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fix query examples: add declare & change scan type #1712
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            flymedllva
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              | Original file line number | Diff line number | Diff line change | 
|---|---|---|
|  | @@ -206,12 +206,16 @@ | |
| } | ||
| defer db.Close(ctx) // cleanup resources | ||
| var ( | ||
| id int32 // required value | ||
| id uint64 // required value | ||
| myStr string // required value | ||
| ) | ||
| // Do retry operation on errors with best effort | ||
| row, err := db.Query().QueryRow(ctx, // context manage exiting from Do | ||
| `SELECT CAST($id AS Uint64) AS id, CAST($myStr AS Text) AS myStr`, | ||
| ` | ||
| DECLARE $id AS Uint64; | ||
| There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. | ||
| DECLARE $myStr AS Text; | ||
| SELECT CAST($id AS Uint64) AS id, CAST($myStr AS Text) AS myStr | ||
| `, | ||
| query.WithParameters( | ||
| ydb.ParamsBuilder(). | ||
| Param("$id").Uint64(123). | ||
|  | @@ -243,13 +247,17 @@ | |
| } | ||
| defer db.Close(ctx) // cleanup resources | ||
| var ( | ||
| id int32 // required value | ||
| id uint64 // required value | ||
| myStr string // required value | ||
| ) | ||
| var stats query.Stats | ||
| // Do retry operation on errors with best effort | ||
| row, err := db.Query().QueryRow(ctx, // context manage exiting from Do | ||
| `SELECT CAST($id AS Uint64) AS id, CAST($myStr AS Text) AS myStr`, | ||
| ` | ||
| DECLARE $id AS Uint64; | ||
| DECLARE $myStr AS Text; | ||
| SELECT CAST($id AS Uint64) AS id, CAST($myStr AS Text) AS myStr | ||
| `, | ||
| query.WithParameters( | ||
| ydb.ParamsBuilder(). | ||
| Param("$id").Uint64(123). | ||
|  | @@ -309,13 +317,17 @@ | |
| } | ||
| defer db.Close(ctx) // cleanup resources | ||
| var ( | ||
| id int32 // required value | ||
| id uint64 // required value | ||
| myStr string // required value | ||
| ) | ||
| // Do retry operation on errors with best effort | ||
| err = db.Query().Do(ctx, func(ctx context.Context, s query.Session) error { | ||
| streamResult, err := s.Query(ctx, // context manage exiting from Do | ||
| `SELECT CAST($id AS Uint64) AS id, CAST($myStr AS Text) AS myStr`, | ||
| ` | ||
| DECLARE $id AS Uint64; | ||
| DECLARE $myStr AS Text; | ||
| SELECT CAST($id AS Uint64) AS id, CAST($myStr AS Text) AS myStr | ||
| `, | ||
| query.WithParameters( | ||
| ydb.ParamsBuilder(). | ||
| Param("$id").Uint64(123). | ||
|  | @@ -367,7 +379,7 @@ | |
| } | ||
| defer db.Close(ctx) // cleanup resources | ||
| var ( | ||
| id int32 // required value | ||
| id uint64 // required value | ||
| myStr string // optional value | ||
| ) | ||
| // Do retry operation on errors with best effort | ||
|  | @@ -424,7 +436,7 @@ | |
| } | ||
| defer db.Close(ctx) // cleanup resources | ||
| var ( | ||
| id int32 // required value | ||
| id uint64 // required value | ||
| myStr string // optional value | ||
| ) | ||
| // Do retry operation on errors with best effort | ||
|  | @@ -476,9 +488,13 @@ | |
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer db.Close(ctx) // cleanup resources | ||
| defer db.Close(ctx) // cleanup resources | ||
| op, err := db.Query().ExecuteScript(ctx, // context manage exiting from Do | ||
| `SELECT CAST($id AS Uint64) AS id, CAST($myStr AS Text) AS myStr`, | ||
| ` | ||
| DECLARE $id AS Uint64; | ||
| DECLARE $myStr AS Text; | ||
| SELECT CAST($id AS Uint64) AS id, CAST($myStr AS Text) AS myStr | ||
| `, | ||
| time.Hour, | ||
| query.WithParameters( | ||
| ydb.ParamsBuilder(). | ||
|  | @@ -519,7 +535,7 @@ | |
| panic(err) | ||
| } | ||
| var ( | ||
| id int64 | ||
| id uint64 | ||
| myStr string | ||
| ) | ||
| err = row.Scan(&id, &myStr) | ||
|  | ||
      
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scan to types other than those stored in the database does not work