mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-24 08:32:02 +00:00
84 lines
3.1 KiB
Bash
Executable File
84 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
|
|
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
|
|
. "$CURDIR"/../shell_config.sh
|
|
|
|
WORKING_FOLDER_01528="${CLICKHOUSE_TMP}/01528_clickhouse_local_prepare_parts"
|
|
rm -rf "${WORKING_FOLDER_01528}"
|
|
|
|
mkdir -p "${WORKING_FOLDER_01528}/metadata/local"
|
|
|
|
## Checks scenario of preparing parts offline by clickhouse-local
|
|
|
|
## that is the metadata for the table we want to fill
|
|
## schema should match the schema of the table from server
|
|
## (the easiest way is just to copy it from the server)
|
|
cat <<EOF > "${WORKING_FOLDER_01528}/metadata/local/test.sql"
|
|
ATTACH TABLE local.test (id UInt64, d Date, s String) Engine=MergeTree ORDER BY id PARTITION BY toYYYYMM(d);
|
|
EOF
|
|
|
|
#################
|
|
|
|
echo "Option 1. Prepare parts from from table with Engine=File defined in metadata, read from an arbitrary path"
|
|
|
|
## Source file:
|
|
cat <<EOF > "${WORKING_FOLDER_01528}/data.csv"
|
|
1,2020-01-01,"String"
|
|
2,2020-02-02,"Another string"
|
|
3,2020-03-03,"One more string"
|
|
4,2020-01-02,"String for first partition"
|
|
EOF
|
|
|
|
## metadata written into file
|
|
cat <<EOF > "${WORKING_FOLDER_01528}/metadata/local/data_csv.sql"
|
|
ATTACH TABLE local.data_csv (id UInt64, d Date, s String) Engine=File(CSV, '${WORKING_FOLDER_01528}/data.csv');
|
|
EOF
|
|
|
|
## feed the table
|
|
${CLICKHOUSE_LOCAL} --query "INSERT INTO local.test SELECT * FROM local.data_csv;" -- --path="${WORKING_FOLDER_01528}"
|
|
|
|
## check the parts were created
|
|
${CLICKHOUSE_LOCAL} --query "SELECT * FROM local.test WHERE id < 10 ORDER BY id;" -- --path="${WORKING_FOLDER_01528}"
|
|
|
|
#################
|
|
|
|
echo "Option 2. Prepare parts from from table with Engine=File defined in metadata, read from stdin (pipe)"
|
|
|
|
cat <<EOF > "${WORKING_FOLDER_01528}/metadata/local/stdin.sql"
|
|
ATTACH TABLE local.stdin (id UInt64, d Date, s String) Engine=File(CSV, stdin);
|
|
EOF
|
|
|
|
cat <<EOF | ${CLICKHOUSE_LOCAL} --query "INSERT INTO local.test SELECT * FROM local.stdin;" -- --path="${WORKING_FOLDER_01528}"
|
|
11,2020-01-01,"String"
|
|
12,2020-02-02,"Another string"
|
|
13,2020-03-03,"One more string"
|
|
14,2020-01-02,"String for first partition"
|
|
EOF
|
|
|
|
${CLICKHOUSE_LOCAL} --query "SELECT * FROM local.test WHERE id BETWEEN 10 AND 19 ORDER BY id;" -- --path="${WORKING_FOLDER_01528}"
|
|
|
|
#################
|
|
|
|
echo "Option 3. Prepare parts from from table with Engine=File defined via command line, read from stdin (pipe)"
|
|
|
|
cat <<EOF | ${CLICKHOUSE_LOCAL} --query "INSERT INTO local.test SELECT * FROM table;" -S "id UInt64, d Date, s String" --input-format=CSV -- --path="${WORKING_FOLDER_01528}"
|
|
21,2020-01-01,"String"
|
|
22,2020-02-02,"Another string"
|
|
23,2020-03-03,"One more string"
|
|
24,2020-01-02,"String for first partition"
|
|
EOF
|
|
|
|
${CLICKHOUSE_LOCAL} --query "SELECT * FROM local.test WHERE id BETWEEN 20 AND 29 ORDER BY id;" -- --path="${WORKING_FOLDER_01528}"
|
|
|
|
#################
|
|
|
|
echo "Possibility to run optimize on prepared parts before sending parts to server"
|
|
|
|
${CLICKHOUSE_LOCAL} --query "OPTIMIZE TABLE local.test FINAL;" -- --path="${WORKING_FOLDER_01528}"
|
|
|
|
# ensure we have one part per partition
|
|
${CLICKHOUSE_LOCAL} --query "SELECT toYYYYMM(d) m, uniqExact(_part) FROM local.test GROUP BY m ORDER BY m" -- --path="${WORKING_FOLDER_01528}"
|
|
|
|
# cleanup
|
|
rm -rf "${WORKING_FOLDER_01528}"
|