JSONB Array of Strings (with GIN index) versus Split Rows (B-Tree Index)
Multi tool use
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I have a database which stores receiver to indicate which account the data relates to. This has led to tons of duplication of data, as one set of data may create 3 separate rows, where the only difference is the receiver column.
|---------------------|------------------|---------------------|------------------|
| Receiver | Event | Date | Location |
|---------------------|------------------|---------------------|------------------|
| Alpha | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
| Bravo | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
| Charlie | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
While redesigning the database, I have considered using an array with a GIN index instead of the current B-Tree index on receiver. My proposed new table would look like this:
|-------------------------------|--------------|------------|-------------------|
| Receivers | Event | Date | Location |
|-------------------------------|--------------|------------|-------------------|
| ["Alpha", "Bravo", "Charlie"] | 3 | 12 | USA |
|-------------------------------|--------------|------------|-------------------|
More Information:
- Receiver names are of the type (a-z, 1-5, .)
- 95% of all queries currently look like this:
SELECT * FROM table WHERE Receiver = Alpha, with the new format this would beSELECT * FROM table WHERE receivers @> '"Alpha"'::jsonb;
- The table currently contains over 4 billion rows (with duplication) and the new proposed schema would cut it down to under 2 billion rows.
Question:
- Does it make more sense to use Postgres Native Text Array?
- Would a
jsonb_path_opsGIN index on receivers make sense here? - Which option is more efficient? Which is faster?
postgresql database-design index postgresql-performance postgresql-11
asked 1 hour ago
Syed JafriSyed Jafri
11
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I have a database which stores receiver to indicate which account the data relates to. This has led to tons of duplication of data, as one set of data may create 3 separate rows, where the only difference is the receiver column.
|---------------------|------------------|---------------------|------------------|
| Receiver | Event | Date | Location |
|---------------------|------------------|---------------------|------------------|
| Alpha | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
| Bravo | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
| Charlie | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
While redesigning the database, I have considered using an array with a GIN index instead of the current B-Tree index on receiver. My proposed new table would look like this:
|-------------------------------|--------------|------------|-------------------|
| Receivers | Event | Date | Location |
|-------------------------------|--------------|------------|-------------------|
| ["Alpha", "Bravo", "Charlie"] | 3 | 12 | USA |
|-------------------------------|--------------|------------|-------------------|
More Information:
- Receiver names are of the type (a-z, 1-5, .)
- 95% of all queries currently look like this:
SELECT * FROM table WHERE Receiver = Alpha, with the new format this would beSELECT * FROM table WHERE receivers @> '"Alpha"'::jsonb;
- The table currently contains over 4 billion rows (with duplication) and the new proposed schema would cut it down to under 2 billion rows.
Question:
- Does it make more sense to use Postgres Native Text Array?
- Would a
jsonb_path_opsGIN index on receivers make sense here? - Which option is more efficient? Which is faster?
postgresql database-design index postgresql-performance postgresql-11
asked 1 hour ago
Syed JafriSyed Jafri
11
New contributor
Syed Jafri 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 |
0
0
0
I have a database which stores receiver to indicate which account the data relates to. This has led to tons of duplication of data, as one set of data may create 3 separate rows, where the only difference is the receiver column.
|---------------------|------------------|---------------------|------------------|
| Receiver | Event | Date | Location |
|---------------------|------------------|---------------------|------------------|
| Alpha | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
| Bravo | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
| Charlie | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
While redesigning the database, I have considered using an array with a GIN index instead of the current B-Tree index on receiver. My proposed new table would look like this:
|-------------------------------|--------------|------------|-------------------|
| Receivers | Event | Date | Location |
|-------------------------------|--------------|------------|-------------------|
| ["Alpha", "Bravo", "Charlie"] | 3 | 12 | USA |
|-------------------------------|--------------|------------|-------------------|
More Information:
- Receiver names are of the type (a-z, 1-5, .)
- 95% of all queries currently look like this:
SELECT * FROM table WHERE Receiver = Alpha, with the new format this would beSELECT * FROM table WHERE receivers @> '"Alpha"'::jsonb;
- The table currently contains over 4 billion rows (with duplication) and the new proposed schema would cut it down to under 2 billion rows.
Question:
- Does it make more sense to use Postgres Native Text Array?
- Would a
jsonb_path_opsGIN index on receivers make sense here? - Which option is more efficient? Which is faster?
postgresql database-design index postgresql-performance postgresql-11
asked 1 hour ago
Syed JafriSyed Jafri
11
New contributor
Syed Jafri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I have a database which stores receiver to indicate which account the data relates to. This has led to tons of duplication of data, as one set of data may create 3 separate rows, where the only difference is the receiver column.
|---------------------|------------------|---------------------|------------------|
| Receiver | Event | Date | Location |
|---------------------|------------------|---------------------|------------------|
| Alpha | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
| Bravo | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
| Charlie | 3 | 12 | USA |
|---------------------|------------------|---------------------|------------------|
While redesigning the database, I have considered using an array with a GIN index instead of the current B-Tree index on receiver. My proposed new table would look like this:
|-------------------------------|--------------|------------|-------------------|
| Receivers | Event | Date | Location |
|-------------------------------|--------------|------------|-------------------|
| ["Alpha", "Bravo", "Charlie"] | 3 | 12 | USA |
|-------------------------------|--------------|------------|-------------------|
More Information:
- Receiver names are of the type (a-z, 1-5, .)
- 95% of all queries currently look like this:
SELECT * FROM table WHERE Receiver = Alpha, with the new format this would beSELECT * FROM table WHERE receivers @> '"Alpha"'::jsonb;
- The table currently contains over 4 billion rows (with duplication) and the new proposed schema would cut it down to under 2 billion rows.
Question:
- Does it make more sense to use Postgres Native Text Array?
- Would a
jsonb_path_opsGIN index on receivers make sense here? - Which option is more efficient? Which is faster?
postgresql database-design index postgresql-performance postgresql-11
postgresql database-design index postgresql-performance postgresql-11
asked 1 hour ago
Syed JafriSyed Jafri
11
New contributor
Syed Jafri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
Syed JafriSyed Jafri
11
New contributor
Syed Jafri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 5 mins ago
Syed Jafri
asked 1 hour ago
Syed JafriSyed Jafri
11
New contributor
Syed Jafri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
Syed JafriSyed Jafri
11
asked 1 hour ago
Syed JafriSyed Jafri
11
11
New contributor
Syed Jafri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Syed Jafri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Syed Jafri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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