dbhash

Documentation

Index

• func DatabaseStateHash(ctx context.Context, tx *sql.Tx, opts ...Option) (string, error)
• type Config
  • func DefaultConfig() *Config
• type Option
  • func WithFetchSchemasQuery(clause string) Option
  • func WithPerTableQueryFn(fn func(tableName string) string) Option

Functions

func DatabaseStateHash

func DatabaseStateHash(ctx context.Context, tx *sql.Tx, opts ...Option) (string, error)

DatabaseStateHash calculates the hash of some state of the database according to the options passed.

Types

type Config

type Config struct {
	FetchSchemasQuery string
	PerTableQueryFn   func(string) string
}

Config contains configuration parameters for tableland.

func DefaultConfig

func DefaultConfig() *Config

DefaultConfig returns the default configuration.

type Option

type Option func(*Config) error

Option modifies a configuration attribute.

func WithFetchSchemasQuery

func WithFetchSchemasQuery(clause string) Option

WithFetchSchemasQuery limits tables that will be used for hash calculation.

func WithPerTableQueryFn

func WithPerTableQueryFn(fn func(tableName string) string) Option

WithPerTableQueryFn defines a function that returns a query for a given table.