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PostgreSQL performance optimization (#4457)

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Performance-optimizing transactions to execute all non-result queries as a single operation.
This commit is contained in:
Vitaly Tomilov
2017-12-25 21:08:04 +00:00
committed by GitHub
parent 415ee3a1fd
commit 34453bff46
1 changed files with 4 additions and 2 deletions
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6
src/Adapters/Storage/Postgres/PostgresStorageAdapter.js
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@@ -802,7 +802,8 @@ export class PostgresStorageAdapter {
return list.concat(joinTablesForSchema(schema.schema)); return list.concat(joinTablesForSchema(schema.schema));
}, []); }, []);
const classes = ['_SCHEMA', '_PushStatus', '_JobStatus', '_JobSchedule', '_Hooks', '_GlobalConfig', '_Audience', ...results.map(result => result.className), ...joins]; const classes = ['_SCHEMA', '_PushStatus', '_JobStatus', '_JobSchedule', '_Hooks', '_GlobalConfig', '_Audience', ...results.map(result => result.className), ...joins];
return this._client.tx(t=>t.batch(classes.map(className=>t.none('DROP TABLE IF EXISTS $<className:name>', {className})))); const queries = classes.map(className => ({query: 'DROP TABLE IF EXISTS $<className:name>', values: {className}}));
return this._client.tx(t => t.none(this._pgp.helpers.concat(queries)));
}, error => { }, error => {
if (error.code === PostgresRelationDoesNotExistError) { if (error.code === PostgresRelationDoesNotExistError) {
// No _SCHEMA collection. Don't delete anything. // No _SCHEMA collection. Don't delete anything.
@@ -1598,7 +1599,8 @@ export class PostgresStorageAdapter {
} }
dropIndexes(className, indexes, conn) { dropIndexes(className, indexes, conn) {
return (conn || this._client).tx(t => t.batch(indexes.map(i => t.none('DROP INDEX $1:name', i)))); const queries = indexes.map(i => ({query: 'DROP INDEX $1:name', values: i}));
return (conn || this._client).tx(t => t.none(this._pgp.helpers.concat(queries)));
} }
getIndexes(className) { getIndexes(className) {