TimeSeries Technical               PresentationJacques RoyDecember 14, 2011                 © 2010 IBM Corporation
Agenda■    Review from last April■    New features in xC3■    New features in xC4■    Demo: IBM Informix TimeSeries Plug-i...
IBM Information ManagementWho’s Interested in TimeSeries     Energy: smart meters     Capital Markets      – Arbitrage o...
TimeSeries: Key Concepts     ■   Containers           – Specialized storage for TimeSeries             EXECUTE PROCEDURE  ...
IBM Information ManagementFeatures Unique to Regular TimeSeries     Only one element per “on” interval     Value "persis...
IBM Information ManagementFeatures Unique to Irregular TimeSeries     Data can be entered at any time point within a vali...
IBM Information ManagementAccessing Timeseries     Access through standard tabular view      – Makes TimeSeries look like...
IBM Information ManagementTimeSeries Header     A TimeSeries needs information that sets its context:       – Calendar: T...
IBM Information ManagementCalendar and Calendar Patterns     A calendar pattern is needed before we can create a calendar...
IBM Information ManagementTimeSeries: Table      A TimeSeries resides in a table:     CREATE TABLE ts_data (            l...
IBM Information ManagementPopulating a TimeSeries      A timeSeries must first be created:         INSERT INTO daily_max ...
IBM Information ManagementThe Virtual Table Interface      Makes a TimeSeries look like a table:         EXECUTE PROCEDUR...
IBM Information ManagementQuick Review      A TimeSeries resides in a container       – The container resides in a dbspac...
IBM Information ManagementNew Features in 11.70.xC3        New platforms supported        Stores demo        18-charact...
IBM Information ManagementNew platforms supported             TimeSeries is part of the Informix server as of 11.70.xC3  ...
IBM Information ManagementStores Demo      Script $INFORMIXDIR/bin/dbaccessdemo        – Adds smart meter information to ...
IBM Information Management18-Character Limit Removal      Container name limit raised to 128 characters      Subtype nam...
IBM Information ManagementPre-Defined Calendars      Goal: Provide common calendars      Calendars added:         – ts_1...
IBM Information ManagementContainer Statistics Functions       All functions take a container name or NULL        – If NU...
IBM Information ManagementContainer Statistics Functions      EXECUTE FUNCTION TSContainerTotalUsed(NULL);            page...
IBM Information ManagementContainer Statistics Functions      EXECUTE FUNCTION TSContainerUsage(NULL);            pages   ...
IBM Information ManagementXML Generation      Ability to Generate XML from a TimeSeries      Function syntax:      CREAT...
IBM Information ManagementXML Generation Parameters description        doctype:          Name of the topmost XML element ...
IBM Information ManagementXML Generation Example     SELECT TSToXML(meterdata, esi_id,      Clip(actual, 2010-09-08 12:00:...
IBM Information ManagementDelete Performance      Deleting a row that includes a TimeSeries      Same code used in DelTr...
IBM Information ManagementAuto-Create Container Feature      Automatic creation of containers      Container pools     ...
IBM Information ManagementAutomatic Creation of Containers      Feature: Find or create a container to use      Benefit:...
IBM Information ManagementContainer Pools      New column (pool) in TSContainerTable      autopool: default pool of cont...
IBM Information ManagementContainer Selection      Search autopool for a set of candidate containers      Select the con...
IBM Information ManagementPool Policy: TSContainerPoolRoundRobin      Select a container from a pool in a round robin man...
IBM Information ManagementPool Policy: TSContainerPoolRoundRobin     function TSContainerPoolRoundRobin(       tabname lva...
IBM Information ManagementPool Policy: Create your own     function <pool_policy_name>(       tabname lvarchar,       coln...
IBM Information ManagementTS VTI Improvements      Make the NOT NULL contraint on base table visible through VTI      Us...
IBM Information ManagementVTI Expression Pushdown      Provide pre-processed views of TimeSeries      Example:      “Cre...
IBM Information ManagementVTI Expression Pushdown: Result     SELECT * FROM smartmeters_expr1_vti     WHERE t >= 2011-01-0...
IBM Information ManagementVTI: TSCreateExpressionVirtualTab      More than one “view” can be created on a TimeSeries     ...
IBM Information ManagementVTI Expression Pushdown Keyword substitution: $ts_begin_time, $ts_end_time Used to substitute ...
IBM Information ManagementNew Features in 11.70.xC4      TSRollup      Eclipse TimeSeries tooling for fast loading     ...
IBM Information ManagementTSRollup      SQL aggregate function      Rollup multiple TimeSeries into one              SEL...
IBM Information ManagementThe IBM Informix TimeSeries Plug-in for...       Official name:        IBM Informix TimeSeries ...
IBM Information ManagementInstalling the plug-in       Plug-in location: (any platform)         – $INFORMIXDIR/extend/Tim...
IBM Information Management     Demo     IBM Informix TimeSeries Plug-in for Data Studio42                   Informix Dynam...
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  1. 1. TimeSeries Technical PresentationJacques RoyDecember 14, 2011 © 2010 IBM Corporation
  2. 2. Agenda■ Review from last April■ New features in xC3■ New features in xC4■ Demo: IBM Informix TimeSeries Plug-in for Data Studio 2 © 2010 IBM Corporation
  3. 3. IBM Information ManagementWho’s Interested in TimeSeries  Energy: smart meters  Capital Markets – Arbitrage opportunities, breakout signals, risk/return optimization, portfolio management, VaR calculations, simulations, backtesting...  Telecommunications: – Network monitoring, load prediction, blocked calls (lost revenue) from load, phone usage, fraud detection and analysis...  Manufacturing: – Machinery going out of spec; process sampling and analysis  Logistics: – Location of a fleet (e.g. GPS); route analysis  Scientific research: – Temperature over time...3 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  4. 4. TimeSeries: Key Concepts ■ Containers – Specialized storage for TimeSeries EXECUTE PROCEDURE TSContainerCreate(raw_container, rootdbs, meter_data, 100, 50); ■ Timeseries data element: row type – Flexibility to define as many parts as needed CREATE ROW TYPE meter_data ( tstamp datetime year to fraction(5), value decimal(14,3) ); ■ Timeseries types: regular, irregular – Covers regular intervals and sparse data distribution ■ Calendar – Defines business patterns 4 © 2010 IBM Corporation
  5. 5. IBM Information ManagementFeatures Unique to Regular TimeSeries  Only one element per “on” interval  Value "persists" to end of interval  An element for an “on” interval may be missing, entire element will be NULL  Calendar determines offset in TimeSeries of given time point  Elements can be accessed by offset or time point  Time point not stored; calculated from header + date/time arithmetic  Precision to second5 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  6. 6. IBM Information ManagementFeatures Unique to Irregular TimeSeries  Data can be entered at any time point within a valid "on" interval  Element persist until next element  No NULL elements  Elements can only be accessed by time  No duplicate time points allowed  If element already exists at given time point either an error is raise or a unique time point is found: – round time point up to nearest second – search back for first element – add 10 microseconds, this is new time point6 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  7. 7. IBM Information ManagementAccessing Timeseries  Access through standard tabular view – Makes TimeSeries look like a standard relational table  SQL Functions – 103 functions  Customized functions – Written in Stored Procedure Language (SPL), “C”, Java – 65 “C” functions7 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  8. 8. IBM Information ManagementTimeSeries Header  A TimeSeries needs information that sets its context: – Calendar: Time period where data is found – Origin: Time origin of the TimeSeries – Threshold: in-row storage threshold – Container: where to store the out-of-row data – Metadata: optional data added by the TimeSeries creator8 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  9. 9. IBM Information ManagementCalendar and Calendar Patterns  A calendar pattern is needed before we can create a calendar: INSERT INTO CalendarPatterns VALUES(day, {1 on, 2 off, 4 on}, day );  A Calendar defines a set of valid times at which the TimeSeries can record data. (July 8, 2005 is a Friday) INSERT INTO CalendarTable(c_name, c_calendar) VALUES(ts_1day, startdate(2011-07-08 00:00:00.00000), pattstart(2011-07-08 00:00:00.00000), pattname(day) );  You can provide a pattern explicitly: INSERT INTO CalendarTable(c_name, c_calendar) VALUES(ts_1week, startdate(2011-07-08 00:00:00.00000), pattstart(2011-07-08 00:00:00.00000), pattern({1 on, 2 off, 4 on}, day) );9 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  10. 10. IBM Information ManagementTimeSeries: Table  A TimeSeries resides in a table: CREATE TABLE ts_data ( loc_esi_id char(20) NOT NULL, measure_unit varchar(10) NOT NULL, direction char(1) NOT NULL, multiplier TimeSeries(meter_data), raw_reads timeseries(meter_data), PRIMARY KEY(loc_esi_id, measure_unit, direction) ) LOCK MODE ROW;10 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  11. 11. IBM Information ManagementPopulating a TimeSeries  A timeSeries must first be created: INSERT INTO daily_max VALUES("100700411", TSCreate(ts_1day, 2011-07-08 00:00:00.00000, 20, 0, 0, container1) );  It can be created through the input function: INSERT INTO failure_event VALUES("10110475", irregular, container(container2), origin(2011-01-01 00:00:00.00000), calendar(cal1sec), [(4.48, . . .)@2011-04-03 06:30:03.00003, (4.50,. . .)@2011-07-03 06:30:03.00119, . . .] );11 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  12. 12. IBM Information ManagementThe Virtual Table Interface  Makes a TimeSeries look like a table: EXECUTE PROCEDURE TSCreateVirtualTab(ts_data_v, ts_data, origin(2010-11-10 00:00:00.00000), calendar(ts_15min),container(raw_container), threshold(0), regular, 0, raw_reads);  Virtual table created: CREATE TABLE ts_data_v ( loc_esi_id char(20), measure_unit varchar(10,0), direction char(1), tstamp datetime year to fraction(5), value decimal(14,3) );12 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  13. 13. IBM Information ManagementQuick Review  A TimeSeries resides in a container – The container resides in a dbspace – The container is for a specific element type (row type) – A container is for either a regular or irregular TimeSeries (not both) – A container can contain multiple TimeSeries  A TimeSeries requires a calendar – Defines when the data starts, defines a pattern of valid values  A TimeSeries data is defines as a row type – Defines the values tracked  You can operate on TimeSeries through special SQL functions or use the virtual table interface and standard SQL13 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  14. 14. IBM Information ManagementNew Features in 11.70.xC3  New platforms supported  Stores demo  18-character limit removal  Pre-defined calendars  Container statistics  XML generation  Delete performance  Auto-create container  VTI expression pushdown14 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  15. 15. IBM Information ManagementNew platforms supported  TimeSeries is part of the Informix server as of 11.70.xC3  New platforms that include TimeSeries: – Redhat Linux 32- and 64-bit environment – Mac OS 10 – Linux on pSeries – Solaris x86_64  See: https://www-304.ibm.com/support/docview.wss?rs=630&uid=swg27013343&S_CMP=rnav15 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  16. 16. IBM Information ManagementStores Demo  Script $INFORMIXDIR/bin/dbaccessdemo – Adds smart meter information to customers – Can be disables using -nots  Includes calendars: – ts_1min, ts_15min, ts_30min, ts_1hour, ts_1day, ts_1week, ts_1month  Row types: – meter_data, meter_data2  Tables: – ts_data: TimeSeries information – customer_ts_data: Ties the customer table to ts_data – ts_data_location: provides geo location for the meters  All data fictitious, real locations with no ties to the data16 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  17. 17. IBM Information Management18-Character Limit Removal  Container name limit raised to 128 characters  Subtype name raised to 128 characters  Longer container name supported in string representation  Tables affected: – TSInstanceTable – TimeSeries instance information – TSContainerTable – Container information table  SetContainerName(ts, container_name) – Second argument increased size17 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  18. 18. IBM Information ManagementPre-Defined Calendars  Goal: Provide common calendars  Calendars added: – ts_1min – ts_15min – ts_30min – ts_1hour – ts_1day – ts_1week – Starts on Sunday – ts_1month 18 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  19. 19. IBM Information ManagementContainer Statistics Functions  All functions take a container name or NULL – If NULL, cover all containers  TSContainerTotalPages – Total number of pages allocated to a container  TSContainerTotalUsed – Number of pages containing TimeSeries data  TSContainerNElems – Total number of elements stored in a container  TSContainerPctUsed – (used * 100) / total  TSContainerUsage – Returns used, nelems, and total19 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  20. 20. IBM Information ManagementContainer Statistics Functions EXECUTE FUNCTION TSContainerTotalUsed(NULL); pages 2029 EXECUTE FUNCTION TSContainerTotalPages(NULL); total 2169 EXECUTE FUNCTION TSContainerNElems(NULL); elements 241907 EXECUTE FUNCTION TSContainerPctUsed(NULL); percent 93.54520 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  21. 21. IBM Information ManagementContainer Statistics Functions EXECUTE FUNCTION TSContainerUsage(NULL); pages slots total 2029 241907 216921 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  22. 22. IBM Information ManagementXML Generation  Ability to Generate XML from a TimeSeries  Function syntax: CREATE FUNCTION TSToXML( doctype lvarchar, id lvarchar, ts TimeSeries, output_max integer DEFAULT 0) RETURNS lvarchar;22 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  23. 23. IBM Information ManagementXML Generation Parameters description  doctype: Name of the topmost XML element  id: Identification for the TimeSeries  ts: TimeSeries to process  output_max: Max output size, default of 0 represents 32KB minimum of 4096, maximum of 2GB  Output additonal element: <AllData>  <AllData>1</AllData>: All data was returned  <AllData>0</AllData>: The TS data was truncated to fit the output max.  Still a valid XML document23 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  24. 24. IBM Information ManagementXML Generation Example SELECT TSToXML(meterdata, esi_id, Clip(actual, 2010-09-08 12:00:00::datetime year to second, 2010-09-08 13:00:00::datetime year to second ) ) FROM meters WHERE esi_id = 22505613346851835; <meterdata> <id>2250561334</id> <AllData>1</AllData> <meter_data> <tstamp>2010-09-08 12:15:00.00000</tstamp> <value>0.9170000000</value> </meter_data> <meter_data> . . . </meterdata>24 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  25. 25. IBM Information ManagementDelete Performance  Deleting a row that includes a TimeSeries  Same code used in DelTrim()  Tests deleting all elements of TimeSeries of different sizes: # of Previous TS New TS Improvement elements Version Version 10,000 0m0.409s 0m0.159s 2.5X 30,000 0m0.630s 0m0.315s 2X 100,000 0m2.894s 0m1.132s 2.5X 300,000 0m15.988s 0m5.159s 3X 1,000,000 5m45.837s 0m18.330s 18X 3,000,000 146m52.861s 1m26.456s 101X25 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  26. 26. IBM Information ManagementAuto-Create Container Feature  Automatic creation of containers  Container pools  Round-robin insertion into containers26 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  27. 27. IBM Information ManagementAutomatic Creation of Containers  Feature: Find or create a container to use  Benefit: Avoid errors in insert if the container name is not set  When – a new TimeSeries is inserted – No “autopool” container available  What – New container(s) created – Container names: autopoolnnnnnnnn – Added to the default pool: autopool  Where – Each dbspace used by the target table27 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  28. 28. IBM Information ManagementContainer Pools  New column (pool) in TSContainerTable  autopool: default pool of containers created by auto-create container  Create containers (as before) TSContainerCreate(<container_name>, <dbspace>, <initial_size_kb>, <next_size_kb>);  Add a container to a pool TSContainerSetPool(<container_name>, <pool_name>) – Pool created automatically – A container can be in only one pool at a time  Remove a container from its current pool TSContainerSetPool(<container_name>)28 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  29. 29. IBM Information ManagementContainer Selection  Search autopool for a set of candidate containers  Select the container with the greatest amount of free space29 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  30. 30. IBM Information ManagementPool Policy: TSContainerPoolRoundRobin  Select a container from a pool in a round robin manner and return the name  Example*: INSERT INTO smartmeters(meter_id,rawreadings) VALUES(met00001,origin(2006-01-01 00:00:00.00000), calendar(smartmeter),regular,threshold(0), container(TSContainerPoolRoundRobin(readings)), [(33070,-13.00,100.00,9.98e+34), (19347,-4.00,100.00,1.007e+35), (17782,-18.00,100.00,9.83e+34)]);  Position kept in memory * Note: the call to TSContainerPoolRoundRobin is a string30 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  31. 31. IBM Information ManagementPool Policy: TSContainerPoolRoundRobin function TSContainerPoolRoundRobin( tabname lvarchar, colname lvarchar, subtype lvarchar, irregular integer, poolname lvarchar) returns lvarchar;  tabname: name of the table where the TS value is being inserted  colname: name of the TimeSeries column where the TS value is being inserted  subtype: subtype TS value (row type) is being inserted  irregular: kind of TS value (0 – regular, 1 – irregular, integer)  poolname: name of the container pool to use31 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  32. 32. IBM Information ManagementPool Policy: Create your own function <pool_policy_name>( tabname lvarchar, colname lvarchar, subtype lvarchar, irregular integer [,user_data lvarchar] ) returns lvarchar;  Tailor the container selection policy to fit your environment32 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  33. 33. IBM Information ManagementTS VTI Improvements  Make the NOT NULL contraint on base table visible through VTI  Use only the primary key columns to locate the appropriate row to update – Benefit: Allow NULLs in non-primary key columns – If the primary key of the base table is altered, any TS VTI tables based on that base table will need to be recreated – If no primary key, use all non-TS columns  New TSVTMode flags: – TS_VTI_UPDATE_NONKEY_NOT_NULLS (32) – Only not null updatable columns of the insert row will be added to the set clause – TS_VTI_UPDATE_NONKEY_INCLUDE_NULLS (64) – all the updateable columns of the insert row will be added to the set clause33 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  34. 34. IBM Information ManagementVTI Expression Pushdown  Provide pre-processed views of TimeSeries  Example: “Create a hourly moving average and get the max value per day” (Table: smartmeters, column: readings) EXECUTE PROCEDURE TSCreateExpressionVirtualTab( smartmeters_expr1_vti, smartmeters, "AggregateBy(max($value),smartmeter_daily, Apply(TSRunningAvg($energy, 4), $ts_begin_time, $ts_end_time,readings )::TimeSeries(onereal_row), 0)",onereal_row);34 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  35. 35. IBM Information ManagementVTI Expression Pushdown: Result SELECT * FROM smartmeters_expr1_vti WHERE t >= 2011-01-01 00:00:00.00000::datetime year to fraction(5) AND t <= 2011-01-02 23:59:59.99999::datetime year to fraction(5); meter_id t value met00000 2011-01-01 00:00:00.00000 30.25000000000 met00000 2011-01-02 00:00:00.00000 29.50000000000 met00001 2011-01-01 00:00:00.00000 29.75000000000 met00001 2011-01-02 00:00:00.00000 31.00000000000 . . .35 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  36. 36. IBM Information ManagementVTI: TSCreateExpressionVirtualTab  More than one “view” can be created on a TimeSeries  Very similar to TSCreateVirtualTab but read-only interface TSCreateExpressionVirtualTab( VirtualTable VARCHAR(128,1), BaseTablename VARCHAR(128,1), expression LVARCHAR, subtype VARCHAR(128,1) TSVTMode INTEGER DEFAULT 0 TSColName VARCHAR(128,1) DEFAULT NULL);36 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  37. 37. IBM Information ManagementVTI Expression Pushdown Keyword substitution: $ts_begin_time, $ts_end_time Used to substitute the time from the runtime query in the expression view: Example expression: Apply(TSRunningAvg($energy, 4), $ts_begin_time, $ts_end_time,readings )::TimeSeries(onereal_row) Query including:WHERE t >= 2011-01-01 00:00:00.00000::datetime year to fraction(5)AND t <= 2011-01-02 23:59:59.99999::datetime year to fraction(5);37 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  38. 38. IBM Information ManagementNew Features in 11.70.xC4  TSRollup  Eclipse TimeSeries tooling for fast loading  Bug fixes and performance improvements38 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  39. 39. IBM Information ManagementTSRollup  SQL aggregate function  Rollup multiple TimeSeries into one SELECT TSRollup(tscol, "sum($releve), avg($puissance)" )::timeseries(myrollup_t) FROM . . . WHERE . . . GROUP BY . . .39 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  40. 40. IBM Information ManagementThe IBM Informix TimeSeries Plug-in for...  Official name: IBM Informix TimeSeries Plug-in for Data Studio  Requires IBM Data Studio – IBM Data Studio version or IBM Optim Developer Studio, version 2.2.1 or later – Should work with Eclipse – Part of the Informix media – Can be downloaded from IBM: – Go to: http://www.ibm.com/developerworks/downloads/im/data/ – Select IDE Red Hat Linux, SUSE Linux, Windows (826MB)40 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  41. 41. IBM Information ManagementInstalling the plug-in  Plug-in location: (any platform) – $INFORMIXDIR/extend/TimeSeries.5.00.xC2/plugin/ts_datastudio.zip – Move this file to the machine that runs Data Studio  Start Data Studio  Select Help → Software Updates... – Select Add Site... – Select Archive... – Navigate to the zip file and add it – Select exported repositories – Click install41 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation
  42. 42. IBM Information Management Demo IBM Informix TimeSeries Plug-in for Data Studio42 Informix Dynamic Server, TimeSeries DataBlade Module class © 2007 IBM Corporation

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