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PostgreSQL performance optimization #4457

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Dec 25, 2017
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PostgreSQL performance optimization #4457

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6 changes: 4 additions & 2 deletions src/Adapters/Storage/Postgres/PostgresStorageAdapter.js
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Original file line number Diff line number Diff line change
Expand Up @@ -802,7 +802,8 @@ export class PostgresStorageAdapter {
return list.concat(joinTablesForSchema(schema.schema));
}, []);
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 => {
if (error.code === PostgresRelationDoesNotExistError) {
// No _SCHEMA collection. Don't delete anything.
Expand Down Expand Up @@ -1598,7 +1599,8 @@ export class PostgresStorageAdapter {
}

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) {
Expand Down