Package io.trino.plugin.hive.metastore

Class MetastoreUtil

java.lang.Object

io.trino.plugin.hive.metastore.MetastoreUtil

public final class MetastoreUtil
extends Object

Method Summary

Modifier and Type	Method	Description
static Map<String,String>	adjustRowCount(Map<String,String> parameters, String description, long rowCountAdjustment)
static PrincipalPrivileges	buildInitialPrivilegeSet(String tableOwner)
static boolean	canConvertSqlTypeToStringForParts(Type type, boolean assumeCanonicalPartitionKeys)
static TupleDomain<String>	computePartitionKeyFilter(List<HiveColumnHandle> partitionKeys, TupleDomain<HiveColumnHandle> effectivePredicate)	This method creates a TupleDomain for each partitionKey specified
static Properties	getHiveSchema(Partition partition, Table table)
static Properties	getHiveSchema(Table table)
static String	getPartitionLocation(Table table, Optional<Partition> partition)
static ProtectMode	getProtectMode(Partition partition)
static ProtectMode	getProtectMode(Table table)
static boolean	isAvroTableWithSchemaSet(Table table)
static String	makePartitionName(Table table, Partition partition)
static String	makePartitionName(List<Column> partitionColumns, List<String> values)
static Optional<List<String>>	partitionKeyFilterToStringList(List<String> columnNames, TupleDomain<String> partitionKeysFilter, boolean assumeCanonicalPartitionKeys)
static String	sqlScalarToString(Type type, Object value, String nullString)
static String	sqlScalarToStringForParts(Type type, Object value, boolean assumeCanonicalPartitionKeys, String partitionWildcardString)
static String	toPartitionName(List<String> names, List<String> values)
static void	verifyCanDropColumn(HiveMetastore metastore, String databaseName, String tableName, String columnName)
static void	verifyOnline(SchemaTableName tableName, Optional<String> partitionName, ProtectMode protectMode, Map<String,String> parameters)

Methods inherited from class java.lang.Object

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

Method Details

getHiveSchema

public static Properties getHiveSchema(Table table)

getHiveSchema

public static Properties getHiveSchema(Partition partition,
 Table table)

getProtectMode

public static ProtectMode getProtectMode(Partition partition)

getProtectMode

public static ProtectMode getProtectMode(Table table)

isAvroTableWithSchemaSet

public static boolean isAvroTableWithSchemaSet(Table table)

makePartitionName

public static String makePartitionName(Table table,
 Partition partition)

makePartitionName

public static String makePartitionName(List<Column> partitionColumns,
 List<String> values)

toPartitionName

public static String toPartitionName(List<String> names,
 List<String> values)

getPartitionLocation

public static String getPartitionLocation(Table table,
 Optional<Partition> partition)

verifyOnline

public static void verifyOnline(SchemaTableName tableName,
 Optional<String> partitionName,
 ProtectMode protectMode,
 Map<String,String> parameters)

verifyCanDropColumn

public static void verifyCanDropColumn(HiveMetastore metastore,
 String databaseName,
 String tableName,
 String columnName)

buildInitialPrivilegeSet

public static PrincipalPrivileges buildInitialPrivilegeSet(String tableOwner)

partitionKeyFilterToStringList

public static Optional<List<String>> partitionKeyFilterToStringList(List<String> columnNames,
 TupleDomain<String> partitionKeysFilter,
 boolean assumeCanonicalPartitionKeys)

Parameters:

assumeCanonicalPartitionKeys - allow conversion of non-char types (eg BIGINT, timestamp) to canonical string formats. If false, non-char types will be replaced with the wildcard

Returns:

the domain for each partition key to either the wildcard or an equals check, or empty if TupleDomain.isNone()

canConvertSqlTypeToStringForParts

public static boolean canConvertSqlTypeToStringForParts(Type type,
 boolean assumeCanonicalPartitionKeys)

sqlScalarToStringForParts

public static String sqlScalarToStringForParts(Type type,
 Object value,
 boolean assumeCanonicalPartitionKeys,
 String partitionWildcardString)

Returns:

canonical string representation of a given value according to its type. If there isn't a valid conversion, returns ""

sqlScalarToString

public static String sqlScalarToString(Type type,
 Object value,
 String nullString)

Returns:

canonical string representation of a given value according to its type.

Throws:

TrinoException - if the type is not supported

computePartitionKeyFilter

public static TupleDomain<String> computePartitionKeyFilter(List<HiveColumnHandle> partitionKeys,
 TupleDomain<HiveColumnHandle> effectivePredicate)

This method creates a TupleDomain for each partitionKey specified

Returns:

filtered version of relevant Domains in effectivePredicate.

adjustRowCount

public static Map<String,String> adjustRowCount(Map<String,String> parameters,
 String description,
 long rowCountAdjustment)