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@popravich
popravich / PostgreSQL_index_naming.rst
Last active October 26, 2025 16:30
PostgreSQL index naming convention to remember

The standard names for indexes in PostgreSQL are:

{tablename}_{columnname(s)}_{suffix}

where the suffix is one of the following:

  • pkey for a Primary Key constraint;
  • key for a Unique constraint;
  • excl for an Exclusion constraint;
  • idx for any other kind of index;
@jpouellet
jpouellet / zbell.sh
Last active October 21, 2025 14:13
Makes Zsh print a bell when long-running commands finish. I use this in combination with i3 and throw big compile jobs (or whatever it may be) into another workspace to get a nice visual notification (workspace indicator turns red) when it's done so I don't need to waste time regularly checking on it.
#!/usr/bin/env zsh
# This script prints a bell character when a command finishes
# if it has been running for longer than $zbell_duration seconds.
# If there are programs that you know run long that you don't
# want to bell after, then add them to $zbell_ignore.
#
# This script uses only zsh builtins so its fast, there's no needless
# forking, and its only dependency is zsh and its standard modules
#
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active October 29, 2025 19:10
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'