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https://github.com/GreptimeTeam/greptimedb.git
synced 2026-10-22 20:02:36 +00:00
dennis zhuang
672e94f61d
* feat: add column encoding option and set it for trace span ids COMPRESSION WITH accepts encoding = 'plain' | 'delta_binary_packed'. Either disables the dictionary for the column; delta_binary_packed is limited to integer and timestamp columns. OTLP trace v1/v2 tables now create span_id and parent_span_id with plain encoding and 64KiB pages, and timestamp_end with delta_binary_packed. Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * test: add compatibility cases for column encoding options Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * test: move column encoding downgrade checks into downgrade_compatibility Signed-off-by: Dennis Zhuang <killme2008@gmail.com> --------- Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
68 lines
3.3 KiB
Plaintext
68 lines
3.3 KiB
Plaintext
SELECT * FROM legacy_spans ORDER BY ts;
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+-------------------------+---------+----------------------------+
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| ts | span_id | ts_end |
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+-------------------------+---------+----------------------------+
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| 1970-01-01T00:00:00.001 | a1 | 1970-01-01T00:00:00.000001 |
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| 1970-01-01T00:00:00.002 | a2 | 1970-01-01T00:00:00.000002 |
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+-------------------------+---------+----------------------------+
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CREATE TABLE encoded_spans (
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ts TIMESTAMP TIME INDEX,
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span_id STRING COMPRESSION WITH (encoding = 'plain', page_size = '64KiB'),
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ts_end TIMESTAMP(9) COMPRESSION WITH (encoding = 'delta_binary_packed')
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);
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Affected Rows: 0
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INSERT INTO encoded_spans SELECT * FROM legacy_spans;
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Affected Rows: 2
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ADMIN FLUSH_TABLE('encoded_spans');
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+------------------------------------+
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| ADMIN FLUSH_TABLE('encoded_spans') |
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+------------------------------------+
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| 0 |
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+------------------------------------+
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-- SQLNESS ARG restart=true
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SHOW CREATE TABLE encoded_spans;
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+---------------+---------------------------------------------------------------------------------------------------+
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| Table | Create Table |
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+---------------+---------------------------------------------------------------------------------------------------+
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| encoded_spans | CREATE TABLE IF NOT EXISTS "encoded_spans" ( |
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| | "ts" TIMESTAMP(3) NOT NULL, |
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| | "span_id" STRING NULL COMPRESSION WITH(encoding = 'plain', page_size = '64KiB', type = 'zstd'), |
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| | "ts_end" TIMESTAMP(9) NULL COMPRESSION WITH(encoding = 'delta_binary_packed', type = 'zstd'), |
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| | TIME INDEX ("ts") |
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| | ) |
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| | |
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| | ENGINE=mito |
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| | |
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+---------------+---------------------------------------------------------------------------------------------------+
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INSERT INTO encoded_spans VALUES (3, 'b3', 3000);
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Affected Rows: 1
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ADMIN FLUSH_TABLE('encoded_spans');
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+------------------------------------+
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| ADMIN FLUSH_TABLE('encoded_spans') |
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+------------------------------------+
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| 0 |
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+------------------------------------+
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SELECT * FROM encoded_spans ORDER BY ts;
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+-------------------------+---------+----------------------------+
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| ts | span_id | ts_end |
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+-------------------------+---------+----------------------------+
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| 1970-01-01T00:00:00.001 | a1 | 1970-01-01T00:00:00.000001 |
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| 1970-01-01T00:00:00.002 | a2 | 1970-01-01T00:00:00.000002 |
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| 1970-01-01T00:00:00.003 | b3 | 1970-01-01T00:00:00.000003 |
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+-------------------------+---------+----------------------------+
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