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[function](random_bytes)add random_bytes function (#31547)

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SELECT random_bytes(10);

random_bytes(10) |
----------------------+
0x9b8ea00b7d1084bc5b26|
This commit is contained in:
Guangdong Liu
2024-02-29 14:41:25 +08:00
committed by yiguolei
parent 5276cc4db6
commit 9c4708ee74
12 changed files with 255 additions and 2 deletions
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2
fe/fe-core/src/main/java/org/apache/doris/catalog/BuiltinScalarFunctions.java
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@ -318,6 +318,7 @@ import org.apache.doris.nereids.trees.expressions.functions.scalar.QuantileState
import org.apache.doris.nereids.trees.expressions.functions.scalar.Quarter;
import org.apache.doris.nereids.trees.expressions.functions.scalar.Radians;
import org.apache.doris.nereids.trees.expressions.functions.scalar.Random;
import org.apache.doris.nereids.trees.expressions.functions.scalar.RandomBytes;
import org.apache.doris.nereids.trees.expressions.functions.scalar.RegexpExtract;
import org.apache.doris.nereids.trees.expressions.functions.scalar.RegexpExtractAll;
import org.apache.doris.nereids.trees.expressions.functions.scalar.RegexpReplace;
@ -796,6 +797,7 @@ public class BuiltinScalarFunctions implements FunctionHelper {
scalar(SecondTimestamp.class, "second_timestamp"),
scalar(MilliSecondTimestamp.class, "millisecond_timestamp"),
scalar(MicroSecondTimestamp.class, "microsecond_timestamp"),
scalar(RandomBytes.class, "random_bytes"),
scalar(Sha1.class, "sha1", "sha"),
scalar(Sha2.class, "sha2"),
scalar(Sign.class, "sign"),

71
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/RandomBytes.java Normal file
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@ -0,0 +1,71 @@
// 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.trees.expressions.functions.scalar;
import org.apache.doris.catalog.FunctionSignature;
import org.apache.doris.nereids.trees.expressions.Expression;
import org.apache.doris.nereids.trees.expressions.functions.ExplicitlyCastableSignature;
import org.apache.doris.nereids.trees.expressions.functions.PropagateNullable;
import org.apache.doris.nereids.trees.expressions.visitor.ExpressionVisitor;
import org.apache.doris.nereids.types.IntegerType;
import org.apache.doris.nereids.types.StringType;
import org.apache.doris.nereids.types.VarcharType;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import java.util.List;
/**
* ScalarFunction 'random_bytes'. This class is generated by GenerateFunction.
*/
public class RandomBytes extends ScalarFunction
implements ExplicitlyCastableSignature, PropagateNullable {
public static final List<FunctionSignature> SIGNATURES = ImmutableList.of(
FunctionSignature.ret(StringType.INSTANCE).args(IntegerType.INSTANCE),
FunctionSignature.ret(VarcharType.SYSTEM_DEFAULT).args(IntegerType.INSTANCE)
);
/**
* constructor with 1 argument.
*/
public RandomBytes(Expression arg0) {
super("random_bytes", arg0);
}
/**
* withChildren.
*/
@Override
public RandomBytes withChildren(List<Expression> children) {
Preconditions.checkArgument(children.size() == 1);
return new RandomBytes(children.get(0));
}
@Override
public List<FunctionSignature> getSignatures() {
return SIGNATURES;
}
@Override
public <R, C> R accept(ExpressionVisitor<R, C> visitor, C context) {
return visitor.visitRandomBytes(this, context);
}
}

5
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/visitor/ScalarFunctionVisitor.java
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@ -317,6 +317,7 @@ import org.apache.doris.nereids.trees.expressions.functions.scalar.QuantileState
import org.apache.doris.nereids.trees.expressions.functions.scalar.Quarter;
import org.apache.doris.nereids.trees.expressions.functions.scalar.Radians;
import org.apache.doris.nereids.trees.expressions.functions.scalar.Random;
import org.apache.doris.nereids.trees.expressions.functions.scalar.RandomBytes;
import org.apache.doris.nereids.trees.expressions.functions.scalar.RegexpExtract;
import org.apache.doris.nereids.trees.expressions.functions.scalar.RegexpExtractAll;
import org.apache.doris.nereids.trees.expressions.functions.scalar.RegexpReplace;
@ -1592,6 +1593,10 @@ public interface ScalarFunctionVisitor<R, C> {
return visitScalarFunction(urlDecode, context);
}
default R visitRandomBytes(RandomBytes randomBytes, C context) {
return visitScalarFunction(randomBytes, context);
}
default R visitPassword(Password password, C context) {
return visitScalarFunction(password, context);
}