org.apache.hadoop.hive.ql.parse
Class ExplainSemanticAnalyzer

java.lang.Object
  org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer
      org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer

public class ExplainSemanticAnalyzer
extends BaseSemanticAnalyzer

ExplainSemanticAnalyzer.

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.BaseSemanticAnalyzer

columnAccessInfo, COLUMNAR_SERDE, conf, console, ctx, db, fetchTask, HIVE_COLUMN_ORDER_ASC, HIVE_COLUMN_ORDER_DESC, idToTableNameMap, inputs, linfo, LOG, outputs, queryProperties, RCFILE_INPUT, RCFILE_OUTPUT, rootTasks, SEQUENCEFILE_INPUT, SEQUENCEFILE_OUTPUT, tableAccessInfo, TEXTFILE_INPUT, TEXTFILE_OUTPUT

Constructor Summary

ExplainSemanticAnalyzer(HiveConf conf)

Method Summary

void	analyzeInternal(ASTNode ast)
List<FieldSchema>	getResultSchema()

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

analyze, 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, init, initCtx, isValidPrefixSpec, readProps, reset, setColumnAccessInfo, setFetchTask, setLineageInfo, setTableAccessInfo, stripQuotes, unescapeIdentifier, unescapeSQLString, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

ExplainSemanticAnalyzer

public ExplainSemanticAnalyzer(HiveConf conf)
                        throws SemanticException

Throws:

SemanticException

Method Detail

analyzeInternal

public void analyzeInternal(ASTNode ast)
                     throws SemanticException

Specified by:

analyzeInternal in class BaseSemanticAnalyzer

Throws:

SemanticException

getResultSchema

public List<FieldSchema> getResultSchema()

Overrides:

getResultSchema in class BaseSemanticAnalyzer

Returns:

the schema for the fields which will be produced when the statement is executed, or null if not known