DE3750492D1 - Datenbanksystem für Parallelprozessor. - Google Patents

Datenbanksystem für Parallelprozessor.

Info

Publication number
DE3750492D1
DE3750492D1 DE3750492T DE3750492T DE3750492D1 DE 3750492 D1 DE3750492 D1 DE 3750492D1 DE 3750492 T DE3750492 T DE 3750492T DE 3750492 T DE3750492 T DE 3750492T DE 3750492 D1 DE3750492 D1 DE 3750492D1
Authority
DE
Germany
Prior art keywords
database system
parallel processor
processor
parallel
database
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE3750492T
Other languages
English (en)
Other versions
DE3750492T2 (de
Inventor
Brewster Kahle
Craig W Stanfill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thinking Machines Corp
Original Assignee
Thinking Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thinking Machines Corp filed Critical Thinking Machines Corp
Application granted granted Critical
Publication of DE3750492D1 publication Critical patent/DE3750492D1/de
Publication of DE3750492T2 publication Critical patent/DE3750492T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/901—Indexing; Data structures therefor; Storage structures
    • G06F16/9014—Indexing; Data structures therefor; Storage structures hash tables
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/24—Querying
    • G06F16/245—Query processing
    • G06F16/2453—Query optimisation
    • G06F16/24532—Query optimisation of parallel queries
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
    • G06F16/33—Querying
    • G06F16/332—Query formulation
    • G06F16/3325—Reformulation based on results of preceding query
    • G06F16/3326—Reformulation based on results of preceding query using relevance feedback from the user, e.g. relevance feedback on documents, documents sets, document terms or passages
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/903—Querying
    • G06F16/90335—Query processing
    • G06F16/90339—Query processing by using parallel associative memories or content-addressable memories
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99931—Database or file accessing
    • Y10S707/99933—Query processing, i.e. searching
    • Y10S707/99935—Query augmenting and refining, e.g. inexact access
DE3750492T 1986-06-25 1987-06-19 Datenbanksystem für Parallelprozessor. Expired - Lifetime DE3750492T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/878,532 US4870568A (en) 1986-06-25 1986-06-25 Method for searching a database system including parallel processors

Publications (2)

Publication Number Publication Date
DE3750492D1 true DE3750492D1 (de) 1994-10-13
DE3750492T2 DE3750492T2 (de) 1995-03-16

Family

ID=25372216

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3750492T Expired - Lifetime DE3750492T2 (de) 1986-06-25 1987-06-19 Datenbanksystem für Parallelprozessor.

Country Status (5)

Country Link
US (1) US4870568A (de)
EP (1) EP0251594B1 (de)
JP (1) JPH083817B2 (de)
CA (1) CA1282496C (de)
DE (1) DE3750492T2 (de)

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Also Published As

Publication number Publication date
JPS6359626A (ja) 1988-03-15
JPH083817B2 (ja) 1996-01-17
EP0251594A3 (de) 1991-10-09
DE3750492T2 (de) 1995-03-16
US4870568A (en) 1989-09-26
CA1282496C (en) 1991-04-02
EP0251594B1 (de) 1994-09-07
EP0251594A2 (de) 1988-01-07

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Legal Events

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