Function containsTable

backend/plugin/parser/tidb/restore.go:515–524

containsTable checks whether the given AST node MUTATES the specified table (not merely references it via JOIN/USING). For UPDATE: the table must appear as the qualifier of at least one SET assignment — being only joined for filtering is not enough.

(node ast.Node, database, table string, targetCols map[string]bool)

// For UPDATE: the table must appear as the qualifier of at least one SET
// assignment — being only joined for filtering is not enough.
func containsTable(node ast.Node, database, table string, targetCols map[string]bool) bool {
	switch n := node.(type) {
	case *ast.UpdateStmt:
		return updateMutatesTable(n, database, table, targetCols)
	case *ast.DeleteStmt:
		return deleteMutatesTable(n, database, table)
	default:
	}
	return false
}

// deleteMutatesTable reports whether the DELETE removes rows from the specified
// physical table.