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dump all clickhouse databases and tables
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| #!/bin/bash | |
| #should set command alias | |
| #alias cclient="clickhouse-client -u {default or user} --password '{well-escaped-password}' " | |
| 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 | |
| cclient -q "SHOW CREATE TABLE ${db}.${table}" > "${OUTDIR}/${db}_${table}_schema.sql" | |
| # dump | |
| cclient -q "SELECT * FROM ${db}.${table} FORMAT TabSeparated" | gzip > "${OUTDIR}/${db}_${table}_data.gz" | |
| done < <(cclient -q "SHOW TABLES FROM $db") | |
| done < <(cclient -q "SHOW DATABASES") |
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