mirror of
https://github.com/GreptimeTeam/greptimedb.git
synced 2026-01-04 20:32:56 +00:00
142 lines
3.4 KiB
SQL
142 lines
3.4 KiB
SQL
-- should not able to create information_schema
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create database information_schema;
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-- scripts table has different table ids in different modes
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-- SQLNESS REPLACE (\s[\-0-9T:\.]{15,}) DATETIME
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-- SQLNESS REPLACE [\u0020\-]+
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select *
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from information_schema.tables
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where table_name != 'scripts'
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order by table_schema, table_name;
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select * from information_schema.columns order by table_schema, table_name, column_name;
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select table_schema, table_name from information_schema.tables order by table_name limit 5;
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select table_schema, table_name from information_schema.tables order by table_name limit 5 offset 0;
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create
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database my_db;
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use information_schema;
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use my_db;
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create table foo
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(
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ts TIMESTAMP TIME INDEX
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);
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select table_name
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from information_schema.tables
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where table_schema = 'my_db'
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order by table_name;
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SELECT table_name
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FROM information_schema.tables
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WHERE table_schema = 'my_db'
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AND create_time > NOW() - INTERVAL 1 MINUTE;
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select table_name
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from information_schema.tables
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where table_schema in ('my_db', 'public')
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order by table_name;
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select table_name
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from information_schema.tables
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where table_schema like 'my%'
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order by table_name;
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select table_name
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from information_schema.tables
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where table_schema not in ('my_db', 'information_schema', 'pg_catalog')
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order by table_name;
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select table_catalog, table_schema, table_name, table_type, engine
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from information_schema.tables
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where table_catalog = 'greptime'
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and table_schema != 'public'
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and table_schema != 'information_schema'
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and table_schema != 'pg_catalog'
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order by table_schema, table_name;
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select table_catalog, table_schema, table_name, column_name, data_type, semantic_type
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from information_schema.columns
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where table_catalog = 'greptime'
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and table_schema != 'public'
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and table_schema != 'information_schema'
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and table_schema != 'pg_catalog'
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order by table_schema, table_name, column_name;
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-- test query filter for columns --
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select table_catalog, table_schema, table_name, column_name, data_type, semantic_type
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from information_schema.columns
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where table_catalog = 'greptime'
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and (table_schema in ('public')
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or
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table_schema == 'my_db')
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order by table_schema, table_name, column_name;
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use public;
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drop schema my_db;
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use information_schema;
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-- test query filter for key_column_usage --
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select * from KEY_COLUMN_USAGE where CONSTRAINT_NAME = 'TIME INDEX';
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select * from KEY_COLUMN_USAGE where CONSTRAINT_NAME != 'TIME INDEX';
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select * from KEY_COLUMN_USAGE where CONSTRAINT_NAME LIKE '%INDEX';
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select * from KEY_COLUMN_USAGE where CONSTRAINT_NAME NOT LIKE '%INDEX';
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select * from KEY_COLUMN_USAGE where CONSTRAINT_NAME == 'TIME INDEX' AND CONSTRAINT_SCHEMA != 'my_db';
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-- schemata --
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desc table schemata;
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select * from schemata where catalog_name = 'greptime' and schema_name != 'public' order by catalog_name, schema_name;
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-- test engines
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select * from engines;
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desc table build_info;
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select count(*) from build_info;
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desc table key_column_usage;
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select * from key_column_usage;
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-- tables not implemented
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DESC TABLE COLUMN_PRIVILEGES;
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SELECT * FROM COLUMN_PRIVILEGES;
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DESC TABLE COLUMN_STATISTICS;
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SELECT * FROM COLUMN_STATISTICS;
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SELECT * FROM CHARACTER_SETS;
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SELECT * FROM COLLATIONS;
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SELECT * FROM COLLATION_CHARACTER_SET_APPLICABILITY;
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DESC TABLE CHECK_CONSTRAINTS;
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SELECT * FROM CHECK_CONSTRAINTS;
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DESC TABLE REGION_PEERS;
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USE INFORMATION_SCHEMA;
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DESC COLUMNS;
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drop table my_db.foo;
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use public;
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