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

DUMMY_DATABASE, DUMMY_TABLE

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

HIVE_COLUMN_ORDER_ASC, HIVE_COLUMN_ORDER_DESC

Constructor Summary

ColumnStatsSemanticAnalyzer(HiveConf conf)

ColumnStatsSemanticAnalyzer(HiveConf conf, ASTNode tree)

Method Summary

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, getTable, init, initParseCtx, initPhase1Ctx, parseSelect, putOpInsertMap, setQB, validate

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

charSetString, getColumnAccessInfo, getColumnNames, getColumns, getDb, getFetchTask, getIdToTableNameMap, getInputs, getLineageInfo, getOutputs, getQueryProperties, getRootTasks, getTableAccessInfo, getUnescapedName, getUnescapedName, getUnescapedUnqualifiedTableName, initCtx, isValidPrefixSpec, readProps, setColumnAccessInfo, setFetchTask, setLineageInfo, setTableAccessInfo, stripIdentifierQuotes, stripQuotes, unescapeIdentifier, unescapeSQLString, validatePartSpec

Methods inherited from class java.lang.Object

equals, 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