org.apache.hadoop.hive.ql.parse

Class ColumnStatsSemanticAnalyzer

java.lang.Object

org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer

org.apache.hadoop.hive.ql.parse.SemanticAnalyzer

org.apache.hadoop.hive.ql.parse.ColumnStatsSemanticAnalyzer

public class ColumnStatsSemanticAnalyzer
extends SemanticAnalyzer

ColumnStatsSemanticAnalyzer. Handles semantic analysis and rewrite for gathering column statistics both at the level of a partition and a table. Note that table statistics are implemented in SemanticAnalyzer.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer

BaseSemanticAnalyzer.tableSpec

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.parse.SemanticAnalyzer

noscan, partialscan

Fields inherited from class org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer

columnAccessInfo, conf, console, db, fetchTask, HIVE_COLUMN_ORDER_ASC, HIVE_COLUMN_ORDER_DESC, idToTableNameMap, inputs, linfo, ORCFILE_INPUT, ORCFILE_OUTPUT, ORCFILE_SERDE, outputs, queryProperties, RCFILE_INPUT, RCFILE_OUTPUT, rootTasks, SEQUENCEFILE_INPUT, SEQUENCEFILE_OUTPUT, tableAccessInfo, TEXTFILE_INPUT, TEXTFILE_OUTPUT

Constructor Summary

Constructors

Constructor and Description
ColumnStatsSemanticAnalyzer(HiveConf conf)
ColumnStatsSemanticAnalyzer(HiveConf conf, ASTNode tree)

Method Summary

Modifier and Type	Method and Description
void	analyze(ASTNode ast, Context origCtx)

Methods inherited from class org.apache.hadoop.hive.ql.parse.SemanticAnalyzer

analyzeInternal, doPhase1, doPhase1QBExpr, genAllExprNodeDesc, genAllExprNodeDesc, generateErrorMessage, genExprNodeDesc, genExprNodeDesc, genPlan, getColumnInternalName, getMetaData, getMetaData, getParseContext, getQB, getResultSchema, getRowResolver, init, initParseCtx, initPhase1Ctx, parseSelect, processNoScanCommand, processPartialScanCommand, putOpInsertMap, reset, setQB, validate

Methods inherited from class org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer

analyzeDDLSkewedValues, analyzeSkewedTablDDLColNames, analyzeStoredAdDirs, charSetString, constructListBucketingCtx, extractPartitionSpecs, getColumnAccessInfo, getColumnNames, getColumnNamesOrder, getColumns, getColumns, getDb, getFetchTask, getIdToTableNameMap, getInputs, getLineageInfo, getOutputs, getQueryProperties, getRootTasks, getSkewedValueFromASTNode, getSkewedValuesFromASTNode, getTableAccessInfo, getTypeStringFromAST, getUnescapedName, getUnescapedName, getUnescapedUnqualifiedTableName, handleGenericFileFormat, initCtx, isValidPrefixSpec, readProps, setColumnAccessInfo, setFetchTask, setLineageInfo, setTableAccessInfo, stripIdentifierQuotes, stripQuotes, unescapeIdentifier, unescapeSQLString, validatePartSpec

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnStatsSemanticAnalyzer

public ColumnStatsSemanticAnalyzer(HiveConf conf)
                            throws SemanticException

Throws:

SemanticException

ColumnStatsSemanticAnalyzer

public ColumnStatsSemanticAnalyzer(HiveConf conf,
                                   ASTNode tree)
                            throws SemanticException

Throws:

SemanticException

Method Detail

analyze

public void analyze(ASTNode ast,
                    Context origCtx)
             throws SemanticException

Overrides:

analyze in class BaseSemanticAnalyzer

Throws:

SemanticException