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53 lines
1.6 KiB
Bash
53 lines
1.6 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-03-12 16:50:46 +0000 (Thu, 12 Mar 2020)
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#
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# https://github.com/harisekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/harisekhon
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#
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# Run SQL query against all PostgreSQL tables in all databases via psql.sh
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#
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# Query can contain {db}, {schema} and {table} placeholders which will be replaced for each table
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#
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# FILTER environment variable will restrict to matching fully qualified tables (<db>.<schema>.<table>)
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#
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# Auto-skips information_schema and pg_catalog schemas for safety
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#
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# Tested on AWS RDS PostgreSQL 9.5.15
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set -eu # -o pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(dirname "$0")"
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if [ $# -lt 1 ]; then
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echo "usage: ${0##*/} <query> [psql_options]"
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exit 3
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fi
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query_template="$1"
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shift
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# exit the loop subshell if you Control-C
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trap 'exit 130' INT
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AUTOFILTER=1 "$srcdir/postgres_list_tables.sh" "$@" |
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while read -r db schema table; do
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printf '%s.%s.%s\t' "$db" "$schema" "$table"
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query="${query_template//\{db\}/\"$db\"}"
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query="${query//\{schema\}/\"$schema\"}"
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query="${query//\{table\}/\"$table\"}"
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# doing \c $db is noisy
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"$srcdir/psql.sh" -q -t -d "$db" -c "$query" "$@"
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# weird situation on RDS PostgreSQL, hanging all night trying to select count(*) a table, happens on many tables, skip them like so and carry on
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#timeout -k 10 60 "$srcdir/psql.sh" -q -t -d "$db" -c "$query" "$@" || echo
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done |
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sed '/^[[:space:]]*$/d'
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