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Brian C 2013-11-08 00:39:13 -06:00
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@ -10,8 +10,7 @@ This means you can take your favorite CSV or TSV or whatever format file and pip
You can also take a table and pipe it directly to a file, another database, stdout, even to `/dev/null` if you're crazy! You can also take a table and pipe it directly to a file, another database, stdout, even to `/dev/null` if you're crazy!
What this module gives you is a [Readable](http://nodejs.org/api/stream.html#stream_class_stream_readable) or [Writable](http://nodejs.org/api/stream.html#stream_class_stream_writable) stream directly into/out of a table in your database. What this module gives you is a [Readable](http://nodejs.org/api/stream.html#stream_class_stream_readable) or [Writable](http://nodejs.org/api/stream.html#stream_class_stream_writable) stream directly into/out of a table in your database.
This mode of interfacing with your table is _very fast_ and _very brittle_. You are responsible for properly encoding and ordering all your columns. If anything is out of place PostgreSQL will send you back an error. This mode of interfacing with your table is _very fast_ and _very brittle_. You are responsible for properly encoding and ordering all your columns. If anything is out of place PostgreSQL will send you back an error. The stream works within a transaction so you wont leave things in a 1/2 borked state, but it's still good to be aware of.
The stream works within a transaction so you wont leave things in a 1/2 borked state, but it's still good to be aware of.
If you're not familiar with the feature (I wasn't either) you can read this for some good helps: http://www.postgresql.org/docs/9.3/static/sql-copy.html If you're not familiar with the feature (I wasn't either) you can read this for some good helps: http://www.postgresql.org/docs/9.3/static/sql-copy.html