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Zhang et al., 2020 - Google Patents

Selectivity estimation for relation-tree joins

Zhang et al., 2020

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Document ID
8890587925056056940
Author
Zhang C
Lu J
Publication year
Publication venue
Proceedings of the 32nd International Conference on Scientific and Statistical Database Management

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Snippet

Estimating the join selectivity is a crucial problem in many aspects of query processing, such as query optimization and query refinement. Selectivity estimation has been extensively studied for the relational joins in SQL queries and structural joins in path-oriented queries …
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Classifications

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    • G06F17/30386Retrieval requests
    • G06F17/30424Query processing
    • G06F17/30533Other types of queries
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
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    • G06F17/30486Unary operations; data partitioning operations
    • G06F17/30489Aggregation and duplicate elimination
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