Oom Sam spread out the document which Trent had handed him upon a tree-stump, and explained. His Majesty nodded more affably. View in context Ostrinski asked where he lived, offering to walk in that direction; and so he had to explain once more that he was without a home. View in con...
Don't say, for example, 'Let me explain you about Jackie'. You can use explain with a that-clause to say that someone tells someone else the reason for something. I explained that I was trying to write a book. Collins COBUILD English Usage © HarperCollins Publishers 1992, 2004, 2011...
1.再谈索引 前面我出了一篇关于索引的博客MySQL系列-B+Tree索引详解,索引太重要了可以多谈谈,简单来说索引是排好序的快速查找的数据结构。一般来说一张表建立的索引不要超过5个,数据规模没有达到百万级别,建不建索引也没太大区别。 2.索引的优势 索引具备两个优势 一 、可以快速查找 二、他已经按建立索引的字...
derivedN: The row refers to the derived table result for the row with an id value of N. A derived table may result, for example, from a subquery in the FROM clause. subqueryN: The row refers to the result of a materialized subquery for the row with an id value of N. partitions (...
This type of join is usually used for queries with the EXISTS clause. When you view execution plans of hash join operations, you also need to focus on the child nodes. hash cond: the join condition. Example: hash cond(tmp.a=tmp1.b). hash key: the key that is used for hash ...
ANALYZE supports only the TREE output format. We illustrate the behavior described in the second point here, re-using the last EXPLAINANALYZE statement from the previous example: mysql> SET @@explain_format=JSON; Query OK, 0 rows affected (0.00 sec) mysql> SELECT @@explain_...
frominterpret.glassboximportExplainableBoostingClassifierebm=ExplainableBoostingClassifier()ebm.fit(X_train,y_train)# or substitute with LogisticRegression, DecisionTreeClassifier, RuleListClassifier, ...# EBM supports pandas dataframes, numpy arrays, and handles "string" data natively. ...
If mimicry is considered the sincerest form of flattery, which is an example of Mullerian mimicry? a. A species of an owl with feathers colored that allows them to blend in with the bark of a tree. b. Two species of flys that both resemble a housefly. c. ...
You can see when an antijoin transformation is performed for a given query by checking the Message column from SHOW WARNINGS following execution of EXPLAIN, or in the output of EXPLAIN FORMAT=TREE. Note An antijoin is the complement of a semijoin table_a JOIN table_b ON condition. The...
In fact, it's not a bug that occurs only in debug builds. In release-builds, `explain format=tree for conn` at sync point BEFORE_RESET_QUERY_PLAN gives incorrect query plan. Take the same query in the test case as an example, the correct plan (from explain <query>) is: ``` ->...