org.apache.hadoop.hive.ql.exec

Class DDLPlanUtils

java.lang.Object

org.apache.hadoop.hive.ql.exec.DDLPlanUtils

public class DDLPlanUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
DDLPlanUtils()

Method Summary

Modifier and Type	Method and Description
String	addAllColStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData columnStatisticsData)
void	addBinaryStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd, List<String> ls)
void	addBooleanStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd, List<String> ls)
void	addDateStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd, List<String> ls)
void	addDecimalStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd, List<String> ls)
void	addDoubleStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd, List<String> ls)
List<String>	addExplainPlans(String sql)
void	addLongStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd, List<String> ls)
void	addStringStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd, List<String> ls)
static void	appendSerdeParams(StringBuilder builder, Map<String,String> serdeParams)
String	checkBitVectors(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd)
boolean	checkIfDefaultPartition(String pt)
static String	formatType(TypeInfo typeInfo) Struct fields are identifiers, need to be put between ``.
String	getAlterTableAddPartition(Partition pt) Creates the alter table command to add a partition to the given table.
void	getAlterTableStmtCheckConstraint(CheckConstraint ck, List<String> constraints)
String	getAlterTableStmtCol(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData columnStatisticsData, String colName, String tblName, String dbName) Parses the basic ColumnStatObject and returns the alter tables stmt for each individual column in a table.
void	getAlterTableStmtDefaultConstraint(DefaultConstraint dc, Table tb, List<String> constraints)
void	getAlterTableStmtForeignKeyConstraint(ForeignKeyInfo fr, List<String> constraints, Set<String> allTableNames)
void	getAlterTableStmtNotNullConstraint(NotNullConstraint nc, Table tb, List<String> constraints)
String	getAlterTableStmtPartitionColStat(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData columnStatisticsData, String colName, String tblName, String ptName, String dbName) Parses the basic ColumnStatObject and returns the alter tables stmt for each individual column in a partition.
String	getAlterTableStmtPartitionStatsBasic(Partition pt) Parses the basic table statistics for the given table.
List<String>	getAlterTableStmtPartitionStatsColsAll(List<org.apache.hadoop.hive.metastore.api.ColumnStatisticsObj> columnStatisticsObjList, String tblName, String ptName, String dbName) Parses the ColumnStatistics for all the columns in a given partition and adds the alter table update statistics command for each column.
String	getAlterTableStmtPrimaryKeyConstraint(PrimaryKeyInfo pr)
String	getAlterTableStmtTableStatsBasic(Table tbl) Parses the basic table statistics for the given table.
List<String>	getAlterTableStmtTableStatsColsAll(Table tbl) Parses the ColumnStatistics for all the columns in a given table and adds the alter table update statistics command for each column.
void	getAlterTableStmtUniqueConstraint(UniqueConstraint uq, List<String> constraints)
List<String>	getCreateDatabaseStmt(Set<String> dbNames) Returns the create database query for a give database name.
String	getCreateTableCommand(Table table, boolean isRelative)
String	getCreateViewCommand(Table table, boolean isRelative)
String	getCreateViewStmt(Table table) Returns the create view statement for the given view.
List<String>	getDDLPlanForPartitionWithStats(Table table, Map<String,List<Partition>> tableToPartitionList)
String	getPartitionActualName(Partition pt)
List<String>	getTableColumnNames(Table tbl)
Map<String,String>	getTableColumnsToType(Table tbl)
String	paramToValues(Map<String,String> parameters)
List<String>	populateConstraints(Table tb, Set<String> allTableNames) Add all the constraints for the given table.
byte[]	setByteArrayToLongSize(byte[] arr)

Methods inherited from class java.lang.Object

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

Constructor Detail

DDLPlanUtils

public DDLPlanUtils()

Method Detail

getCreateDatabaseStmt

public List<String> getCreateDatabaseStmt(Set<String> dbNames)

Returns the create database query for a give database name.

Parameters:

dbNames -

Returns:

getTableColumnsToType

public Map<String,String> getTableColumnsToType(Table tbl)

getTableColumnNames

public List<String> getTableColumnNames(Table tbl)

getPartitionActualName

public String getPartitionActualName(Partition pt)

checkIfDefaultPartition

public boolean checkIfDefaultPartition(String pt)

getAlterTableAddPartition

public String getAlterTableAddPartition(Partition pt)
                                 throws org.apache.hadoop.hive.metastore.api.MetaException

Creates the alter table command to add a partition to the given table.

Parameters:

pt -

Returns:

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

addLongStats

public void addLongStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd,
                         List<String> ls)

addBooleanStats

public void addBooleanStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd,
                            List<String> ls)

addStringStats

public void addStringStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd,
                           List<String> ls)

addDateStats

public void addDateStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd,
                         List<String> ls)

addBinaryStats

public void addBinaryStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd,
                           List<String> ls)

setByteArrayToLongSize

public byte[] setByteArrayToLongSize(byte[] arr)

addDecimalStats

public void addDecimalStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd,
                            List<String> ls)

addDoubleStats

public void addDoubleStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd,
                           List<String> ls)

checkBitVectors

public String checkBitVectors(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData cd)

addAllColStats

public String addAllColStats(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData columnStatisticsData)

getAlterTableStmtCol

public String getAlterTableStmtCol(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData columnStatisticsData,
                                   String colName,
                                   String tblName,
                                   String dbName)

Parses the basic ColumnStatObject and returns the alter tables stmt for each individual column in a table.

Parameters:

columnStatisticsData -

colName -

tblName -

dbName -

Returns:

getAlterTableStmtTableStatsColsAll

public List<String> getAlterTableStmtTableStatsColsAll(Table tbl)
                                                throws HiveException

Parses the ColumnStatistics for all the columns in a given table and adds the alter table update statistics command for each column.

Parameters:

tbl -

Throws:

HiveException

getAlterTableStmtPartitionColStat

public String getAlterTableStmtPartitionColStat(org.apache.hadoop.hive.metastore.api.ColumnStatisticsData columnStatisticsData,
                                                String colName,
                                                String tblName,
                                                String ptName,
                                                String dbName)

Parses the basic ColumnStatObject and returns the alter tables stmt for each individual column in a partition.

Parameters:

columnStatisticsData -

colName -

tblName -

ptName -

dbName -

Returns:

getAlterTableStmtPartitionStatsColsAll

public List<String> getAlterTableStmtPartitionStatsColsAll(List<org.apache.hadoop.hive.metastore.api.ColumnStatisticsObj> columnStatisticsObjList,
                                                           String tblName,
                                                           String ptName,
                                                           String dbName)

Parses the ColumnStatistics for all the columns in a given partition and adds the alter table update statistics command for each column.

Parameters:

columnStatisticsObjList -

tblName -

ptName -

dbName -

paramToValues

public String paramToValues(Map<String,String> parameters)

getAlterTableStmtPartitionStatsBasic

public String getAlterTableStmtPartitionStatsBasic(Partition pt)

Parses the basic table statistics for the given table.

Parameters:

pt -

Returns:

Returns the alter table .... update statistics for partititon.

getDDLPlanForPartitionWithStats

public List<String> getDDLPlanForPartitionWithStats(Table table,
                                                    Map<String,List<Partition>> tableToPartitionList)
                                             throws org.apache.hadoop.hive.metastore.api.MetaException,
                                                    HiveException

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

HiveException

getAlterTableStmtTableStatsBasic

public String getAlterTableStmtTableStatsBasic(Table tbl)

Parses the basic table statistics for the given table.

Parameters:

tbl -

Returns:

Returns the alter table .... update statistics for table

getAlterTableStmtPrimaryKeyConstraint

public String getAlterTableStmtPrimaryKeyConstraint(PrimaryKeyInfo pr)

getAlterTableStmtForeignKeyConstraint

public void getAlterTableStmtForeignKeyConstraint(ForeignKeyInfo fr,
                                                  List<String> constraints,
                                                  Set<String> allTableNames)

getAlterTableStmtUniqueConstraint

public void getAlterTableStmtUniqueConstraint(UniqueConstraint uq,
                                              List<String> constraints)

getAlterTableStmtDefaultConstraint

public void getAlterTableStmtDefaultConstraint(DefaultConstraint dc,
                                               Table tb,
                                               List<String> constraints)

getAlterTableStmtCheckConstraint

public void getAlterTableStmtCheckConstraint(CheckConstraint ck,
                                             List<String> constraints)

getAlterTableStmtNotNullConstraint

public void getAlterTableStmtNotNullConstraint(NotNullConstraint nc,
                                               Table tb,
                                               List<String> constraints)

populateConstraints

public List<String> populateConstraints(Table tb,
                                        Set<String> allTableNames)

Add all the constraints for the given table. Will populate the constraints list.

Parameters:

tb -

addExplainPlans

public List<String> addExplainPlans(String sql)

getCreateViewStmt

public String getCreateViewStmt(Table table)

Returns the create view statement for the given view.

Parameters:

table -

Returns:

create view statement.

getCreateViewCommand

public String getCreateViewCommand(Table table,
                                   boolean isRelative)

getCreateTableCommand

public String getCreateTableCommand(Table table,
                                    boolean isRelative)

formatType

public static String formatType(TypeInfo typeInfo)

Struct fields are identifiers, need to be put between ``.

appendSerdeParams

public static void appendSerdeParams(StringBuilder builder,
                                     Map<String,String> serdeParams)