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dump all clickhouse databases and tables
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#!/bin/bash | |
OUTDIR=. | |
while read -r db ; do | |
while read -r table ; do | |
if [ "$db" == "system" ]; then | |
echo "skip system db" | |
continue 2; | |
fi | |
if [[ "$table" == ".inner."* ]]; then | |
echo "skip materialized view $table ($db)" | |
continue; | |
fi | |
echo "export table $table from database $db" | |
# dump schema | |
clickhouse-client -q "SHOW CREATE TABLE ${db}.${table}" > "${OUTDIR}/${db}_${table}_schema.sql" | |
# dump | |
clickhouse-client -q "SELECT * FROM ${db}.${table} FORMAT TabSeparated" | pigz > "${OUTDIR}/${db}_${table}_data.tsv.gz" | |
done < <(clickhouse-client -q "SHOW TABLES FROM $db") | |
done < <(clickhouse-client -q "SHOW DATABASES") |
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