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Implement EXECUTE prepared statements
Syntax: EXECUTE <name> Executes the prepared statement named name. Does not yet support parameters.
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70 changes: 70 additions & 0 deletions
70
presto-main/src/test/java/com/facebook/presto/execution/TestUnwrapExecute.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| /* | ||
| * Licensed 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 com.facebook.presto.execution; | ||
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|
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| import com.facebook.presto.Session; | ||
| import com.facebook.presto.spi.PrestoException; | ||
| import com.facebook.presto.sql.parser.SqlParser; | ||
| import com.facebook.presto.sql.tree.AllColumns; | ||
| import com.facebook.presto.sql.tree.QualifiedName; | ||
| import com.facebook.presto.sql.tree.Statement; | ||
| import org.testng.annotations.Test; | ||
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|
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| import static com.facebook.presto.SessionTestUtils.TEST_SESSION; | ||
| import static com.facebook.presto.execution.SqlQueryManager.unwrapExecuteStatement; | ||
| import static com.facebook.presto.spi.StandardErrorCode.NOT_FOUND; | ||
| import static com.facebook.presto.sql.QueryUtil.selectList; | ||
| import static com.facebook.presto.sql.QueryUtil.simpleQuery; | ||
| import static com.facebook.presto.sql.QueryUtil.table; | ||
| import static org.testng.Assert.assertEquals; | ||
| import static org.testng.Assert.fail; | ||
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| public class TestUnwrapExecute | ||
| { | ||
| private static final SqlParser SQL_PARSER = new SqlParser(); | ||
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| @Test | ||
| public void testSelectStatement() | ||
| throws Exception | ||
| { | ||
| Statement statement = SQL_PARSER.createStatement("SELECT * FROM foo"); | ||
| assertEquals(unwrapExecuteStatement(statement, SQL_PARSER, TEST_SESSION), | ||
| simpleQuery(selectList(new AllColumns()), table(QualifiedName.of("foo")))); | ||
| } | ||
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| @Test | ||
| public void testExecuteStatement() | ||
| throws Exception | ||
| { | ||
| Session session = TEST_SESSION.withPreparedStatement("my_query", "SELECT * FROM foo"); | ||
| Statement statement = SQL_PARSER.createStatement("EXECUTE my_query"); | ||
| assertEquals(unwrapExecuteStatement(statement, SQL_PARSER, session), | ||
| simpleQuery(selectList(new AllColumns()), table(QualifiedName.of("foo")))); | ||
| } | ||
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| @Test | ||
| public void testExecuteStatementDoesNotExist() | ||
| throws Exception | ||
| { | ||
| try { | ||
| Statement statement = SQL_PARSER.createStatement("execute my_query"); | ||
| unwrapExecuteStatement(statement, SQL_PARSER, TEST_SESSION); | ||
| fail("expected exception"); | ||
| } | ||
| catch (PrestoException e) { | ||
| assertEquals(e.getErrorCode(), NOT_FOUND.toErrorCode()); | ||
| } | ||
| } | ||
| } |
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80 changes: 80 additions & 0 deletions
80
presto-parser/src/main/java/com/facebook/presto/sql/tree/Execute.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| /* | ||
| * Licensed 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 com.facebook.presto.sql.tree; | ||
|
|
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| import java.util.Objects; | ||
| import java.util.Optional; | ||
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| import static com.google.common.base.MoreObjects.toStringHelper; | ||
| import static java.util.Objects.requireNonNull; | ||
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| public class Execute | ||
| extends Statement | ||
| { | ||
| private final String name; | ||
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| public Execute(NodeLocation location, String name) | ||
| { | ||
| this(Optional.of(location), name); | ||
| } | ||
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| public Execute(String name) | ||
| { | ||
| this(Optional.empty(), name); | ||
| } | ||
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| private Execute(Optional<NodeLocation> location, String name) | ||
| { | ||
| super(location); | ||
| this.name = requireNonNull(name, "name is null"); | ||
| } | ||
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| public String getName() | ||
| { | ||
| return name; | ||
| } | ||
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| @Override | ||
| public <R, C> R accept(AstVisitor<R, C> visitor, C context) | ||
| { | ||
| return visitor.visitExecute(this, context); | ||
| } | ||
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| @Override | ||
| public int hashCode() | ||
| { | ||
| return Objects.hash(name); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object obj) | ||
| { | ||
| if (this == obj) { | ||
| return true; | ||
| } | ||
| if ((obj == null) || (getClass() != obj.getClass())) { | ||
| return false; | ||
| } | ||
| Execute o = (Execute) obj; | ||
| return Objects.equals(name, o.name); | ||
| } | ||
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| @Override | ||
| public String toString() | ||
| { | ||
| return toStringHelper(this) | ||
| .add("name", name) | ||
| .toString(); | ||
| } | ||
| } |
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