Package io.squashql.query.database

Class SparkQueryEngine

java.lang.Object

io.squashql.query.database.AQueryEngine<SparkDatastore>

io.squashql.query.database.SparkQueryEngine

All Implemented Interfaces:

QueryEngine<SparkDatastore>

public class SparkQueryEngine
extends AQueryEngine<SparkDatastore>

Field Summary

Fields

Modifier and Type	Field	Description
static final List<String>	SUPPORTED_AGGREGATION_FUNCTIONS	https://spark.apache.org/docs/latest/sql-ref-functions-builtin.html

Fields inherited from class io.squashql.query.database.AQueryEngine

datastore

Fields inherited from interface io.squashql.query.database.QueryEngine

GRAND_TOTAL, TOTAL

Constructor Summary

Constructors

Constructor	Description
SparkQueryEngine(SparkDatastore datastore)

Method Summary

Modifier and Type	Method	Description
Table	executeRawSql(String sql)
QueryRewriter	queryRewriter(DatabaseQuery query)
protected Table	retrieveAggregates(DatabaseQuery query, String sql)
List<String>	supportedAggregationFunctions()

Methods inherited from class io.squashql.query.database.AQueryEngine

createSqlStatement, datastore, execute, transformToColumnFormat, transformToRowFormat

Methods inherited from class java.lang.Object

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

Field Details

SUPPORTED_AGGREGATION_FUNCTIONS

public static final List<String> SUPPORTED_AGGREGATION_FUNCTIONS

https://spark.apache.org/docs/latest/sql-ref-functions-builtin.html

Constructor Details

SparkQueryEngine

public SparkQueryEngine(SparkDatastore datastore)

Method Details

retrieveAggregates

protected Table retrieveAggregates(DatabaseQuery query,
 String sql)

Specified by:

retrieveAggregates in class AQueryEngine<SparkDatastore>

executeRawSql

public Table executeRawSql(String sql)

supportedAggregationFunctions

public List<String> supportedAggregationFunctions()

queryRewriter

public QueryRewriter queryRewriter(DatabaseQuery query)