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create new function registry mechansim
1. FunctionRegistry keeps the old FUNCTION_INFO_MAP only 2. moved Calcite Catalog-based schema.Function registry to its own package; along with a SqlOperator based PinotOperatorTable 3. both CatalogReader and OperatorTable utilizes ground truth function from PinotFunctionRegistry --> will be default once deprecate FunctionRegistry 4. PinotFunctionRegistry provides argument-type based lookup via the same method SqlValidator utilize to lookup routine (and lookup operator overload) 5. clean up multi-stage engine side accordingly
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Rong Rong
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Jan 4, 2024
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pinot-common/src/main/java/org/apache/pinot/common/function/registry/PinotFunction.java
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/** | ||
* 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.pinot.common.function.registry; | ||
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import org.apache.calcite.schema.Function; | ||
import org.apache.calcite.sql.type.SqlOperandTypeChecker; | ||
import org.apache.calcite.sql.type.SqlReturnTypeInference; | ||
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public interface PinotFunction extends Function { | ||
SqlOperandTypeChecker getOperandTypeChecker(); | ||
SqlReturnTypeInference getReturnTypeInference(); | ||
} |
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...t-common/src/main/java/org/apache/pinot/common/function/registry/PinotScalarFunction.java
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/** | ||
* 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.pinot.common.function.registry; | ||
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import java.lang.reflect.Method; | ||
import org.apache.calcite.rel.type.RelDataType; | ||
import org.apache.calcite.rel.type.RelDataTypeFactory; | ||
import org.apache.calcite.schema.ScalarFunction; | ||
import org.apache.calcite.schema.impl.ReflectiveFunctionBase; | ||
import org.apache.calcite.sql.type.SqlOperandTypeChecker; | ||
import org.apache.calcite.sql.type.SqlReturnTypeInference; | ||
import org.apache.pinot.common.function.FunctionInfo; | ||
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/** | ||
* Pinot specific implementation of the {@link ScalarFunction}. | ||
* | ||
* @see "{@link org.apache.calcite.schema.impl.ScalarFunctionImpl}" | ||
*/ | ||
public class PinotScalarFunction extends ReflectiveFunctionBase implements PinotFunction, ScalarFunction { | ||
private final FunctionInfo _functionInfo; | ||
private final String _name; | ||
private final Method _method; | ||
private final SqlOperandTypeChecker _sqlOperandTypeChecker; | ||
private final SqlReturnTypeInference _sqlReturnTypeInference; | ||
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public PinotScalarFunction(String name, Method method, boolean isNullableParameter) { | ||
this(name, method, isNullableParameter, null, null); | ||
} | ||
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public PinotScalarFunction(String name, Method method, boolean isNullableParameter, | ||
SqlOperandTypeChecker sqlOperandTypeChecker, SqlReturnTypeInference sqlReturnTypeInference) { | ||
super(method); | ||
_name = name; | ||
_method = method; | ||
_functionInfo = new FunctionInfo(method, method.getDeclaringClass(), isNullableParameter); | ||
_sqlOperandTypeChecker = sqlOperandTypeChecker; | ||
_sqlReturnTypeInference = sqlReturnTypeInference; | ||
} | ||
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@Override | ||
public RelDataType getReturnType(RelDataTypeFactory typeFactory) { | ||
return typeFactory.createJavaType(method.getReturnType()); | ||
} | ||
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public String getName() { | ||
return _name; | ||
} | ||
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public Method getMethod() { | ||
return _method; | ||
} | ||
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public FunctionInfo getFunctionInfo() { | ||
return _functionInfo; | ||
} | ||
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@Override | ||
public SqlOperandTypeChecker getOperandTypeChecker() { | ||
return _sqlOperandTypeChecker; | ||
} | ||
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@Override | ||
public SqlReturnTypeInference getReturnTypeInference() { | ||
return _sqlReturnTypeInference; | ||
} | ||
} |
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