io.prestosql.plugin.hive

Class HiveMetadata

java.lang.Object

io.prestosql.plugin.hive.HiveMetadata

All Implemented Interfaces:

TransactionalMetadata, ConnectorMetadata

public class HiveMetadata
extends Object
implements TransactionalMetadata

Field Summary

Fields

Modifier and Type	Field and Description
static String	AVRO_SCHEMA_URL_KEY
static String	BUCKETING_VERSION
static String	DELTA_LAKE_PROVIDER
static String	PRESTO_QUERY_ID_NAME
static String	PRESTO_VERSION_NAME
static String	SKIP_FOOTER_COUNT_KEY
static String	SKIP_HEADER_COUNT_KEY
static String	SPARK_TABLE_PROVIDER_KEY
static String	TABLE_COMMENT

Constructor Summary

Constructors

Constructor and Description

HiveMetadata(CatalogName catalogName, SemiTransactionalHiveMetastore metastore, HdfsEnvironment hdfsEnvironment, HivePartitionManager partitionManager, org.joda.time.DateTimeZone timeZone, boolean allowCorruptWritesForTesting, boolean writesToNonManagedTablesEnabled, boolean createsOfNonManagedTablesEnabled, boolean translateHiveViews, TypeManager typeManager, LocationService locationService, io.airlift.json.JsonCodec<PartitionUpdate> partitionUpdateCodec, TypeTranslator typeTranslator, String prestoVersion, HiveStatisticsProvider hiveStatisticsProvider, AccessControlMetadata accessControlMetadata)

Method Summary

Modifier and Type	Method and Description
void	addColumn(ConnectorSession session, ConnectorTableHandle tableHandle, ColumnMetadata column)
Optional<ConnectorTableHandle>	applyDelete(ConnectorSession session, ConnectorTableHandle handle)
Optional<ConstraintApplicationResult<ConnectorTableHandle>>	applyFilter(ConnectorSession session, ConnectorTableHandle tableHandle, Constraint constraint)
Optional<ProjectionApplicationResult<ConnectorTableHandle>>	applyProjection(ConnectorSession session, ConnectorTableHandle handle, List<ConnectorExpression> projections, Map<String,ColumnHandle> assignments)
HiveOutputTableHandle	beginCreateTable(ConnectorSession session, ConnectorTableMetadata tableMetadata, Optional<ConnectorNewTableLayout> layout)
ConnectorTableHandle	beginDelete(ConnectorSession session, ConnectorTableHandle tableHandle)
HiveInsertTableHandle	beginInsert(ConnectorSession session, ConnectorTableHandle tableHandle)
void	beginQuery(ConnectorSession session)
ConnectorTableHandle	beginStatisticsCollection(ConnectorSession session, ConnectorTableHandle tableHandle)
void	cleanupQuery(ConnectorSession session)
void	commit()
void	createRole(ConnectorSession session, String role, Optional<PrestoPrincipal> grantor)
void	createSchema(ConnectorSession session, String schemaName, Map<String,Object> properties, PrestoPrincipal owner)
void	createTable(ConnectorSession session, ConnectorTableMetadata tableMetadata, boolean ignoreExisting)
void	createView(ConnectorSession session, SchemaTableName viewName, ConnectorViewDefinition definition, boolean replace)
void	dropColumn(ConnectorSession session, ConnectorTableHandle tableHandle, ColumnHandle column)
void	dropRole(ConnectorSession session, String role)
void	dropSchema(ConnectorSession session, String schemaName)
void	dropTable(ConnectorSession session, ConnectorTableHandle tableHandle)
void	dropView(ConnectorSession session, SchemaTableName viewName)
OptionalLong	executeDelete(ConnectorSession session, ConnectorTableHandle deleteHandle)
Optional<ConnectorOutputMetadata>	finishCreateTable(ConnectorSession session, ConnectorOutputTableHandle tableHandle, Collection<io.airlift.slice.Slice> fragments, Collection<ComputedStatistics> computedStatistics)
Optional<ConnectorOutputMetadata>	finishInsert(ConnectorSession session, ConnectorInsertTableHandle insertHandle, Collection<io.airlift.slice.Slice> fragments, Collection<ComputedStatistics> computedStatistics)
void	finishStatisticsCollection(ConnectorSession session, ConnectorTableHandle tableHandle, Collection<ComputedStatistics> computedStatistics)
Map<String,ColumnHandle>	getColumnHandles(ConnectorSession session, ConnectorTableHandle tableHandle)
ColumnMetadata	getColumnMetadata(ConnectorSession session, ConnectorTableHandle tableHandle, ColumnHandle columnHandle) NOTE: This method does not return column comment
Optional<ConnectorPartitioningHandle>	getCommonPartitioningHandle(ConnectorSession session, ConnectorPartitioningHandle left, ConnectorPartitioningHandle right)
Optional<Object>	getInfo(ConnectorTableHandle table)
Optional<ConnectorNewTableLayout>	getInsertLayout(ConnectorSession session, ConnectorTableHandle tableHandle)
SemiTransactionalHiveMetastore	getMetastore()
Optional<ConnectorNewTableLayout>	getNewTableLayout(ConnectorSession session, ConnectorTableMetadata tableMetadata)
Optional<PrestoPrincipal>	getSchemaOwner(ConnectorSession session, CatalogSchemaName schemaName)
Map<String,Object>	getSchemaProperties(ConnectorSession session, CatalogSchemaName schemaName)
static Optional<SchemaTableName>	getSourceTableNameFromSystemTable(SchemaTableName tableName)
TableStatisticsMetadata	getStatisticsCollectionMetadata(ConnectorSession session, ConnectorTableMetadata tableMetadata)
TableStatisticsMetadata	getStatisticsCollectionMetadataForWrite(ConnectorSession session, ConnectorTableMetadata tableMetadata)
Optional<SystemTable>	getSystemTable(ConnectorSession session, SchemaTableName tableName)
HiveTableHandle	getTableHandle(ConnectorSession session, SchemaTableName tableName)
ConnectorTableHandle	getTableHandleForStatisticsCollection(ConnectorSession session, SchemaTableName tableName, Map<String,Object> analyzeProperties)
ConnectorTableMetadata	getTableMetadata(ConnectorSession session, ConnectorTableHandle tableHandle)
ConnectorTableProperties	getTableProperties(ConnectorSession session, ConnectorTableHandle table)
TableStatistics	getTableStatistics(ConnectorSession session, ConnectorTableHandle tableHandle, Constraint constraint)
ColumnHandle	getUpdateRowIdColumnHandle(ConnectorSession session, ConnectorTableHandle tableHandle)
Optional<ConnectorViewDefinition>	getView(ConnectorSession session, SchemaTableName viewName)
void	grantRoles(ConnectorSession session, Set<String> roles, Set<PrestoPrincipal> grantees, boolean adminOption, Optional<PrestoPrincipal> grantor)
void	grantTablePrivileges(ConnectorSession session, SchemaTableName schemaTableName, Set<Privilege> privileges, PrestoPrincipal grantee, boolean grantOption)
Set<RoleGrant>	listApplicableRoles(ConnectorSession session, PrestoPrincipal principal)
Set<String>	listEnabledRoles(ConnectorSession session)
Set<RoleGrant>	listRoleGrants(ConnectorSession session, PrestoPrincipal principal)
Set<String>	listRoles(ConnectorSession session)
List<String>	listSchemaNames(ConnectorSession session)
Map<SchemaTableName,List<ColumnMetadata>>	listTableColumns(ConnectorSession session, SchemaTablePrefix prefix)
List<GrantInfo>	listTablePrivileges(ConnectorSession session, SchemaTablePrefix schemaTablePrefix)
List<SchemaTableName>	listTables(ConnectorSession session, Optional<String> optionalSchemaName)
List<SchemaTableName>	listViews(ConnectorSession session, Optional<String> optionalSchemaName)
ConnectorTableHandle	makeCompatiblePartitioning(ConnectorSession session, ConnectorTableHandle tableHandle, ConnectorPartitioningHandle partitioningHandle)
void	renameColumn(ConnectorSession session, ConnectorTableHandle tableHandle, ColumnHandle source, String target)
void	renameSchema(ConnectorSession session, String source, String target)
void	renameTable(ConnectorSession session, ConnectorTableHandle tableHandle, SchemaTableName newTableName)
void	renameView(ConnectorSession session, SchemaTableName source, SchemaTableName target)
void	revokeRoles(ConnectorSession session, Set<String> roles, Set<PrestoPrincipal> grantees, boolean adminOption, Optional<PrestoPrincipal> grantor)
void	revokeTablePrivileges(ConnectorSession session, SchemaTableName schemaTableName, Set<Privilege> privileges, PrestoPrincipal grantee, boolean grantOption)
void	rollback()
void	setSchemaAuthorization(ConnectorSession session, String source, PrestoPrincipal principal)
void	setTableComment(ConnectorSession session, ConnectorTableHandle tableHandle, Optional<String> comment)
boolean	usesLegacyTableLayouts()
void	validateScan(ConnectorSession session, ConnectorTableHandle tableHandle)

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.prestosql.spi.connector.ConnectorMetadata

applyLimit, applySample, beginInsert, finishDelete, getInfo, getTableLayout, getTableLayouts, getViews, makeCompatiblePartitioning, metadataDelete, resolveIndex, schemaExists, supportsMetadataDelete, supportsMissingColumnsOnInsert

Field Detail

PRESTO_VERSION_NAME

public static final String PRESTO_VERSION_NAME

See Also:

Constant Field Values

PRESTO_QUERY_ID_NAME

public static final String PRESTO_QUERY_ID_NAME

See Also:

Constant Field Values

BUCKETING_VERSION

public static final String BUCKETING_VERSION

See Also:

Constant Field Values

TABLE_COMMENT

public static final String TABLE_COMMENT

See Also:

Constant Field Values

SKIP_HEADER_COUNT_KEY

public static final String SKIP_HEADER_COUNT_KEY

See Also:

Constant Field Values

SKIP_FOOTER_COUNT_KEY

public static final String SKIP_FOOTER_COUNT_KEY

See Also:

Constant Field Values

AVRO_SCHEMA_URL_KEY

public static final String AVRO_SCHEMA_URL_KEY

See Also:

Constant Field Values

SPARK_TABLE_PROVIDER_KEY

public static final String SPARK_TABLE_PROVIDER_KEY

See Also:

Constant Field Values

DELTA_LAKE_PROVIDER

public static final String DELTA_LAKE_PROVIDER

See Also:

Constant Field Values

Constructor Detail

HiveMetadata

public HiveMetadata(CatalogName catalogName,
                    SemiTransactionalHiveMetastore metastore,
                    HdfsEnvironment hdfsEnvironment,
                    HivePartitionManager partitionManager,
                    org.joda.time.DateTimeZone timeZone,
                    boolean allowCorruptWritesForTesting,
                    boolean writesToNonManagedTablesEnabled,
                    boolean createsOfNonManagedTablesEnabled,
                    boolean translateHiveViews,
                    TypeManager typeManager,
                    LocationService locationService,
                    io.airlift.json.JsonCodec<PartitionUpdate> partitionUpdateCodec,
                    TypeTranslator typeTranslator,
                    String prestoVersion,
                    HiveStatisticsProvider hiveStatisticsProvider,
                    AccessControlMetadata accessControlMetadata)

Method Detail

getMetastore

public SemiTransactionalHiveMetastore getMetastore()

listSchemaNames

public List<String> listSchemaNames(ConnectorSession session)

Specified by:

listSchemaNames in interface ConnectorMetadata

getTableHandle

public HiveTableHandle getTableHandle(ConnectorSession session,
                                      SchemaTableName tableName)

Specified by:

getTableHandle in interface ConnectorMetadata

getTableHandleForStatisticsCollection

public ConnectorTableHandle getTableHandleForStatisticsCollection(ConnectorSession session,
                                                                  SchemaTableName tableName,
                                                                  Map<String,Object> analyzeProperties)

Specified by:

getTableHandleForStatisticsCollection in interface ConnectorMetadata

getSystemTable

public Optional<SystemTable> getSystemTable(ConnectorSession session,
                                            SchemaTableName tableName)

Specified by:

getSystemTable in interface ConnectorMetadata

getTableMetadata

public ConnectorTableMetadata getTableMetadata(ConnectorSession session,
                                               ConnectorTableHandle tableHandle)

Specified by:

getTableMetadata in interface ConnectorMetadata

getInfo

public Optional<Object> getInfo(ConnectorTableHandle table)

Specified by:

getInfo in interface ConnectorMetadata

listTables

public List<SchemaTableName> listTables(ConnectorSession session,
                                        Optional<String> optionalSchemaName)

Specified by:

listTables in interface ConnectorMetadata

getColumnHandles

public Map<String,ColumnHandle> getColumnHandles(ConnectorSession session,
                                                 ConnectorTableHandle tableHandle)

Specified by:

getColumnHandles in interface ConnectorMetadata

listTableColumns

public Map<SchemaTableName,List<ColumnMetadata>> listTableColumns(ConnectorSession session,
                                                                  SchemaTablePrefix prefix)

Specified by:

listTableColumns in interface ConnectorMetadata

getTableStatistics

public TableStatistics getTableStatistics(ConnectorSession session,
                                          ConnectorTableHandle tableHandle,
                                          Constraint constraint)

Specified by:

getTableStatistics in interface ConnectorMetadata

getColumnMetadata

public ColumnMetadata getColumnMetadata(ConnectorSession session,
                                        ConnectorTableHandle tableHandle,
                                        ColumnHandle columnHandle)

NOTE: This method does not return column comment

Specified by:

getColumnMetadata in interface ConnectorMetadata

createSchema

public void createSchema(ConnectorSession session,
                         String schemaName,
                         Map<String,Object> properties,
                         PrestoPrincipal owner)

Specified by:

createSchema in interface ConnectorMetadata

dropSchema

public void dropSchema(ConnectorSession session,
                       String schemaName)

Specified by:

dropSchema in interface ConnectorMetadata

renameSchema

public void renameSchema(ConnectorSession session,
                         String source,
                         String target)

Specified by:

renameSchema in interface ConnectorMetadata

setSchemaAuthorization

public void setSchemaAuthorization(ConnectorSession session,
                                   String source,
                                   PrestoPrincipal principal)

Specified by:

setSchemaAuthorization in interface ConnectorMetadata

createTable

public void createTable(ConnectorSession session,
                        ConnectorTableMetadata tableMetadata,
                        boolean ignoreExisting)

Specified by:

createTable in interface ConnectorMetadata

addColumn

public void addColumn(ConnectorSession session,
                      ConnectorTableHandle tableHandle,
                      ColumnMetadata column)

Specified by:

addColumn in interface ConnectorMetadata

renameColumn

public void renameColumn(ConnectorSession session,
                         ConnectorTableHandle tableHandle,
                         ColumnHandle source,
                         String target)

Specified by:

renameColumn in interface ConnectorMetadata

dropColumn

public void dropColumn(ConnectorSession session,
                       ConnectorTableHandle tableHandle,
                       ColumnHandle column)

Specified by:

dropColumn in interface ConnectorMetadata

renameTable

public void renameTable(ConnectorSession session,
                        ConnectorTableHandle tableHandle,
                        SchemaTableName newTableName)

Specified by:

renameTable in interface ConnectorMetadata

setTableComment

public void setTableComment(ConnectorSession session,
                            ConnectorTableHandle tableHandle,
                            Optional<String> comment)

Specified by:

setTableComment in interface ConnectorMetadata

dropTable

public void dropTable(ConnectorSession session,
                      ConnectorTableHandle tableHandle)

Specified by:

dropTable in interface ConnectorMetadata

beginStatisticsCollection

public ConnectorTableHandle beginStatisticsCollection(ConnectorSession session,
                                                      ConnectorTableHandle tableHandle)

Specified by:

beginStatisticsCollection in interface ConnectorMetadata

finishStatisticsCollection

public void finishStatisticsCollection(ConnectorSession session,
                                       ConnectorTableHandle tableHandle,
                                       Collection<ComputedStatistics> computedStatistics)

Specified by:

finishStatisticsCollection in interface ConnectorMetadata

beginCreateTable

public HiveOutputTableHandle beginCreateTable(ConnectorSession session,
                                              ConnectorTableMetadata tableMetadata,
                                              Optional<ConnectorNewTableLayout> layout)

Specified by:

beginCreateTable in interface ConnectorMetadata

finishCreateTable

public Optional<ConnectorOutputMetadata> finishCreateTable(ConnectorSession session,
                                                           ConnectorOutputTableHandle tableHandle,
                                                           Collection<io.airlift.slice.Slice> fragments,
                                                           Collection<ComputedStatistics> computedStatistics)

Specified by:

finishCreateTable in interface ConnectorMetadata

beginInsert

public HiveInsertTableHandle beginInsert(ConnectorSession session,
                                         ConnectorTableHandle tableHandle)

Specified by:

beginInsert in interface ConnectorMetadata

finishInsert

public Optional<ConnectorOutputMetadata> finishInsert(ConnectorSession session,
                                                      ConnectorInsertTableHandle insertHandle,
                                                      Collection<io.airlift.slice.Slice> fragments,
                                                      Collection<ComputedStatistics> computedStatistics)

Specified by:

finishInsert in interface ConnectorMetadata

createView

public void createView(ConnectorSession session,
                       SchemaTableName viewName,
                       ConnectorViewDefinition definition,
                       boolean replace)

Specified by:

createView in interface ConnectorMetadata

renameView

public void renameView(ConnectorSession session,
                       SchemaTableName source,
                       SchemaTableName target)

Specified by:

renameView in interface ConnectorMetadata

dropView

public void dropView(ConnectorSession session,
                     SchemaTableName viewName)

Specified by:

dropView in interface ConnectorMetadata

listViews

public List<SchemaTableName> listViews(ConnectorSession session,
                                       Optional<String> optionalSchemaName)

Specified by:

listViews in interface ConnectorMetadata

getSchemaProperties

public Map<String,Object> getSchemaProperties(ConnectorSession session,
                                              CatalogSchemaName schemaName)

Specified by:

getSchemaProperties in interface ConnectorMetadata

getSchemaOwner

public Optional<PrestoPrincipal> getSchemaOwner(ConnectorSession session,
                                                CatalogSchemaName schemaName)

Specified by:

getSchemaOwner in interface ConnectorMetadata

getView

public Optional<ConnectorViewDefinition> getView(ConnectorSession session,
                                                 SchemaTableName viewName)

Specified by:

getView in interface ConnectorMetadata

beginDelete

public ConnectorTableHandle beginDelete(ConnectorSession session,
                                        ConnectorTableHandle tableHandle)

Specified by:

beginDelete in interface ConnectorMetadata

getUpdateRowIdColumnHandle

public ColumnHandle getUpdateRowIdColumnHandle(ConnectorSession session,
                                               ConnectorTableHandle tableHandle)

Specified by:

getUpdateRowIdColumnHandle in interface ConnectorMetadata

applyDelete

public Optional<ConnectorTableHandle> applyDelete(ConnectorSession session,
                                                  ConnectorTableHandle handle)

Specified by:

applyDelete in interface ConnectorMetadata

executeDelete

public OptionalLong executeDelete(ConnectorSession session,
                                  ConnectorTableHandle deleteHandle)

Specified by:

executeDelete in interface ConnectorMetadata

usesLegacyTableLayouts

public boolean usesLegacyTableLayouts()

Specified by:

usesLegacyTableLayouts in interface ConnectorMetadata

getTableProperties

public ConnectorTableProperties getTableProperties(ConnectorSession session,
                                                   ConnectorTableHandle table)

Specified by:

getTableProperties in interface ConnectorMetadata

applyFilter

public Optional<ConstraintApplicationResult<ConnectorTableHandle>> applyFilter(ConnectorSession session,
                                                                               ConnectorTableHandle tableHandle,
                                                                               Constraint constraint)

Specified by:

applyFilter in interface ConnectorMetadata

validateScan

public void validateScan(ConnectorSession session,
                         ConnectorTableHandle tableHandle)

Specified by:

validateScan in interface ConnectorMetadata

applyProjection

public Optional<ProjectionApplicationResult<ConnectorTableHandle>> applyProjection(ConnectorSession session,
                                                                                   ConnectorTableHandle handle,
                                                                                   List<ConnectorExpression> projections,
                                                                                   Map<String,ColumnHandle> assignments)

Specified by:

applyProjection in interface ConnectorMetadata

getCommonPartitioningHandle

public Optional<ConnectorPartitioningHandle> getCommonPartitioningHandle(ConnectorSession session,
                                                                         ConnectorPartitioningHandle left,
                                                                         ConnectorPartitioningHandle right)

Specified by:

getCommonPartitioningHandle in interface ConnectorMetadata

makeCompatiblePartitioning

public ConnectorTableHandle makeCompatiblePartitioning(ConnectorSession session,
                                                       ConnectorTableHandle tableHandle,
                                                       ConnectorPartitioningHandle partitioningHandle)

Specified by:

makeCompatiblePartitioning in interface ConnectorMetadata

getInsertLayout

public Optional<ConnectorNewTableLayout> getInsertLayout(ConnectorSession session,
                                                         ConnectorTableHandle tableHandle)

Specified by:

getInsertLayout in interface ConnectorMetadata

getNewTableLayout

public Optional<ConnectorNewTableLayout> getNewTableLayout(ConnectorSession session,
                                                           ConnectorTableMetadata tableMetadata)

Specified by:

getNewTableLayout in interface ConnectorMetadata

getStatisticsCollectionMetadataForWrite

public TableStatisticsMetadata getStatisticsCollectionMetadataForWrite(ConnectorSession session,
                                                                       ConnectorTableMetadata tableMetadata)

Specified by:

getStatisticsCollectionMetadataForWrite in interface ConnectorMetadata

getStatisticsCollectionMetadata

public TableStatisticsMetadata getStatisticsCollectionMetadata(ConnectorSession session,
                                                               ConnectorTableMetadata tableMetadata)

Specified by:

getStatisticsCollectionMetadata in interface ConnectorMetadata

createRole

public void createRole(ConnectorSession session,
                       String role,
                       Optional<PrestoPrincipal> grantor)

Specified by:

createRole in interface ConnectorMetadata

dropRole

public void dropRole(ConnectorSession session,
                     String role)

Specified by:

dropRole in interface ConnectorMetadata

listRoles

public Set<String> listRoles(ConnectorSession session)

Specified by:

listRoles in interface ConnectorMetadata

listRoleGrants

public Set<RoleGrant> listRoleGrants(ConnectorSession session,
                                     PrestoPrincipal principal)

Specified by:

listRoleGrants in interface ConnectorMetadata

grantRoles

public void grantRoles(ConnectorSession session,
                       Set<String> roles,
                       Set<PrestoPrincipal> grantees,
                       boolean adminOption,
                       Optional<PrestoPrincipal> grantor)

Specified by:

grantRoles in interface ConnectorMetadata

revokeRoles

public void revokeRoles(ConnectorSession session,
                        Set<String> roles,
                        Set<PrestoPrincipal> grantees,
                        boolean adminOption,
                        Optional<PrestoPrincipal> grantor)

Specified by:

revokeRoles in interface ConnectorMetadata

listApplicableRoles

public Set<RoleGrant> listApplicableRoles(ConnectorSession session,
                                          PrestoPrincipal principal)

Specified by:

listApplicableRoles in interface ConnectorMetadata

listEnabledRoles

public Set<String> listEnabledRoles(ConnectorSession session)

Specified by:

listEnabledRoles in interface ConnectorMetadata

grantTablePrivileges

public void grantTablePrivileges(ConnectorSession session,
                                 SchemaTableName schemaTableName,
                                 Set<Privilege> privileges,
                                 PrestoPrincipal grantee,
                                 boolean grantOption)

Specified by:

grantTablePrivileges in interface ConnectorMetadata

revokeTablePrivileges

public void revokeTablePrivileges(ConnectorSession session,
                                  SchemaTableName schemaTableName,
                                  Set<Privilege> privileges,
                                  PrestoPrincipal grantee,
                                  boolean grantOption)

Specified by:

revokeTablePrivileges in interface ConnectorMetadata

listTablePrivileges

public List<GrantInfo> listTablePrivileges(ConnectorSession session,
                                           SchemaTablePrefix schemaTablePrefix)

Specified by:

listTablePrivileges in interface ConnectorMetadata

rollback

public void rollback()

Specified by:

rollback in interface TransactionalMetadata

commit

public void commit()

Specified by:

commit in interface TransactionalMetadata

beginQuery

public void beginQuery(ConnectorSession session)

Specified by:

beginQuery in interface ConnectorMetadata

cleanupQuery

public void cleanupQuery(ConnectorSession session)

Specified by:

cleanupQuery in interface ConnectorMetadata

getSourceTableNameFromSystemTable

public static Optional<SchemaTableName> getSourceTableNameFromSystemTable(SchemaTableName tableName)