Package io.trino.plugin.mysql

Class MySqlClient

java.lang.Object

io.trino.plugin.jdbc.BaseJdbcClient

io.trino.plugin.mysql.MySqlClient

All Implemented Interfaces:

JdbcClient

public class MySqlClient
extends BaseJdbcClient

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MySqlClient.ColumnHistogram

Nested classes/interfaces inherited from class io.trino.plugin.jdbc.BaseJdbcClient

BaseJdbcClient.TopNFunction

Field Summary

Fields inherited from class io.trino.plugin.jdbc.BaseJdbcClient

connectionFactory, identifierQuote, jdbcTypesMappedToVarchar, queryBuilder, queryModifier

Constructor Summary

Constructors

Constructor	Description
MySqlClient(BaseJdbcConfig config, JdbcStatisticsConfig statisticsConfig, ConnectionFactory connectionFactory, QueryBuilder queryBuilder, TypeManager typeManager, IdentifierMapping identifierMapping, RemoteQueryModifier queryModifier)

Method Summary

Modifier and Type	Method	Description
void	abortReadConnection(Connection connection, ResultSet resultSet)
protected void	copyTableSchema(ConnectorSession session, Connection connection, String catalogName, String schemaName, String tableName, String newTableName, List<String> columnNames)
void	createTable(ConnectorSession session, ConnectorTableMetadata tableMetadata)
protected String	createTableSql(RemoteTableName remoteTableName, List<String> columns, ConnectorTableMetadata tableMetadata)
protected boolean	filterSchema(String schemaName)
PreparedStatement	getPreparedStatement(Connection connection, String sql, Optional<Integer> columnCount)
Optional<String>	getTableComment(ResultSet resultSet)
ResultSet	getTables(Connection connection, Optional<String> schemaName, Optional<String> tableName)
protected String	getTableSchemaName(ResultSet resultSet)
TableStatistics	getTableStatistics(ConnectorSession session, JdbcTableHandle handle)
Optional<JdbcExpression>	implementAggregation(ConnectorSession session, AggregateFunction aggregate, Map<String,ColumnHandle> assignments)
Optional<PreparedQuery>	implementJoin(ConnectorSession session, JoinType joinType, PreparedQuery leftSource, PreparedQuery rightSource, List<JdbcJoinCondition> joinConditions, Map<JdbcColumnHandle,String> rightAssignments, Map<JdbcColumnHandle,String> leftAssignments, JoinStatistics statistics)
boolean	isLimitGuaranteed(ConnectorSession session)
protected boolean	isSupportedJoinCondition(ConnectorSession session, JdbcJoinCondition joinCondition)
boolean	isTopNGuaranteed(ConnectorSession session)
protected Optional<BiFunction<String,Long,String>>	limitFunction()
Collection<String>	listSchemas(Connection connection)
protected void	renameColumn(ConnectorSession session, Connection connection, RemoteTableName remoteTableName, String remoteColumnName, String newRemoteColumnName)
void	renameSchema(ConnectorSession session, String schemaName, String newSchemaName)
void	renameTable(ConnectorSession session, JdbcTableHandle handle, SchemaTableName newTableName)
void	setColumnType(ConnectorSession session, JdbcTableHandle handle, JdbcColumnHandle column, Type type)
void	setTableComment(ConnectorSession session, JdbcTableHandle handle, Optional<String> comment)
boolean	supportsAggregationPushdown(ConnectorSession session, JdbcTableHandle table, List<AggregateFunction> aggregates, Map<String,ColumnHandle> assignments, List<List<ColumnHandle>> groupingSets)
boolean	supportsTopN(ConnectorSession session, JdbcTableHandle handle, List<JdbcSortItem> sortOrder)
Optional<ColumnMapping>	toColumnMapping(ConnectorSession session, Connection connection, JdbcTypeHandle typeHandle)
protected Optional<BaseJdbcClient.TopNFunction>	topNFunction()
WriteMapping	toWriteMapping(ConnectorSession session, Type type)

Methods inherited from class io.trino.plugin.jdbc.BaseJdbcClient

addColumn, addColumn, applyQueryTransformations, beginCreateTable, beginInsertTable, buildInsertSql, buildProcedure, buildSql, commitCreateTable, createSchema, createSchema, createTable, createTable, createTableSqls, delete, dropColumn, dropSchema, dropSchema, dropTable, dropTable, escapeObjectNameForMetadataQuery, escapeObjectNameForMetadataQuery, execute, execute, finishInsertTable, getAdditionalPredicate, getCaseSensitivityForColumns, getColumnDefinitionSql, getColumns, getColumns, getColumns, getConnection, getConnection, getConnection, getForcedMappingToVarchar, getIdentifierMapping, getInteger, getMaxWriteParallelism, getProcedureHandle, getSchemaNames, getSplits, getSplits, getTableHandle, getTableHandle, getTableNames, getTableProperties, getTableStatistics, getTableTypes, mapToUnboundedVarchar, postProcessInsertTableNameClause, prepareQuery, prepareQuery, preventTextualTypeAggregationPushdown, quoted, quoted, quoted, renameColumn, renameSchema, renameTable, renameTable, rollbackCreateTable, supportsLimit, supportsRetries, toColumnMappings, truncateTable, varcharLiteral, verifyColumnName, verifySchemaName, verifyTableName

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.trino.plugin.jdbc.JdbcClient

convertPredicate, getSystemTable, getTableScanRedirection, schemaExists, setColumnComment, setTableProperties

Constructor Details

MySqlClient

@Inject
public MySqlClient(BaseJdbcConfig config,
 JdbcStatisticsConfig statisticsConfig,
 ConnectionFactory connectionFactory,
 QueryBuilder queryBuilder,
 TypeManager typeManager,
 IdentifierMapping identifierMapping,
 RemoteQueryModifier queryModifier)

Method Details

implementAggregation

public Optional<JdbcExpression> implementAggregation(ConnectorSession session,
 AggregateFunction aggregate,
 Map<String,ColumnHandle> assignments)

supportsAggregationPushdown

public boolean supportsAggregationPushdown(ConnectorSession session,
 JdbcTableHandle table,
 List<AggregateFunction> aggregates,
 Map<String,ColumnHandle> assignments,
 List<List<ColumnHandle>> groupingSets)

listSchemas

public Collection<String> listSchemas(Connection connection)

Overrides:

listSchemas in class BaseJdbcClient

filterSchema

protected boolean filterSchema(String schemaName)

Overrides:

filterSchema in class BaseJdbcClient

abortReadConnection

public void abortReadConnection(Connection connection,
 ResultSet resultSet)
                         throws SQLException

Throws:

SQLException

getPreparedStatement

public PreparedStatement getPreparedStatement(Connection connection,
 String sql,
 Optional<Integer> columnCount)
                                       throws SQLException

Specified by:

getPreparedStatement in interface JdbcClient

Overrides:

getPreparedStatement in class BaseJdbcClient

Throws:

SQLException

getTables

public ResultSet getTables(Connection connection,
 Optional<String> schemaName,
 Optional<String> tableName)
                    throws SQLException

Overrides:

getTables in class BaseJdbcClient

Throws:

SQLException

getTableComment

public Optional<String> getTableComment(ResultSet resultSet)
                                 throws SQLException

Throws:

SQLException

setTableComment

public void setTableComment(ConnectorSession session,
 JdbcTableHandle handle,
 Optional<String> comment)

getTableSchemaName

protected String getTableSchemaName(ResultSet resultSet)
                             throws SQLException

Overrides:

getTableSchemaName in class BaseJdbcClient

Throws:

SQLException

createTableSql

protected String createTableSql(RemoteTableName remoteTableName,
 List<String> columns,
 ConnectorTableMetadata tableMetadata)

Overrides:

createTableSql in class BaseJdbcClient

toColumnMapping

public Optional<ColumnMapping> toColumnMapping(ConnectorSession session,
 Connection connection,
 JdbcTypeHandle typeHandle)

toWriteMapping

public WriteMapping toWriteMapping(ConnectorSession session,
 Type type)

createTable

public void createTable(ConnectorSession session,
 ConnectorTableMetadata tableMetadata)

Specified by:

createTable in interface JdbcClient

Overrides:

createTable in class BaseJdbcClient

renameColumn

protected void renameColumn(ConnectorSession session,
 Connection connection,
 RemoteTableName remoteTableName,
 String remoteColumnName,
 String newRemoteColumnName)
                     throws SQLException

Overrides:

renameColumn in class BaseJdbcClient

Throws:

SQLException

setColumnType

public void setColumnType(ConnectorSession session,
 JdbcTableHandle handle,
 JdbcColumnHandle column,
 Type type)

Specified by:

setColumnType in interface JdbcClient

Overrides:

setColumnType in class BaseJdbcClient

renameSchema

public void renameSchema(ConnectorSession session,
 String schemaName,
 String newSchemaName)

Specified by:

renameSchema in interface JdbcClient

Overrides:

renameSchema in class BaseJdbcClient

copyTableSchema

protected void copyTableSchema(ConnectorSession session,
 Connection connection,
 String catalogName,
 String schemaName,
 String tableName,
 String newTableName,
 List<String> columnNames)

Overrides:

copyTableSchema in class BaseJdbcClient

renameTable

public void renameTable(ConnectorSession session,
 JdbcTableHandle handle,
 SchemaTableName newTableName)

Specified by:

renameTable in interface JdbcClient

Overrides:

renameTable in class BaseJdbcClient

limitFunction

protected Optional<BiFunction<String,Long,String>> limitFunction()

Overrides:

limitFunction in class BaseJdbcClient

isLimitGuaranteed

public boolean isLimitGuaranteed(ConnectorSession session)

Specified by:

isLimitGuaranteed in interface JdbcClient

Overrides:

isLimitGuaranteed in class BaseJdbcClient

supportsTopN

public boolean supportsTopN(ConnectorSession session,
 JdbcTableHandle handle,
 List<JdbcSortItem> sortOrder)

Specified by:

supportsTopN in interface JdbcClient

Overrides:

supportsTopN in class BaseJdbcClient

topNFunction

protected Optional<BaseJdbcClient.TopNFunction> topNFunction()

Overrides:

topNFunction in class BaseJdbcClient

isTopNGuaranteed

public boolean isTopNGuaranteed(ConnectorSession session)

Specified by:

isTopNGuaranteed in interface JdbcClient

Overrides:

isTopNGuaranteed in class BaseJdbcClient

implementJoin

public Optional<PreparedQuery> implementJoin(ConnectorSession session,
 JoinType joinType,
 PreparedQuery leftSource,
 PreparedQuery rightSource,
 List<JdbcJoinCondition> joinConditions,
 Map<JdbcColumnHandle,String> rightAssignments,
 Map<JdbcColumnHandle,String> leftAssignments,
 JoinStatistics statistics)

Specified by:

implementJoin in interface JdbcClient

Overrides:

implementJoin in class BaseJdbcClient

isSupportedJoinCondition

protected boolean isSupportedJoinCondition(ConnectorSession session,
 JdbcJoinCondition joinCondition)

Overrides:

isSupportedJoinCondition in class BaseJdbcClient

getTableStatistics

public TableStatistics getTableStatistics(ConnectorSession session,
 JdbcTableHandle handle)