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DevOps-Bash-tools/mysql_foreach_table.sh

60 lines
1.6 KiB
Bash

#!/usr/bin/env bash
# vim:ts=4:sts=4:sw=4:et
#
# Author: Hari Sekhon
# Date: 2020-03-12 22:54:48 +0000 (Thu, 12 Mar 2020)
#
# https://github.com/HariSekhon/DevOps-Bash-tools
#
# License: see accompanying Hari Sekhon LICENSE file
#
# 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
#
# https://www.linkedin.com/in/HariSekhon
#
set -eu # o pipefail
[ -n "${DEBUG:-}" ] && set -x
srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck disable=SC1090
. "$srcdir/lib/utils.sh"
# shellcheck disable=SC2034,SC2154
usage_description="
Run SQL query against all MySQL tables in all databases via mysql.sh
Query can contain {db} and {table} placeholders which will be replaced for each table
FILTER environment variable will restrict to matching fully qualified tables (<db>.<table>)
Auto-skips information_schema, performance_schema, sys and mysql databases for safety
WARNING: do not run any command reading from standard input, otherwise it will consume the db/table names and exit after the first iteration
Tested on MySQL 8.0.15
"
# used by usage() in lib/utils.sh
# shellcheck disable=SC2034
usage_args="\"<query>\" [<mysql_options>]"
help_usage "$@"
min_args 1 "$@"
query_template="$1"
shift || :
# exit the loop subshell if you Control-C
trap 'exit 130' INT
AUTOFILTER=1 "$srcdir/mysql_list_tables.sh" "$@" |
while read -r db table; do
printf '%s.%s\t' "$db" "$table"
query="${query_template//\{db\}/\`$db\`}"
query="${query//\{table\}/\`$table\`}"
"$srcdir/mysql.sh" -s -D "$db" -e "$query" "$@"
done