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42 lines
1.0 KiB
SQL
42 lines
1.0 KiB
SQL
SET allow_experimental_analyzer=1;
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SELECT *, ngramMinHash(*) AS minhash, mortonEncode(untuple(ngramMinHash(*))) AS z
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FROM (SELECT toString(number) FROM numbers(10))
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ORDER BY z LIMIT 100;
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CREATE TABLE test (
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idx UInt64,
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coverage Array(UInt64),
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test_name String
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)
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ENGINE = MergeTree
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ORDER BY tuple();
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INSERT INTO test VALUES (10, [0,1,2,3], 'xx'), (20, [3,4,5,6], 'xxx'), (90, [3,4,5,6,9], 'xxxx');
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WITH
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4096 AS w, 4096 AS h, w * h AS pixels,
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arrayJoin(coverage) AS num,
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num DIV (32768 * 32768 DIV pixels) AS idx,
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mortonDecode(2, idx) AS coord,
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255 AS b,
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least(255, uniq(test_name)) AS r,
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255 * uniq(test_name) / (max(uniq(test_name)) OVER ()) AS g
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SELECT r::UInt8, g::UInt8, b::UInt8
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FROM test
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GROUP BY coord
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ORDER BY coord.2 * w + coord.1
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WITH FILL FROM 0 TO 10;
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CREATE TABLE seq (
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number UInt64
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)
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ENGINE = MergeTree
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ORDER BY tuple();
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INSERT INTO seq VALUES (0), (6), (7);
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WITH (Select min(number), max(number) from seq) as range Select * from numbers(range.1, range.2);
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