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https://github.com/ClickHouse/ClickHouse.git
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42 lines
1.3 KiB
Bash
42 lines
1.3 KiB
Bash
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#!/usr/bin/env bash
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CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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. $CURDIR/../shell_config.sh
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. $CURDIR/mergetree_mutations.lib
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${CLICKHOUSE_CLIENT} --query="DROP TABLE IF EXISTS table_with_empty_part"
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${CLICKHOUSE_CLIENT} --query="CREATE TABLE table_with_empty_part
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(
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id UInt64,
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value UInt64
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)
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ENGINE = MergeTree()
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ORDER BY id
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PARTITION BY id
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SETTINGS vertical_merge_algorithm_min_rows_to_activate=0, vertical_merge_algorithm_min_columns_to_activate=0
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"
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${CLICKHOUSE_CLIENT} --query="INSERT INTO table_with_empty_part VALUES (1, 1)"
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${CLICKHOUSE_CLIENT} --query="INSERT INTO table_with_empty_part VALUES (2, 2)"
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${CLICKHOUSE_CLIENT} --query="ALTER TABLE table_with_empty_part DELETE WHERE id % 2 == 0"
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mutation_id=`${CLICKHOUSE_CLIENT} --query="SELECT mutation_id FROM system.mutations WHERE table='table_with_empty_part' LIMIT 1"`
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wait_for_mutation "table_with_empty_part" "$mutation_id"
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${CLICKHOUSE_CLIENT} --query="SELECT COUNT(DISTINCT value) FROM table_with_empty_part"
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${CLICKHOUSE_CLIENT} --query="ALTER TABLE table_with_empty_part MODIFY COLUMN value Nullable(UInt64)"
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${CLICKHOUSE_CLIENT} --query="SELECT COUNT(distinct value) FROM table_with_empty_part"
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${CLICKHOUSE_CLIENT} --query="OPTIMIZE TABLE table_with_empty_part FINAL"
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${CLICKHOUSE_CLIENT} --query="DROP TABLE IF EXISTS table_with_empty_part"
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