(ctx context.Context, query string, args ...*plugin.Parameter)
| 306 | } |
| 307 | |
| 308 | func (p *pgxConn) Explain(ctx context.Context, query string, args ...*plugin.Parameter) (*vetEngineOutput, error) { |
| 309 | eQuery := "EXPLAIN (ANALYZE false, VERBOSE, COSTS, SETTINGS, BUFFERS, FORMAT JSON) " + query |
| 310 | eArgs := make([]any, len(args)) |
| 311 | for i, a := range args { |
| 312 | eArgs[i] = pgDefaultValue(a.Column) |
| 313 | } |
| 314 | row := p.c.QueryRow(ctx, eQuery, eArgs...) |
| 315 | var result []json.RawMessage |
| 316 | if err := row.Scan(&result); err != nil { |
| 317 | return nil, err |
| 318 | } |
| 319 | if debug.Debug.DumpExplain { |
| 320 | fmt.Println(eQuery, "with args", eArgs) |
| 321 | fmt.Println(string(result[0])) |
| 322 | } |
| 323 | var explain vet.PostgreSQLExplain |
| 324 | if err := pjson.Unmarshal(result[0], &explain); err != nil { |
| 325 | return nil, err |
| 326 | } |
| 327 | return &vetEngineOutput{PostgreSQL: &vet.PostgreSQL{Explain: &explain}}, nil |
| 328 | } |
| 329 | |
| 330 | type dbPreparer struct { |
| 331 | db *sql.DB |
nothing calls this directly
no test coverage detected