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Make doesTableExist check for table in current search path #33

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Make doesTableExist check for table in current search path #33

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15 changes: 7 additions & 8 deletions src/migrate.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -188,14 +188,13 @@ function logResult(completedMigrations: Array<Migration>, log: Logger) {
}
}

/** Check whether table exists in postgres - http://stackoverflow.com/a/24089729 */
/** Check whether table exists in postgres in the current search path
* http://stackoverflow.com/a/24089729
* https://dba.stackexchange.com/a/86098
*/
async function doesTableExist(client: BasicPgClient, tableName: string) {
const result = await client.query(SQL`SELECT EXISTS (
SELECT 1
FROM pg_catalog.pg_class c
WHERE c.relname = ${tableName}
AND c.relkind = 'r'
);`)

const result = await client.query(
SQL`SELECT to_regclass(${tableName}) is not NULL as exists;`,
)
return result.rows.length > 0 && result.rows[0].exists
}