PostgreSQL

PostgreSQL is an excellent general-purpose SQL database.

Example locators

dbcrossbar supports standard PostgreSQL locators followed by #table_name:

• postgres://postgres:$PASSWORD@127.0.0.1:5432/postgres#my_table

Note that PostgreSQL sources will currently output all data as a single stream. This can be split into multiple streams using the --stream-size option if desired.

Configuration & authentication

Authentication is currently handled using standard postgres://user:pass@... syntax, similar to psql. We may add alternative mechanisms at some point to avoid passing credentials on the command-line.

Supported features

postgres features:
- conv FROM
- count
  --where=$SQL_EXPR
- cp FROM:
  --where=$SQL_EXPR
- cp TO:
  --if-exists=error --if-exists=append --if-exists=overwrite --if-exists=upsert-on:col