Parsing and compiling data system queries

• US 9,619,210 B2
• Filed: 05/14/2016
• Issued: 04/11/2017
• Est. Priority Date: 05/14/2015
• Status: Active Grant

• Current Assignee: Deephaven Data Labs, LLC
• Original Assignee: Walleye Software LLC
• Inventors: Wright, Charles, Kent, IV, David R., Caudy, Ryan, Zeldis, Mark, Teodorescu, Radu
• Primary Examiner(s): APONTE, FRANCISCO JAVIER
• Application Number:
  US15/154,985
• Publication Number:
  US 20160335057A1
• Time in Patent Office: 332 Days
• Field of Search: 717106, 717143
• CPC Class Codes: G06F 11/1451 by selection of backup contents
• CPC Class Codes: G06F 11/1464 for networked environments
• CPC Class Codes: G06F 11/1469 Backup restoration techniques
• CPC Class Codes: G06F 12/0261 using reference counting
• CPC Class Codes: G06F 12/084 with a shared cache
• CPC Class Codes: G06F 12/1483 using an access-table, e.g. matrix or list
• CPC Class Codes: G06F 15/17331 Distributed shared memory [DSM], e.g. remote direct memory access [RDMA]
• CPC Class Codes: G06F 16/113 Details of archiving lifecycle management in storage systems G06F3/0649; backup systems G06F11/1446
• CPC Class Codes: G06F 16/144 Query formulation
• CPC Class Codes: G06F 16/162 Delete operations erasing in storage systems G06F3/0652
• CPC Class Codes: G06F 16/215 Improving data quality; Data cleansing, e.g. de-duplication, removing invalid entries or correcting typographical errors
• CPC Class Codes: G06F 16/22 Indexing; Data structures therefor; Storage structures
• CPC Class Codes: G06F 16/221 Column-oriented storage; Management thereof
• CPC Class Codes: G06F 16/2228 Indexing structures
• CPC Class Codes: G06F 16/2237 Vectors, bitmaps or matrices
• CPC Class Codes: G06F 16/2246 Trees, e.g. B+trees
• CPC Class Codes: G06F 16/2255 Hash tables
• CPC Class Codes: G06F 16/2264 Multidimensional index structures
• CPC Class Codes: G06F 16/2272 Management thereof
• CPC Class Codes: G06F 16/2282 Tablespace storage structures; Management thereof
• CPC Class Codes: G06F 16/2291 : User-Defined Types; Storage management thereof
• CPC Class Codes: G06F 16/23 : Updating
• CPC Class Codes: G06F 16/2308 : Concurrency control transaction processing G06F9/466
• CPC Class Codes: G06F 16/2358 : Change logging, detection, and notification replication G06F16/27
• CPC Class Codes: G06F 16/2365 : Ensuring data consistency and integrity
• CPC Class Codes: G06F 16/2372 : Updates performed during offline database operations
• CPC Class Codes: G06F 16/2379 : Updates performed during online database operations; commit processing
• CPC Class Codes: G06F 16/242 : Query formulation
• CPC Class Codes: G06F 16/2428 : Query predicate definition using graphical user interfaces, including menus and forms G06F16/2423 takes precedence
• CPC Class Codes: G06F 16/245 : Query processing
• CPC Class Codes: G06F 16/2453 : Query optimisation
• CPC Class Codes: G06F 16/24534 : Query rewriting; Transformation
• CPC Class Codes: G06F 16/24535 : of sub-queries or views
• CPC Class Codes: G06F 16/24537 : of operators
• CPC Class Codes: G06F 16/24539 : using cached or materialised query results
• CPC Class Codes: G06F 16/2455 : Query execution
• CPC Class Codes: G06F 16/24553 : of query operations
• CPC Class Codes: G06F 16/2456 : Join operations
• CPC Class Codes: G06F 16/24561 : Intermediate data storage techniques for performance improvement
• CPC Class Codes: G06F 16/2457 : with adaptation to user needs
• CPC Class Codes: G06F 16/24575 : using context
• CPC Class Codes: G06F 16/248 : Presentation of query results
• CPC Class Codes: G06F 16/254 : Extract, transform and load [ETL] procedures, e.g. ETL data flows in data warehouses
• CPC Class Codes: G06F 16/27 : Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
• CPC Class Codes: G06F 16/278 : Data partitioning, e.g. horizontal or vertical partitioning
• CPC Class Codes: G06F 16/285 : Clustering or classification
• CPC Class Codes: G06F 16/9024 : Graphs; Linked lists G06F16/9027 takes precedence
• CPC Class Codes: G06F 16/907 : Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G06F 16/951 : Indexing; Web crawling techniques
• CPC Class Codes: G06F 16/9535 : Search customisation based on user profiles and personalisation
• CPC Class Codes: G06F 16/9538 : Presentation of query results
• CPC Class Codes: G06F 16/9566 : URL specific, e.g. using aliases, detecting broken or misspelled links
• CPC Class Codes: G06F 16/9574 : of access to content, e.g. by caching
• CPC Class Codes: G06F 17/40 : Data acquisition and logging for input to computer G06F3/00
• CPC Class Codes: G06F 21/00 : Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
• CPC Class Codes: G06F 21/6209 : to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
• CPC Class Codes: G06F 2201/805 : Real-time
• CPC Class Codes: G06F 2201/84 : Using snapshots, i.e. a logical point-in-time copy of the data
• CPC Class Codes: G06F 2212/1052 : Security improvement
• CPC Class Codes: G06F 2212/154 : Networked environment
• CPC Class Codes: G06F 2212/163 : Server or database system
• CPC Class Codes: G06F 2212/60 : Details of cache memory
• CPC Class Codes: G06F 3/0481 : based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: G06F 3/0482 : Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/0483 : Interaction with page-structured environments, e.g. book metaphor
• CPC Class Codes: G06F 3/04847 : Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• CPC Class Codes: G06F 3/0485 : Scrolling or panning
• CPC Class Codes: G06F 3/04895 : Guidance during keyboard input operation, e.g. prompting
• CPC Class Codes: G06F 3/0605 : by facilitating the interaction with a user or administrator
• CPC Class Codes: G06F 3/0656 : Data buffering arrangements
• CPC Class Codes: G06F 3/067 : Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: G06F 40/117 : Tagging; Marking up details of markup languages G06F40/143; Designating a block; Setting of attributes style sheets, e.g. eXtensible Stylesheet Language Transformation [XSLT], G06F40/154
• CPC Class Codes: G06F 40/134 : Hyperlinking
• CPC Class Codes: G06F 40/166 : Editing, e.g. inserting or deleting
• CPC Class Codes: G06F 40/174 : Form filling; Merging
• CPC Class Codes: G06F 40/177 : of tables; using ruled lines
• CPC Class Codes: G06F 40/18 : of spreadsheets form-filling G06F40/174
• CPC Class Codes: G06F 40/183 : Tabulation, i.e. one-dimensional positioning
• CPC Class Codes: G06F 40/216 : using statistical methods
• CPC Class Codes: G06F 40/274 : Converting codes to words; Guess-ahead of partial word inputs
• CPC Class Codes: G06F 8/30 : Creation or generation of source code
• CPC Class Codes: G06F 8/41 : Compilation
• CPC Class Codes: G06F 8/427 : Parsing
• CPC Class Codes: G06F 8/60 : Software deployment
• CPC Class Codes: G06Q 40/04 : Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
• CPC Class Codes: H04L 12/18 : for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 51/046 : Interoperability with other network applications or services
• CPC Class Codes: H04L 51/212 : using filtering or selective blocking
• CPC Class Codes: H04L 61/5069 : for group communication, multicast communication or broadcast communication
• CPC Class Codes: H04L 63/101 : Access control lists [ACL]
• CPC Class Codes: H04L 63/102 : Entity profiles
• CPC Class Codes: H04L 67/01 : Protocols
• CPC Class Codes: H04L 67/1001 : for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/141 : Setup of application sessions admission control or resource allocation in data switching networks H04L47/70
• CPC Class Codes: H04L 67/34 : involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416
• CPC Class Codes: H04L 67/56 : Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/566 : Grouping or aggregating service requests, e.g. for unified processing
• CPC Class Codes: H04L 67/568 : Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/5681 : Pre-fetching or pre-delivering data based on network characteristics
• CPC Class Codes: H04L 69/16 : Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]

Abstract

Described are methods, systems and computer readable media for parsing and compiling data system queries.

Claims

1. A system for parsing, generating code and compiling computer data system query language code, the system comprising:

one or more hardware processors coupled to a nontransitory computer readable medium having stored thereon software instructions that, when executed by the one or more processors, cause the one or more processors to perform operations including;

obtaining, at the one or more hardware processors, computer data system query language code from an electronic computer readable data storage;

parsing, at the one or more hardware processors, the computer data system query language code to generate a computer data system query language parsed code structure;

resolving, at the one or more hardware processors, a type of one or more columns represented in the parsed code structure based on a determined context of the one or more columns;

inserting, at the one or more hardware processors, resolved types into the parsed code structure;

generating, at the one or more hardware processors, computer programming language code from the computer data system query language parsed code structure;

determining, at the one or more hardware processors, whether precompiled code corresponding to the generated computer programming language code is available in a precompiled code repository stored in the electronic computer readable data storage;

when precompiled code is available in the precompiled code repository, loading, at the one or more hardware processors, the precompiled code;

when precompiled code is not available in the precompiled code repository;

compiling, at the one or more hardware processors, the computer programming language code to generate compiled computer programming language code; and

loading, at the one or more hardware processors, the compiled computer programming language code;

instantiating, at the one or more hardware processors, the loaded precompiled code or the compiled computer programming language code; and

executing, at the one or more hardware processors, the instantiated code to perform a query operation corresponding to the computer data system query language code,

wherein determining whether precompiled code corresponding to the programming language code is available in a precompiled code repository comprises;

generating a token representing the generated computer programming language code; and

comparing the token to one or more repository tokens in the precompiled code repository corresponding to precompiled code units.

2. The system of claim 1, wherein the computer data system query language code includes one or more instructions of a data system query language.

3. The system of claim 1, wherein the operations further include identifying a source of columns or query scope variables for substitution and use in computer programming language code.

4. The system of claim 1, wherein the operations further include persisting the compiled computer programming language code by storing the precompiled code in the precompiled code repository.

5. The system of claim 1,

wherein the token includes a result of a hash function of one or more attributes of the computer programming language code;

and

wherein determining whether precompiled code corresponding to the programming language code is available in a precompiled code repository further comprises;

based on the comparing, determining whether the token matches any of the repository tokens.

6. The system of claim 1, wherein the inserting includes inserting references to data objects and variables that have been made available to the query language code.

7. The system of claim 1, wherein the operations further include repeating the resolving and inserting until any unresolved columns or variables have been resolved.

8. A method for parsing, generating code and compiling computer data system query language code, the method comprising:

obtaining, at a hardware processor, computer data system query language code from an electronic computer readable data storage;

parsing, at the hardware processor, the computer data system query language code to generate a computer data system query language parsed code structure;

resolving, at the hardware processor, a type of one or more columns represented in the parsed code structure based on a determined context of the one or more columns;

inserting, at the hardware processor, resolved types into the parsed code structure;

generating, at the hardware processor, computer programming language code from the computer data system query language parsed code structure;

determining, at the hardware processor, whether precompiled code corresponding to the generated computer programming language code is available in a precompiled code repository stored in the electronic computer readable data storage;

when precompiled code is available in the precompiled code repository, loading, at the hardware processor, the precompiled code;

when precompiled code is not available in the precompiled code repository;

compiling, at the hardware processor, the computer programming language code to generate compiled computer programming language code; and

loading, at the hardware processor, the compiled computer programming language code;

instantiating, at the hardware processor, the loaded precompiled code or the compiled computer programming language code; and

executing, at the hardware processor, the instantiated code to perform a query operation corresponding to the computer data system query language code,

wherein determining whether precompiled code corresponding to the programming language code is available in a precompiled code repository comprises;

generating a token representing the generated computer programming language code; and

comparing the token to one or more repository tokens in the precompiled code repository corresponding to precompiled code units.

9. The method of claim 8, wherein the computer data system query language code includes one or more instructions of a data system query language.

10. The method of claim 8, further comprising identifying a source of columns or query scope variables for substitution and use in computer programming language code.

11. The method of claim 8, further comprising persisting the compiled computer programming language code by storing the precompiled code in the precompiled code repository.

12. The method of claim 8,

wherein the token includes a result of a hash function of one or more attributes of the computer programming language code;

and

wherein determining whether precompiled code corresponding to the programming language code is available in a precompiled code repository further comprises;

based on the comparing, determining whether the token matches any of the repository tokens.

13. The method of claim 8, wherein the inserting includes inserting references to data objects and variables that have been made available to the query language code.

14. The method of claim 8, further comprising repeating the resolving and inserting until any unresolved columns or variables have been resolved.

15. A nontransitory computer readable medium having stored thereon software instructions that, when executed by one or more processors, cause the one or more processors to perform operations including:

obtaining, at the one or more hardware processors, computer data system query language code from an electronic computer readable data storage;

parsing, at the one or more hardware processors, the computer data system query language code to generate a computer data system query language parsed code structure;

resolving, at the one or more hardware processors, a type of one or more columns represented in the parsed code structure based on a determined context of the one or more columns;

inserting, at the one or more hardware processors, resolved types into the parsed code structure;

generating, at the one or more hardware processors, computer programming language code from the computer data system query language parsed code structure;

determining, at the one or more hardware processors, whether precompiled code corresponding to the generated computer programming language code is available in a precompiled code repository stored in the electronic computer readable data storage;

when precompiled code is available in the precompiled code repository, loading, at the one or more hardware processors, the precompiled code;

when precompiled code is not available in the precompiled code repository;

compiling, at the one or more hardware processors, the computer programming language code to generate compiled computer programming language code; and

loading, at the one or more hardware processors, the compiled computer programming language code;

instantiating, at the one or more hardware processors, the loaded precompiled code or the compiled computer programming language code; and

executing, at the one or more hardware processors, the instantiated code to perform a query operation corresponding to the computer data system query language code,

wherein determining whether precompiled code corresponding to the programming language code is available in a precompiled code repository comprises;

generating a token representing the generated computer programming language code; and

comparing the token to one or more repository tokens in the precompiled code repository corresponding to precompiled code units.

16. The nontransitory computer readable medium of claim 15, wherein the computer data system query language code includes one or more instructions of a data system query language.

17. The nontransitory computer readable medium of claim 15, wherein the operations further include identifying a source of columns or query scope variables for substitution and use in computer programming language code.

18. The nontransitory computer readable medium of claim 15, wherein the operations further include persisting the compiled computer programming language code by storing the precompiled code in the precompiled code repository.

19. The nontransitory computer readable medium of claim 15,

wherein the token includes a result of a hash function of one or more attributes of the computer programming language code;

and

wherein determining whether precompiled code corresponding to the programming language code is available in a precompiled code repository further comprises;

based on the comparing, determining whether the token matches any of the repository tokens.

20. The nontransitory computer readable medium of claim 15, wherein the inserting includes inserting references to data objects and variables that have been made available to the query language code, and wherein the operations further include repeating the resolving and inserting until any unresolved columns or variables have been resolved.