rdblue commented on code in PR #9695:
URL: https://github.com/apache/iceberg/pull/9695#discussion_r1692062862
##########
open-api/rest-catalog-open-api.yaml:
##########
@@ -3647,6 +3818,176 @@ components:
type: integer
description: "List of equality field IDs"
+ PreplanTableRequest:
+ type: object
+ required:
+ - table-scan-context
+ properties:
+ table-scan-context:
+ $ref: '#/components/schemas/TableScanContext'
+
+ PlanTableRequest:
+ type: object
+ required:
+ - table-scan-context
+ properties:
+ table-scan-context:
+ $ref: '#/components/schemas/TableScanContext'
+ plan-task:
+ $ref: '#/components/schemas/PlanTask'
+ stats-fields:
+ description:
+ A list of fields that the client requests the server to send
statistics
+ in each `FileScanTask` returned in the response
+ type: array
+ items:
+ $ref: '#/components/schemas/FieldName'
+
+ TableScanContext:
+ anyOf:
+ - $ref: '#/components/schemas/SnapshotScanContext'
+ - $ref: '#/components/schemas/IncrementalSnapshotScanContext'
+
+ BaseTableScanContext:
+ discriminator:
+ propertyName: type
+ mapping:
+ snapshot-scan: '#/components/schemas/SnapshotScanContext'
+ incremental-snapshot-scan:
'#/components/schemas/IncrementalSnapshotScanContext'
+ type: object
+ required:
+ - type
+ properties:
+ type:
+ type: string
+
+ SnapshotScanContext:
+ description: context for scanning data in a specific snapshot
+ type: object
+ allOf:
+ - $ref: '#/components/schemas/BaseTableScanContext'
+ required:
+ - type
+ properties:
+ type:
+ type: string
+ enum: ["snapshot-scan"]
+ select:
+ $ref: '#/components/schemas/SelectedFieldNames'
+ filter:
+ $ref: '#/components/schemas/Filter'
+ case-sensitive:
+ description: If field selection and filtering should be case
sensitive
+ type: boolean
+ default: true
+ snapshot-id:
+ description:
+ The ID of the snapshot to use for the table scan.
+ If not specified, the snapshot at the main branch head will be
used.
+ type: integer
+ format: int64
+ use-snapshot-schema:
+ description:
+ If the schema of the specific snapshot should be used instead of
the table schema.
+ type: boolean
+ default: false
+
+ IncrementalSnapshotScanContext:
+ description:
+ Context for scanning data appended in a range of snapshots.
+ The scan always follows the schema of the snapshot at the main branch
head.
+ type: object
+ allOf:
+ - $ref: '#/components/schemas/BaseTableScanContext'
+ required:
+ - type
+ - start-snapshot-id
+ properties:
+ type:
+ type: string
+ enum: ["incremental-snapshot-scan"]
+ select:
+ $ref: '#/components/schemas/SelectedFieldNames'
+ filter:
+ $ref: '#/components/schemas/Filter'
+ case-sensitive:
+ description: If field selection and filtering should be case
sensitive
+ type: boolean
+ default: true
+ start-snapshot-id:
+ description: The ID of the starting snapshot of the incremental scan
+ type: integer
+ format: int64
+ inclusive-start:
+ description: If the data appended in the start snapshot should be
included in the scan
+ type: boolean
+ default: false
+ end-snapshot-id:
+ description:
+ The ID of the inclusive ending snapshot of the incremental scan.
+ If not specified, the snapshot at the main branch head will be
used as the end snapshot.
+ type: integer
+ format: int64
+
+ FieldName:
+ description:
+ A field name that follows the Iceberg naming standard, and can be used
in APIs like
+ Java `Schema#findField(String name)`.
+
+ The nested field name follows these rules
+ - nested struct fields are named by concatenating field names at each
struct level using dot (`.`) delimiter,
+ e.g. employer.contact_info.address.zip_code
+ - nested fields in a map key are named using the keyword `key`, e.g.
employee_address_map.key.first_name
+ - nested fields in a map value are named using the keyword `value`,
e.g. employee_address_map.value.zip_code
+ - nested fields in a list are named using the keyword `element`, e.g.
employees.element.first_name
+ type: string
+
+ SelectedFieldNames:
+ description:
+ A list of fields in schema that are selected in a table scan.
+ When not specified, all columns in the requested schema should be
selected.
+ type: array
+ items:
+ $ref: '#/components/schemas/FieldName'
+
+ Filter:
Review Comment:
There were a couple of uses of `Filter`, but we already have an expression
type and I don't see a reason to make a subtype that has a default. It is up to
the request that uses an expression whether an expression is optional and what
the semantics are if an expression is not included.
When using an expression in the scan context's `filter`, then if there _is
not filter_ I think the behavior is fairly clear (do not filter). We can
explicitly state that as well if it anyone thinks that it is needed, but I
don't think that we need to require that clients send `"filter": {"type":
"true"}`.
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