Julian Hyde on Streaming Data, Open Source OLAP. And stuff.

Posts

Mar 4, 2025
Morel release 0.5.0
Mar 3, 2025
Into the Wilderness
Dec 31, 2023
File reader and progressive types in Morel version 0.4
Apr 9, 2020
Aggregate queries in Morel
Mar 31, 2020
Word Count revisited
Mar 10, 2020
Morel release 0.2
Mar 3, 2020
Morel: The basic language
Feb 25, 2020
Morel: A functional language for data
Feb 18, 2020
Blog reboot
May 5, 2014
Table macros
Mar 19, 2014
Improvements to Optiq's MongoDB adapter
Jun 17, 2013
Efficient SQL queries on MongoDB
Jun 3, 2013
Gathering requirements for olap4j 2.0
Apr 30, 2013
Need help
Mar 1, 2013
Optiq latest
Feb 26, 2013
Announcing Lingual
Jan 1, 2013
Explaining holidays to a 3 year old
Oct 31, 2012
Mondrian in Action in Action
Oct 31, 2012
Mondrian in Action
Jun 10, 2012
Pesky quoted identifiers in SQL
Jun 7, 2012
From the ashes of the database revolution...
Apr 23, 2012
A first look at linq4j
Apr 13, 2012
Data-oriented programming for the rest of us
Apr 11, 2012
"Big Data" is dead... long live Big Data Architecture
Apr 4, 2012
How should Mondrian get table and column statistics?
Feb 21, 2012
Auto-generated date dimension tables
Feb 7, 2012
olap4j releases version 1.0.1, switches to Apache license
Jan 14, 2012
Changes to Mondrian's caching architecture
Aug 24, 2011
How Mondrian names hierarchies
Jul 22, 2011
Real-Time Seismic Monitoring
Jun 9, 2011
Yellowfin BI release 5.2 moves to olap4j
Jun 3, 2011
Roll your own high-performance Java collections classes
Jun 1, 2011
Removing Mondrian's 'high cardinality dimension' feature
May 31, 2011
Scripted plug-ins in LucidDB and Mondrian
Apr 12, 2011
olap4j version 1.0 released
Feb 4, 2011
Scalable caching in Mondrian
Jan 25, 2011
Oracle, Hudson and Jenkins
Jan 6, 2011
"Just another big pile of data"
Dec 19, 2010
An experiment with the Linux scheduler
Nov 22, 2010
Architectural shuffling in mondrian's XMLA and olap4j servers
Nov 17, 2010
Numbers everyone should know
Oct 29, 2010
Concepts in Streaming SQL
Oct 7, 2010
Setting the current member of the time dimension automatically
Sep 19, 2010
Adding support for a new database to mondrian
Aug 17, 2010
September world tour
Aug 2, 2010
olap4j now talks to Palo and SAP BW
Jul 23, 2010
mondrian heading for 4.0
Jul 22, 2010
olap4j heading for 1.0
Jun 29, 2010
SQL past and future
Jun 22, 2010
The Data Tsunami: SQLstream at Structure 2010
Jun 17, 2010
Is Microsoft abandoning XML/A?
Jun 15, 2010
OLAP change notification, and the CellSetListener API
Jun 1, 2010
Adding profiling and query plans to mondrian
May 27, 2010
Bite Club
Apr 30, 2010
Intelligent Transportation in Houston
Apr 7, 2010
MySQL user conference 2010
Feb 16, 2010
Improved collections classes for Mondrian's query execution process
Jan 19, 2010
Data in Flight
Jan 14, 2010
xmla4js
Dec 8, 2009
Survey of open source business intelligence adoption
Oct 5, 2009
Pentaho Analyzer
Aug 17, 2009
What API should Facebook and FriendFeed use to publish the social stream?
Jul 29, 2009
Twitter makes the realtime web look more like the old web
Jul 26, 2009
An unfortunate fellow named Hyde
Jul 23, 2009
Introduction to Pentaho Analysis
Jul 10, 2009
Functional dependency optimizations in Mondrian
Jun 30, 2009
SQLstream powers Firefox 3.5 realtime downloads monitor
Jun 28, 2009
Black screen, white pointer on Vista
Jun 17, 2009
Spatial OLAP using GeoMondrian
Jun 11, 2009
Cell writeback in Mondrian
May 26, 2009
Webinar: Eliminating MySQL Bottlenecks and Replication Issues using Real-Time Queries & Continuous ETL
May 19, 2009
Explaining the structure of Mondrian schemas
May 11, 2009
Clapham: A railroad diagram generator
Apr 30, 2009
How Mondrian evaluates expressions
Apr 27, 2009
PAT 0.2
Apr 10, 2009
Formatting MDX as plain text
Apr 7, 2009
The last MDX holdout folds, but true OLAP interop is still a long way off
Apr 5, 2009
A what-if scenario: musing about adding writeback capability to Mondrian
Mar 31, 2009
Time crosstab in Mondrian
Mar 23, 2009
Being an open source vendor is like being Irish
Mar 11, 2009
Pentaho Partner Summit 2009
Feb 27, 2009
Golden Gate Raptor Observatory is seeking volunteers
Feb 16, 2009
Welcome, Sebastian Hyde!
Feb 7, 2009
Calculus: it's so basic that even moronic headline writers should know about it
Feb 1, 2009
Michael Coté on SQLstream
Jan 30, 2009
Recursive event-driven demo
Jan 29, 2009
Event-driven marketing
Jan 26, 2009
SQLstream 2.0
Jan 22, 2009
Pentaho Analysis Tool
Jan 22, 2009
Gartner releases Magic Quadrant for Business Intelligence
Jan 7, 2009
Hard-won lessons in Mondrian query optimization
Dec 15, 2008
Streaming content feeds part 2: forging the Streaming Web
Dec 12, 2008
Streaming analytics over content feeds (and how content feeds could be better)
Nov 25, 2008
Upgrading to ubuntu 8.10 Intrepid Ibex
Nov 17, 2008
Tutorial video for Kettle and Mondrian
Nov 11, 2008
Trend arrows in JPivot
Nov 4, 2008
To: Rest of World
Nov 3, 2008
OpenMRS coverage
Nov 2, 2008
Lost in translation
Oct 27, 2008
Academia meets Open Source
Oct 22, 2008
Pentaho 2.0 brings good things
Sep 26, 2008
The only pie chart you can really trust
Sep 26, 2008
GOTO considered harmful
Sep 23, 2008
Chain blog
Sep 21, 2008
Is Oracle about to embrace MPP?
Sep 15, 2008
Fall migration kicks in...
Sep 3, 2008
SQL extension to allow FIRST_VALUE and LAST_VALUE in GROUP BY query
Aug 27, 2008
Database virtualization, distributed caching and streaming SQL
Aug 27, 2008
Hawkwatch
Aug 19, 2008
Mondrian on TimesTen
Aug 18, 2008
Really urgent analytics
Jul 14, 2008
The process of database research
Jul 7, 2008
Mondrian, Flex and Openbravo
Jun 27, 2008
More from my mother's funeral service
Jun 26, 2008
Eulogy for Judy Hyde
Jun 5, 2008
Mainz community meet up is just one week away
May 11, 2008
Maven and Ivy
Apr 15, 2008
Mondrian in Mainz
Feb 27, 2008
Streaming SQL meets OLAP
Feb 13, 2008
30% less bad
Feb 10, 2008
Democracy, caucus-style
Feb 6, 2008
A nice little OLAP viewer
Dec 19, 2007
Vista Service Pack 1 Release Candidate
Nov 18, 2007
olap4j support for scrolling result sets
Sep 30, 2007
SDForum BI SIG
Sep 27, 2007
OpenMRS
Sep 27, 2007
New access-control features in mondrian
Sep 21, 2007
A nice way to populate those pesky closure tables
Sep 16, 2007
Open standards and open-source: The ballad of BIRT and olap4j
Aug 31, 2007
mondrian release 2.4 and beyond
Jul 23, 2007
BI Survey
Mar 27, 2007
Mondrian (and me) at MySQL
Feb 19, 2007
Mondrian at FISL - 8th International Free Software Forum
Feb 13, 2007
Mondrian cache control
Jan 1, 2007
Mondrian URLs and Jakarta Commons VFS
Dec 3, 2006
What's in a name?
Nov 9, 2006
An old object-database company learns new tricks
Nov 2, 2006
The kindness of strangers
Oct 20, 2006
Faster Development Through Modeling
Oct 15, 2006
Mondrian 2.2, Cube Designer, and CurrentDateMember
Sep 3, 2006
First draft of olap4j specification released
Aug 24, 2006
grajax
Aug 24, 2006
New book on aggregate table design
Aug 20, 2006
My nephew has hiccups
Aug 17, 2006
Phew
Aug 17, 2006
Your point, exactly? My point. Exactly.