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7cf4f2eb89
Requirements: MySQL/MariaDB need to be configured with this settings: innodb_file_format = Barracuda innodb_file_per_table = On innodb_large_prefix = On to support key prefix length up to 3042 bytes. MySQL/MariaDB DSN will need this parameter: parseTime=true as per [1] The migration system itself mostly inspired by Rails (ActiveRecord), but it still rough at the edges. Could use some inputs. Next Todo: more testing! [1] https://github.com/go-sql-driver/mysql#parsetime
36 lines
998 B
Go
36 lines
998 B
Go
package migrate
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import (
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"database/sql"
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)
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// Operation interface covers basic migration operations.
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// Implementation details is specific for each database,
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// see migrate/sqlite.go for implementation reference.
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type Operation interface {
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CreateTable(tableName string, args []string) (sql.Result, error)
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RenameTable(tableName, newName string) (sql.Result, error)
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DropTable(tableName string) (sql.Result, error)
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AddColumn(tableName, columnSpec string) (sql.Result, error)
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ChangeColumn(tableName, columnName, newType string) (sql.Result, error)
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DropColumns(tableName string, columnsToDrop []string) (sql.Result, error)
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RenameColumns(tableName string, columnChanges map[string]string) (sql.Result, error)
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AddIndex(tableName string, columns []string, flags ...string) (sql.Result, error)
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DropIndex(tableName string, columns []string) (sql.Result, error)
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}
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type MigrationDriver struct {
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Operation
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T *columnType
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Tx *sql.Tx
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}
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type DriverBuilder func(tx *sql.Tx) *MigrationDriver
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