sql

README

Using the SQL schema tool

This package contains the tooling for temporal sql operations. The tooling itself is agnostic of the storage engine behind the sql interface. So, this same tool can be used against, say, OracleDB and MySQLDB

For localhost development

SQL_USER=$USERNAME SQL_PASSWORD=$PASSWD make install-schema-mysql

For production

Create the binary

• Run make temporal-sql-tool on the root of repositroy
• You should see an executable temporal-sql-tool
• Temporal officially support MySQL and Postgres for SQL.
• For other SQL database, you can add it easily as we do for MySQL/Postgres following our code in sql-extensions

Do one time database creation and schema setup for a new cluster

• All command below are taking MySQL as example. For postgres, simply use with "--plugin postgres12"

./temporal-sql-tool --ep $SQL_HOST -p $port --db temporal --plugin mysql8 create
./temporal-sql-tool --ep $SQL_HOST -p $port --db temporal_visibility --plugin mysql8 create

./temporal-sql-tool --ep $SQL_HOST -p $port --plugin mysql8 --db temporal setup-schema -v 0.0 -- this sets up just the schema version tables with initial version of 0.0
./temporal-sql-tool --ep $SQL_HOST -p $port --plugin mysql8 --db temporal update-schema -d ./schema/mysql/v8/temporal/versioned -- upgrades your schema to the latest version

./temporal-sql-tool --ep $SQL_HOST -p $port --plugin mysql8 --db temporal_visibility setup-schema -v 0.0 -- this sets up just the schema version tables with initial version of 0.0 for visibility
./temporal-sql-tool --ep $SQL_HOST -p $port --plugin mysql8 --db temporal_visibility update-schema -d ./schema/mysql/v8/visibility/versioned  -- upgrades your schema to the latest version for visibility

Update schema as part of a release

You can only upgrade to a new version after the initial setup done above.

./temporal-sql-tool --ep $SQL_HOST -p $port --plugin mysql8 --db temporal update-schema -d ./schema/mysql/v8/temporal/versioned -v x.x    -- executes the upgrade to version x.x

./temporal-sql-tool --ep $SQL_HOST -p $port --plugin mysql8 --db temporal_visibility update-schema -d ./schema/mysql/v8/visibility/versioned -v x.x    -- executes the upgrade to version x.x

Documentation

Index

• func BuildCLIOptions() *cli.App
• func DoCreateDatabase(cfg *config.SQL, defaultDb string, logger log.Logger) error
• func DoDropDatabase(cfg *config.SQL, defaultDb string, logger log.Logger) error
• func RunTool(args []string) error
• func ValidateConnectConfig(cfg *config.SQL) error
• type Connection
  • func NewConnection(cfg *config.SQL, logger log.Logger) (*Connection, error)
  • func (c *Connection) Close()
  • func (c *Connection) CreateDatabase(name string) error
  • func (c *Connection) CreateSchemaVersionTables() error
  • func (c *Connection) DropAllTables() error
  • func (c *Connection) DropDatabase(name string) error
  • func (c *Connection) DropTable(name string) error
  • func (c *Connection) Exec(stmt string, args ...interface{}) error
  • func (c *Connection) ListTables() ([]string, error)
  • func (c *Connection) ReadSchemaVersion() (string, error)
  • func (c *Connection) Type() string
  • func (c *Connection) UpdateSchemaVersion(newVersion string, minCompatibleVersion string) error
  • func (c *Connection) WriteSchemaUpdateLog(oldVersion string, newVersion string, manifestMD5 string, desc string) error

Functions

func BuildCLIOptions

func BuildCLIOptions() *cli.App

BuildCLIOptions builds the options for cli

func DoCreateDatabase

func DoCreateDatabase(cfg *config.SQL, defaultDb string, logger log.Logger) error

func DoDropDatabase

func DoDropDatabase(cfg *config.SQL, defaultDb string, logger log.Logger) error

func RunTool

func RunTool(args []string) error

RunTool runs the temporal-sql-tool command line tool

func ValidateConnectConfig

func ValidateConnectConfig(cfg *config.SQL) error

ValidateConnectConfig validates params

Types

type Connection

type Connection struct {
	// contains filtered or unexported fields
}

Connection is the connection to database

func NewConnection

func NewConnection(cfg *config.SQL, logger log.Logger) (*Connection, error)

NewConnection creates a new connection to database

func (*Connection) Close

func (c *Connection) Close()

Close closes the sql client

func (*Connection) CreateDatabase

func (c *Connection) CreateDatabase(name string) error

CreateDatabase creates a database if it doesn't exist

func (*Connection) CreateSchemaVersionTables

func (c *Connection) CreateSchemaVersionTables() error

CreateSchemaVersionTables sets up the schema version tables

func (*Connection) DropAllTables

func (c *Connection) DropAllTables() error

DropAllTables drops all tables from this database

func (*Connection) DropDatabase

func (c *Connection) DropDatabase(name string) error

DropDatabase drops a database

func (*Connection) DropTable

func (c *Connection) DropTable(name string) error

DropTable drops a given table from the database

func (*Connection) Exec

func (c *Connection) Exec(stmt string, args ...interface{}) error

Exec executes a sql statement

func (*Connection) ListTables

func (c *Connection) ListTables() ([]string, error)

ListTables returns a list of tables in this database

func (*Connection) ReadSchemaVersion

func (c *Connection) ReadSchemaVersion() (string, error)

ReadSchemaVersion returns the current schema version for the keyspace

func (*Connection) Type

func (c *Connection) Type() string

Type gives the type of db

func (*Connection) UpdateSchemaVersion

func (c *Connection) UpdateSchemaVersion(newVersion string, minCompatibleVersion string) error

UpdateSchemaVersion updates the schema version for the keyspace

func (*Connection) WriteSchemaUpdateLog

func (c *Connection) WriteSchemaUpdateLog(oldVersion string, newVersion string, manifestMD5 string, desc string) error

WriteSchemaUpdateLog adds an entry to the schema update history table