Regarding GIN Index in Postgresql
1
I am facing an issue that Even after creating a GIN INDEX execution plan is taking much time.
select email from customer where lower(email) like '%gmail';
CREATE INDEX idx1 ON customer USING gin (lower(email) gin_trgm_ops);.
Index created as "idx1" gin (lower(email::text) gin_trgm_ops)
explain plan gives as below
###
Bitmap Heap Scan on customer (cost=168.51..367.36 rows=194 width=22) (actual time=381.844..1807.673 rows=931488 loops=1)
Recheck Cond: (lower((email)::text) ~~ '%gmail.com'::text)
Rows Removed by Index Recheck: 556
Heap Blocks: exact=53254
-> Bitmap Index Scan on idx1 (cost=0.00..168.46 rows=194 width=0) (actual time=372.263..372.263 rows=933383 loops=1)
Index Cond: (lower((email)::text) ~~ '%gmail.com'::text)
Planning time: 0.741 ms
Execution time: 1988.646 ms
(8 rows)
Please let me know if this can be fine-tuned further
postgresql postgresql-9.4
edited 5 hours ago
tinlyx
1,21831129
asked 5 hours ago
Shaju M.KShaju M.K
61
New contributor
Shaju M.K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
1
I am facing an issue that Even after creating a GIN INDEX execution plan is taking much time.
select email from customer where lower(email) like '%gmail';
CREATE INDEX idx1 ON customer USING gin (lower(email) gin_trgm_ops);.
Index created as "idx1" gin (lower(email::text) gin_trgm_ops)
explain plan gives as below
###
Bitmap Heap Scan on customer (cost=168.51..367.36 rows=194 width=22) (actual time=381.844..1807.673 rows=931488 loops=1)
Recheck Cond: (lower((email)::text) ~~ '%gmail.com'::text)
Rows Removed by Index Recheck: 556
Heap Blocks: exact=53254
-> Bitmap Index Scan on idx1 (cost=0.00..168.46 rows=194 width=0) (actual time=372.263..372.263 rows=933383 loops=1)
Index Cond: (lower((email)::text) ~~ '%gmail.com'::text)
Planning time: 0.741 ms
Execution time: 1988.646 ms
(8 rows)
Please let me know if this can be fine-tuned further
postgresql postgresql-9.4
edited 5 hours ago
tinlyx
1,21831129
asked 5 hours ago
Shaju M.KShaju M.K
61
New contributor
Shaju M.K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Runvacuum full analyze customer, and can you show us the result ofd customer
– Evan Carroll
4 hours ago
Vacuum full was already completed and has reclaimed the space on the customer table............... Is there a way to create index in a different way and check
– Shaju M.K
3 hours ago
d customer email | character varying(100) | "mkt_customer_pk" PRIMARY KEY, btree (customerid) "a1" btree (age) "customer_email_gin_trgm_idx" gin (lower(email::text) gin_trgm_ops)
– Shaju M.K
3 hours ago
Hi Guys Can some one help with this issue?
– Shaju M.K
1 hour ago
how many rows do you even have in this table?
– Evan Carroll
1 hour ago
add a comment |
1
1
1
I am facing an issue that Even after creating a GIN INDEX execution plan is taking much time.
select email from customer where lower(email) like '%gmail';
CREATE INDEX idx1 ON customer USING gin (lower(email) gin_trgm_ops);.
Index created as "idx1" gin (lower(email::text) gin_trgm_ops)
explain plan gives as below
###
Bitmap Heap Scan on customer (cost=168.51..367.36 rows=194 width=22) (actual time=381.844..1807.673 rows=931488 loops=1)
Recheck Cond: (lower((email)::text) ~~ '%gmail.com'::text)
Rows Removed by Index Recheck: 556
Heap Blocks: exact=53254
-> Bitmap Index Scan on idx1 (cost=0.00..168.46 rows=194 width=0) (actual time=372.263..372.263 rows=933383 loops=1)
Index Cond: (lower((email)::text) ~~ '%gmail.com'::text)
Planning time: 0.741 ms
Execution time: 1988.646 ms
(8 rows)
Please let me know if this can be fine-tuned further
postgresql postgresql-9.4
edited 5 hours ago
tinlyx
1,21831129
asked 5 hours ago
Shaju M.KShaju M.K
61
New contributor
Shaju M.K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am facing an issue that Even after creating a GIN INDEX execution plan is taking much time.
select email from customer where lower(email) like '%gmail';
CREATE INDEX idx1 ON customer USING gin (lower(email) gin_trgm_ops);.
Index created as "idx1" gin (lower(email::text) gin_trgm_ops)
explain plan gives as below
###
Bitmap Heap Scan on customer (cost=168.51..367.36 rows=194 width=22) (actual time=381.844..1807.673 rows=931488 loops=1)
Recheck Cond: (lower((email)::text) ~~ '%gmail.com'::text)
Rows Removed by Index Recheck: 556
Heap Blocks: exact=53254
-> Bitmap Index Scan on idx1 (cost=0.00..168.46 rows=194 width=0) (actual time=372.263..372.263 rows=933383 loops=1)
Index Cond: (lower((email)::text) ~~ '%gmail.com'::text)
Planning time: 0.741 ms
Execution time: 1988.646 ms
(8 rows)
Please let me know if this can be fine-tuned further
postgresql postgresql-9.4
postgresql postgresql-9.4
edited 5 hours ago
tinlyx
1,21831129
asked 5 hours ago
Shaju M.KShaju M.K
61
New contributor
Shaju M.K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 5 hours ago
tinlyx
1,21831129
asked 5 hours ago
Shaju M.KShaju M.K
61
New contributor
Shaju M.K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 5 hours ago
tinlyx
1,21831129
edited 5 hours ago
tinlyx
1,21831129
edited 5 hours ago
tinlyx
1,21831129
1,21831129
asked 5 hours ago
Shaju M.KShaju M.K
61
New contributor
Shaju M.K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 5 hours ago
Shaju M.KShaju M.K
61
asked 5 hours ago
Shaju M.KShaju M.K
61
61
New contributor
Shaju M.K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Shaju M.K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Shaju M.K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Runvacuum full analyze customer, and can you show us the result ofd customer
– Evan Carroll
4 hours ago
Vacuum full was already completed and has reclaimed the space on the customer table............... Is there a way to create index in a different way and check
– Shaju M.K
3 hours ago
d customer email | character varying(100) | "mkt_customer_pk" PRIMARY KEY, btree (customerid) "a1" btree (age) "customer_email_gin_trgm_idx" gin (lower(email::text) gin_trgm_ops)
– Shaju M.K
3 hours ago
Hi Guys Can some one help with this issue?
– Shaju M.K
1 hour ago
how many rows do you even have in this table?
– Evan Carroll
1 hour ago
add a comment |
Runvacuum full analyze customer, and can you show us the result ofd customer
– Evan Carroll
4 hours ago
Vacuum full was already completed and has reclaimed the space on the customer table............... Is there a way to create index in a different way and check
– Shaju M.K
3 hours ago
d customer email | character varying(100) | "mkt_customer_pk" PRIMARY KEY, btree (customerid) "a1" btree (age) "customer_email_gin_trgm_idx" gin (lower(email::text) gin_trgm_ops)
– Shaju M.K
3 hours ago
Hi Guys Can some one help with this issue?
– Shaju M.K
1 hour ago
how many rows do you even have in this table?
– Evan Carroll
1 hour ago
Run
vacuum full analyze customer, and can you show us the result of d customer– Evan Carroll
4 hours ago
Run
vacuum full analyze customer, and can you show us the result of d customer– Evan Carroll
4 hours ago
Vacuum full was already completed and has reclaimed the space on the customer table............... Is there a way to create index in a different way and check
– Shaju M.K
3 hours ago
Vacuum full was already completed and has reclaimed the space on the customer table............... Is there a way to create index in a different way and check
– Shaju M.K
3 hours ago
d customer email | character varying(100) | "mkt_customer_pk" PRIMARY KEY, btree (customerid) "a1" btree (age) "customer_email_gin_trgm_idx" gin (lower(email::text) gin_trgm_ops)
– Shaju M.K
3 hours ago
d customer email | character varying(100) | "mkt_customer_pk" PRIMARY KEY, btree (customerid) "a1" btree (age) "customer_email_gin_trgm_idx" gin (lower(email::text) gin_trgm_ops)
– Shaju M.K
3 hours ago
Hi Guys Can some one help with this issue?
– Shaju M.K
1 hour ago
Hi Guys Can some one help with this issue?
– Shaju M.K
1 hour ago
how many rows do you even have in this table?
– Evan Carroll
1 hour ago
how many rows do you even have in this table?
– Evan Carroll
1 hour ago
add a comment |
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Run
vacuum full analyze customer, and can you show us the result ofd customer– Evan Carroll
4 hours ago
Vacuum full was already completed and has reclaimed the space on the customer table............... Is there a way to create index in a different way and check
– Shaju M.K
3 hours ago
d customer email | character varying(100) | "mkt_customer_pk" PRIMARY KEY, btree (customerid) "a1" btree (age) "customer_email_gin_trgm_idx" gin (lower(email::text) gin_trgm_ops)
– Shaju M.K
3 hours ago
Hi Guys Can some one help with this issue?
– Shaju M.K
1 hour ago
how many rows do you even have in this table?
– Evan Carroll
1 hour ago