Function isExplainableInner

backend/plugin/parser/doris/query.go:83–92

isExplainableInner reports whether `node` is a shape that EXPLAIN can legitimately wrap (SELECT family or DML). DDL inside EXPLAIN is rejected: Doris only supports EXPLAIN on query and DML statements.

(node ast.Node)

// legitimately wrap (SELECT family or DML). DDL inside EXPLAIN is rejected:
// Doris only supports EXPLAIN on query and DML statements.
func isExplainableInner(node ast.Node) bool {
	switch node.(type) {
	case *ast.SelectStmt, *ast.SetOpStmt:
		return true
	case *ast.InsertStmt, *ast.UpdateStmt, *ast.DeleteStmt,
		*ast.MergeStmt, *ast.TruncateTableStmt:
		return true
	}
	return false
}