query processing module

基本解釋

This paper describes the design and implementation of query optimization for kernal module of query processing in RXDB.
本文重點(diǎn)介紹RXDB查詢処理的核心模塊——查詢優(yōu)化的設(shè)計(jì)和實(shí)現(xiàn)。
SQL: A query is used to access the database language Affairs stream: data entering the module may have multiple paths for processing.
一種用於訪問查詢數(shù)據(jù)庫(kù)的語言事務(wù)流：數(shù)據(jù)進(jìn)入模塊後可能有多種路逕進(jìn)行処理。
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As a module embedded in reactive power optimization software, the engine performs the key functions of parsing and processing SQL, data access, data organization and query management.
該引擎作爲(wèi)一個(gè)模塊嵌在無功優(yōu)化軟件中，主要完成解釋執(zhí)行SQL語句、數(shù)據(jù)存取、數(shù)據(jù)組織及查詢処理等功能。