mirror of
https://github.com/go-micro/go-micro.git
synced 2025-06-30 22:33:49 +02:00
14 lines
856 B
Markdown
14 lines
856 B
Markdown
|
# Postgres plugin
|
||
|
|
|
||
|
|
This module implements a Postgres implementation of the micro store interface.
|
||
|
|
|
||
|
|
## Implementation notes
|
||
|
|
|
||
|
|
### Concepts
|
||
|
|
We maintain a single connection to the Postgres server. Due to the way connections are handled this means that all micro "databases" and "tables" are stored under a single Postgres database as specified in the connection string (https://www.postgresql.org/docs/8.1/ddl-schemas.html). The mapping of micro to Postgres concepts is:
|
||
|
|
- micro database => Postgres schema
|
||
|
|
- micro table => Postgres table
|
||
|
|
|
||
|
|
### Expiry
|
||
|
|
Expiry is managed by an expiry column in the table. A record's expiry is specified in the column and when a record is read the expiry field is first checked, only returning the record if its still valid otherwise it's deleted. A maintenance loop also periodically runs to delete any rows that have expired.
|