mirror of
https://github.com/GreptimeTeam/greptimedb.git
synced 2026-10-29 23:16:57 +00:00
Yingwen
3e2751d71d
* feat: improve SQL analyze scan diagnostics Signed-off-by: evenyag <realevenyag@gmail.com> * test: redact dynamic filters in sqlness results Signed-off-by: evenyag <realevenyag@gmail.com> * test: stabilize analyze snapshots for merge queue Signed-off-by: evenyag <realevenyag@gmail.com> * test: remove obsolete scan_details assertion Signed-off-by: evenyag <realevenyag@gmail.com> * test: refresh explain snapshots after partition filter changes Signed-off-by: evenyag <realevenyag@gmail.com> --------- Signed-off-by: evenyag <realevenyag@gmail.com>
200 lines
7.0 KiB
Plaintext
200 lines
7.0 KiB
Plaintext
create table demo(ts timestamp time index, `value` double, host string,idc string, collector string, primary key(host, idc, collector));
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Affected Rows: 0
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insert into demo values(1,2,'test1', 'idc1', 'disk') ,(2,3,'test2', 'idc1', 'disk'), (3,4,'test3', 'idc2','memory');
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Affected Rows: 3
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select * from demo where host='test1';
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+-------------------------+-------+-------+------+-----------+
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| ts | value | host | idc | collector |
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+-------------------------+-------+-------+------+-----------+
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| 1970-01-01T00:00:00.001 | 2.0 | test1 | idc1 | disk |
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+-------------------------+-------+-------+------+-----------+
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select * from demo where host='test2';
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+-------------------------+-------+-------+------+-----------+
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| ts | value | host | idc | collector |
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+-------------------------+-------+-------+------+-----------+
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| 1970-01-01T00:00:00.002 | 3.0 | test2 | idc1 | disk |
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+-------------------------+-------+-------+------+-----------+
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select * from demo where host='test3';
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+-------------------------+-------+-------+------+-----------+
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| ts | value | host | idc | collector |
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+-------------------------+-------+-------+------+-----------+
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| 1970-01-01T00:00:00.003 | 4.0 | test3 | idc2 | memory |
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+-------------------------+-------+-------+------+-----------+
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select * from demo where host='test2' and idc='idc1';
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+-------------------------+-------+-------+------+-----------+
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| ts | value | host | idc | collector |
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+-------------------------+-------+-------+------+-----------+
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| 1970-01-01T00:00:00.002 | 3.0 | test2 | idc1 | disk |
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+-------------------------+-------+-------+------+-----------+
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select * from demo where host='test2' and idc='idc1' and collector='disk';
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+-------------------------+-------+-------+------+-----------+
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| ts | value | host | idc | collector |
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+-------------------------+-------+-------+------+-----------+
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| 1970-01-01T00:00:00.002 | 3.0 | test2 | idc1 | disk |
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+-------------------------+-------+-------+------+-----------+
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select * from demo where host='test2' and idc='idc2';
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+----+-------+------+-----+-----------+
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| ts | value | host | idc | collector |
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+----+-------+------+-----+-----------+
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+----+-------+------+-----+-----------+
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select * from demo where host='test3' and idc>'idc1';
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+-------------------------+-------+-------+------+-----------+
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| ts | value | host | idc | collector |
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+-------------------------+-------+-------+------+-----------+
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| 1970-01-01T00:00:00.003 | 4.0 | test3 | idc2 | memory |
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+-------------------------+-------+-------+------+-----------+
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select * from demo where idc='idc1' order by ts;
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+-------------------------+-------+-------+------+-----------+
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| ts | value | host | idc | collector |
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+-------------------------+-------+-------+------+-----------+
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| 1970-01-01T00:00:00.001 | 2.0 | test1 | idc1 | disk |
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| 1970-01-01T00:00:00.002 | 3.0 | test2 | idc1 | disk |
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+-------------------------+-------+-------+------+-----------+
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select * from demo where collector='disk' order by ts;
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+-------------------------+-------+-------+------+-----------+
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| ts | value | host | idc | collector |
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+-------------------------+-------+-------+------+-----------+
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| 1970-01-01T00:00:00.001 | 2.0 | test1 | idc1 | disk |
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| 1970-01-01T00:00:00.002 | 3.0 | test2 | idc1 | disk |
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+-------------------------+-------+-------+------+-----------+
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-- SQLNESS REPLACE (-+) -
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-- SQLNESS REPLACE (\s\s+) _
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-- SQLNESS REPLACE (peers.*) REDACTED
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-- SQLNESS REPLACE (metrics.*) REDACTED
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-- SQLNESS REPLACE region=\d+\(\d+,\s+\d+\) region=REDACTED
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-- SQLNESS REPLACE \\?"(dyn_filters|time_range|file_summary|max_part_range)\\?":.* "$1":REDACTED
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explain analyze select * from demo where idc='idc1';
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+-+-+-+
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| stage | node | plan_|
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+-+-+-+
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| 0_| 0_|_CooperativeExec REDACTED
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|_|_|_MergeScanExec: REDACTED
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|_|_|_|
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| 1_| 0_|_CooperativeExec REDACTED
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|_|_|_SeqScan: region=REDACTED, "partition_count":{"count":1, "mem_ranges":1, "files":0, "file_ranges":0}, "projection": ["ts", "value", "host", "idc", "collector"], "filters": ["idc = Dictionary(UInt32, Utf8(\"idc1\"))"], "time_range":REDACTED
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|_|_|_|
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|_|_| Total rows: 2_|
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+-+-+-+
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SELECT * FROM demo where host in ('test1');
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+-------------------------+-------+-------+------+-----------+
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| ts | value | host | idc | collector |
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+-------------------------+-------+-------+------+-----------+
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| 1970-01-01T00:00:00.001 | 2.0 | test1 | idc1 | disk |
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+-------------------------+-------+-------+------+-----------+
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-- SQLNESS REPLACE (metrics.*) REDACTED
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-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
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-- SQLNESS REPLACE (-+) -
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-- SQLNESS REPLACE (\s\s+) _
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-- SQLNESS REPLACE (peers.*) REDACTED
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-- SQLNESS REPLACE region=\d+\(\d+,\s+\d+\) region=REDACTED
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-- SQLNESS REPLACE \\?"(dyn_filters|time_range|file_summary|max_part_range)\\?":.* "$1":REDACTED
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explain analyze SELECT * FROM demo where host in ('test1');
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+-+-+-+
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| stage | node | plan_|
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+-+-+-+
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| 0_| 0_|_CooperativeExec REDACTED
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|_|_|_MergeScanExec: REDACTED
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| 1_| 0_|_CooperativeExec REDACTED
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|_|_|_SeqScan: region=REDACTED, "partition_count":{"count":1, "mem_ranges":1, "files":0, "file_ranges":0}, "projection": ["ts", "value", "host", "idc", "collector"], "filters": ["host = Dictionary(UInt32, Utf8(\"test1\"))"], "time_range":REDACTED
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|_|_| Total rows: 1_|
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+-+-+-+
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drop table demo;
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Affected Rows: 0
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CREATE TABLE test_time_filter(
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host STRING,
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greptime_timestamp TIMESTAMP,
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TIME INDEX(greptime_timestamp)
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)
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WITH
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(
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'append_mode' = 'true',
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'sst_format' = 'flat'
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);
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Affected Rows: 0
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INSERT INTO test_time_filter(host, greptime_timestamp) VALUES ('hello', '2026-01-07T00:00:00'), ('world', '2026-01-07T00:00:01'), ('test', '2026-01-07T00:00:00'), ('go', '2026-01-07T00:00:01');
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Affected Rows: 4
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SELECT host FROM test_time_filter WHERE greptime_timestamp > '2026-01-07 00:00:00';
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+-------+
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| host |
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+-------+
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| go |
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| world |
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+-------+
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SELECT host, greptime_timestamp FROM test_time_filter WHERE greptime_timestamp > '2026-01-07 00:00:00';
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+-------+---------------------+
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| host | greptime_timestamp |
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+-------+---------------------+
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| go | 2026-01-07T00:00:01 |
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| world | 2026-01-07T00:00:01 |
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+-------+---------------------+
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ADMIN flush_table('test_time_filter');
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+---------------------------------------+
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| ADMIN flush_table('test_time_filter') |
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+---------------------------------------+
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| 0 |
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+---------------------------------------+
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SELECT host FROM test_time_filter WHERE greptime_timestamp > '2026-01-07 00:00:00';
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+-------+
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| host |
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+-------+
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| go |
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| world |
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+-------+
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SELECT host, greptime_timestamp FROM test_time_filter WHERE greptime_timestamp > '2026-01-07 00:00:00';
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+-------+---------------------+
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| host | greptime_timestamp |
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+-------+---------------------+
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| go | 2026-01-07T00:00:01 |
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| world | 2026-01-07T00:00:01 |
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+-------+---------------------+
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DROP TABLE test_time_filter;
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Affected Rows: 0
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