question

Hello,

I recently downloaded postgres 9.4 and I have a client application that
runs in Tcl that inserts to the db and fetches records.

For the majority of the time, the app will connect to the server to do
insert/fetch.

For occasional use, we want to remove the requirement to have a server db
and just have the application retrieve data from a local file.

I know I can use pg_dump to export the tables. The questions are:

1) is there an in-memory db instance or file based I can create that is
loaded with the dump file? This way the app code doesn't have to change.

2) does pg support embedded db?
3) Or is my best option to convert the dump to sqlite and the import the
sqlite and have the app read that embedded db.

Finally, I am noticing pg_dump takes a lot of time to create a dump of my
table. right now, the table has 77K rows. Are there any ways to create
automated batch files to create dumps overnight and do so quickly?

Thanks for your inputs!