mirror of
https://github.com/GreptimeTeam/greptimedb.git
synced 2026-01-06 21:32:58 +00:00
198 lines
5.3 KiB
Plaintext
198 lines
5.3 KiB
Plaintext
CREATE TABLE demo(host string, cpu double, memory double, ts TIMESTAMP time index);
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Affected Rows: 0
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CREATE TABLE demo_2(host string, cpu double, memory double, ts TIMESTAMP time index);
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Affected Rows: 0
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insert into
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demo(host, cpu, memory, ts)
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values
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('host1', 66.6, 1024, 1655276557000),
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('host2', 88.8, 333.3, 1655276558000),
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('host3', 111.1, 444.4, 1722077263000);
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Affected Rows: 3
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insert into
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demo_2(host, cpu, memory, ts)
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values
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('host4', 77.7, 1111, 1655276555000),
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('host5', 99.9, 444.4, 1655276556000),
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('host6', 222.2, 555.5, 1722077264000);
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Affected Rows: 3
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Copy demo TO '${SQLNESS_HOME}/demo/export/parquet_files/demo.parquet';
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Affected Rows: 3
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Copy demo_2 TO '${SQLNESS_HOME}/demo/export/parquet_files/demo_2.parquet';
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Affected Rows: 3
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CREATE TABLE with_filename(host string, cpu double, memory double, ts timestamp time index);
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Affected Rows: 0
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Copy with_filename FROM '${SQLNESS_HOME}/demo/export/parquet_files/demo.parquet' with (start_time='2022-06-15 07:02:37', end_time='2022-06-15 07:02:39');
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Affected Rows: 2
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select * from with_filename order by ts;
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+-------+------+--------+---------------------+
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| host | cpu | memory | ts |
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+-------+------+--------+---------------------+
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| host1 | 66.6 | 1024.0 | 2022-06-15T07:02:37 |
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| host2 | 88.8 | 333.3 | 2022-06-15T07:02:38 |
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+-------+------+--------+---------------------+
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CREATE TABLE with_path(host string, cpu double, memory double, ts timestamp time index);
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Affected Rows: 0
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Copy with_path FROM '${SQLNESS_HOME}/demo/export/parquet_files/';
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Affected Rows: 6
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select * from with_path order by ts;
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+-------+-------+--------+---------------------+
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| host | cpu | memory | ts |
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+-------+-------+--------+---------------------+
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| host4 | 77.7 | 1111.0 | 2022-06-15T07:02:35 |
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| host5 | 99.9 | 444.4 | 2022-06-15T07:02:36 |
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| host1 | 66.6 | 1024.0 | 2022-06-15T07:02:37 |
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| host2 | 88.8 | 333.3 | 2022-06-15T07:02:38 |
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| host3 | 111.1 | 444.4 | 2024-07-27T10:47:43 |
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| host6 | 222.2 | 555.5 | 2024-07-27T10:47:44 |
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+-------+-------+--------+---------------------+
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CREATE TABLE with_pattern(host string, cpu double, memory double, ts timestamp time index);
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Affected Rows: 0
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Copy with_pattern FROM '${SQLNESS_HOME}/demo/export/parquet_files/' WITH (PATTERN = 'demo.*', start_time='2022-06-15 07:02:39');
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Affected Rows: 2
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select * from with_pattern order by ts;
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+-------+-------+--------+---------------------+
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| host | cpu | memory | ts |
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+-------+-------+--------+---------------------+
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| host3 | 111.1 | 444.4 | 2024-07-27T10:47:43 |
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| host6 | 222.2 | 555.5 | 2024-07-27T10:47:44 |
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+-------+-------+--------+---------------------+
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CREATE TABLE without_limit_rows(host string, cpu double, memory double, ts timestamp time index);
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Affected Rows: 0
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Copy without_limit_rows FROM '${SQLNESS_HOME}/demo/export/parquet_files/';
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Affected Rows: 6
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select count(*) from without_limit_rows;
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+----------+
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| count(*) |
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+----------+
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| 6 |
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+----------+
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CREATE TABLE with_limit_rows_segment(host string, cpu double, memory double, ts timestamp time index);
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Affected Rows: 0
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Copy with_limit_rows_segment FROM '${SQLNESS_HOME}/demo/export/parquet_files/' LIMIT 3;
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Affected Rows: 3
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select count(*) from with_limit_rows_segment;
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+----------+
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| count(*) |
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+----------+
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| 3 |
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+----------+
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Copy with_limit_rows_segment FROM '${SQLNESS_HOME}/demo/export/parquet_files/' LIMIT hello;
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Error: 2000(InvalidSyntax), Unexpected token while parsing SQL statement, expected: 'the number of maximum rows', found: ;: sql parser error: Expected: literal int, found: hello at Line: 1, Column: 86
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CREATE TABLE demo_with_external_column(host string, cpu double, memory double, ts timestamp time index, external_column string default 'default_value');
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Affected Rows: 0
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Copy demo_with_external_column FROM '${SQLNESS_HOME}/demo/export/parquet_files/demo.parquet';
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Affected Rows: 3
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select * from demo_with_external_column order by ts;
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+-------+-------+--------+---------------------+-----------------+
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| host | cpu | memory | ts | external_column |
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+-------+-------+--------+---------------------+-----------------+
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| host1 | 66.6 | 1024.0 | 2022-06-15T07:02:37 | default_value |
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| host2 | 88.8 | 333.3 | 2022-06-15T07:02:38 | default_value |
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| host3 | 111.1 | 444.4 | 2024-07-27T10:47:43 | default_value |
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+-------+-------+--------+---------------------+-----------------+
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CREATE TABLE demo_with_less_columns(host string, memory double, ts timestamp time index);
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Affected Rows: 0
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Copy demo_with_less_columns FROM '${SQLNESS_HOME}/demo/export/parquet_files/demo.parquet';
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Affected Rows: 3
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select * from demo_with_less_columns order by ts;
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+-------+--------+---------------------+
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| host | memory | ts |
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+-------+--------+---------------------+
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| host1 | 1024.0 | 2022-06-15T07:02:37 |
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| host2 | 333.3 | 2022-06-15T07:02:38 |
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| host3 | 444.4 | 2024-07-27T10:47:43 |
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+-------+--------+---------------------+
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drop table demo;
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Affected Rows: 0
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drop table demo_2;
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Affected Rows: 0
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drop table with_filename;
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Affected Rows: 0
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drop table with_path;
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Affected Rows: 0
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drop table with_pattern;
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Affected Rows: 0
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drop table without_limit_rows;
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Affected Rows: 0
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drop table with_limit_rows_segment;
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Affected Rows: 0
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drop table demo_with_external_column;
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Affected Rows: 0
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drop table demo_with_less_columns;
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Affected Rows: 0
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