org.apache.calcite.sql.fun

Class SqlSpatialTypeFunctions.GridTable

java.lang.Object

org.apache.calcite.sql.fun.SqlSpatialTypeFunctions.GridTable

All Implemented Interfaces:

ScannableTable, Table

Enclosing class:

SqlSpatialTypeFunctions

public static class SqlSpatialTypeFunctions.GridTable
extends Object
implements ScannableTable

Returns the points or rectangles in a grid that covers a given geometry.

Method Summary

Modifier and Type	Method and Description
Schema.TableType	getJdbcTableType() Type of table.
RelDataType	getRowType(RelDataTypeFactory typeFactory) Returns this table's row type.
Statistic	getStatistic() Returns a provider of statistics about this table.
boolean	isRolledUp(String column) Determines whether the given column has been rolled up.
boolean	rolledUpColumnValidInsideAgg(String column, SqlCall call, @Nullable SqlNode parent, @Nullable CalciteConnectionConfig config) Determines whether the given rolled up column can be used inside the given aggregate function.
org.apache.calcite.linq4j.Enumerable<Object[]>	scan(DataContext root) Returns an enumerator over the rows in this Table.

Methods inherited from class java.lang.Object

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

Method Detail

getRowType

public RelDataType getRowType(RelDataTypeFactory typeFactory)

Description copied from interface: Table

Returns this table's row type.

This is a struct type whose fields describe the names and types of the columns in this table.

The implementer must use the type factory provided. This ensures that the type is converted into a canonical form; other equal types in the same query will use the same object.

Specified by:

getRowType in interface Table

Parameters:

typeFactory - Type factory with which to create the type

Returns:

Row type

scan

public org.apache.calcite.linq4j.Enumerable<Object[]> scan(DataContext root)

Description copied from interface: ScannableTable

Returns an enumerator over the rows in this Table. Each row is represented as an array of its column values.

Specified by:

scan in interface ScannableTable

getStatistic

public Statistic getStatistic()

Description copied from interface: Table

Returns a provider of statistics about this table.

Specified by:

getStatistic in interface Table

getJdbcTableType

public Schema.TableType getJdbcTableType()

Description copied from interface: Table

Type of table.

Specified by:

getJdbcTableType in interface Table

isRolledUp

public boolean isRolledUp(String column)

Description copied from interface: Table

Determines whether the given column has been rolled up.

Specified by:

isRolledUp in interface Table

rolledUpColumnValidInsideAgg

public boolean rolledUpColumnValidInsideAgg(String column,
                                            SqlCall call,
                                            @Nullable SqlNode parent,
                                            @Nullable CalciteConnectionConfig config)

Description copied from interface: Table

Determines whether the given rolled up column can be used inside the given aggregate function. You can assume that isRolledUp(column) is true.

Specified by:

rolledUpColumnValidInsideAgg in interface Table

Parameters:

column - The column name for which isRolledUp is true

call - The aggregate call

parent - Parent node of call in the SqlNode tree

config - Config settings. May be null

Returns:

true iff the given aggregate call is valid