idx
int64
0
165k
question
stringlengths
73
4.15k
target
stringlengths
5
918
len_question
int64
21
890
len_target
int64
3
255
155,200
private KafkaInternalConsumerRunner createConsumerRunner ( Properties properties ) throws Exception { ClassLoader previous = Thread . currentThread ( ) . getContextClassLoader ( ) ; Thread . currentThread ( ) . setContextClassLoader ( getClass ( ) . getClassLoader ( ) ) ; try { Consumer < ByteBuffer , ByteBuffer > cons...
Create a Kafka consumer and runner .
114
7
155,201
void createSchema ( HsqlName name , Grantee owner ) { SqlInvariants . checkSchemaNameNotSystem ( name . name ) ; Schema schema = new Schema ( name , owner ) ; schemaMap . add ( name . name , schema ) ; }
Creates a schema belonging to the given grantee .
59
11
155,202
public HsqlName getSchemaHsqlName ( String name ) { if ( name == null ) { return defaultSchemaHsqlName ; } if ( SqlInvariants . INFORMATION_SCHEMA . equals ( name ) ) { return SqlInvariants . INFORMATION_SCHEMA_HSQLNAME ; } Schema schema = ( ( Schema ) schemaMap . get ( name ) ) ; if ( schema == null ) { throw Error . ...
If schemaName is null return the default schema name else return the HsqlName object for the schema . If schemaName does not exist throw .
118
29
155,203
boolean isSchemaAuthorisation ( Grantee grantee ) { Iterator schemas = allSchemaNameIterator ( ) ; while ( schemas . hasNext ( ) ) { String schemaName = ( String ) schemas . next ( ) ; if ( grantee . equals ( toSchemaOwner ( schemaName ) ) ) { return true ; } } return false ; }
is a grantee the authorization of any schema
79
9
155,204
void dropSchemas ( Grantee grantee , boolean cascade ) { HsqlArrayList list = getSchemas ( grantee ) ; Iterator it = list . iterator ( ) ; while ( it . hasNext ( ) ) { Schema schema = ( Schema ) it . next ( ) ; dropSchema ( schema . name . name , cascade ) ; } }
drop all schemas with the given authorisation
77
9
155,205
public HsqlArrayList getAllTables ( ) { Iterator schemas = allSchemaNameIterator ( ) ; HsqlArrayList alltables = new HsqlArrayList ( ) ; while ( schemas . hasNext ( ) ) { String name = ( String ) schemas . next ( ) ; HashMappedList current = getTables ( name ) ; alltables . addAll ( current . values ( ) ) ; } return al...
Returns an HsqlArrayList containing references to all non - system tables and views . This includes all tables and views registered with this Database .
99
28
155,206
public Table getTable ( Session session , String name , String schema ) { Table t = null ; if ( schema == null ) { t = findSessionTable ( session , name , schema ) ; } if ( t == null ) { schema = session . getSchemaName ( schema ) ; t = findUserTable ( session , name , schema ) ; } if ( t == null ) { if ( SqlInvariants...
Returns the specified user - defined table or view visible within the context of the specified Session or any system table of the given name . It excludes any temp tables created in other Sessions . Throws if the table does not exist in the context .
154
48
155,207
public Table getUserTable ( Session session , String name , String schema ) { Table t = findUserTable ( session , name , schema ) ; if ( t == null ) { throw Error . error ( ErrorCode . X_42501 , name ) ; } return t ; }
Returns the specified user - defined table or view visible within the context of the specified Session . It excludes system tables and any temp tables created in different Sessions . Throws if the table does not exist in the context .
58
43
155,208
public Table findUserTable ( Session session , String name , String schemaName ) { Schema schema = ( Schema ) schemaMap . get ( schemaName ) ; if ( schema == null ) { return null ; } if ( session != null ) { Table table = session . getLocalTable ( name ) ; if ( table != null ) { return table ; } } int i = schema . tabl...
Returns the specified user - defined table or view visible within the context of the specified schema . It excludes system tables . Returns null if the table does not exist in the context .
117
35
155,209
public Table findSessionTable ( Session session , String name , String schemaName ) { return session . findSessionTable ( name ) ; }
Returns the specified session context table . Returns null if the table does not exist in the context .
28
19
155,210
void dropTableOrView ( Session session , Table table , boolean cascade ) { // ft - concurrent session . commit ( false ) ; if ( table . isView ( ) ) { removeSchemaObject ( table . getName ( ) , cascade ) ; } else { dropTable ( session , table , cascade ) ; } }
Drops the specified user - defined view or table from this Database object .
67
15
155,211
int getTableIndex ( Table table ) { Schema schema = ( Schema ) schemaMap . get ( table . getSchemaName ( ) . name ) ; if ( schema == null ) { return - 1 ; } HsqlName name = table . getName ( ) ; return schema . tableList . getIndex ( name . name ) ; }
Returns index of a table or view in the HashMappedList that contains the table objects for this Database .
73
22
155,212
void recompileDependentObjects ( Table table ) { OrderedHashSet set = getReferencingObjects ( table . getName ( ) ) ; Session session = database . sessionManager . getSysSession ( ) ; for ( int i = 0 ; i < set . size ( ) ; i ++ ) { HsqlName name = ( HsqlName ) set . get ( i ) ; switch ( name . type ) { case SchemaObjec...
After addition or removal of columns and indexes all views that reference the table should be recompiled .
197
19
155,213
Table findUserTableForIndex ( Session session , String name , String schemaName ) { Schema schema = ( Schema ) schemaMap . get ( schemaName ) ; HsqlName indexName = schema . indexLookup . getName ( name ) ; if ( indexName == null ) { return null ; } return findUserTable ( session , indexName . parent . name , schemaNam...
Returns the table that has an index with the given name and schema .
84
14
155,214
public HsqlName getSchemaHsqlNameNoThrow ( String name , HsqlName defaultName ) { if ( name == null ) { return defaultSchemaHsqlName ; } if ( SqlInvariants . INFORMATION_SCHEMA . equals ( name ) ) { return SqlInvariants . INFORMATION_SCHEMA_HSQLNAME ; } Schema schema = ( ( Schema ) schemaMap . get ( name ) ) ; if ( sch...
If schemaName is null return the default schema name else return the HsqlName object for the schema . If schemaName does not exist return the defaultName provided . Not throwing the usual exception saves some throw - then - catch nonsense in the usual session setup .
113
52
155,215
public InitiateResponseMessage dedupe ( long inUniqueId , TransactionInfoBaseMessage in ) { if ( in instanceof Iv2InitiateTaskMessage ) { final Iv2InitiateTaskMessage init = ( Iv2InitiateTaskMessage ) in ; final StoredProcedureInvocation invocation = init . getStoredProcedureInvocation ( ) ; final String procName = inv...
Dedupe initiate task messages . Check if the initiate task message is seen before .
252
17
155,216
public void updateLastSeenUniqueId ( long inUniqueId , TransactionInfoBaseMessage in ) { if ( in instanceof Iv2InitiateTaskMessage && inUniqueId > m_lastSeenUniqueId ) { m_lastSeenUniqueId = inUniqueId ; } }
Update the last seen uniqueId for this partition if it s an initiate task message .
61
17
155,217
public VoltMessage poll ( ) { if ( m_mustDrain || m_replayEntries . isEmpty ( ) ) { return null ; } if ( m_replayEntries . firstEntry ( ) . getValue ( ) . isEmpty ( ) ) { m_replayEntries . pollFirstEntry ( ) ; } // All the drain conditions depend on being blocked, which // we will only really know for sure when we try ...
Return the next correctly sequenced message or null if none exists .
190
13
155,218
public boolean offer ( long inUniqueId , TransactionInfoBaseMessage in ) { ReplayEntry found = m_replayEntries . get ( inUniqueId ) ; if ( in instanceof Iv2EndOfLogMessage ) { m_mpiEOLReached = true ; return true ; } if ( in instanceof MultiPartitionParticipantMessage ) { //-------------------------------------------- ...
Offer a new message . Return false if the offered message can be run immediately .
622
17
155,219
private void verifyDataCapacity ( int size ) { if ( size + 4 > m_dataNetwork . capacity ( ) ) { m_dataNetworkOrigin . discard ( ) ; m_dataNetworkOrigin = org . voltcore . utils . DBBPool . allocateDirect ( size + 4 ) ; m_dataNetwork = m_dataNetworkOrigin . b ( ) ; m_dataNetwork . position ( 4 ) ; m_data = m_dataNetwork...
private int m_counter ;
103
6
155,220
public void initialize ( final int clusterIndex , final long siteId , final int partitionId , final int sitesPerHost , final int hostId , final String hostname , final int drClusterId , final int defaultDrBufferSize , final long tempTableMemory , final HashinatorConfig hashinatorConfig , final boolean createDrReplicate...
the abstract api assumes construction initializes but here initialization is just another command .
432
15
155,221
@ Override protected void coreLoadCatalog ( final long timestamp , final byte [ ] catalogBytes ) throws EEException { int result = ExecutionEngine . ERRORCODE_ERROR ; verifyDataCapacity ( catalogBytes . length + 100 ) ; m_data . clear ( ) ; m_data . putInt ( Commands . LoadCatalog . m_id ) ; m_data . putLong ( timestam...
write the catalog as a UTF - 8 byte string via connection
182
12
155,222
@ Override public void coreUpdateCatalog ( final long timestamp , final boolean isStreamUpdate , final String catalogDiffs ) throws EEException { int result = ExecutionEngine . ERRORCODE_ERROR ; try { final byte catalogBytes [ ] = catalogDiffs . getBytes ( "UTF-8" ) ; verifyDataCapacity ( catalogBytes . length + 100 ) ...
write the diffs as a UTF - 8 byte string via connection
272
13
155,223
private void sendDependencyTable ( final int dependencyId ) throws IOException { final byte [ ] dependencyBytes = nextDependencyAsBytes ( dependencyId ) ; if ( dependencyBytes == null ) { m_connection . m_socket . getOutputStream ( ) . write ( Connection . kErrorCode_DependencyNotFound ) ; return ; } // 1 for response ...
Retrieve a dependency table and send it via the connection . If no table is available send a response code indicating such . The message is prepended with two lengths . One length is for the network layer and is the size of the whole message not including the length prefix .
239
54
155,224
boolean enableScoreboard ( ) { assert ( s_barrier != null ) ; try { s_barrier . await ( 3L , TimeUnit . MINUTES ) ; } catch ( InterruptedException | BrokenBarrierException | TimeoutException e ) { hostLog . error ( "Cannot re-enable the scoreboard." ) ; s_barrier . reset ( ) ; return false ; } m_scoreboardEnabled = tru...
After all sites has been fully initialized and ready for snapshot we should enable the scoreboard .
124
17
155,225
synchronized void offer ( TransactionTask task ) { Iv2Trace . logTransactionTaskQueueOffer ( task ) ; TransactionState txnState = task . getTransactionState ( ) ; if ( ! m_backlog . isEmpty ( ) ) { /* * This branch happens during regular execution when a multi-part is in progress. * The first task for the multi-part is...
If necessary stick this task in the backlog . Many network threads may be racing to reach here synchronize to serialize queue order
647
25
155,226
synchronized int flush ( long txnId ) { if ( tmLog . isDebugEnabled ( ) ) { tmLog . debug ( "Flush backlog with txnId:" + TxnEgo . txnIdToString ( txnId ) + ", backlog head txnId is:" + ( m_backlog . isEmpty ( ) ? "empty" : TxnEgo . txnIdToString ( m_backlog . getFirst ( ) . getTxnId ( ) ) ) ) ; } int offered = 0 ; // ...
Try to offer as many runnable Tasks to the SiteTaskerQueue as possible .
657
19
155,227
public synchronized List < TransactionTask > getBacklogTasks ( ) { List < TransactionTask > pendingTasks = new ArrayList <> ( ) ; Iterator < TransactionTask > iter = m_backlog . iterator ( ) ; // skip the first fragments which is streaming snapshot TransactionTask mpTask = iter . next ( ) ; assert ( ! mpTask . getTrans...
Called from streaming snapshot execution
175
6
155,228
public synchronized void removeMPReadTransactions ( ) { TransactionTask task = m_backlog . peekFirst ( ) ; while ( task != null && task . getTransactionState ( ) . isReadOnly ( ) ) { task . getTransactionState ( ) . setDone ( ) ; flush ( task . getTxnId ( ) ) ; task = m_backlog . peekFirst ( ) ; } }
flush mp readonly transactions out of backlog
86
8
155,229
public List < List < GeographyPointValue > > getRings ( ) { /* * Gets the loops that make up the polygon, with the outer loop first. * Note that we need to convert from XYZPoint to GeographyPointValue. * * Include the loop back to the first vertex. Also, since WKT wants * holes oriented Clockwise and S2 wants everythin...
Return the list of rings of a polygon . The list has the same values as the list of rings used to construct the polygon or the sequence of WKT rings used to construct the polygon .
389
41
155,230
public String toWKT ( ) { StringBuffer sb = new StringBuffer ( ) ; sb . append ( "POLYGON (" ) ; boolean isFirstLoop = true ; for ( List < XYZPoint > loop : m_loops ) { if ( ! isFirstLoop ) { sb . append ( ", " ) ; } sb . append ( "(" ) ; int startIdx = ( isFirstLoop ? 1 : loop . size ( ) - 1 ) ; int endIdx = ( isFirst...
Return a representation of this object as well - known text .
318
12
155,231
public int getLengthInBytes ( ) { long length = polygonOverheadInBytes ( ) ; for ( List < XYZPoint > loop : m_loops ) { length += loopLengthInBytes ( loop . size ( ) ) ; } return ( int ) length ; }
Return the number of bytes in the serialization for this polygon . Returned value does not include the 4 - byte length prefix that precedes variable - length types .
59
34
155,232
private static < T > void diagnoseLoop ( List < T > loop , String excpMsgPrf ) throws IllegalArgumentException { if ( loop == null ) { throw new IllegalArgumentException ( excpMsgPrf + "a polygon must contain at least one ring " + "(with each ring at least 4 points, including repeated closing vertex)" ) ; } // 4 vertic...
A helper function to validate the loop structure If loop is invalid it generates IllegalArgumentException exception
253
19
155,233
@ Deprecated public GeographyValue add ( GeographyPointValue offset ) { List < List < GeographyPointValue >> newLoops = new ArrayList <> ( ) ; for ( List < XYZPoint > oneLoop : m_loops ) { List < GeographyPointValue > loop = new ArrayList <> ( ) ; for ( XYZPoint p : oneLoop ) { loop . add ( p . toGeographyPointValue ( ...
Create a new GeographyValue which is offset from this one by the given point . The latitude and longitude values stay in range because we are using the normalizing operations in GeographyPointValue .
153
40
155,234
public void sync ( ) { if ( isClosed ) { return ; } synchronized ( fileStreamOut ) { if ( needsSync ) { if ( busyWriting ) { forceSync = true ; return ; } try { fileStreamOut . flush ( ) ; outDescriptor . sync ( ) ; syncCount ++ ; } catch ( IOException e ) { Error . printSystemOut ( "flush() or sync() error: " + e . to...
Called internally or externally in write delay intervals .
112
10
155,235
protected void openFile ( ) { try { FileAccess fa = isDump ? FileUtil . getDefaultInstance ( ) : database . getFileAccess ( ) ; OutputStream fos = fa . openOutputStreamElement ( outFile ) ; outDescriptor = fa . getFileSync ( fos ) ; fileStreamOut = new BufferedOutputStream ( fos , 2 << 12 ) ; } catch ( IOException e ) ...
File is opened in append mode although in current usage the file never pre - exists
135
16
155,236
private Runnable createRunnableLoggingTask ( final Level level , final Object message , final Throwable t ) { // While logging, the logger thread temporarily disguises itself as its caller. final String callerThreadName = Thread . currentThread ( ) . getName ( ) ; final Runnable runnableLoggingTask = new Runnable ( ) {...
Generate a runnable task that logs one message in an exception - safe way .
192
18
155,237
private Runnable createRunnableL7dLoggingTask ( final Level level , final String key , final Object [ ] params , final Throwable t ) { // While logging, the logger thread temporarily disguises itself as its caller. final String callerThreadName = Thread . currentThread ( ) . getName ( ) ; final Runnable runnableLogging...
Generate a runnable task that logs one localized message in an exception - safe way .
206
19
155,238
public static void configure ( String xmlConfig , File voltroot ) { try { Class < ? > loggerClz = Class . forName ( "org.voltcore.logging.VoltLog4jLogger" ) ; assert ( loggerClz != null ) ; Method configureMethod = loggerClz . getMethod ( "configure" , String . class , File . class ) ; configureMethod . invoke ( null ,...
Static method to change the Log4j config globally . This fails if you re not using Log4j for now .
105
24
155,239
public T get ( String name ) { if ( m_items == null ) { return null ; } return m_items . get ( name . toUpperCase ( ) ) ; }
Get an item from the map by name
39
8
155,240
@ Override public Iterator < T > iterator ( ) { if ( m_items == null ) { m_items = new TreeMap < String , T > ( ) ; } return m_items . values ( ) . iterator ( ) ; }
Get an iterator for the items in the map
52
9
155,241
private static void validateMigrateStmt ( String sql , VoltXMLElement xmlSQL , Database db ) { final Map < String , String > attributes = xmlSQL . attributes ; assert attributes . size ( ) == 1 ; final Table targetTable = db . getTables ( ) . get ( attributes . get ( "table" ) ) ; assert targetTable != null ; final Cat...
Check that MIGRATE FROM tbl WHERE ... statement is valid .
343
15
155,242
public String parameterize ( ) { Set < Integer > paramIds = new HashSet <> ( ) ; ParameterizationInfo . findUserParametersRecursively ( m_xmlSQL , paramIds ) ; m_adhocUserParamsCount = paramIds . size ( ) ; m_paramzInfo = null ; if ( paramIds . size ( ) == 0 ) { m_paramzInfo = ParameterizationInfo . parameterize ( m_xm...
Auto - parameterize all of the literals in the parsed SQL statement .
225
15
155,243
public CompiledPlan plan ( ) throws PlanningErrorException { // reset any error message m_recentErrorMsg = null ; // what's going to happen next: // If a parameterized statement exists, try to make a plan with it // On success return the plan. // On failure, try the plan again without parameterization if ( m_paramzInfo...
Get the best plan for the SQL statement given assuming the given costModel .
394
15
155,244
private void harmonizeCommonTableSchemas ( CompiledPlan plan ) { List < AbstractPlanNode > seqScanNodes = plan . rootPlanGraph . findAllNodesOfClass ( SeqScanPlanNode . class ) ; for ( AbstractPlanNode planNode : seqScanNodes ) { SeqScanPlanNode seqScanNode = ( SeqScanPlanNode ) planNode ; StmtCommonTableScan scan = se...
Make sure that schemas in base and recursive plans in common table scans have identical schemas . This is important because otherwise we will get data corruption in the EE . We look for SeqScanPlanNodes then look for a common table scan and ask the scan node to harmonize its schemas .
119
61
155,245
public void resetCapacity ( int newCapacity , int newPolicy ) throws IllegalArgumentException { if ( newCapacity != 0 && hashIndex . elementCount > newCapacity ) { int surplus = hashIndex . elementCount - newCapacity ; surplus += ( surplus >> 5 ) ; if ( surplus > hashIndex . elementCount ) { surplus = hashIndex . eleme...
In rare circumstances resetCapacity may not succeed in which case capacity remains unchanged but purge policy is set to newPolicy
158
23
155,246
protected void initParams ( Database database , String baseFileName ) { fileName = baseFileName + ".data.tmp" ; this . database = database ; fa = FileUtil . getDefaultInstance ( ) ; int cacheSizeScale = 10 ; cacheFileScale = 8 ; Error . printSystemOut ( "cache_size_scale: " + cacheSizeScale ) ; maxCacheSize = 2048 ; in...
Initial external parameters are set here . The size if fixed .
130
12
155,247
public synchronized void close ( boolean write ) { try { if ( dataFile != null ) { dataFile . close ( ) ; dataFile = null ; fa . removeElement ( fileName ) ; } } catch ( Throwable e ) { database . logger . appLog . logContext ( e , null ) ; throw Error . error ( ErrorCode . FILE_IO_ERROR , ErrorCode . M_DataFileCache_c...
Parameter write is always false . The backing file is simply closed and deleted .
103
15
155,248
private AbstractPlanNode recursivelyApply ( AbstractPlanNode plan , int childIdx ) { // If this is an insert plan node, then try to // inline it. There will only ever by one insert // node, so if we can't inline it we just return the // given plan. if ( plan instanceof InsertPlanNode ) { InsertPlanNode insertNode = ( I...
This helper function is called when we recurse down the childIdx - th child of a parent node .
508
22
155,249
static void updateTableNames ( List < ParsedColInfo > src , String tblName ) { src . forEach ( ci -> ci . updateTableName ( tblName , tblName ) . toTVE ( ci . m_index , ci . m_index ) ) ; }
table names .
66
3
155,250
ParsedSelectStmt rewriteAsMV ( Table view ) { m_groupByColumns . clear ( ) ; m_distinctGroupByColumns = null ; m_groupByExpressions . clear ( ) ; m_distinctProjectSchema = null ; m_distinct = m_hasAggregateExpression = m_hasComplexGroupby = m_hasComplexAgg = false ; // Resets paramsBy* filters, assuming that it's equiv...
Updates miscellaneous fields as part of rewriting as materialized view .
303
14
155,251
public StmtTargetTableScan generateStmtTableScan ( Table view ) { StmtTargetTableScan st = new StmtTargetTableScan ( view ) ; m_displayColumns . forEach ( ci -> st . resolveTVE ( ( TupleValueExpression ) ( ci . m_expression ) ) ) ; defineTableScanByAlias ( view . getTypeName ( ) , st ) ; return st ; }
Generate table scan and add the scan to m_tableAliasMap
90
14
155,252
public void switchOptimalSuiteForAvgPushdown ( ) { m_displayColumns = m_avgPushdownDisplayColumns ; m_aggResultColumns = m_avgPushdownAggResultColumns ; m_groupByColumns = m_avgPushdownGroupByColumns ; m_distinctGroupByColumns = m_avgPushdownDistinctGroupByColumns ; m_orderColumns = m_avgPushdownOrderColumns ; m_projec...
Switch the optimal set for pushing down AVG
161
8
155,253
private void prepareMVBasedQueryFix ( ) { // ENG-5386: Edge cases query returning correct answers with // aggregation push down does not need reAggregation work. if ( m_hasComplexGroupby ) { m_mvFixInfo . setEdgeCaseQueryNoFixNeeded ( false ) ; } // Handle joined query case case. // MV partitioned table without partiti...
Prepare for the mv based distributed query fix only if it might be required .
303
17
155,254
private void placeTVEsinColumns ( ) { // Build the association between the table column with its index Map < AbstractExpression , Integer > aggTableIndexMap = new HashMap <> ( ) ; Map < Integer , ParsedColInfo > indexToColumnMap = new HashMap <> ( ) ; int index = 0 ; for ( ParsedColInfo col : m_aggResultColumns ) { agg...
Generate new output Schema and Place TVEs for display columns if needed . Place TVEs for order by columns always .
486
25
155,255
private void insertAggExpressionsToAggResultColumns ( List < AbstractExpression > aggColumns , ParsedColInfo cookedCol ) { for ( AbstractExpression expr : aggColumns ) { assert ( expr instanceof AggregateExpression ) ; if ( expr . hasSubquerySubexpression ( ) ) { throw new PlanningErrorException ( "SQL Aggregate functi...
ParseDisplayColumns and ParseOrderColumns will call this function to add Aggregation expressions to aggResultColumns
399
25
155,256
private static void insertToColumnList ( List < ParsedColInfo > columnList , List < ParsedColInfo > newCols ) { for ( ParsedColInfo col : newCols ) { if ( ! columnList . contains ( col ) ) { columnList . add ( col ) ; } } }
Concat elements to the XXXColumns list
66
9
155,257
private void findAllTVEs ( AbstractExpression expr , List < TupleValueExpression > tveList ) { if ( ! isNewtoColumnList ( m_aggResultColumns , expr ) ) { return ; } if ( expr instanceof TupleValueExpression ) { tveList . add ( ( TupleValueExpression ) expr . clone ( ) ) ; return ; } if ( expr . getLeft ( ) != null ) { ...
Find all TVEs except inside of AggregationExpression
191
11
155,258
private void verifyWindowFunctionExpressions ( ) { // Check for windowed expressions. if ( m_windowFunctionExpressions . size ( ) > 0 ) { if ( m_windowFunctionExpressions . size ( ) > 1 ) { throw new PlanningErrorException ( "Only one windowed function call may appear in a selection list." ) ; } if ( m_hasAggregateExpr...
Verify the validity of the windowed expressions .
785
10
155,259
private boolean canPushdownLimit ( ) { boolean limitCanPushdown = ( m_limitOffset . hasLimit ( ) && ! m_distinct ) ; if ( limitCanPushdown ) { for ( ParsedColInfo col : m_displayColumns ) { AbstractExpression rootExpr = col . m_expression ; if ( rootExpr instanceof AggregateExpression ) { if ( ( ( AggregateExpression )...
Check if the LimitPlanNode can be pushed down . The LimitPlanNode may have a LIMIT clause only OFFSET clause only or both . Offset only cannot be pushed down .
123
38
155,260
@ Override public boolean isOrderDeterministic ( ) { if ( ! hasTopLevelScans ( ) ) { // This currently applies to parent queries that do all their // scanning in subqueries and so take on the order determinism of // their subqueries. This might have to be rethought to allow // ordering in parent queries to effect deter...
Returns true if this select statement can be proved to always produce its result rows in the same order every time that it is executed .
403
26
155,261
public boolean orderByColumnsDetermineAllDisplayColumnsForUnion ( List < ParsedColInfo > orderColumns ) { Set < AbstractExpression > orderExprs = new HashSet <> ( ) ; for ( ParsedColInfo col : orderColumns ) { orderExprs . add ( col . m_expression ) ; } for ( ParsedColInfo col : m_displayColumns ) { if ( ! orderExprs ....
This is a very simple version of the above method for when an ORDER BY clause appears on a UNION . Does the ORDER BY clause reference every item on the display list? If so then the order is deterministic .
117
44
155,262
public boolean isPartitionColumnInWindowedAggregatePartitionByList ( ) { if ( getWindowFunctionExpressions ( ) . size ( ) == 0 ) { return false ; } // We can't really have more than one Windowed Aggregate Expression. // If we ever do, this should fail gracelessly. assert ( getWindowFunctionExpressions ( ) . size ( ) ==...
Return true iff all the windowed partition expressions have a table partition column in their partition by list and if there is one such windowed partition expression . If there are no windowed expressions we return false . Note that there can only be one windowed expression currently so this is more general than it ne...
372
64
155,263
@ Deprecated public static GeographyValue CreateRegularConvex ( GeographyPointValue center , GeographyPointValue firstVertex , int numVertices , double sizeOfHole ) { assert ( 0 <= sizeOfHole && sizeOfHole < 1.0 ) ; double phi = 360.0 / numVertices ; GeographyPointValue holeFirstVertex = null ; if ( sizeOfHole > 0 ) { ...
Create a regular convex polygon with an optional hole .
402
12
155,264
@ Deprecated public static GeographyValue reverseLoops ( GeographyValue goodPolygon ) { List < List < GeographyPointValue >> newLoops = new ArrayList <> ( ) ; List < List < GeographyPointValue > > oldLoops = goodPolygon . getRings ( ) ; for ( List < GeographyPointValue > loop : oldLoops ) { // Copy loop, but reverse th...
Reverse all the loops in a polygon . Don t change the order of the loops just reverse each loop .
203
24
155,265
public void grant ( String granteeName , String roleName , Grantee grantor ) { Grantee grantee = get ( granteeName ) ; if ( grantee == null ) { throw Error . error ( ErrorCode . X_28501 , granteeName ) ; } if ( isImmutable ( granteeName ) ) { throw Error . error ( ErrorCode . X_28502 , granteeName ) ; } Grantee role = ...
Grant a role to this Grantee .
308
8
155,266
public void revoke ( String granteeName , String roleName , Grantee grantor ) { if ( ! grantor . isAdmin ( ) ) { throw Error . error ( ErrorCode . X_42507 ) ; } Grantee grantee = get ( granteeName ) ; if ( grantee == null ) { throw Error . error ( ErrorCode . X_28000 , granteeName ) ; } Grantee role = ( Grantee ) roleM...
Revoke a role from a Grantee
140
8
155,267
void removeEmptyRole ( Grantee role ) { for ( int i = 0 ; i < map . size ( ) ; i ++ ) { Grantee grantee = ( Grantee ) map . get ( i ) ; grantee . roles . remove ( role ) ; } }
Removes a role without any privileges from all grantees
57
11
155,268
public void removeDbObject ( HsqlName name ) { for ( int i = 0 ; i < map . size ( ) ; i ++ ) { Grantee g = ( Grantee ) map . get ( i ) ; g . revokeDbObject ( name ) ; } }
Removes all rights mappings for the database object identified by the dbobject argument from all Grantee objects in the set .
57
25
155,269
void updateAllRights ( Grantee role ) { for ( int i = 0 ; i < map . size ( ) ; i ++ ) { Grantee grantee = ( Grantee ) map . get ( i ) ; if ( grantee . isRole ) { grantee . updateNestedRoles ( role ) ; } } for ( int i = 0 ; i < map . size ( ) ; i ++ ) { Grantee grantee = ( Grantee ) map . get ( i ) ; if ( ! grantee . is...
First updates all ROLE Grantee objects . Then updates all USER Grantee Objects .
127
18
155,270
public Grantee getRole ( String name ) { Grantee g = ( Grantee ) roleMap . get ( name ) ; if ( g == null ) { throw Error . error ( ErrorCode . X_0P000 , name ) ; } return g ; }
Returns Grantee for the named Role
55
7
155,271
private void connect ( Session session , boolean withReadOnlyData ) { // Open new cache: if ( ( dataSource . length ( ) == 0 ) || isConnected ) { // nothing to do return ; } PersistentStore store = database . persistentStoreCollection . getStore ( this ) ; this . store = store ; DataFileCache cache = null ; try { cache...
connects to the data source
450
6
155,272
public void disconnect ( ) { this . store = null ; PersistentStore store = database . persistentStoreCollection . getStore ( this ) ; store . release ( ) ; isConnected = false ; }
disconnects from the data source
42
7
155,273
private void openCache ( Session session , String dataSourceNew , boolean isReversedNew , boolean isReadOnlyNew ) { String dataSourceOld = dataSource ; boolean isReversedOld = isReversed ; boolean isReadOnlyOld = isReadOnly ; if ( dataSourceNew == null ) { dataSourceNew = "" ; } disconnect ( ) ; dataSource = dataSource...
This method does some of the work involved with managing the creation and openning of the cache the rest is done in Log . java and TextCache . java .
160
32
155,274
protected void setDataSource ( Session session , String dataSourceNew , boolean isReversedNew , boolean createFile ) { if ( getTableType ( ) == Table . TEMP_TEXT_TABLE ) { ; } else { session . getGrantee ( ) . checkSchemaUpdateOrGrantRights ( getSchemaName ( ) . name ) ; } dataSourceNew = dataSourceNew . trim ( ) ; if ...
High level command to assign a data source to the table definition . Reassigns only if the data source or direction has changed .
224
27
155,275
void checkDataReadOnly ( ) { if ( dataSource . length ( ) == 0 ) { throw Error . error ( ErrorCode . TEXT_TABLE_UNKNOWN_DATA_SOURCE ) ; } if ( isReadOnly ) { throw Error . error ( ErrorCode . DATA_IS_READONLY ) ; } }
Used by INSERT DELETE UPDATE operations . This class will return a more appropriate message when there is no data source .
67
25
155,276
@ Override public void addBatch ( ) throws SQLException { checkClosed ( ) ; if ( this . Query . isOfType ( VoltSQL . TYPE_EXEC , VoltSQL . TYPE_SELECT ) ) { throw SQLError . get ( SQLError . ILLEGAL_STATEMENT , this . Query . toSqlString ( ) ) ; } this . addBatch ( this . Query . getExecutableQuery ( this . parameters ...
Adds a set of parameters to this PreparedStatement object s batch of commands .
119
16
155,277
@ Override public boolean execute ( ) throws SQLException { checkClosed ( ) ; boolean result = this . execute ( this . Query . getExecutableQuery ( this . parameters ) ) ; this . parameters = this . Query . getParameterArray ( ) ; return result ; }
Executes the SQL statement in this PreparedStatement object which may be any kind of SQL statement .
60
20
155,278
@ Override public ResultSet executeQuery ( ) throws SQLException { checkClosed ( ) ; if ( ! this . Query . isOfType ( VoltSQL . TYPE_EXEC , VoltSQL . TYPE_SELECT ) ) { throw SQLError . get ( SQLError . ILLEGAL_STATEMENT , this . Query . toSqlString ( ) ) ; } ResultSet result = this . executeQuery ( this . Query . getEx...
Executes the SQL query in this PreparedStatement object and returns the ResultSet object generated by the query .
126
22
155,279
@ Override public void setArray ( int parameterIndex , Array x ) throws SQLException { checkParameterBounds ( parameterIndex ) ; throw SQLError . noSupport ( ) ; }
Sets the designated parameter to the given java . sql . Array object .
42
15
155,280
@ Override public void setByte ( int parameterIndex , byte x ) throws SQLException { checkParameterBounds ( parameterIndex ) ; this . parameters [ parameterIndex - 1 ] = x ; }
Sets the designated parameter to the given Java byte value .
43
12
155,281
@ Override public void setBytes ( int parameterIndex , byte [ ] x ) throws SQLException { checkParameterBounds ( parameterIndex ) ; this . parameters [ parameterIndex - 1 ] = x ; }
Sets the designated parameter to the given Java array of bytes .
45
13
155,282
@ Override public void setCharacterStream ( int parameterIndex , Reader reader ) throws SQLException { checkParameterBounds ( parameterIndex ) ; throw SQLError . noSupport ( ) ; }
Sets the designated parameter to the given Reader object .
43
11
155,283
@ Override public void setDouble ( int parameterIndex , double x ) throws SQLException { checkParameterBounds ( parameterIndex ) ; this . parameters [ parameterIndex - 1 ] = x ; }
Sets the designated parameter to the given Java double value .
43
12
155,284
@ Override public void setFloat ( int parameterIndex , float x ) throws SQLException { checkParameterBounds ( parameterIndex ) ; this . parameters [ parameterIndex - 1 ] = ( double ) x ; }
Sets the designated parameter to the given Java float value .
46
12
155,285
@ Override public void setInt ( int parameterIndex , int x ) throws SQLException { checkParameterBounds ( parameterIndex ) ; this . parameters [ parameterIndex - 1 ] = x ; }
Sets the designated parameter to the given Java int value .
43
12
155,286
@ Override public void setLong ( int parameterIndex , long x ) throws SQLException { checkParameterBounds ( parameterIndex ) ; this . parameters [ parameterIndex - 1 ] = x ; }
Sets the designated parameter to the given Java long value .
43
12
155,287
@ Override public void setNString ( int parameterIndex , String value ) throws SQLException { checkParameterBounds ( parameterIndex ) ; throw SQLError . noSupport ( ) ; }
Sets the designated paramter to the given String object .
43
12
155,288
@ Override public void setNull ( int parameterIndex , int sqlType ) throws SQLException { checkParameterBounds ( parameterIndex ) ; switch ( sqlType ) { case Types . TINYINT : this . parameters [ parameterIndex - 1 ] = VoltType . NULL_TINYINT ; break ; case Types . SMALLINT : this . parameters [ parameterIndex - 1 ] = ...
Sets the designated parameter to SQL NULL .
322
9
155,289
@ Override public void setObject ( int parameterIndex , Object x ) throws SQLException { checkParameterBounds ( parameterIndex ) ; this . parameters [ parameterIndex - 1 ] = x ; }
Sets the value of the designated parameter using the given object .
43
13
155,290
@ Override public void setShort ( int parameterIndex , short x ) throws SQLException { checkParameterBounds ( parameterIndex ) ; this . parameters [ parameterIndex - 1 ] = x ; }
Sets the designated parameter to the given Java short value .
43
12
155,291
@ Override public void setTimestamp ( int parameterIndex , Timestamp x , Calendar cal ) throws SQLException { checkParameterBounds ( parameterIndex ) ; throw SQLError . noSupport ( ) ; }
Sets the designated parameter to the given java . sql . Timestamp value using the given Calendar object .
47
21
155,292
@ Override public void setURL ( int parameterIndex , URL x ) throws SQLException { checkParameterBounds ( parameterIndex ) ; this . parameters [ parameterIndex - 1 ] = x == null ? VoltType . NULL_STRING_OR_VARBINARY : x . toString ( ) ; }
Sets the designated parameter to the given java . net . URL value .
67
15
155,293
public final AbstractImporter createImporter ( ImporterConfig config ) { AbstractImporter importer = create ( config ) ; importer . setImportServerAdapter ( m_importServerAdapter ) ; return importer ; }
Method that is used by the importer framework classes to create an importer instance and wire it correctly for use within the server .
46
26
155,294
private static final byte [ ] expandToLength16 ( byte scaledValue [ ] , final boolean isNegative ) { if ( scaledValue . length == 16 ) { return scaledValue ; } byte replacement [ ] = new byte [ 16 ] ; if ( isNegative ) { Arrays . fill ( replacement , ( byte ) - 1 ) ; } int shift = ( 16 - scaledValue . length ) ; for ( ...
Converts BigInteger s byte representation containing a scaled magnitude to a fixed size 16 byte array and set the sign in the most significant byte s most significant bit .
120
32
155,295
public static BigDecimal deserializeBigDecimalFromString ( String decimal ) throws IOException { if ( decimal == null ) { return null ; } BigDecimal bd = new BigDecimal ( decimal ) ; // if the scale is too large, check for trailing zeros if ( bd . scale ( ) > kDefaultScale ) { bd = bd . stripTrailingZeros ( ) ; if ( bd...
Deserialize a Volt fixed precision and scale 16 - byte decimal from a String representation
213
17
155,296
private static boolean isFileModifiedInCollectionPeriod ( File file ) { long diff = m_currentTimeMillis - file . lastModified ( ) ; if ( diff >= 0 ) { return TimeUnit . MILLISECONDS . toDays ( diff ) + 1 <= m_config . days ; } return false ; }
value of diff = 0 indicates current day
70
8
155,297
public static boolean voltMutateToBigintType ( Expression maybeConstantNode , Expression parent , int childIndex ) { if ( maybeConstantNode . opType == OpTypes . VALUE && maybeConstantNode . dataType != null && maybeConstantNode . dataType . isBinaryType ( ) ) { ExpressionValue exprVal = ( ExpressionValue ) maybeConsta...
Given a ExpressionValue that is a VARBINARY constant convert it to a BIGINT constant . Returns true for a successful conversion and false otherwise .
146
30
155,298
private void getFKStatement ( StringBuffer a ) { if ( ! getName ( ) . isReservedName ( ) ) { a . append ( Tokens . T_CONSTRAINT ) . append ( ' ' ) ; a . append ( getName ( ) . statementName ) ; a . append ( ' ' ) ; } a . append ( Tokens . T_FOREIGN ) . append ( ' ' ) . append ( Tokens . T_KEY ) ; int [ ] col = getRefCo...
Generates the foreign key declaration for a given Constraint object .
343
14
155,299
private static void getColumnList ( Table t , int [ ] col , int len , StringBuffer a ) { a . append ( ' ' ) ; for ( int i = 0 ; i < len ; i ++ ) { a . append ( t . getColumn ( col [ i ] ) . getName ( ) . statementName ) ; if ( i < len - 1 ) { a . append ( ' ' ) ; } } a . append ( ' ' ) ; }
Generates the column definitions for a table .
98
9