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[FLINK-14711][table] add alter and show function ddl
this closes apache#10231.
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116 changes: 116 additions & 0 deletions
116
...able/flink-sql-parser/src/main/java/org/apache/flink/sql/parser/ddl/SqlAlterFunction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| /* | ||
| * 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.flink.sql.parser.ddl; | ||
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| import org.apache.calcite.sql.SqlCall; | ||
| import org.apache.calcite.sql.SqlCharStringLiteral; | ||
| import org.apache.calcite.sql.SqlIdentifier; | ||
| import org.apache.calcite.sql.SqlKind; | ||
| import org.apache.calcite.sql.SqlNode; | ||
| import org.apache.calcite.sql.SqlOperator; | ||
| import org.apache.calcite.sql.SqlSpecialOperator; | ||
| import org.apache.calcite.sql.SqlWriter; | ||
| import org.apache.calcite.sql.parser.SqlParserPos; | ||
| import org.apache.calcite.util.ImmutableNullableList; | ||
|
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| import javax.annotation.Nonnull; | ||
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| import java.util.List; | ||
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| import static java.util.Objects.requireNonNull; | ||
|
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| /** | ||
| * Alter Function Sql Call. | ||
| */ | ||
| public class SqlAlterFunction extends SqlCall { | ||
|
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| public static final SqlSpecialOperator OPERATOR = new SqlSpecialOperator("ALTER FUNCTION", SqlKind.OTHER); | ||
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| private final SqlIdentifier functionIdentifier; | ||
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| private final SqlCharStringLiteral functionClassName; | ||
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| private final String functionLanguage; | ||
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| private final boolean ifExists; | ||
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| private final boolean isSystemFunction; | ||
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| private final boolean isTemporary; | ||
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| public SqlAlterFunction( | ||
| SqlParserPos pos, | ||
| SqlIdentifier functionIdentifier, | ||
| SqlCharStringLiteral functionClassName, | ||
| String functionLanguage, | ||
| boolean ifExists, | ||
| boolean isTemporary, | ||
| boolean isSystemFunction) { | ||
| super(pos); | ||
| this.functionIdentifier = requireNonNull(functionIdentifier, "functionIdentifier should not be null"); | ||
| this.functionClassName = requireNonNull(functionClassName, "functionClassName should not be null"); | ||
| this.isSystemFunction = requireNonNull(isSystemFunction); | ||
| this.isTemporary = isTemporary; | ||
| this.functionLanguage = functionLanguage; | ||
| this.ifExists = ifExists; | ||
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| } | ||
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| @Nonnull | ||
| @Override | ||
| public SqlOperator getOperator() { | ||
| return OPERATOR; | ||
| } | ||
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| @Override | ||
| public void unparse(SqlWriter writer, int leftPrec, int rightPrec) { | ||
| writer.keyword("ALTER"); | ||
| if (isTemporary) { | ||
| writer.keyword("TEMPORARY"); | ||
| } | ||
| if (isSystemFunction) { | ||
| writer.keyword("SYSTEM"); | ||
| } | ||
| writer.keyword("FUNCTION"); | ||
| if (ifExists) { | ||
| writer.keyword("IF EXISTS"); | ||
| } | ||
| functionIdentifier.unparse(writer, leftPrec, rightPrec); | ||
| writer.keyword("AS"); | ||
| functionClassName.unparse(writer, leftPrec, rightPrec); | ||
| if (functionLanguage != null) { | ||
| writer.keyword("LANGUAGE"); | ||
| writer.keyword(functionLanguage); | ||
| } | ||
| } | ||
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| @Nonnull | ||
| @Override | ||
| public List<SqlNode> getOperandList() { | ||
| return ImmutableNullableList.of(functionIdentifier, functionClassName); | ||
| } | ||
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| public String getLanguage() { | ||
| return functionLanguage; | ||
| } | ||
|
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| public String[] getFunctionIdentifier() { | ||
| return functionIdentifier.names.toArray(new String[0]); | ||
| } | ||
| } |
71 changes: 71 additions & 0 deletions
71
...able/flink-sql-parser/src/main/java/org/apache/flink/sql/parser/dql/SqlShowFunctions.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -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. | ||
| */ | ||
|
|
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| package org.apache.flink.sql.parser.dql; | ||
|
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| import org.apache.calcite.sql.SqlCall; | ||
| import org.apache.calcite.sql.SqlIdentifier; | ||
| import org.apache.calcite.sql.SqlKind; | ||
| import org.apache.calcite.sql.SqlNode; | ||
| import org.apache.calcite.sql.SqlOperator; | ||
| import org.apache.calcite.sql.SqlSpecialOperator; | ||
| import org.apache.calcite.sql.SqlWriter; | ||
| import org.apache.calcite.sql.parser.SqlParserPos; | ||
| import org.apache.calcite.util.ImmutableNullableList; | ||
|
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| import java.util.List; | ||
|
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| /** | ||
| * SHOW FUNCTION Sql Call. | ||
| */ | ||
| public class SqlShowFunctions extends SqlCall { | ||
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| public static final SqlSpecialOperator OPERATOR = new SqlSpecialOperator("SHOW FUNCTIONS", SqlKind.OTHER); | ||
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| private final SqlIdentifier databaseName; | ||
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| public SqlShowFunctions(SqlParserPos pos, SqlIdentifier database) { | ||
| super(pos); | ||
| this.databaseName = database; | ||
| } | ||
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| @Override | ||
| public SqlOperator getOperator() { | ||
| return OPERATOR; | ||
| } | ||
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| @Override | ||
| public List<SqlNode> getOperandList() { | ||
| return ImmutableNullableList.of(databaseName); | ||
| } | ||
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| @Override | ||
| public void unparse( | ||
| SqlWriter writer, | ||
| int leftPrec, | ||
| int rightPrec) { | ||
| writer.keyword("SHOW FUNCTIONS"); | ||
| if (databaseName != null) { | ||
| databaseName.unparse(writer, leftPrec, rightPrec); | ||
| } | ||
| } | ||
|
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| public String[] getDatabasePath() { | ||
| return databaseName.names.toArray(new String[0]); | ||
| } | ||
| } |
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