Watch last lines of a PostgreSQL table like in a "tail -f".
( inspired by mysqltail )
brew install aaparmeggiani/tap/pg_tail(requires PostgreSQL, pg_config, libpq)
git clone https://github.com/aaparmeggiani/pg_tail.git
cd pg_tail
make
make install% pg_tail [OPTIONS] -t TABLE -c uKEY[,COL1,..,COLn]
Options:
-d, --dbname=DBNAME database to connect to
-h, --host=HOSTNAME database server host or socket directory
-p, --port=PORT database server port number
-U, --username=NAME connect as specified database user
-W, --password prompts for the user password
-t, --table=TABLE table to watch
-c, --columns=COL1..COLn columns to watch, the first one must be an ordered primary key (sequence)
-i, --interval=SECONDS database polling interval in seconds (default: 10)
-s, --separator=CHAR sets a column delimiter (an no column alignment)
-n NUM number of lines in the first polling (default: 5)
-j, --json output as json
-v, --version version infoOptions can also be passed through the following PG / PGTAIL env variables:
PGDATABASE, PGHOST, PGPORT, PGUSER
PGTAILTABLE, PGTAILKEY, PGTAILCOLUMNS, PGTAILSEPARATOR, PGTAILINTERVAL, PGTAILLINES, PGTAILALIGN, PGTAILJSON
% pg_tail -d database -t users -c id,login,email
id | login | email |
1 | system | system@example.com |
2 | global | global@example.com |
3 | teller | teller@example.com |
docker run -it --init --rm aaparmeggiani/pg_tail --help
(don't forget --init or you might find yourself trapped without ctrl-c =)
MIT