diff options
| author | Bruce Momjian | 2005-12-17 17:04:41 +0000 |
|---|---|---|
| committer | Bruce Momjian | 2005-12-17 17:04:41 +0000 |
| commit | 16843ba33c54178d15d5b66fed8d3170273cb61c (patch) | |
| tree | 8551ceb48711f1db049fb9b48b3600a4b678a0f9 | |
| parent | 9e9a844f551249d4594894f683a5f0a1d9b73431 (diff) | |
Add mention of possible patent problems with star joins, per Joshua
Drake:
< and merge the bitmaps to perform the join on the fact table.
> and merge the bitmaps to perform the join on the fact table. Some
> of these algorithms might be patented.
| -rw-r--r-- | doc/TODO | 5 | ||||
| -rw-r--r-- | doc/src/FAQ/TODO.html | 5 |
2 files changed, 6 insertions, 4 deletions
@@ -2,7 +2,7 @@ PostgreSQL TODO List ==================== Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) -Last updated: Sat Dec 17 11:43:02 EST 2005 +Last updated: Sat Dec 17 12:03:45 EST 2005 The most recent version of this document can be viewed at http://www.postgresql.org/docs/faqs.TODO.html. @@ -1036,7 +1036,8 @@ Optimizer / Executor usually performed by either creating a cartesian product of all the dimmension tables and doing a single join on that product or using subselects to create bitmaps of each dimmension table match - and merge the bitmaps to perform the join on the fact table. + and merge the bitmaps to perform the join on the fact table. Some + of these algorithms might be patented. Miscellaneous Performance diff --git a/doc/src/FAQ/TODO.html b/doc/src/FAQ/TODO.html index ef8a024fb11..399b8250f5b 100644 --- a/doc/src/FAQ/TODO.html +++ b/doc/src/FAQ/TODO.html @@ -8,7 +8,7 @@ <body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF"> <h1><a name="section_1">PostgreSQL TODO List</a></h1> <p>Current maintainer: Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/> -Last updated: Sat Dec 17 11:43:02 EST 2005 +Last updated: Sat Dec 17 12:03:45 EST 2005 </p> <p>The most recent version of this document can be viewed at<br/> <a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>. @@ -940,7 +940,8 @@ first. usually performed by either creating a cartesian product of all the dimmension tables and doing a single join on that product or using subselects to create bitmaps of each dimmension table match - and merge the bitmaps to perform the join on the fact table. + and merge the bitmaps to perform the join on the fact table. Some + of these algorithms might be patented. </p> </li></ul> <h1><a name="section_21">Miscellaneous Performance</a></h1> |