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Support for federated query NOT operator (#32961)
* Support for federated query NOT operator * Improve not operator sql node converter * Format code
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34 changes: 34 additions & 0 deletions
34
.../org/apache/shardingsphere/sqlfederation/optimizer/function/mysql/MySQLOperatorTable.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.shardingsphere.sqlfederation.optimizer.function.mysql; | ||
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| import org.apache.calcite.sql.util.ReflectiveSqlOperatorTable; | ||
| import org.apache.calcite.sql.validate.SqlUserDefinedFunction; | ||
| import org.apache.shardingsphere.sqlfederation.optimizer.function.mysql.impl.MySQLNotFunction; | ||
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| /** | ||
| * MySQL operator table. | ||
| */ | ||
| public final class MySQLOperatorTable extends ReflectiveSqlOperatorTable { | ||
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| public static final SqlUserDefinedFunction NOT = new MySQLNotFunction(); | ||
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| public MySQLOperatorTable() { | ||
| init(); | ||
| } | ||
| } |
69 changes: 69 additions & 0 deletions
69
...g/apache/shardingsphere/sqlfederation/optimizer/function/mysql/impl/MySQLNotFunction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
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| package org.apache.shardingsphere.sqlfederation.optimizer.function.mysql.impl; | ||
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| import com.google.common.collect.ImmutableList; | ||
| import org.apache.calcite.schema.impl.ScalarFunctionImpl; | ||
| import org.apache.calcite.sql.SqlIdentifier; | ||
| import org.apache.calcite.sql.SqlKind; | ||
| import org.apache.calcite.sql.SqlSyntax; | ||
| import org.apache.calcite.sql.parser.SqlParserPos; | ||
| import org.apache.calcite.sql.type.InferTypes; | ||
| import org.apache.calcite.sql.type.OperandTypes; | ||
| import org.apache.calcite.sql.type.ReturnTypes; | ||
| import org.apache.calcite.sql.type.SqlTypeFamily; | ||
| import org.apache.calcite.sql.type.SqlTypeName; | ||
| import org.apache.calcite.sql.validate.SqlUserDefinedFunction; | ||
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| import java.util.Collections; | ||
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| /** | ||
| * MySQL not function. | ||
| */ | ||
| public final class MySQLNotFunction extends SqlUserDefinedFunction { | ||
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| public MySQLNotFunction() { | ||
| super(new SqlIdentifier("NOT", SqlParserPos.ZERO), SqlKind.NOT, ReturnTypes.BIGINT_NULLABLE, InferTypes.BOOLEAN, | ||
| OperandTypes.operandMetadata(Collections.singletonList(SqlTypeFamily.ANY), typeFactory -> ImmutableList.of(typeFactory.createSqlType(SqlTypeName.BIGINT)), null, arg -> false), | ||
| ScalarFunctionImpl.create(MySQLNotFunction.class, "not")); | ||
| } | ||
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| @Override | ||
| public SqlSyntax getSyntax() { | ||
| return SqlSyntax.PREFIX; | ||
| } | ||
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| /** | ||
| * not. | ||
| * | ||
| * @param value value | ||
| * @return not operator result | ||
| */ | ||
| public static Long not(final Object value) { | ||
| if (null == value) { | ||
| return null; | ||
| } | ||
| if (value instanceof Number) { | ||
| return ((Number) value).longValue() == 0 ? 1L : 0L; | ||
| } | ||
| if (value instanceof Boolean) { | ||
| return ((Boolean) value) ? 0L : 1L; | ||
| } | ||
| return null; | ||
| } | ||
| } |
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