Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

more system schema queries #7685

Merged
merged 2 commits into from
Mar 22, 2021
Merged

more system schema queries #7685

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
026aec1
added more system queries to plan test
harshit-gangal Mar 15, 2021
2e0bffe
added routine_schema as db column name from system schema queries
harshit-gangal Mar 15, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion go/vt/vtgate/planbuilder/system_tables.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,7 @@ func isTableSchemaOrName(e sqlparser.Expr) (isTableSchema bool, isTableName bool
}

func isDbNameCol(col *sqlparser.ColName) bool {
return col.Name.EqualString("table_schema") || col.Name.EqualString("constraint_schema") || col.Name.EqualString("schema_name")
return col.Name.EqualString("table_schema") || col.Name.EqualString("constraint_schema") || col.Name.EqualString("schema_name") || col.Name.EqualString("routine_schema")
}

func isTableNameCol(col *sqlparser.ColName) bool {
Expand Down
74 changes: 74 additions & 0 deletions go/vt/vtgate/planbuilder/testdata/select_cases.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1744,3 +1744,77 @@ Gen4 plan same as above
]
}
}

#information_schema.routines
"SELECT routine_name AS name, routine_definition AS definition FROM information_schema.routines WHERE ROUTINE_SCHEMA = ? AND ROUTINE_TYPE = 'PROCEDURE'"
{
"QueryType": "SELECT",
"Original": "SELECT routine_name AS name, routine_definition AS definition FROM information_schema.routines WHERE ROUTINE_SCHEMA = ? AND ROUTINE_TYPE = 'PROCEDURE'",
"Instructions": {
"OperatorType": "Route",
"Variant": "SelectDBA",
"Keyspace": {
"Name": "main",
"Sharded": false
},
"FieldQuery": "select routine_name as `name`, routine_definition as definition from information_schema.routines where 1 != 1",
"Query": "select routine_name as `name`, routine_definition as definition from information_schema.routines where ROUTINE_SCHEMA = :__vtschemaname and ROUTINE_TYPE = 'PROCEDURE'",
"SysTableTableSchema": ":v1"
}
}

#information_schema table sizes
"SELECT SUM(data_length + index_length) as size FROM information_schema.TABLES WHERE table_schema = ?"
{
"QueryType": "SELECT",
"Original": "SELECT SUM(data_length + index_length) as size FROM information_schema.TABLES WHERE table_schema = ?",
"Instructions": {
"OperatorType": "Route",
"Variant": "SelectDBA",
"Keyspace": {
"Name": "main",
"Sharded": false
},
"FieldQuery": "select SUM(data_length + index_length) as size from information_schema.`TABLES` where 1 != 1",
"Query": "select SUM(data_length + index_length) as size from information_schema.`TABLES` where table_schema = :__vtschemaname",
"SysTableTableSchema": ":v1"
}
}

#information_schema referential contraints
"SELECT kcu.constraint_name constraint_name, kcu.column_name column_name, kcu.referenced_table_name referenced_table_name, kcu.referenced_column_name referenced_column_name, kcu.ordinal_position ordinal_position, kcu.table_name table_name, rc.delete_rule delete_rule, rc.update_rule update_rule FROM information_schema.key_column_usage AS kcu INNER JOIN information_schema.referential_constraints AS rc ON kcu.constraint_name = rc.constraint_name WHERE kcu.table_schema = ? AND rc.constraint_schema = ? AND kcu.referenced_column_name IS NOT NULL ORDER BY ordinal_position"
{
"QueryType": "SELECT",
"Original": "SELECT kcu.constraint_name constraint_name, kcu.column_name column_name, kcu.referenced_table_name referenced_table_name, kcu.referenced_column_name referenced_column_name, kcu.ordinal_position ordinal_position, kcu.table_name table_name, rc.delete_rule delete_rule, rc.update_rule update_rule FROM information_schema.key_column_usage AS kcu INNER JOIN information_schema.referential_constraints AS rc ON kcu.constraint_name = rc.constraint_name WHERE kcu.table_schema = ? AND rc.constraint_schema = ? AND kcu.referenced_column_name IS NOT NULL ORDER BY ordinal_position",
"Instructions": {
"OperatorType": "Join",
"Variant": "Join",
"JoinColumnIndexes": "-1,-2,-3,-4,-5,-6,1,2",
"TableName": "_",
"Inputs": [
{
"OperatorType": "Route",
"Variant": "SelectDBA",
"Keyspace": {
"Name": "main",
"Sharded": false
},
"FieldQuery": "select kcu.constraint_name as constraint_name, kcu.column_name as column_name, kcu.referenced_table_name as referenced_table_name, kcu.referenced_column_name as referenced_column_name, kcu.ordinal_position as ordinal_position, kcu.table_name as table_name from information_schema.key_column_usage as kcu where 1 != 1",
"Query": "select kcu.constraint_name as constraint_name, kcu.column_name as column_name, kcu.referenced_table_name as referenced_table_name, kcu.referenced_column_name as referenced_column_name, kcu.ordinal_position as ordinal_position, kcu.table_name as table_name from information_schema.key_column_usage as kcu where kcu.table_schema = :__vtschemaname and kcu.referenced_column_name is not null order by ordinal_position asc",
"SysTableTableSchema": ":v1"
},
{
"OperatorType": "Route",
"Variant": "SelectDBA",
"Keyspace": {
"Name": "main",
"Sharded": false
},
"FieldQuery": "select rc.delete_rule as delete_rule, rc.update_rule as update_rule from information_schema.referential_constraints as rc where 1 != 1",
"Query": "select rc.delete_rule as delete_rule, rc.update_rule as update_rule from information_schema.referential_constraints as rc where rc.constraint_name = :kcu_constraint_name and rc.constraint_schema = :__vtschemaname",
"SysTableTableSchema": ":v2"
}
]
}
}