Per-region conformance
The headline is eu-west-2 + 5 regions. Real DynamoDB doesn't behave identically in every region, so a target can match some regions more closely than others. eu-west-2 is marked as the historical baseline, and a region that couldn't be resolved this sweep is flagged rather than counted as a disagreement.
Fully supports
Operation areas this target implements completely - every test passes, nothing skipped. Areas it only partly implements, or gets wrong, are in “Where it falls short” below.
- batchGetItem tier 1
- batchWriteItem tier 1
- createTable tier 1
- deleteItem tier 1
- deleteTable tier 1
- describeTable tier 1
- getItem tier 1
- listTables tier 1
- putItem tier 1
- query tier 1
- scan tier 1
- updateItem tier 1
- updateTable tier 1
- updateTable tier 2
- legacy-api tier 3
- validation-ordering tier 3
Conformance over time
By operation
Every operation this target implements, with the share of its tests that pass. full, partial, failing, unsupported. The matrix compares operations across targets.
Tier 1 - Core
- batchGetItem 15/15 100.0% batchGetItem: supported (15 pass)
- batchWriteItem 18/18 100.0% batchWriteItem: supported (18 pass)
- createTable 30/30 100.0% createTable: supported (30 pass)
- deleteItem 13/13 100.0% deleteItem: supported (13 pass)
- deleteTable 3/3 100.0% deleteTable: supported (3 pass)
- describeTable 4/4 100.0% describeTable: supported (4 pass)
- getItem 40/40 100.0% getItem: supported (40 pass)
- listTables 5/5 100.0% listTables: supported (5 pass)
- putItem 116/116 100.0% putItem: supported (116 pass)
- query 90/90 100.0% query: supported (90 pass)
- scan 56/56 100.0% scan: supported (56 pass)
- updateItem 70/70 100.0% updateItem: supported (70 pass)
- updateTable 15/15 100.0% updateTable: supported (15 pass)
Tier 2 - Complete
- account 0/0 · 2 skip n/a account: unsupported (2 skip)
- backups 0/0 · 5 skip n/a backups: unsupported (5 skip)
- contributorInsights 0/0 · 2 skip n/a contributorInsights: unsupported (2 skip)
- export 0/0 · 2 skip n/a export: unsupported (2 skip)
- kinesis 0/0 · 1 skip n/a kinesis: unsupported (1 skip)
- partiql 0/0 · 76 skip n/a partiql: unsupported (76 skip)
- resourcePolicy 0/0 · 2 skip n/a resourcePolicy: unsupported (2 skip)
- streams 0/0 · 18 skip n/a streams: unsupported (18 skip)
- tags 0/0 · 8 skip n/a tags: unsupported (8 skip)
- transactions 11/11 · 51 skip 100.0% transactions: partially supported (11 pass, 51 skip)
- ttl 0/0 · 7 skip n/a ttl: unsupported (7 skip)
- updateTable 14/14 100.0% updateTable: supported (14 pass)
Tier 3 - Strict
- error-messages 123/123 · 35 skip 100.0% error-messages: partially supported (123 pass, 35 skip)
- legacy-api 42/42 100.0% legacy-api: supported (42 pass)
- limits 89/89 · 4 skip 100.0% limits: partially supported (89 pass, 4 skip)
- validation-ordering 31/31 100.0% validation-ordering: supported (31 pass)
Where it falls short
Operation groups with gaps in the latest run, biggest first. Unsupported means the target doesn't implement that feature at all, often by design. Open one for the exact tests, or see the conformance suite.
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partiql Tier 2 unsupported
View these tests in the suite →- BatchExecuteStatement - PartiQL batch of multiple SELECT statements
- BatchExecuteStatement - PartiQL batch of INSERT and UPDATE statements
- BatchExecuteStatement - PartiQL partial failure - one valid and one invalid statement
- BatchExecuteStatement - PartiQL honours a RETURNING clause on a member statement
- BatchExecuteStatement - PartiQL honours a RETURNING ALL NEW * clause on a member UPDATE
- BatchExecuteStatement - PartiQL honours a RETURNING MODIFIED NEW * clause on a member UPDATE (only the changed attr)
- BatchExecuteStatement - PartiQL omits Item when a member UPDATE produces an empty MODIFIED projection
- BatchExecuteStatement - PartiQL surfaces an invalid RETURNING variant on a member DELETE as a per-statement error
- BatchExecuteStatement - PartiQL surfaces a malformed member statement as a per-statement ValidationError without failing the batch
- BatchExecuteStatement - PartiQL rejects an empty Statements array
- ExecuteStatement - PartiQL INSERTs a new item
- ExecuteStatement - PartiQL SELECTs an item by primary key
- ExecuteStatement - PartiQL SELECTs with WHERE clause using comparison
- ExecuteStatement - PartiQL UPDATEs an existing item
- ExecuteStatement - PartiQL DELETEs an item
- ExecuteStatement - PartiQL rejects INSERT on an existing item (INSERT is not upsert)
- ExecuteStatement - PartiQL INSERT succeeds after DELETE of same key
- ExecuteStatement - PartiQL SELECT returns empty results for non-matching WHERE
- ExecuteStatement - PartiQL parameterized INSERT with ? placeholders
- ExecuteStatement - PartiQL parameterized SELECT with ? placeholder
- ExecuteStatement - PartiQL SELECT with nested map path
- ExecuteStatement - PartiQL SELECT with specific attributes
- ExecuteStatement - PartiQL SELECT with begins_with in WHERE clause
- ExecuteStatement - PartiQL PartiQL UPDATE with SET on attribute
- ExecuteStatement - PartiQL PartiQL UPDATE with REMOVE
- ExecuteStatement - PartiQL returns a populated ConsumedCapacity block when requested
- ExecuteStatement - PartiQL evaluates negated predicates (NOT begins_with, IS NOT MISSING)
- ExecuteStatement - PartiQL DELETE with a false non-key predicate fails ConditionalCheckFailed and leaves the item
- ExecuteStatement - PartiQL DELETE with a true non-key predicate removes the item
- ExecuteStatement - PartiQL UPDATE with a false non-key predicate fails ConditionalCheckFailed and leaves the item
- ExecuteStatement - PartiQL UPDATE with a true non-key predicate mutates the item
- ExecuteStatement - PartiQL DELETE with a false NOT begins_with predicate fails ConditionalCheckFailed
- ExecuteStatement - PartiQL DELETE with a true NOT begins_with predicate removes the item
- ExecuteStatement - PartiQL rejects a write WHERE clause that omits the primary key
- ExecuteStatement - PartiQL DELETE on a missing key with a non-key predicate is a silent no-op
- ExecuteStatement - PartiQL DELETE RETURNING ALL OLD * returns the deleted item
- ExecuteStatement - PartiQL DELETE RETURNING ALL OLD * on a missing item returns an empty Items list
- ExecuteStatement - PartiQL DELETE rejects RETURNING MODIFIED OLD * (only ALL OLD * is valid on DELETE)
- ExecuteStatement - PartiQL DELETE rejects RETURNING MODIFIED NEW * (only ALL OLD * is valid on DELETE)
- ExecuteStatement - PartiQL DELETE rejects RETURNING ALL NEW * with a 400, not a 500
- ExecuteStatement - PartiQL UPDATE RETURNING ALL OLD * returns the full prior item
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED OLD * returns only the changed attribute (old value, no key)
- ExecuteStatement - PartiQL UPDATE RETURNING ALL NEW * returns the full new item
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED NEW * returns only the changed attribute (new value, no key)
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED NEW * over a nested path returns only the changed leaf
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED OLD * over a nested path returns only the changed leaf at its old value
- ExecuteStatement - PartiQL UPDATE REMOVE RETURNING MODIFIED OLD * returns the removed attribute at its old value
- ExecuteStatement - PartiQL UPDATE REMOVE RETURNING MODIFIED NEW * returns an empty Items list
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED OLD * on a newly-set attribute returns an empty Items list
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED NEW * on a newly-set attribute returns the new value
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED NEW * on a list index returns only the changed element
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED OLD * on a list index returns only the prior element
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED NEW * on a non-zero list index returns only the changed element
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED OLD * on a non-zero list index returns the prior element
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED NEW * over multiple list indices returns a dense pack of the changed elements
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED OLD * over multiple list indices returns the prior elements densely
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED NEW * packs changed indices in ascending index order, not statement order
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED OLD * packs changed indices in ascending index order, not statement order
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED NEW * on an out-of-range list index (append) returns an empty Items list
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED OLD * on an out-of-range list index (append) returns an empty Items list
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED NEW * appending at exactly the list length returns the appended element
- ExecuteStatement - PartiQL UPDATE RETURNING MODIFIED OLD * appending at exactly the list length returns an empty Items list
- ExecuteStatement - PartiQL UPDATE REMOVE RETURNING MODIFIED OLD * on a list index returns the removed element at its old value
- ExecuteStatement - PartiQL UPDATE REMOVE RETURNING MODIFIED NEW * on a list index returns the shifted element, not an empty list
- ExecuteStatement - PartiQL UPDATE REMOVE RETURNING MODIFIED NEW * on the last list index returns an empty Items list
- ExecuteStatement - PartiQL UPDATE REMOVE RETURNING MODIFIED OLD * on the last list index returns the removed element
- ExecuteStatement - PartiQL UPDATE SET on a list index of an absent attribute is rejected, not auto-created
- ExecuteStatement - PartiQL UPDATE on a non-existent key fails ConditionalCheckFailed (PartiQL UPDATE is not an upsert)
- ExecuteStatement - PartiQL rejects a statement with syntax error
- ExecuteStatement - PartiQL rejects a reference to a non-existent table
- ExecuteTransaction - PartiQL transactional INSERT and UPDATE both succeed atomically
- ExecuteTransaction - PartiQL transaction rolls back on duplicate key INSERT
- ExecuteTransaction - PartiQL multiple INSERTs in one transaction
- ExecuteTransaction - PartiQL idempotent replay under the same ClientRequestToken does not double-apply
- ExecuteTransaction - PartiQL rejects a RETURNING clause inside a transaction statement
- ExecuteTransaction - PartiQL rejects empty TransactStatements
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transactions Tier 2 51 skipped
View these tests in the suite →- TransactWriteItems - basic functionality executes Put + Update + Delete atomically
- TransactWriteItems - basic functionality commits a Put whose string set carries an empty member
- TransactWriteItems - basic functionality succeeds when ConditionCheck condition is met
- TransactWriteItems - basic functionality rolls back entire transaction when ConditionCheck fails
- TransactWriteItems - basic functionality applies ConditionExpression on Put action
- TransactWriteItems - basic functionality applies ConditionExpression on Update action
- TransactWriteItems - basic functionality applies ConditionExpression on Delete action
- TransactWriteItems - basic functionality executes cross-table transaction (hashTableDef + compositeTableDef)
- TransactWriteItems - basic functionality supports idempotency via ClientRequestToken
- TransactWriteItems - basic functionality rejects same ClientRequestToken with different payload
- TransactWriteItems - basic functionality includes CancellationReasons in error when condition fails
- TransactWriteItems - basic functionality returns ALL_OLD item via ReturnValuesOnConditionCheckFailure
- TransactWriteItems - multiple items puts multiple items in one transaction
- TransactWriteItems - multiple items updates multiple items in one transaction
- TransactWriteItems - multiple items deletes multiple items in one transaction
- TransactWriteItems - validation rejects duplicate target items in same transaction
- TransactWriteItems - validation rejects empty TransactItems
- TransactWriteItems - validation rejects transaction on non-existent table
- TransactWriteItems - validation Put with a wrong-typed table key cancels with a ValidationError reason
- TransactWriteItems - validation Put with a non-scalar table key cancels with a ValidationError reason
- TransactWriteItems - validation Put with a wrong-typed index key cancels with a ValidationError reason
- TransactWriteItems - validation Put with a non-scalar index key cancels with a ValidationError reason
- TransactWriteItems - validation Update setting a wrong-typed index key cancels with a ValidationError reason
- TransactWriteItems - validation Update setting a non-scalar index key cancels with a ValidationError reason
- TransactWriteItems - validation Put with an empty-string table key is a top-level ValidationException
- TransactWriteItems - validation Put with an empty-string index key is a top-level ValidationException
- TransactWriteItems - validation Update setting an empty-string index key is a top-level ValidationException
- TransactWriteItems - validation Update with an empty-string Key is a top-level ValidationException
- TransactWriteItems - validation Delete with an empty-string Key is a top-level ValidationException
- TransactWriteItems - validation ConditionCheck with an empty-string Key is a top-level ValidationException
- TransactWriteItems - validation Update with a wrong-typed Key cancels with a ValidationError reason
- TransactWriteItems - validation Update with a non-scalar Key cancels with a ValidationError reason
- TransactWriteItems - validation Delete with a wrong-typed Key cancels with a ValidationError reason
- TransactWriteItems - validation Delete with a non-scalar Key cancels with a ValidationError reason
- TransactWriteItems - validation ConditionCheck with a wrong-typed Key cancels with a ValidationError reason
- TransactWriteItems - validation ConditionCheck with a non-scalar Key cancels with a ValidationError reason
- TransactWriteItems - validation Update with attribute_exists rejects non-existent item
- TransactWriteItems - validation Update with attribute_not_exists upserts on non-existent key
- TransactWriteItems - validation Update with comparison condition cancels on non-existent key; no ghost item
- TransactWriteItems - validation Update with combined attribute_exists + equality cancels on non-existent key; no ghost item
- TransactWriteItems - validation mixed transaction: one passing, one failing on non-existent cancels everything
- TransactWriteItems - ConditionExpression parens Put with per-condition parens succeeds on fresh key
- TransactWriteItems - ConditionExpression parens Update with full-expression wrap succeeds when condition holds
- TransactWriteItems - ConditionExpression parens Delete with non-redundant nested parens succeeds when condition holds
- TransactWriteItems - ConditionExpression parens ConditionCheck with per-condition parens passes when condition holds
- TransactWriteItems - ConditionExpression parens cancels transaction when any parenthesised condition fails
- TransactWriteItems - ConsumedCapacity charges 2 write capacity units per item
- TransactWriteItems - ConsumedCapacity: conditional, check, replay, cancel a passing conditional write costs the same 2 WCU/item as an unconditional one
- TransactWriteItems - ConsumedCapacity: conditional, check, replay, cancel a standalone ConditionCheck action costs 2 write capacity units
- TransactWriteItems - ConsumedCapacity: conditional, check, replay, cancel reports write capacity on the first call and read capacity on a same-token replay
- TransactWriteItems - ConsumedCapacity: conditional, check, replay, cancel a cancelled conditional transaction reports no consumed capacity
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error-messages Tier 3 35 skipped
View these tests in the suite →- Conditional check - exact error messages TransactionCanceledException message format
- PartiQL - exact error messages DELETE RETURNING MODIFIED OLD * - exact message
- PartiQL - exact error messages DELETE RETURNING ALL NEW * - exact message
- PartiQL - exact error messages DELETE RETURNING MODIFIED NEW * - exact message
- PartiQL - exact error messages ExecuteTransaction with a RETURNING member - exact message
- TransactWriteItems - exact error messages empty TransactItems: full minimum-length error
- TransactWriteItems - exact error messages > 100 actions: anchored regex on the constraint phrase
- TransactWriteItems - exact error messages duplicate target keys in same transaction: full multi-op error
- TransactWriteItems - exact error messages non-existent table: full ResourceNotFoundException message
- TransactWriteItems - exact error messages two failing actions: multi-reason TransactionCanceledException
- TransactWriteItems - exact error messages one passing, one failing: positional reason codes (None for the survivor)
- TransactWriteItems - exact error messages Put wrong-typed table key: cancelled with full ValidationError reason
- TransactWriteItems - exact error messages Put non-scalar table key: cancelled with full ValidationError reason
- TransactWriteItems - exact error messages Put wrong-typed index key: cancelled with full ValidationError reason
- TransactWriteItems - exact error messages Put non-scalar index key: cancelled with full ValidationError reason
- TransactWriteItems - exact error messages Update wrong-typed index key: cancelled with full ValidationError reason
- TransactWriteItems - exact error messages Update non-scalar index key: cancelled with full ValidationError reason
- TransactWriteItems - exact error messages Put empty-string table key: top-level ValidationException
- TransactWriteItems - exact error messages Put empty-string index key: top-level ValidationException
- TransactWriteItems - exact error messages Update empty-string index key: top-level ValidationException
- TransactWriteItems - exact error messages Update empty-string Key: top-level empty-value message
- TransactWriteItems - exact error messages Delete empty-string Key: top-level empty-value message
- TransactWriteItems - exact error messages ConditionCheck empty-string Key: top-level empty-value message
- TransactWriteItems - exact error messages Update wrong-typed Key: cancelled with schema-mismatch reason
- TransactWriteItems - exact error messages Update non-scalar Key: cancelled with schema-mismatch reason
- TransactWriteItems - exact error messages Delete wrong-typed Key: cancelled with schema-mismatch reason
- TransactWriteItems - exact error messages Delete non-scalar Key: cancelled with schema-mismatch reason
- TransactWriteItems - exact error messages ConditionCheck wrong-typed Key: cancelled with schema-mismatch reason
- TransactWriteItems - exact error messages ConditionCheck non-scalar Key: cancelled with schema-mismatch reason
- TransactWriteItems - exact error messages Put empty-binary item key: top-level empty-value message
- TransactWriteItems - exact error messages Update empty-binary Key: top-level empty-value message
- TransactWriteItems - exact error messages Delete empty-binary Key: top-level empty-value message
- TransactWriteItems - exact error messages ConditionCheck empty-binary Key: top-level empty-value message
- TransactWriteItems - exact error messages Put empty-binary index key: top-level ValidationException
- TransactWriteItems - exact error messages Update empty-binary index key: top-level ValidationException
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streams Tier 2 unsupported
View these tests in the suite →- DynamoDB Streams - basic table with StreamSpecification has LatestStreamArn in DescribeTable
- DynamoDB Streams - basic table StreamSpecification.StreamEnabled is true
- DynamoDB Streams - basic table StreamSpecification.StreamViewType matches what was requested
- DynamoDB Streams - basic ListStreams returns the stream for our table
- DynamoDB Streams - basic ListStreams with TableName filter returns only our table's stream
- DynamoDB Streams - basic DescribeStream returns stream status ENABLED or ENABLING
- DynamoDB Streams - basic DescribeStream returns at least one shard
- DynamoDB Streams - basic each shard has a ShardId
- DynamoDB Streams - basic TRIM_HORIZON returns a valid iterator string
- DynamoDB Streams - basic LATEST returns a valid iterator string
- DynamoDB Streams - basic GetRecords after PutItem contains the new image (INSERT event)
- DynamoDB Streams - basic INSERT record has eventName INSERT
- DynamoDB Streams - basic INSERT record dynamodb.Keys contains the item key
- DynamoDB Streams - basic INSERT record dynamodb.NewImage contains the full item
- DynamoDB Streams - basic GetRecords after UpdateItem contains both old and new images (MODIFY event)
- DynamoDB Streams - basic GetRecords after DeleteItem contains old image (REMOVE event)
- DynamoDB Streams - basic NEW_IMAGE view type records have NewImage but no OldImage on MODIFY
- DynamoDB Streams - basic KEYS_ONLY view type records have Keys but no NewImage or OldImage
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tags Tier 2 unsupported
View these tests in the suite →- Tags - basic adds tags to a table
- Tags - basic lists tags and verifies they match what was added
- Tags - basic adds additional tags and verifies all tags are present
- Tags - basic removes specific tag keys with UntagResource
- Tags - basic verifies removed tags are gone after untag
- Tags - basic overwrites an existing tag with the same key but different value
- Tags - validation rejects TagResource with an invalid ARN format
- Tags - validation rejects ListTagsOfResource with a non-existent ARN
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ttl Tier 2 unsupported
View these tests in the suite →- TTL - basic enables TTL on a table
- TTL - basic DescribeTimeToLive returns ENABLED status and correct attribute name after enabling
- TTL - basic DescribeTimeToLive returns DISABLED on a table with no TTL configured
- TTL - basic enables TTL with a different attribute name
- TTL - validation rejects empty attribute name
- TTL - validation rejects UpdateTimeToLive on non-existent table
- TTL - validation rejects DescribeTimeToLive on non-existent table
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backups Tier 2 unsupported
View these tests in the suite →- Continuous backups - PITR reports PITR DISABLED by default
- Continuous backups - PITR enabling PITR transitions PointInTimeRecoveryStatus to ENABLED
- On-demand backups - lifecycle and restore CreateBackup → DescribeBackup → ListBackups → DeleteBackup
- On-demand backups - lifecycle and restore RestoreTableFromBackup initiates a restore into a new table
- On-demand backups - lifecycle and restore DescribeBackup on a deleted backup throws BackupNotFoundException
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limits Tier 3 4 skipped
View these tests in the suite →- TransactWriteItems limits TransactWriteItems with exactly 100 Put actions succeeds
- TransactWriteItems limits TransactWriteItems with 101 actions fails with ValidationException
- TransactWriteItems limits TransactWriteItems total item size approaching 4MB succeeds
- TransactWriteItems limits TransactWriteItems total item size over 4MB fails with ValidationException
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account Tier 2 unsupported
View these tests in the suite →- Account reads - DescribeLimits, DescribeEndpoints DescribeLimits returns positive account and table capacity limits
- Account reads - DescribeLimits, DescribeEndpoints DescribeEndpoints returns at least one endpoint with an address
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contributorInsights Tier 2 unsupported
View these tests in the suite →- Contributor insights - enable/describe/list reports DISABLED by default
- Contributor insights - enable/describe/list enabling transitions the status and lists the table
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export Tier 2 unsupported
View these tests in the suite →- Export and import - S3 ExportTableToPointInTime initiates an export and reports it
- Export and import - S3 ImportTable ingests S3 data into a new table
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resourcePolicy Tier 2 unsupported
View these tests in the suite →- Resource policies - Put/Get/Delete GetResourcePolicy on a table with no policy throws PolicyNotFoundException
- Resource policies - Put/Get/Delete Put then Get round-trips the policy, and Delete removes it
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kinesis Tier 2 unsupported
View these tests in the suite →- Kinesis streaming destination enables a streaming destination and reports it via Describe