org.apache.shardingsphere.sqlfederation.optimizer.util

Class SQLFederationPlannerUtil

java.lang.Object

org.apache.shardingsphere.sqlfederation.optimizer.util.SQLFederationPlannerUtil

public final class SQLFederationPlannerUtil
extends Object

SQL federation planner util.

Constructor Summary

Constructors

Constructor and Description
SQLFederationPlannerUtil()

Method Summary

Modifier and Type	Method and Description
static org.apache.calcite.prepare.CalciteCatalogReader	createCatalogReader(String schemaName, org.apache.calcite.schema.Schema schema, org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory, org.apache.calcite.config.CalciteConnectionConfig connectionConfig) Create catalog reader.
static org.apache.calcite.plan.RelOptPlanner	createHepPlanner() Create new instance of hep planner.
static org.apache.calcite.plan.RelOptCluster	createRelOptCluster(org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory) Create rel opt cluster.
static org.apache.calcite.sql2rel.SqlToRelConverter	createSqlToRelConverter(org.apache.calcite.prepare.CalciteCatalogReader catalogReader, org.apache.calcite.sql.validate.SqlValidator validator, org.apache.calcite.plan.RelOptCluster cluster, SQLParserRule sqlParserRule, DatabaseType databaseType, boolean needsViewExpand) Create sql to rel converter.
static org.apache.calcite.sql.validate.SqlValidator	createSqlValidator(org.apache.calcite.prepare.CalciteCatalogReader catalogReader, org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory, DatabaseType databaseType, org.apache.calcite.config.CalciteConnectionConfig connectionConfig) Create sql validator.
static org.apache.calcite.plan.RelOptPlanner	createVolcanoPlanner() Create new instance of volcano planner.
static String	pgGetUserById(Long oid) Mock pg_get_userbyid function.
static boolean	pgTableIsVisible(Long oid) Mock pg_table_is_visible function.

Methods inherited from class java.lang.Object

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

Constructor Detail

SQLFederationPlannerUtil

public SQLFederationPlannerUtil()

Method Detail

createVolcanoPlanner

public static org.apache.calcite.plan.RelOptPlanner createVolcanoPlanner()

Create new instance of volcano planner.

Returns:

volcano planner instance

createHepPlanner

public static org.apache.calcite.plan.RelOptPlanner createHepPlanner()

Create new instance of hep planner.

Returns:

hep planner instance

createCatalogReader

public static org.apache.calcite.prepare.CalciteCatalogReader createCatalogReader(String schemaName,
                                                                                  org.apache.calcite.schema.Schema schema,
                                                                                  org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory,
                                                                                  org.apache.calcite.config.CalciteConnectionConfig connectionConfig)

Create catalog reader.

Parameters:

schemaName - schema name

schema - schema

relDataTypeFactory - rel data type factory

connectionConfig - connection config

Returns:

calcite catalog reader

pgTableIsVisible

public static boolean pgTableIsVisible(Long oid)

Mock pg_table_is_visible function.

Parameters:

oid - oid

Returns:

true

pgGetUserById

public static String pgGetUserById(Long oid)

Mock pg_get_userbyid function.

Parameters:

oid - oid

Returns:

user name

createSqlValidator

public static org.apache.calcite.sql.validate.SqlValidator createSqlValidator(org.apache.calcite.prepare.CalciteCatalogReader catalogReader,
                                                                              org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory,
                                                                              DatabaseType databaseType,
                                                                              org.apache.calcite.config.CalciteConnectionConfig connectionConfig)

Create sql validator.

Parameters:

catalogReader - catalog reader

relDataTypeFactory - rel data type factory

databaseType - database type

connectionConfig - connection config

Returns:

sql validator

createSqlToRelConverter

public static org.apache.calcite.sql2rel.SqlToRelConverter createSqlToRelConverter(org.apache.calcite.prepare.CalciteCatalogReader catalogReader,
                                                                                   org.apache.calcite.sql.validate.SqlValidator validator,
                                                                                   org.apache.calcite.plan.RelOptCluster cluster,
                                                                                   SQLParserRule sqlParserRule,
                                                                                   DatabaseType databaseType,
                                                                                   boolean needsViewExpand)

Create sql to rel converter.

Parameters:

catalogReader - catalog reader

validator - validator

cluster - cluster

sqlParserRule - sql parser rule

databaseType - database type

needsViewExpand - whether sql needs view expand or not

Returns:

sql to rel converter

createRelOptCluster

public static org.apache.calcite.plan.RelOptCluster createRelOptCluster(org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory)

Create rel opt cluster.

Parameters:

relDataTypeFactory - rel data type factory

Returns:

rel opt cluster