Package io.trino.plugin.deltalake.transactionlog

Class DeltaLakeParquetStatisticsUtils

java.lang.Object

io.trino.plugin.deltalake.transactionlog.DeltaLakeParquetStatisticsUtils

public class DeltaLakeParquetStatisticsUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static boolean	hasInvalidStatistics(Collection<org.apache.parquet.hadoop.metadata.ColumnChunkMetaData> metadataList)
static Map<String,Object>	jsonEncodeMax(Map<String,Optional<org.apache.parquet.column.statistics.Statistics<?>>> stats, Map<String,Type> typeForColumn)
static Map<String,Object>	jsonEncodeMin(Map<String,Optional<org.apache.parquet.column.statistics.Statistics<?>>> stats, Map<String,Type> typeForColumn)
static Object	jsonValueToTrinoValue(Type type, Object jsonValue)
static Map<String,Object>	toJsonValues(Map<String,Type> columnTypeMapping, Map<String,Object> values)
static Map<String,Object>	toNullCounts(Map<String,Type> columnTypeMapping, Map<String,Object> values)

Methods inherited from class java.lang.Object

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

Method Details

hasInvalidStatistics

public static boolean hasInvalidStatistics(Collection<org.apache.parquet.hadoop.metadata.ColumnChunkMetaData> metadataList)

jsonValueToTrinoValue

@Nullable
public static Object jsonValueToTrinoValue(Type type,
 @Nullable
 Object jsonValue)

toJsonValues

public static Map<String,Object> toJsonValues(Map<String,Type> columnTypeMapping,
 Map<String,Object> values)

jsonEncodeMin

public static Map<String,Object> jsonEncodeMin(Map<String,Optional<org.apache.parquet.column.statistics.Statistics<?>>> stats,
 Map<String,Type> typeForColumn)

jsonEncodeMax

public static Map<String,Object> jsonEncodeMax(Map<String,Optional<org.apache.parquet.column.statistics.Statistics<?>>> stats,
 Map<String,Type> typeForColumn)

toNullCounts

public static Map<String,Object> toNullCounts(Map<String,Type> columnTypeMapping,
 Map<String,Object> values)