<s>
LucidDB	B-Application
is	O
an	O
open-source	B-Application
database	O
purpose-built	O
to	O
power	O
data	O
warehouses	O
,	O
OLAP	B-Application
servers	O
and	O
business	B-General_Concept
intelligence	I-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
According	O
to	O
the	O
product	O
website	O
,	O
its	O
architecture	O
is	O
based	O
on	O
column-store	B-General_Concept
,	O
bitmap	O
indexing	O
,	O
hash	O
join/aggregation	O
,	O
and	O
page-level	O
multiversioning	O
.	O
</s>
<s>
Purpose-built	O
for	O
data	O
warehousing	O
,	O
OLAP	B-Application
,	O
and	O
business	B-General_Concept
intelligence	I-General_Concept
,	O
LucidDB	B-Application
is	O
a	O
"	O
columnar	O
Business	B-General_Concept
Intelligence	I-General_Concept
database	O
"	O
.	O
</s>
<s>
It	O
can	O
also	O
be	O
used	O
for	O
enterprise	B-General_Concept
information	I-General_Concept
integration	I-General_Concept
.	O
</s>
<s>
LucidDB	B-Application
uses	O
the	O
Optiq	O
query	O
planning	O
and	O
execution	O
framework	O
.	O
</s>
<s>
LucidDB	B-Application
achieves	O
high	O
performance	O
by	O
automatically	O
identifying	O
required	O
indexes	O
and	O
creating	O
them	O
on	O
the	O
fly	O
without	O
the	O
need	O
for	O
manual	O
intervention	O
.	O
</s>
<s>
LucidDB	B-Application
server	O
is	O
licensed	O
under	O
GPL	B-License
,	O
while	O
LucidDB	B-Application
client	O
is	O
licensed	O
under	O
LGPL	O
.	O
</s>
<s>
It	O
appears	O
that	O
LucidDB	B-Application
is	O
no	O
longer	O
being	O
maintained	O
based	O
on	O
its	O
GitHub	B-Application
entry	O
.	O
</s>
<s>
LucidDB	B-Application
has	O
had	O
a	O
long	O
run	O
as	O
the	O
first	O
pure	O
play	O
open	O
source	O
column	B-General_Concept
store	I-General_Concept
database	O
.	O
</s>
<s>
There	O
will	O
be	O
no	O
future	O
code	O
,	O
or	O
binary	O
releases	O
(	O
this	O
repository	O
may	O
at	O
some	O
point	O
)	O
of	O
luciddb	B-Application
.	O
</s>
<s>
Appreciate	O
all	O
the	O
effort	O
by	O
all	O
those	O
involved	O
with	O
LucidDB	B-Application
.	O
</s>
<s>
Optiq	O
,	O
has	O
given	O
home	O
and	O
new	O
life	O
to	O
portions	O
of	O
the	O
LucidDB	B-Application
codebase	O
.	O
</s>
