addIndex: Indexes

Description Usage Arguments Details See Also Examples

View source: R/addIndex.R

Description

Add an index to a node label and property key.

Usage

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addIndex(graph, label, key)

Arguments

graph

A graph object.

label

A character string.

key

A character string.

Details

An index already exists for any (label, key) pair that has a uniqueness constraint applied. Attempting to add an index where a uniqueness constraint already exists results in an error. Use getConstraint to view any pre-existing uniqueness constraints. If a uniqueness constraint already exists for the (label, key) pair, then it must be true that the index exists as well; adding an index is unnecessary.

See Also

getIndex, dropIndex

Examples

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## Not run: 
graph = startGraph("http://localhost:7474/db/data/")
clear(graph)

createNode(graph, "Person", name="Alice", status="Employed")

addIndex(graph, "Person", "status")

## End(Not run)

RNeo4j documentation built on May 29, 2017, 4:01 p.m.

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