GetAutoColumnFromDef get auto columns from table def.

GetAutoIncrementService get increment service from process level runtime.

NewMemStore new mem store.

SetAutoIncrementServiceByID set auto increment service instance into process level runtime.

AutoColumn model.

Config auto increment config.

AutoIncrementService provides data service for the columns of auto-increment.

IncrValueStore is used to add and delete metadata records for auto-increment columns.