capabilities

Documentation

Index

• Variables
• func MySQLVersionHasCapability(serverVersion string, capability FlavorCapability) (bool, error)
• func ServerVersionAtLeast(serverVersion string, parts ...int) (bool, error)
• type CapableOf
  • func MySQLVersionCapableOf(serverVersion string) CapableOf
• type FlavorCapability

Variables

var (
	ErrUnspecifiedServerVersion = vterrors.Errorf(vtrpcpb.Code_INTERNAL, "server version unspecified")
)

Functions

func MySQLVersionHasCapability

func MySQLVersionHasCapability(serverVersion string, capability FlavorCapability) (bool, error)

MySQLVersionHasCapability is specific to MySQL flavors (of all versions) and answers whether the given server version has the requested capability.

func ServerVersionAtLeast

func ServerVersionAtLeast(serverVersion string, parts ...int) (bool, error)

ServerVersionAtLeast returns true if current server is at least given value. Example: if input is []int{8, 0, 23}... the function returns 'true' if we're on MySQL 8.0.23, 8.0.24, ...

Types

type CapableOf

type CapableOf func(capability FlavorCapability) (bool, error)

func MySQLVersionCapableOf

func MySQLVersionCapableOf(serverVersion string) CapableOf

MySQLVersionCapableOf returns a CapableOf function specific to MySQL flavors

type FlavorCapability

type FlavorCapability int

const (
	NoneFlavorCapability                        FlavorCapability = iota // default placeholder
	FastDropTableFlavorCapability                                       // supported in MySQL 8.0.23 and above: https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-23.html
	TransactionalGtidExecutedFlavorCapability                           //
	InstantDDLFlavorCapability                                          // ALGORITHM=INSTANT general support
	InstantAddLastColumnFlavorCapability                                //
	InstantAddDropVirtualColumnFlavorCapability                         //
	InstantAddDropColumnFlavorCapability                                // Adding/dropping column in any position/ordinal.
	InstantChangeColumnDefaultFlavorCapability                          //
	InstantExpandEnumCapability                                         //
	MySQLJSONFlavorCapability                                           // JSON type supported
	MySQLUpgradeInServerFlavorCapability                                //
	DynamicRedoLogCapacityFlavorCapability                              // supported in MySQL 8.0.30 and above: https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-30.html
	DisableRedoLogFlavorCapability                                      // supported in MySQL 8.0.21 and above: https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-21.html
	CheckConstraintsCapability                                          // supported in MySQL 8.0.16 and above: https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-16.html
	PerformanceSchemaDataLocksTableCapability                           // supported in MySQL 8.0.1 and above: https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-1.html
	InstantDDLXtrabackupCapability                                      // Supported in 8.0.32 and above, solving a MySQL-vs-Xtrabackup bug starting 8.0.29
	ReplicaTerminologyCapability                                        // Supported in 8.0.26 and above, using SHOW REPLICA STATUS and all variations.
)