
context) {
+ Expression left = match.left().accept(this, context);
+ Expression right = match.right().accept(this, context);
+ // check child type
+ if (!left.getDataType().isCharType() &&
!left.getDataType().isVarcharType()
+ && !left.getDataType().isStringType()) {
Review Comment:
```suggestion
if (!left.isStringLikeType()) {
```
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/CheckMatchExpression.java:
##########
@@ -0,0 +1,61 @@
+// 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.
+
+package org.apache.doris.nereids.rules.rewrite;
+
+import org.apache.doris.nereids.exceptions.AnalysisException;
+import org.apache.doris.nereids.rules.Rule;
+import org.apache.doris.nereids.rules.RuleType;
+import org.apache.doris.nereids.trees.expressions.Expression;
+import org.apache.doris.nereids.trees.expressions.Match;
+import org.apache.doris.nereids.trees.expressions.SlotReference;
+import org.apache.doris.nereids.trees.expressions.literal.Literal;
+import org.apache.doris.nereids.trees.plans.logical.LogicalFilter;
+
+import java.util.List;
+
+/**
+ * Check match expression
+ */
+public class CheckMatchExpression extends OneRewriteRuleFactory {
+
+ @Override
+ public Rule build() {
+ return logicalFilter(logicalOlapScan())
+ .when(filter ->
containsMatchExpression(filter.getExpressions()))
+ .then(filter ->
checkChildren(filter)).toRule(RuleType.CHECK_MATCH_EXPRESSION);
Review Comment:
```suggestion
.when(filter ->
containsMatchExpression(filter.getExpressions()))
.then(this::checkChildren)
.toRule(RuleType.CHECK_MATCH_EXPRESSION);
```
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