// writeMutation writes the mutation to the table descriptor. If the
// State or the Direction is undefined, these values are populated via
// picking random values before the mutation is written.
func (mt mutationTest) writeMutation(m sqlbase.DescriptorMutation) {
if m.Direction == sqlbase.DescriptorMutation_NONE {
// randomly pick ADD/DROP mutation if this is the first mutation, or
// pick the direction already chosen for the first mutation.
if len(mt.tableDesc.Mutations) > 0 {
m.Direction = mt.tableDesc.Mutations[0].Direction
} else {
m.Direction = sqlbase.DescriptorMutation_DROP
if rand.Intn(2) == 0 {
m.Direction = sqlbase.DescriptorMutation_ADD
}
}
}
if m.State == sqlbase.DescriptorMutation_UNKNOWN {
// randomly pick DELETE_ONLY/WRITE_ONLY state.
r := rand.Intn(2)
if r == 0 {
m.State = sqlbase.DescriptorMutation_DELETE_ONLY
} else {
m.State = sqlbase.DescriptorMutation_WRITE_ONLY
}
}
mt.tableDesc.Mutations = append(mt.tableDesc.Mutations, m)
if err := mt.tableDesc.Validate(); err != nil {
mt.Fatal(err)
}
if err := mt.kvDB.Put(
sqlbase.MakeDescMetadataKey(mt.tableDesc.ID),
sqlbase.WrapDescriptor(mt.tableDesc),
); err != nil {
mt.Fatal(err)
}
}
// writeMutation writes the mutation to the table descriptor. If the
// State or the Direction is undefined, these values are populated via
// picking random values before the mutation is written.
func (mt mutationTest) writeMutation(m sqlbase.DescriptorMutation) {
if m.Direction == sqlbase.DescriptorMutation_NONE {
// randomly pick ADD/DROP mutation.
r := rand.Intn(2)
if r == 0 {
m.Direction = sqlbase.DescriptorMutation_ADD
} else {
m.Direction = sqlbase.DescriptorMutation_DROP
}
}
if m.State == sqlbase.DescriptorMutation_UNKNOWN {
// randomly pick DELETE_ONLY/WRITE_ONLY state.
r := rand.Intn(2)
if r == 0 {
m.State = sqlbase.DescriptorMutation_DELETE_ONLY
} else {
m.State = sqlbase.DescriptorMutation_WRITE_ONLY
}
}
tableDesc := mt.desc.GetTable()
tableDesc.Mutations = append(tableDesc.Mutations, m)
if err := tableDesc.Validate(); err != nil {
mt.Fatal(err)
}
if err := mt.kvDB.Put(mt.descKey, mt.desc); err != nil {
mt.Fatal(err)
}
}