Ivan FB 161a10ecb0
feat: Postgres partition implementation (#2506)
* postgres: first step to implement partition management
* postgres_driver: use of times.now().toTime().toUnix() instead of Moment.now()
* postgres migrations: set new version to 2
* test_driver_postgres: use of assert instead of require and avoid using times.now()
* postgres_driver: better implementation of the reset method with partitions
* Remove createMessageTable, init, and deleteMessageTable procs
* postgres: ensure we use the version 15.4 in tests
* postgres_driver.nim: enhance debug logs partition addition
* ci.yml: ensure logs are printed without colors
* postgres_driver: starting the loop factory in an asynchronous task
* postgres_driver: log partition name and size when removing a partition
2024-03-06 20:50:22 +01:00

96 lines
2.7 KiB
Nim

{.push raises: [].}
import
std/[tables, strutils, os],
stew/results,
chronicles,
chronos
import
../../../common/databases/common,
../../../../migrations/message_store_postgres/pg_migration_manager,
../postgres_driver
logScope:
topics = "waku archive migration"
const SchemaVersion* = 2 # increase this when there is an update in the database schema
proc breakIntoStatements*(script: string): seq[string] =
## Given a full migration script, that can potentially contain a list
## of SQL statements, this proc splits it into the contained isolated statements
## that should be executed one after the other.
var statements = newSeq[string]()
let lines = script.split('\n')
var simpleStmt: string
var plSqlStatement: string
var insidePlSqlScript = false
for line in lines:
if line.strip().len == 0:
continue
if insidePlSqlScript:
if line.contains("END $$"):
## End of the Pl/SQL script
plSqlStatement &= line
statements.add(plSqlStatement)
plSqlStatement = ""
insidePlSqlScript = false
continue
else:
plSqlStatement &= line & "\n"
if line.contains("DO $$"):
## Beginning of the Pl/SQL script
insidePlSqlScript = true
plSqlStatement &= line & "\n"
if not insidePlSqlScript:
if line.contains(';'):
## End of simple statement
simpleStmt &= line
statements.add(simpleStmt)
simpleStmt = ""
else:
simpleStmt &= line & "\n"
return statements
proc migrate*(driver: PostgresDriver,
targetVersion = SchemaVersion):
Future[DatabaseResult[void]] {.async.} =
debug "starting message store's postgres database migration"
let currentVersion = (await driver.getCurrentVersion()).valueOr:
return err("migrate error could not retrieve current version: " & $error)
if currentVersion == targetVersion:
debug "database schema is up to date",
currentVersion=currentVersion, targetVersion=targetVersion
return ok()
info "database schema is outdated", currentVersion=currentVersion, targetVersion=targetVersion
# Load migration scripts
let scripts = pg_migration_manager.getMigrationScripts(currentVersion, targetVersion)
# Run the migration scripts
for script in scripts:
for statement in script.breakIntoStatements():
debug "executing migration statement", statement=statement
(await driver.performWriteQuery(statement)).isOkOr:
error "failed to execute migration statement", statement=statement, error=error
return err("failed to execute migration statement")
debug "migration statement executed succesfully", statement=statement
debug "finished message store's postgres database migration"
return ok()