Function execOK

backend/plugin/parser/tidb/completion.go:307–322

execOK runs DDL against the catalog and reports whether it actually installed a schema object: every statement parsed without error AND at least one was a non-DML (utility) statement that mutated the catalog. A definition that reduces to only skipped DML — e.g. a bare SELECT view body, which TiDB sy

(cat *catalog.Catalog, ddl string)

// stores in information_schema.VIEWS.VIEW_DEFINITION — is NOT a success, so the
// caller falls through to the wrapped CREATE VIEW form.
func execOK(cat *catalog.Catalog, ddl string) bool {
	results, err := cat.Exec(ddl, &catalog.ExecOptions{ContinueOnError: true})
	if err != nil {
		return false
	}
	applied := false
	for _, r := range results {
		if r.Error != nil {
			return false
		}
		if !r.Skipped {
			applied = true
		}
	}
	return applied
}

// backtickIdentifier quotes an identifier for TiDB DDL, escaping embedded
// backticks by doubling them.