> ## Documentation Index > Fetch the complete documentation index at: https://docs.bijection.com/llms.txt > Use this file to discover all available pages before exploring further. # Class: AnswerExecution > A reference to one execution, never authority to read it. [browser](/api/modules/browser).AnswerExecution A reference to one execution, never authority to read it. ## Type parameters | Name | Type | | :- | :- | | `Row` | `Record`\<`string`, [`Value`](/api/modules/values#value)> | | `Kind` | extends [`AnswerKind`](/api/modules/server#answerkind) = [`AnswerKind`](/api/modules/server#answerkind) | ## Constructors ### constructor • **new AnswerExecution**\<`Row`, `Kind`>(`transport`, `answer_id`, `initial?`, `recovery?`, `expectedKind?`) #### Type parameters | Name | Type | | :- | :- | | `Row` | `Record`\<`string`, [`Value`](/api/modules/values#value)> | | `Kind` | extends [`AnswerKind`](/api/modules/server#answerkind) = [`AnswerKind`](/api/modules/server#answerkind) | #### Parameters | Name | Type | | :- | :- | | `transport` | `AnswerExecutionTransport`\<`Row`> | | `answer_id` | [`AnswerId`](/api/modules/server#answerid)\<`Row`> | | `initial?` | [`AnswerState`](/api/modules/server#answerstate)\<`Row`> | | `recovery?` | [`AnswerRecovery`](/api/interfaces/browser.AnswerRecovery) \| () => `Promise`\<[`AnswerRecovery`](/api/interfaces/browser.AnswerRecovery)> | | `expectedKind?` | `Kind` | ## Properties ### resultContract • `Protected` `Readonly` **resultContract**: `Kind` *** ### transport • `Protected` `Readonly` **transport**: `AnswerExecutionTransport`\<`Row`> *** ### answer\_id • `Readonly` **answer\_id**: [`AnswerId`](/api/modules/server#answerid)\<`Row`> *** ### expectedKind • `Protected` `Optional` **expectedKind**: `Kind` ## Methods ### snapshot ▸ `Readonly` **snapshot**(): [`AnswerSnapshot`](/api/modules/browser#answersnapshot)\<`Row`> #### Returns [`AnswerSnapshot`](/api/modules/browser#answersnapshot)\<`Row`> *** ### subscribe ▸ `Readonly` **subscribe**(`listener`): () => `void` #### Parameters | Name | Type | | :- | :- | | `listener` | () => `void` | #### Returns `fn` ▸ (): `void` ##### Returns `void` *** ### update ▸ `Protected` **update**(`change`): `void` #### Parameters | Name | Type | | :- | :- | | `change` | `Partial`\<[`AnswerSnapshot`](/api/modules/browser#answersnapshot)\<`Row`>> | #### Returns `void` *** ### status ▸ **status**(`request?`): `Promise`\<[`AnswerState`](/api/modules/server#answerstate)\<`Row`>> #### Parameters | Name | Type | | :- | :- | | `request?` | \{ `mode`: `"collect"` ; `expression`: [`RelationExpression`](/api/modules/server#relationexpression) ; `max_rows`: `number` ; `max_bytes`: `number` } & \{ `result?`: `"complete"` \| `"browse"` } | #### Returns `Promise`\<[`AnswerState`](/api/modules/server#answerstate)\<`Row`>> *** ### explain ▸ **explain**(): `Promise`\<\{ `plan`: [`AnswerPlan`](/api/interfaces/server.AnswerPlan) }> Read the admitted plan through the execution's current native access gate. #### Returns `Promise`\<\{ `plan`: [`AnswerPlan`](/api/interfaces/server.AnswerPlan) }> *** ### matches ▸ **matches**(`relation`, `bounds?`): `Promise`\<`boolean`> Compare the admitted request at its owner, without disclosing relation literals to recovery storage or submitting an unused reservation. #### Parameters | Name | Type | | :- | :- | | `relation` | [`Relation`](/api/classes/server.Relation)\<`unknown`> | | `bounds` | [`AnswerBounds`](/api/modules/browser#answerbounds)\<[`AnswerKind`](/api/modules/server#answerkind)> | #### Returns `Promise`\<`boolean`> *** ### wait ▸ **wait**(`options?`): `Promise`\<`Extract`\<\{ `answer_id`: [`AnswerId`](/api/modules/server#answerid)\<`Row`> ; `question_binding?`: `Readonly`\<\{ `function`: `string` ; `contract_digest`: `string` }> ; `deadline`: `string` ; `expires_at`: `string` ; `request_digest`: `string` ; `is_request_match?`: `boolean` ; `usage?`: [`AnswerUsage`](/api/interfaces/server.AnswerUsage) } & \{ `state`: `"ready"` ; `plan`: [`AnswerPlan`](/api/interfaces/server.AnswerPlan) ; `basis`: \{ `kind`: `"dataset_snapshots"` ; `local_revision?`: `string` ; `inputs`: \{ `table`: `string` ; `dataset`: `string` ; `version`: `string` ; `metadata`: [`Value`](/api/modules/values#value) }\[] } | \{ `kind`: `"statement"` ; `provider`: `"snowflake"` | `"databricks"` | `"duckdb"` | `"clickhouse"` } | \{ `kind`: `"federated"` ; `local_revision?`: `string` ; `remote`: \{ `kind`: `"statement"` ; `provider`: `"snowflake"` | `"databricks"` | `"duckdb"` | `"clickhouse"` ; `tables`: `string`\[] }\[] } ; `completed_at`: `string` } & `Kind` extends `"complete"` ? \{ `result_kind`: `"complete"` ; `row_count`: `number` ; `result_digest`: `string` } : \{ `result_kind`: `"browse"` ; `row_count`: `null` ; `result_digest?`: `undefined` }, \{ `state`: `"ready"` }>> #### Parameters | Name | Type | | :- | :- | | `options` | `Object` | | `options.signal?` | `AbortSignal` | #### Returns `Promise`\<`Extract`\<\{ `answer_id`: [`AnswerId`](/api/modules/server#answerid)\<`Row`> ; `question_binding?`: `Readonly`\<\{ `function`: `string` ; `contract_digest`: `string` }> ; `deadline`: `string` ; `expires_at`: `string` ; `request_digest`: `string` ; `is_request_match?`: `boolean` ; `usage?`: [`AnswerUsage`](/api/interfaces/server.AnswerUsage) } & \{ `state`: `"ready"` ; `plan`: [`AnswerPlan`](/api/interfaces/server.AnswerPlan) ; `basis`: \{ `kind`: `"dataset_snapshots"` ; `local_revision?`: `string` ; `inputs`: \{ `table`: `string` ; `dataset`: `string` ; `version`: `string` ; `metadata`: [`Value`](/api/modules/values#value) }\[] } | \{ `kind`: `"statement"` ; `provider`: `"snowflake"` | `"databricks"` | `"duckdb"` | `"clickhouse"` } | \{ `kind`: `"federated"` ; `local_revision?`: `string` ; `remote`: \{ `kind`: `"statement"` ; `provider`: `"snowflake"` | `"databricks"` | `"duckdb"` | `"clickhouse"` ; `tables`: `string`\[] }\[] } ; `completed_at`: `string` } & `Kind` extends `"complete"` ? \{ `result_kind`: `"complete"` ; `row_count`: `number` ; `result_digest`: `string` } : \{ `result_kind`: `"browse"` ; `row_count`: `null` ; `result_digest?`: `undefined` }, \{ `state`: `"ready"` }>> *** ### observe ▸ **observe**(`options?`): `AsyncGenerator`\<`Extract`\<\{ `answer_id`: [`AnswerId`](/api/modules/server#answerid)\<`Row`> ; `question_binding?`: `Readonly`\<\{ `function`: `string` ; `contract_digest`: `string` }> ; `deadline`: `string` ; `expires_at`: `string` ; `request_digest`: `string` ; `is_request_match?`: `boolean` ; `usage?`: [`AnswerUsage`](/api/interfaces/server.AnswerUsage) } & \{ `state`: `"ready"` ; `plan`: [`AnswerPlan`](/api/interfaces/server.AnswerPlan) ; `basis`: \{ `kind`: `"dataset_snapshots"` ; `local_revision?`: `string` ; `inputs`: \{ `table`: `string` ; `dataset`: `string` ; `version`: `string` ; `metadata`: [`Value`](/api/modules/values#value) }\[] } | \{ `kind`: `"statement"` ; `provider`: `"snowflake"` | `"databricks"` | `"duckdb"` | `"clickhouse"` } | \{ `kind`: `"federated"` ; `local_revision?`: `string` ; `remote`: \{ `kind`: `"statement"` ; `provider`: `"snowflake"` | `"databricks"` | `"duckdb"` | `"clickhouse"` ; `tables`: `string`\[] }\[] } ; `completed_at`: `string` } & `Kind` extends `"complete"` ? \{ `result_kind`: `"complete"` ; `row_count`: `number` ; `result_digest`: `string` } : \{ `result_kind`: `"browse"` ; `row_count`: `null` ; `result_digest?`: `undefined` }, \{ `state`: `"ready"` }>, `any`, `unknown`> Observe local custody revisions on the existing subscription transport. Every revision hides managed pages before a full native status check. Stopping observation leaves the durable execution and its custody intact. #### Parameters | Name | Type | | :- | :- | | `options` | `Object` | | `options.signal?` | `AbortSignal` | #### Returns `AsyncGenerator`\<`Extract`\<\{ `answer_id`: [`AnswerId`](/api/modules/server#answerid)\<`Row`> ; `question_binding?`: `Readonly`\<\{ `function`: `string` ; `contract_digest`: `string` }> ; `deadline`: `string` ; `expires_at`: `string` ; `request_digest`: `string` ; `is_request_match?`: `boolean` ; `usage?`: [`AnswerUsage`](/api/interfaces/server.AnswerUsage) } & \{ `state`: `"ready"` ; `plan`: [`AnswerPlan`](/api/interfaces/server.AnswerPlan) ; `basis`: \{ `kind`: `"dataset_snapshots"` ; `local_revision?`: `string` ; `inputs`: \{ `table`: `string` ; `dataset`: `string` ; `version`: `string` ; `metadata`: [`Value`](/api/modules/values#value) }\[] } | \{ `kind`: `"statement"` ; `provider`: `"snowflake"` | `"databricks"` | `"duckdb"` | `"clickhouse"` } | \{ `kind`: `"federated"` ; `local_revision?`: `string` ; `remote`: \{ `kind`: `"statement"` ; `provider`: `"snowflake"` | `"databricks"` | `"duckdb"` | `"clickhouse"` ; `tables`: `string`\[] }\[] } ; `completed_at`: `string` } & `Kind` extends `"complete"` ? \{ `result_kind`: `"complete"` ; `row_count`: `number` ; `result_digest`: `string` } : \{ `result_kind`: `"browse"` ; `row_count`: `null` ; `result_digest?`: `undefined` }, \{ `state`: `"ready"` }>, `any`, `unknown`> *** ### result ▸ **result**(`options?`): `Promise`\<[`AnswerResult`](/api/modules/browser#answerresult)\<`Row`, `Kind`>> Select the typed result handle without collecting rows. Dynamic discovery uses this union. #### Parameters | Name | Type | | :- | :- | | `options` | `Object` | | `options.signal?` | `AbortSignal` | #### Returns `Promise`\<[`AnswerResult`](/api/modules/browser#answerresult)\<`Row`, `Kind`>> *** ### cancel ▸ **cancel**(): `Promise`\<[`AnswerControl`](/api/interfaces/server.AnswerControl)\<`Row`>> #### Returns `Promise`\<[`AnswerControl`](/api/interfaces/server.AnswerControl)\<`Row`>> *** ### release ▸ **release**(): `Promise`\<[`AnswerControl`](/api/interfaces/server.AnswerControl)\<`Row`>> #### Returns `Promise`\<[`AnswerControl`](/api/interfaces/server.AnswerControl)\<`Row`>> This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.