This doc describes a new extensible query optimization framework that resolves many of the shortcomings of the EXODUS and Volcano optimizer generators. In addition to extensibility, dynamic programming, and memorization based on and extended from the EXODUS and Volcano prototypes, this new optimizer provides (i) manipulation of operator arguments using rules or functions, (ii) operators that are both logical and physical for predicates etc., (iii) schema-specific rules for materialized views,

F1 Query is a stand-alone, federated query processing platform that executes SQL queries against data stored in different filebased formats as well as different storage systems at Google (e.g., Bigtable, Spanner, Google Spreadsheets, etc.). F1 Query eliminates the need to maintain the traditional distinction between different types of data processing workloads by simultaneously supporting: (i) OLTP-style point queries that affect only a few records; (ii) low-latency OLAP querying of large ...

{ela} sql 通用SQL到Elasticsearch DSL查询转换器。 专为设计 地位 实验性-加入我们，骇客入侵！ 安装 npm install elasql 用法 const convert = require('elasql').convert convert('SELECT id,name FROM shop WHERE shop_id BETWEEN 5 AND 10 AND type = "cat"') 输出 { "query": { "bool": { "must": [ { "match": { "type": "cat" } } ], "must_not": [], "filter": [ {

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