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Support truncating table in Cassandra #11425

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merged 1 commit into from
Mar 12, 2022
Merged

Support truncating table in Cassandra #11425

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1 change: 1 addition & 0 deletions docs/src/main/sphinx/connector/cassandra.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -274,6 +274,7 @@ statements, the connector supports the following features:

* :doc:`/sql/insert`
* :doc:`/sql/delete` see :ref:`sql-delete-limitation`
* :doc:`/sql/truncate`
* :doc:`/sql/create-table`
* :doc:`/sql/create-table-as`
* :doc:`/sql/drop-table`
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8 changes: 8 additions & 0 deletions plugin/trino-cassandra/src/main/java/io/trino/plugin/cassandra/CassandraMetadata.java
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Expand Up @@ -50,6 +50,7 @@
import java.util.OptionalLong;
import java.util.stream.Collectors;

import static com.datastax.driver.core.querybuilder.QueryBuilder.truncate;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.collect.ImmutableList.toImmutableList;
import static com.google.common.collect.MoreCollectors.toOptional;
Expand Down Expand Up @@ -319,6 +320,13 @@ public Optional<ConnectorOutputMetadata> finishCreateTable(ConnectorSession sess
return Optional.empty();
}

@Override
public void truncateTable(ConnectorSession session, ConnectorTableHandle tableHandle)
{
CassandraTableHandle table = (CassandraTableHandle) tableHandle;
cassandraSession.execute(truncate(table.getSchemaName(), table.getTableName()));
}

@Override
public ConnectorInsertTableHandle beginInsert(ConnectorSession session, ConnectorTableHandle tableHandle)
{
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3 changes: 3 additions & 0 deletions ...n/trino-cassandra/src/test/java/io/trino/plugin/cassandra/TestCassandraConnectorTest.java
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Expand Up @@ -86,6 +86,9 @@ public class TestCassandraConnectorTest
protected boolean hasBehavior(TestingConnectorBehavior connectorBehavior)
{
switch (connectorBehavior) {
case SUPPORTS_TRUNCATE:
return true;

case SUPPORTS_CREATE_SCHEMA:
return false;

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