Class DatasetHeader
- java.lang.Object
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- org.apache.iotdb.db.mpp.common.header.DatasetHeader
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public class DatasetHeader extends java.lang.ObjectThe header of query result dataset.
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Field Summary
Fields Modifier and Type Field Description static DatasetHeaderEMPTY_HEADER
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Constructor Summary
Constructors Constructor Description DatasetHeader(java.util.List<ColumnHeader> columnHeaders, boolean isIgnoreTimestamp)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.util.List<ColumnHeader>getColumnHeaders()java.util.Map<java.lang.String,java.lang.Integer>getColumnNameIndexMap()java.util.List<java.lang.String>getColumnNameWithoutAlias()intgetOutputValueColumnCount()java.util.List<java.lang.Byte>getRespAliasColumns()java.util.List<java.lang.String>getRespColumns()java.util.List<java.lang.String>getRespDataTypeList()java.util.List<org.apache.iotdb.tsfile.file.metadata.enums.TSDataType>getRespDataTypes()booleanisIgnoreTimestamp()voidsetColumnToTsBlockIndexMap(java.util.List<java.lang.String> outputColumnNames)
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Field Detail
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EMPTY_HEADER
public static DatasetHeader EMPTY_HEADER
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Constructor Detail
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DatasetHeader
public DatasetHeader(java.util.List<ColumnHeader> columnHeaders, boolean isIgnoreTimestamp)
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Method Detail
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getColumnHeaders
public java.util.List<ColumnHeader> getColumnHeaders()
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isIgnoreTimestamp
public boolean isIgnoreTimestamp()
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setColumnToTsBlockIndexMap
public void setColumnToTsBlockIndexMap(java.util.List<java.lang.String> outputColumnNames)
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getRespColumns
public java.util.List<java.lang.String> getRespColumns()
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getColumnNameWithoutAlias
public java.util.List<java.lang.String> getColumnNameWithoutAlias()
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getRespDataTypeList
public java.util.List<java.lang.String> getRespDataTypeList()
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getRespDataTypes
public java.util.List<org.apache.iotdb.tsfile.file.metadata.enums.TSDataType> getRespDataTypes()
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getRespAliasColumns
public java.util.List<java.lang.Byte> getRespAliasColumns()
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getColumnNameIndexMap
public java.util.Map<java.lang.String,java.lang.Integer> getColumnNameIndexMap()
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getOutputValueColumnCount
public int getOutputValueColumnCount()
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