Interface SystemTable

public interface SystemTable

Exactly one of cursor(io.trino.spi.connector.ConnectorTransactionHandle, io.trino.spi.connector.ConnectorSession, io.trino.spi.predicate.TupleDomain<java.lang.Integer>) or pageSource(io.trino.spi.connector.ConnectorTransactionHandle, io.trino.spi.connector.ConnectorSession, io.trino.spi.predicate.TupleDomain<java.lang.Integer>) must be implemented.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static enum	SystemTable.Distribution

Method Summary

Modifier and Type	Method	Description
default RecordCursor	cursor(ConnectorTransactionHandle transactionHandle, ConnectorSession session, TupleDomain<Integer> constraint)	Create a cursor for the data in this table.
default RecordCursor	cursor(ConnectorTransactionHandle transactionHandle, ConnectorSession session, TupleDomain<Integer> constraint, Set<Integer> requiredColumns, ConnectorSplit split)
SystemTable.Distribution	getDistribution()
ConnectorTableMetadata	getTableMetadata()
default ConnectorPageSource	pageSource(ConnectorTransactionHandle transactionHandle, ConnectorSession session, TupleDomain<Integer> constraint)	Create a page source for the data in this table.
default Optional<ConnectorSplitSource>	splitSource(ConnectorSession connectorSession, TupleDomain<ColumnHandle> constraint)

Method Details

getDistribution

SystemTable.Distribution getDistribution()

getTableMetadata

ConnectorTableMetadata getTableMetadata()

cursor

default RecordCursor cursor(ConnectorTransactionHandle transactionHandle,
 ConnectorSession session,
 TupleDomain<Integer> constraint)

Create a cursor for the data in this table.

Parameters:

session - the session to use for creating the data

constraint - the constraints for the table columns (indexed from 0)

cursor

default RecordCursor cursor(ConnectorTransactionHandle transactionHandle,
 ConnectorSession session,
 TupleDomain<Integer> constraint,
 Set<Integer> requiredColumns,
 ConnectorSplit split)

pageSource

default ConnectorPageSource pageSource(ConnectorTransactionHandle transactionHandle,
 ConnectorSession session,
 TupleDomain<Integer> constraint)

Create a page source for the data in this table.

Parameters:

session - the session to use for creating the data

constraint - the constraints for the table columns (indexed from 0)

splitSource

default Optional<ConnectorSplitSource> splitSource(ConnectorSession connectorSession,
 TupleDomain<ColumnHandle> constraint)