Amazon Technologies, Inc.

Other

Fahad Ahmed

Wei Xiao

Usman Ahmed Shami

Andrew Desmond Budiman

Jeffrey Hocheng Nieh

Stefano Stefani

Akshat Vig

David Craig Yanacek

Somasundaram Perianayagam

Vaibhav Jain

John Richard Houlihan

Rashmi Krishnaiah Setty

Joon Ahn

Kapil Singh

Fehmi Dogus Ertemur

Padma Malligarjunan

Geetika Vasudeo

A glide and leap system for fishing lure includes a floating lure, a channel, a first weight, and a compression spring. The floating lure includes a head section and a tail section as the head section and the tail section are oppositely positioned of each other about a transverse plane of the floating lure. The channel is internally integrated into the head section and concentrically positioned along a sagittal plane of the floating lure. The channel is angularly oriented from a frontal plane of the floating lure to the transverse plane at an acute angle. The compression spring is positioned within the channel and positioned adjacent to the transverse plane. The first weight is adjacently positioned to the compression spring and the frontal plane as the first weight is slidably positioned within the channel.

Glide and leap system for fishing lure

Chimera shad glide bait

Glide bait arrangement of a weight, a spring, and a head ring

Male connector for a flexible fishing lure with an interchangeable swimbait

Systems and methods are provided to implement a key overloaded database table that stores multiple instances of a data item using different key attributes to facilitate different types of queries. In embodiments, different partition or sorting keys are specified in different table facets schemas, for the table or for individual items. In embodiments, when an item is inserted into the table, the insertion operation copies values from appropriate attributes of the item into overloaded partition key and sort key fields of the instances to be inserted. In embodiments, when a primary instance of an item is updated, the secondary instances are found using facet schemas stored with the primary instance and overwritten in asynchronous fashion to reflect the state of the primary instance. Advantageously, the disclosed key overloading technique reduces the need for separate index objects for the table and simplifies query planning for the table.

Storing multiple instances of data items to implement key overloading in database tables

A connector for a flexible fishing lure with an interchangeable swimbait is an apparatus used as a fastener for a modular fishing lure. The apparatus includes a lure body, a lure tail, a male connector, and a female connector. The lure body and the lure tail mirror the body and the tail of a live bait. The lure tail is made of soft-plastic material. The lure body is removably connected with the lure body with the male connector and the female connector. The male connector is integrated with the lure tail and the female connector is integrated with the lure body. Moreover, the lure tail is molded around a stabilizing frame and at least one panel of the male connector. The male connector latches with the female connector and is easily separated so that the lure tail may be interchanged.

Connector for a flexible fishing lure with an interchangeable swimbait

Systems and methods are provided to implement a database system configured to return the state of a data item upon failure of a condition check on the data item during a conditional write. In embodiments, a write request may specify an indicator to return the item state upon condition failure. The request may specify multiple database operations to execute as a transaction, where failure of a single condition check will cause the entire transaction to fail and an item state causing the failure to be returned. The returned state of the data item may include a selection of the item's attributes specified by the request. Advantageously, these features allow a client to easily obtain the precise cause of a write's failure. Moreover, because the item state is returned only when a conditional write fails and only when requested, the response size of most write requests remains unchanged.

Database interface to obtain item state on conditional operation failure

A client application may interact with a database service using a data interchange format with limited support for database data types or query representations. A map may be supported in the interchange format as a collection of name-value pairs. A database query may be parsed to form an abstract syntax tree. From the abstract syntax tree, a hierarchy of nested maps may be formed to represent the query, based on schemas mapping from regions of the abstract syntax tree to maps in the interchange format.

Query transmission in type-limited interchange formats

A repository of key-value data may store a first object value having an internal structure of a hierarchy of sub-objects. The repository may receive a request to modify the first object, expressed as a projection of locations in the object to be updated and a function that, upon evaluation, returns values to be used to update the projected locations of the object. The repository may determine that the locations specified by the projections correspond to non-overlapping regions of the object and, based on the determination, update the object using the results of evaluating the function.

Projection-based updates

A database may store an object comprising a hierarchy of sub-objects. Numeric identifiers may be assigned to names of the sub-objects and used in place of the names when writing the object to storage. Scalar values may be prefixed with length indicators. Collections may be prefixed with counts indicative of the number of elements in the corresponding collection. A portion of the object may be retrieved from storage by traversing a path from the root of the hierarchy to the desired portion. Length and count information may be used to skip over portions of the object during the traversal.

Nested object serialization and deserialization

Growing community of inventors

Santa Clara, CA, United States of America

Fahad Ahmed