Keyword Analysis & Research: what is the use of index in postgresql

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is the use of index in postgresql	1.98	0.6	4266	27	38
what	0.01	0.7	8436	71	4
is	1.55	1	4803	49	2
the	1.13	0.4	1274	68	3
use	0.92	0.7	2092	70	3
of	1.04	0.8	1911	17	2
index	1.87	0.5	2815	50	5
in	1.58	0.8	5300	83	2
postgresql	1.7	0.1	5737	83	10

Keyword	CPC	PCC	Volume	Score
what is the use of index in postgresql	0.07	0.7	3263	58