Class ViewReaderUtil

java.lang.Object

io.trino.plugin.hive.ViewReaderUtil

public final class ViewReaderUtil
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ViewReaderUtil.HiveViewReader	Class to decode Hive view definitions
static class	ViewReaderUtil.PrestoViewReader	Supports decoding of Presto views
static interface	ViewReaderUtil.ViewReader

Field Summary

Fields

Modifier and Type	Field	Description
static final String	PRESTO_VIEW_FLAG

Method Summary

Modifier and Type	Method	Description
static ViewReaderUtil.ViewReader	createViewReader(SemiTransactionalHiveMetastore metastore, ConnectorSession session, Table table, TypeManager typeManager, BiFunction<ConnectorSession,SchemaTableName,Optional<CatalogSchemaTableName>> tableRedirectionResolver, MetadataProvider metadataProvider, boolean runHiveViewRunAsInvoker, HiveTimestampPrecision hiveViewsTimestampPrecision)
static String	encodeViewData(ConnectorViewDefinition definition)
static boolean	isHiveView(Table table)
static boolean	isSomeKindOfAView(Table table)	Returns true if table represents a Hive view, Trino/Presto view, materialized view or anything else that gets registered using table type "VIRTUAL_VIEW".
static boolean	isTrinoMaterializedView(Table table)
static boolean	isTrinoMaterializedView(String tableType, Map<String,String> tableParameters)
static boolean	isTrinoView(Table table)	Returns true when the table represents a "Trino view" (AKA "presto view").
static boolean	isTrinoView(String tableType, Map<String,String> tableParameters)	Returns true when the table represents a "Trino view" (AKA "presto view").

Methods inherited from class java.lang.Object

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

Field Details

PRESTO_VIEW_FLAG

public static final String PRESTO_VIEW_FLAG

See Also:

• Constant Field Values

Method Details

createViewReader

public static ViewReaderUtil.ViewReader createViewReader(SemiTransactionalHiveMetastore metastore,
 ConnectorSession session,
 Table table,
 TypeManager typeManager,
 BiFunction<ConnectorSession,SchemaTableName,Optional<CatalogSchemaTableName>> tableRedirectionResolver,
 MetadataProvider metadataProvider,
 boolean runHiveViewRunAsInvoker,
 HiveTimestampPrecision hiveViewsTimestampPrecision)

isSomeKindOfAView

public static boolean isSomeKindOfAView(Table table)

Returns true if table represents a Hive view, Trino/Presto view, materialized view or anything else that gets registered using table type "VIRTUAL_VIEW". Note: this method returns false for a table that represents Hive's own materialized view ("MATERIALIZED_VIEW" table type). Hive own's materialized views are currently treated as ordinary tables by Trino.

isHiveView

public static boolean isHiveView(Table table)

isTrinoView

public static boolean isTrinoView(Table table)

Returns true when the table represents a "Trino view" (AKA "presto view"). Returns false for Hive views or Trino materialized views.

isTrinoView

public static boolean isTrinoView(String tableType,
 Map<String,String> tableParameters)

Returns true when the table represents a "Trino view" (AKA "presto view"). Returns false for Hive views or Trino materialized views.

isTrinoMaterializedView

public static boolean isTrinoMaterializedView(Table table)

isTrinoMaterializedView

public static boolean isTrinoMaterializedView(String tableType,
 Map<String,String> tableParameters)

encodeViewData

public static String encodeViewData(ConnectorViewDefinition definition)