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28 lines
1.2 KiB
SQL
28 lines
1.2 KiB
SQL
-- Tags: no-s3-storage
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-- We allocate a lot of memory for buffers when reading or writing to S3
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DROP TABLE IF EXISTS 02725_memory_for_merges SYNC;
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CREATE TABLE 02725_memory_for_merges
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( n UInt64,
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s String
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)
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ENGINE = MergeTree
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ORDER BY n
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SETTINGS merge_max_block_size_bytes=1024, index_granularity_bytes=1024;
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INSERT INTO 02725_memory_for_merges SELECT number, randomPrintableASCII(1000000) FROM numbers(100);
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INSERT INTO 02725_memory_for_merges SELECT number, randomPrintableASCII(1000000) FROM numbers(100);
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INSERT INTO 02725_memory_for_merges SELECT number, randomPrintableASCII(1000000) FROM numbers(100);
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INSERT INTO 02725_memory_for_merges SELECT number, randomPrintableASCII(1000000) FROM numbers(100);
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INSERT INTO 02725_memory_for_merges SELECT number, randomPrintableASCII(1000000) FROM numbers(100);
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OPTIMIZE TABLE 02725_memory_for_merges FINAL;
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SYSTEM FLUSH LOGS;
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WITH (SELECT uuid FROM system.tables WHERE table='02725_memory_for_merges' and database=currentDatabase()) as uuid
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SELECT (sum(peak_memory_usage) < 1024 * 1024 * 200 AS x) ? x : sum(peak_memory_usage) from system.part_log where table_uuid=uuid and event_type='MergeParts';
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DROP TABLE IF EXISTS 02725_memory_for_merges SYNC;
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