mirror of
https://github.com/GreptimeTeam/greptimedb.git
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599f289f59
* feat: add `granularity` and `false_positive_rate` options for indexes Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * address comments Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * upgrade proto Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> --------- Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
129 lines
13 KiB
Plaintext
129 lines
13 KiB
Plaintext
CREATE TABLE IF NOT EXISTS system_metrics (
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host STRING,
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idc STRING FULLTEXT INDEX INVERTED INDEX,
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cpu_util DOUBLE,
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memory_util DOUBLE,
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disk_util DOUBLE,
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desc1 STRING,
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desc2 STRING FULLTEXT INDEX,
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desc3 STRING FULLTEXT INDEX,
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ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY(host, idc),
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TIME INDEX(ts)
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);
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Affected Rows: 0
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CREATE TABLE IF NOT EXISTS test (
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a STRING,
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b STRING SKIPPING INDEX,
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c DOUBLE,
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ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY(a, b),
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TIME INDEX(ts)
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);
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Affected Rows: 0
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CREATE TABLE IF NOT EXISTS test_no_inverted_index (
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a STRING,
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b STRING SKIPPING INDEX,
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c DOUBLE,
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ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY(a, b),
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TIME INDEX(ts)
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);
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Affected Rows: 0
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show create table test_no_inverted_index;
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+------------------------+-------------------------------------------------------------------------------------------------------------+
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| Table | Create Table |
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+------------------------+-------------------------------------------------------------------------------------------------------------+
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| test_no_inverted_index | CREATE TABLE IF NOT EXISTS "test_no_inverted_index" ( |
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| | "a" STRING NULL, |
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| | "b" STRING NULL SKIPPING INDEX WITH(false_positive_rate = '0.01', granularity = '10240', type = 'BLOOM'), |
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| | "c" DOUBLE NULL, |
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| | "ts" TIMESTAMP(3) NOT NULL DEFAULT current_timestamp(), |
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| | TIME INDEX ("ts"), |
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| | PRIMARY KEY ("a", "b") |
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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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SHOW INDEX;
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Error: 2000(InvalidSyntax), Unexpected token while parsing SQL statement, expected: '{FROM | IN} table', found: ;
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SHOW INDEX FROM test;
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+-------+------------+-------------------------+--------------+-------------+-----------+-------------+----------+--------+------+---------------------------------------------------+---------+---------------+---------+------------+
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| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | Visible | Expression |
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+-------+------------+-------------------------+--------------+-------------+-----------+-------------+----------+--------+------+---------------------------------------------------+---------+---------------+---------+------------+
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| test | 1 | PRIMARY | 1 | a | A | | | | YES | greptime-primary-key-v1 | | | YES | |
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| test | 1 | PRIMARY, SKIPPING INDEX | 2 | b | A | | | | YES | greptime-primary-key-v1, greptime-bloom-filter-v1 | | | YES | |
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| test | 1 | TIME INDEX | 1 | ts | A | | | | NO | | | | YES | |
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+-------+------------+-------------------------+--------------+-------------+-----------+-------------+----------+--------+------+---------------------------------------------------+---------+---------------+---------+------------+
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SHOW INDEX FROM test_no_inverted_index;
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+------------------------+------------+-------------------------+--------------+-------------+-----------+-------------+----------+--------+------+---------------------------------------------------+---------+---------------+---------+------------+
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| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | Visible | Expression |
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+------------------------+------------+-------------------------+--------------+-------------+-----------+-------------+----------+--------+------+---------------------------------------------------+---------+---------------+---------+------------+
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| test_no_inverted_index | 1 | PRIMARY | 1 | a | A | | | | YES | greptime-primary-key-v1 | | | YES | |
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| test_no_inverted_index | 1 | PRIMARY, SKIPPING INDEX | 2 | b | A | | | | YES | greptime-primary-key-v1, greptime-bloom-filter-v1 | | | YES | |
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| test_no_inverted_index | 1 | TIME INDEX | 1 | ts | A | | | | NO | | | | YES | |
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+------------------------+------------+-------------------------+--------------+-------------+-----------+-------------+----------+--------+------+---------------------------------------------------+---------+---------------+---------+------------+
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SHOW INDEX FROM system_metrics;
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+----------------+------------+-----------------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------------------------------------------------------------------------------+---------+---------------+---------+------------+
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| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | Visible | Expression |
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+----------------+------------+-----------------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------------------------------------------------------------------------------+---------+---------------+---------+------------+
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| system_metrics | 1 | FULLTEXT INDEX | 7 | desc2 | A | | | | YES | greptime-fulltext-index-bloom | | | YES | |
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| system_metrics | 1 | FULLTEXT INDEX | 8 | desc3 | A | | | | YES | greptime-fulltext-index-bloom | | | YES | |
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| system_metrics | 1 | PRIMARY | 1 | host | A | | | | YES | greptime-primary-key-v1 | | | YES | |
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| system_metrics | 1 | PRIMARY, INVERTED INDEX, FULLTEXT INDEX | 2 | idc | A | | | | YES | greptime-primary-key-v1, greptime-inverted-index-v1, greptime-fulltext-index-bloom | | | YES | |
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| system_metrics | 1 | TIME INDEX | 1 | ts | A | | | | NO | | | | YES | |
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+----------------+------------+-----------------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------------------------------------------------------------------------------+---------+---------------+---------+------------+
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SHOW INDEX FROM system_metrics in public;
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+----------------+------------+-----------------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------------------------------------------------------------------------------+---------+---------------+---------+------------+
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| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | Visible | Expression |
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+----------------+------------+-----------------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------------------------------------------------------------------------------+---------+---------------+---------+------------+
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| system_metrics | 1 | FULLTEXT INDEX | 7 | desc2 | A | | | | YES | greptime-fulltext-index-bloom | | | YES | |
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| system_metrics | 1 | FULLTEXT INDEX | 8 | desc3 | A | | | | YES | greptime-fulltext-index-bloom | | | YES | |
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| system_metrics | 1 | PRIMARY | 1 | host | A | | | | YES | greptime-primary-key-v1 | | | YES | |
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| system_metrics | 1 | PRIMARY, INVERTED INDEX, FULLTEXT INDEX | 2 | idc | A | | | | YES | greptime-primary-key-v1, greptime-inverted-index-v1, greptime-fulltext-index-bloom | | | YES | |
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| system_metrics | 1 | TIME INDEX | 1 | ts | A | | | | NO | | | | YES | |
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+----------------+------------+-----------------------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------------------------------------------------------------------------------+---------+---------------+---------+------------+
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SHOW INDEX FROM system_metrics like '%util%';
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Error: 1001(Unsupported), SQL statement is not supported, keyword: like
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SHOW INDEX FROM system_metrics WHERE Key_name = 'TIME INDEX';
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+----------------+------------+------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+------------+
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| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | Visible | Expression |
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+----------------+------------+------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+------------+
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| system_metrics | 1 | TIME INDEX | 1 | ts | A | | | | NO | | | | YES | |
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+----------------+------------+------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+------------+
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DROP TABLE system_metrics;
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Affected Rows: 0
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DROP TABLE test;
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Affected Rows: 0
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DROP TABLE test_no_inverted_index;
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Affected Rows: 0
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