Thanks guys, In terms of performance for looking up nodes are they equivalent?
On Sun, Feb 2, 2014 at 3:25 PM, Chris Vest <[email protected]>wrote: > Constraint indexes are created differently than non-constraint schema > indexes. Yet only one index can exist for a particular label/property key > combination at a time. Therefor you have to drop the ordinary index before > you can create a constraint on the same label/property key. A constraint > otherwise implies an index. > > -- > Chris Vest > System Engineer, Neo Technology > [ skype: mr.chrisvest, twitter: chvest ] > > > On 02 Feb 2014, at 01:57, Michael Hunger <[email protected]> > wrote: > > if it already exists it is not created again > > and yes for unique constraints we create a companion index > > On Sun, Feb 2, 2014 at 12:28 AM, Aran Mulholland > <[email protected]> wrote: > > If I use the following command: > > CREATE INDEX ON :Player(name) > > or > > CREATE CONSTRAINT ON pl:Player > ASSERT pl.name IS UNIQUE > > and the index or constraint already exists, does it hurt to issue the > command twice? > > Also, does creating a constraint implicitly create an index? > > Copied from the excellent slides at > http://www.slideshare.net/markhneedham/optimizing-cypher (page 12) > > -- > You received this message because you are subscribed to the Google Groups > "Neo4j" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- > You received this message because you are subscribed to the Google Groups > "Neo4j" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- > You received this message because you are subscribed to the Google Groups > "Neo4j" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
