org.apache.hadoop.hive.ql.parse

Class UpdateDeleteSemanticAnalyzer

java.lang.Object

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

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

org.apache.hadoop.hive.ql.parse.UpdateDeleteSemanticAnalyzer

public class UpdateDeleteSemanticAnalyzer
extends SemanticAnalyzer

A subclass of the SemanticAnalyzer that just handles update and delete statements. It works by rewriting the updates and deletes into insert statements (since they are actually inserts) and then doing some patch up to make them work as updates and deletes instead.

Nested Class Summary

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

SemanticAnalyzer.GenericUDAFInfo

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

BaseSemanticAnalyzer.AnalyzeRewriteContext, BaseSemanticAnalyzer.TableSpec

Field Summary

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

analyzeRewrite, disableJoinMerge, DUMMY_DATABASE, DUMMY_TABLE, noscan, opParseCtx, partialscan, SUBQUERY_TAG_1, SUBQUERY_TAG_2, topOps, unparseTranslator

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

acidFileSinks, columnAccessInfo, conf, console, ctx, db, fetchTask, HIVE_COLUMN_ORDER_ASC, HIVE_COLUMN_ORDER_DESC, idToTableNameMap, inputs, linfo, LOG, outputs, queryProperties, rootTasks, STATIC_LOG, tableAccessInfo, updateColumnAccessInfo

Constructor Summary

Constructors

Constructor and Description
UpdateDeleteSemanticAnalyzer(HiveConf conf)

Method Summary

Methods

Modifier and Type	Method and Description
void	analyzeInternal(ASTNode tree)
protected boolean	deleting()
protected boolean	updating()

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

distinctExprsExists, doPhase1, doPhase1QBExpr, genAllExprNodeDesc, genAllExprNodeDesc, generateErrorMessage, genExprNodeDesc, genExprNodeDesc, genFileSinkPlan, genPlan, genPlan, genSelectDIAST, getAliasId, getColumnInternalName, getGenericUDAFEvaluator, getGenericUDAFInfo, getGroupingSets, getGroupingSetsForCube, getGroupingSetsForRollup, getMetaData, getMetaData, getParseContext, getQB, getResultSchema, getRowResolver, getTable, groupByDescModeToUDAFMode, init, initParseCtx, initPhase1Ctx, isAcidTable, isConstantParameterInAggregationParameters, parseSelect, processNoScanCommand, processPartialScanCommand, putOpInsertMap, reset, setAST, setBit, setQB, validate

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

analyze, analyzeDDLSkewedValues, analyzeSkewedTablDDLColNames, analyzeStoredAdDirs, charSetString, constructListBucketingCtx, createHiveDB, escapeSQLString, getAcidFileSinks, getColumnAccessInfo, getColumnNames, getColumnNamesOrder, getColumns, getColumns, getDatabase, getDatabase, getDb, getDbTableNamePair, getDotName, getFetchTask, getIdToTableNameMap, getInputs, getLineageInfo, getOutputs, getPartition, getPartitions, getQualifiedTableName, getQueryProperties, getRootTasks, getSkewedValueFromASTNode, getSkewedValuesFromASTNode, getTable, getTable, getTable, getTable, getTable, getTableAccessInfo, getTypeStringFromAST, getUnescapedName, getUnescapedName, getUnescapedUnqualifiedTableName, getUpdateColumnAccessInfo, initCtx, isValidPrefixSpec, readProps, setColumnAccessInfo, setFetchTask, setLineageInfo, setTableAccessInfo, setUpdateColumnAccessInfo, skipAuthorization, stripIdentifierQuotes, stripQuotes, toMessage, toReadEntity, toReadEntity, toWriteEntity, toWriteEntity, unescapeIdentifier, unescapeSQLString, validatePartColumnType, validatePartSpec

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateDeleteSemanticAnalyzer

public UpdateDeleteSemanticAnalyzer(HiveConf conf)
                             throws SemanticException

Throws:

SemanticException

Method Detail

analyzeInternal

public void analyzeInternal(ASTNode tree)
                     throws SemanticException

Overrides:

analyzeInternal in class SemanticAnalyzer

Throws:

SemanticException

updating

protected boolean updating()

Overrides:

updating in class SemanticAnalyzer

deleting

protected boolean deleting()

Overrides:

deleting in class SemanticAnalyzer