Sql Lateral View

The general syntax for using these. The syntax is correct but the result is apparently not! What happened? We replaced the WHERE clause condition of e. At the end of the talk what I would like is: for developers to understand SQL, and how ORM executes SQL better to discover fun SQL things that they might not know, and what can or can't be used with simple ORMs call and if it's not (yet) in the ORM, how can I execute it beautifully. Base isolation has limitations and is subject to special conditions, such as the need for utilities to accommodate large lateral movement where they enter a building above or below ground. Referential integrity involves maintaining consistency in a multitable SQL database. [1] LATERAL is not supported as of SQL Server 2014 but [CROSS|OUTER] APPLY can be used for the same effect. general lateral view - Flickr. 3, SchemaRDD will be renamed to DataFrame. 8 thoughts on " SQL CROSS APPLY, OUTER APPLY and LATERAL Oracle Database 12C release 1 (12. ) LATERAL can also precede a function-call FROM item, but in this case it is a noise word, because the function expression can refer to earlier FROM items in any case. This is similar to a LATERAL VIEW in HiveQL. Country = S. Pgs 312-313. In the Lateral View section of that post they go through some examples and discuss how a query is transformed with the ANSI outer join syntax. One of the less mainstream features in SQL is the array type (or nested collections). 7, we have enhanced the optimizer so that derived tables and views are handled more consistently. August 30, 2014, 4:34am #1. Of course the implementation of unnest functions and the lateral join operation against them are key to a great success, as we saw in this article. This makes them convenient to. Support for hive compatible LATERAL VIEW. Sometimes, its is even faster to split an SQL statement with an OR in the WHERE condition into two separate statements. Anyway, here is SQL that avoids SQL, just for completeness here, but let's forget about this and review subqueries. Just for the demo, we also have created a text parser. Of course the implementation of unnest functions and the lateral join operation against them are key to a great success, as we saw in this article. A view is actually a composition of a table in the form of a predefined SQL query. SQL injection is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution (e. Lateral view is used in conjunction with user-defined "table generating functions"(UDTF) such as explode(), parse_url_tuple. The Department of Administrative Services ' (DAS) Platform Services Division is seeking a strong collaborative SQL DBA Technical Analyst 3 (ITA 3) to join the Bureau of Enterprise Systems and Technology (BEST) team, with an ability to learn and grow. Udemy CEO Dennis Yang shared his own point of view on workplace automation and AI in this piece. Lateral view decorrelation(VW_DCL) causes wrong results with rownum Posted on February 16, 2019 by Sayan Malakshinov Posted in 12c , bug , CBO , oracle , query optimizing , rownum , troubleshooting. Here are the two. In many cases, a left outerjoined lateral view can be merged and the ANSI left (or right) outerjoin can be expressed entirely in terms of Oracle native left outerjoin operator. com, India's No. For example: select * from table1 t1 cross join lateral ( select * from t2 where t1. The landmark book "Advanced Oracle SQL Tuning The Definitive Reference" is filled with valuable information on Oracle SQL Tuning. For example: select * from table1 t1 cross join lateral ( select * from t2 where t1. Migrating From Hive. This chapter describes how to create and manage views. a LATERAL FROM-clause item. 3, SchemaRDD will be renamed to DataFrame. Your SQL will be vendor independent (like you would ever want to move away from Oracle) and your statements are more self-documenting, relieving you of the duty of documenting your statements. To make your SQL editing experience, Hue comes with one of the best SQL autocomplete on the planet. sql,sas,transpose. This allows saner semantics for cases where multiple set-returning functions are present. We'll use an inline view with a "connect by level" query. based on the structure of the statement and the position of the cursor. general lateral view - Flickr. Codd, an IBM research employee, published "A Relational Model of Data for Large Shared. However, I see results are same for CROSS APPLY and INNER JOIN, OUTER APPLY and LEFT / RIGHT OUTER JOIN. In contrast, Database Replay does not need you to provide SQL statements. 0 / 2019-06-24. They are the decision makers and adjust to environments that are always changing. SQL injection is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution (e. CompanyName FROM Customer C FULL JOIN Supplier S ON C. A view contains rows and columns, just like a real table. Udemy CEO Dennis Yang shared his own point of view on workplace automation and AI in this piece. When a table reference names a table that is the parent of a table inheritance hierarchy, the table reference produces rows of not only that table but all of its descendant tables, unless. Summary: in this tutorial, you will learn how to select data from multiple tables by using the PostgreSQL INNER JOIN clause. DH2i is helping customers to eliminate their network attack surfaces and get near-zero planned and unplanned downtime with our multi-platform Software Defined Perimeter and Smart Availability software. However, trying to understand the usage of the same. You can also define column names for tables that derive from subqueries. tried going through some links, but couldn't get complete picture. SQL Server 2005 introduced a built-in partitioning feature to horizontally partition a table with up to 1000 partitions in SQL Server 2008, and 15000 partitions in SQL Server 2012, and the data placement is handled automatically by SQL Server. PK resolves to the first "parent" with T. Lateral view is used to select other table columns with exploded columns. When you use the UNNEST relational operator, Drill infers the LATERAL keyword. How to combine multiple selects in one query. You will be working for the Manager of Data Services. 3 The View Editor 9. Here’s an explanation of why this bug occurred, and several different ways it can be resolved. explode() takes in an array as an input and outputs the elements of the array as separate rows. Background information can be found in Section 1. My hive table consists of subset of columns which contains concatenated values delimited by pipe or comma. A procedure branching control statement, which typically specifies a label to return control to. This makes the data appear as if from one table. With the prevalence of web and mobile applications. 1 Practical Considerations with Nonstructural Components. Since SQL joins appear to be set-based, the use of Venn diagrams to explain them seems, at first blush, to be a natural fit. SQL: inner, cross and self joins Understanding how table joins work is one of the key skills of a database beginner. All gists Back to GitHub. TopView allows users to access monitored data, alarms, and alarm history on both desktop clients and mobile devices. SQL_Optimizer. Views are generated based on user requirements. 3 PostgreSQL 2005[1] SQL Server SQLite [0] Undocumented. This is extremely useful for table-valued functions, which are also supported by jOOQ. Although this might be useful under some circumstances, it may cause suboptimal execution plans. 4 Modifying a View Using the Properties Palette You can add views to a database either from the Physical Schemas section of the MySQL Model page or from the EER Diagram. Emailed for a phone screen from a recruiter who described the job, then a HackerRank aptitude test (no prgramming) and finally a LogMeIn Video chat with two people, one a team lead software dev. For example pageAds, has two column pageid and adid_list: string pageid Array adid_list “front_page” [1, 2, 3] “contact_page” [3, 4, 5] Using following SQL sentence: SELECT. 1 DB2 LUW MySQL 11gR1[0] 12c Oracle 9. SQL injection is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution (e. Left and right outer joins retain values from one of the joined tables when no match is found in the other table. For added protection, back up the registry before you modify it. LastName, C. Let us take an. Top N Query and Fetch and offset Replacement to Rownum: With the release of Oracle Database 12c, Oracle has introduced this new SQL syntax to simplify fetching the first few rows. This part follows up the previous articles and is dedicated to SQL/XML functions. Learn client-side and server-side programming using SQL and PL/pgSQL Discover tips on implementing efficient database solutions Book Description. SQL Server 2005 introduced a built-in partitioning feature to horizontally partition a table with up to 1000 partitions in SQL Server 2008, and 15000 partitions in SQL Server 2012, and the data placement is handled automatically by SQL Server. Implement SQL-standard LATERAL subqueries. I'll explain those briefly to see how LATERAL can simplify a complicated SQL query. I recently reviewed a SQL query that was returning duplicate results. Applies to: Oracle Database - Enterprise Edition - Version 12. 1) Oracle 12c introduced the LATERAL inline view syntax, as well as CROSS APPLY and OUTER APPLY joins into the SELECT syntax. This is the structure of my table: TBL_CUSTOMER CustId string Cust_Resident_Country. View the solution for the problems with feel and good user interface; easily go through all questions and answers. 1 DB2 LUW MySQL 11gR1[0] 12c Oracle 9. SQL Server 2005 introduced a built-in partitioning feature to horizontally partition a table with up to 1000 partitions in SQL Server 2008, and 15000 partitions in SQL Server 2012, and the data placement is handled automatically by SQL Server. I can't see a no lateral view hint, and I couldn't see anything in the plan outline that looks relevant but you can hint to use an older optimizer environment, 11. A lateral view is something like a join on a table function, inner or outer join as the case may be. Alias SQL example: If your database tables need to have two or more columns with the same relationship to another table. Lateral joins are not so new, but still something not used that frequently and that I never had the chance do explore. (Without LATERAL, each sub-SELECT is evaluated independently and so cannot cross-reference any other FROM item. What the SQL?!? Lateral Joins¶ Today's "What the SQL?!?" features the keyword LATERAL. This article will show you, How to use the analytic function called PERCENT. APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse A constant, also known as a literal or a scalar value, is a symbol that represents a specific data value. 2 instance, it looks like there's a problem with the lateral view existing in the execution plan. Support for hive compatible LATERAL VIEW. I have learned that there is a new LATERAL keyword available in 12c Version. LATERAL Inline Views, CROSS APPLY and OUTER APPLY Joins in Oracle Database 12c Release 1 (12. col1 -- Only allowed because of lateral ) sub. The syntax is correct but the result is apparently not! What happened? We replaced the WHERE clause condition of e. It's called LATERAL JOIN there. We can execute all DML operations on a view. View my complete profile. 4) and it pretty much shows the same behavior with the exception that the first query is really, really slow on Postgres (12 minutes with just 25. The SQL for a 3 step sequence uses lateral joins as follows: SELECT X. com Sponsored by. For a full list of releases, see github. emp table • Show department number and count columns • If no employees from a given department was hired on Monday, we should list such department with 0 in the count column • Sort the…. edu is a platform for academics to share research papers. In this tutorial, you will learn how to use the PostgresQL CROSS JOIN to produce the cartesian product of rows in the joined tables. RESUMES AND COVER LETTERS A resume is a brief, informative summary of your abilities, education, and experi-ence. This feature was introduced in Oracle 7. com bi-weekly newsletter keeps you up to speed on the most recent blog posts and forum discussions in the SQL Server community. Xiny, Cheng Liany, Yin Huaiy, Davies Liuy, Joseph K. Beaking is a key to assessing the presence of a potential AFF. If you want to share your thoughts, please feel free to comment below to let me know. hive sql 中lateral view explode/json_tuple的使用. I'd prefer a transpose solution as its dynamic, Proc SQL requires hard coding the answers. Support for hive compatible LATERAL VIEW. Add support for LATERAL VIEW OUTER explode() More robust view canonicalization without full SQL. OOP principals, what's an object, what's a class, how to define a class, how to create a new object, overriding vs overloading, what's a join is in sql Answer Question; Strength, weakness, a time you dealt with a complex situation, time you saw an opportunity and took it that someone else didn't, 3 qualities of a good leader Answer Question. What the SQL?!? Lateral Joins¶ Today's "What the SQL?!?" features the keyword LATERAL. In Oracle, ANSI left and right outerjoins are internally expressed in terms of left outerjoined lateral views. Presto uses ANSI SQL syntax and semantics, whereas Hive uses a SQL-like language called HiveQL which is loosely modeled after MySQL (which itself has many differences from ANSI SQL). org Skip to main content Skip to search. Lateral SQL Injection and Conferences and security training April 30th, 2008 by Pete I am writing this whilst sat on a train travelling at around 120mph between York and Darlington, this is probably my first blog entry written at speed!. LATERAL JOIN. Because the * is used in the select, all fields from the suppliers table would appear in the result set. Migrating From Hive. Sometimes, its is even faster to split an SQL statement with an OR in the WHERE condition into two separate statements. The Census Flows Mapper is a web mapping application intended to provide users with a simple interface to view, save and print migration flows maps. The good news is that if you are using BigQuery's updated SQL syntax (and thus not Legacy SQL), you don't need to bother with the FLATTEN function at all: BigQuery returns results that retain their nested and REPEATED associations automatically. Effective from V2. (A lateral view is an inline view that contains correlation referring to other tables that precede it in the FROM clause. The SQL PERCENT_RANK is one of the Analytic Function in SQL Server, which will calculate the relative rank of each row. [SQL] SPARK-6489: Optimize lateral view with explode to not unnecessary columns. NET, SQL and SharePoint servers last month, so we may not have many additional updates. MITRE ATT&CK™ is a globally-accessible knowledge base of adversary tactics and techniques based on real-world observations. I am new to SAS and have had no training, so please be specific in your response. In many cases, a left outerjoined lateral view can be merged and the ANSI left (or right) outerjoin can be expressed entirely in terms of Oracle native left outerjoin operator. It is a standard RDBMS concept. I have data as source as below. A version with outer but without aggregation also succeeds, making it possible to work around this issue with a subquery:. Temporary alternative name for a column in a table or view. As a matter of fact, the SQL standard continued to evolve during the past decades resulting in the current release of 2016. a LATERAL FROM-clause item. A LATERAL item can appear at top level in the FROM list, or within. , show each array element in a separate record. 1 Practical Considerations with Nonstructural Components. New Features in HyperSQL 2. Your SQL will be vendor independent (like you would ever want to move away from Oracle) and your statements are more self-documenting, relieving you of the duty of documenting your statements. These functions are: COUNT, MAX, MIN, AVG, SUM, DISTINCT. These are the values that each row of a database table […]. What is SQL? SQL Overview: SQL stands for Structured Query Language. The process took 2 weeks. No big data system required. edu is a platform for academics to share research papers. When a table reference names a table that is the parent of a table inheritance hierarchy, the table reference produces rows of not only that table but all of its descendant tables, unless. 0 and beyond. Once we have created (or migrated) a temporal table and we have been modifying data for some time, we of course want to view all the historic changes of the data. we will need to flatten the “dealer” array using the “lateral flatten” function of Snowflake SQL to insert the same into a. *,就是原表的字段,我这里面只有一个字段,且为X,效果就是上面的图片效果了。. SQL Server Indexed Views: The Basics Views are a valuable tool for the SQL Server Developer, because they hide complexity and allow for a readable style of SQL expression. (look at pages 1 to 16) Does it exist in SQLITE ? If not, would it be possible too much. Here's the SQL formatted for reading:. Also, you will take up less space (think about this: how many times are the bytes "gender" in that table's data?) - Chris Trahey Jul 13 '12 at 0:19. Lateral view is used to select other table columns with exploded columns. What are the popular Database Management Systems in the IT Industry? Oracle, MySQL, Microsoft SQL Server, PostgreSQL, Sybase, MongoDB, DB2, and Microsoft Access etc. 3 The View Editor 9. Summary: in this tutorial, you will learn how to select data from multiple tables by using the PostgreSQL INNER JOIN clause. Starting with SQL:1999, the SQL standard defines a large set of individual features rather than the three levels (Entry, Intermediate and Full) declared in SQL-92. Hi I am struggling with lateral view outer explode statement. [1] LATERAL is not supported as of SQL Server 2014 but [CROSS|OUTER] APPLY can be used for the same effect. SQL is the language that Microsoft jet engine understands and permits us to comunicate to it. Alias SQL example: If your database tables need to have two or more columns with the same relationship to another table. The LATERAL keyword allows you to specify the table to the left of the LATERAL keyword inside the inline view to the right of the keyword. 3, SchemaRDD will be renamed to DataFrame. For added protection, back up the registry before you modify it. Transactional Savepoint. However, this can allow SQL injection attacks, particularly if you create the SQL statement using input from a public or untrusted source. The SQL for a 3 step sequence uses lateral joins as follows: SELECT X. Posts about Lateral View written by Zahar Hilkevich. I can replicate on my 12. He has authored 11 SQL Server database books, 23 Pluralsight courses and has written over 4700 articles on the database technology on his blog at a https://blog. I ran this example on Postgres (9. (look at pages 1 to 16) Does it exist in SQLITE ? If not, would it be possible too much. SQL LEFT JOIN examples SQL LEFT JOIN two tables examples. The usage of view in Hive is same as that of the view in SQL. These are the values that each row of a database table […]. 1) Oracle 12c introduced the LATERAL inline view syntax, as well as CROSS APPLY and OUTER APPLY joins into the SELECT syntax. If we have to name the most important feature for SPS04, I believe transactional savepoint will be at the top of the list. I have two feature classes in a File Geodatabase that I would like to join based on multiple fields. August 30, 2014, 4:34am #1. Once we have created (or migrated) a temporal table and we have been modifying data for some time, we of course want to view all the historic changes of the data. Enable Lateral Movement [Configure SAM-R permissions] There is a complete section on Microsoft documentation about configuring SAM-R permissions so that Azure ATP sensors can query the local admin on machines where sensitive accounts log on, in order to generate the lateral movement graph. Not bad! But that is just a flavor of how you can utilize Snowflake to easily get value from your JSON data. Or do you want to check an account to see if it has known lateral movement paths and what they are? I don’t have this use case, but working through some others in ATA. * explode(MAP T-SQL, the procedural language I chose to implement atop SQLite, is not a great general-purpose programming language. The left and right tables are the first and second tables listed in the syntax. Can you give an example of how the "lateral" syntax works in Oracle SQL? I need SQL Lateral keyword for in-line view examples. Most of the article is built around simple examples to illustrate how those functions can be. In contrast, Database Replay does not need you to provide SQL statements. com bi-weekly newsletter keeps you up to speed on the most recent blog posts and forum discussions in the SQL Server community. We have created a “Beaking Index,” that is a measure of the magnitude of the increase in the cortical. SQL distinguishes between reserved and non-reserved key words. However, this can allow SQL injection attacks, particularly if you create the SQL statement using input from a public or untrusted source. NET, SQL and SharePoint servers last month, so we may not have many additional updates. The valid SQL SECURITY characteristic values are DEFINER (the default) and INVOKER. A view can be created from one or many tables which depends on the written SQL query to create a view. The LATERAL keyword allows you to specify the table to the left of the LATERAL keyword inside the inline view to the right of the keyword. For example, this query:. The LATERAL keyword is not required in the FROM clause for derived tables in which all uncorrelated table and column references have already been resolved. To earn this responsibility, you must attend Officer Candidate School, a 12-week course designed to teach core. In many cases, a left outerjoined lateral view can be merged and the ANSI left (or right) outerjoin can be expressed entirely in terms of Oracle native left outerjoin operator. Hadoop Tutorial - Getting Started with HDP Hive - Data ETL Through the use of SQL you can view your data as a table and create queries like you would in an. We need to generate a different number of records for each task, based on the values of the START_TIME, END_TIME and REPEAT_INTERVAL columns. - LucaCanali/Miscellaneous. 先贴一下hive中get_json_object和json_tuple两个函数的区别: Hive中提供了两种针对json数据格式解析的函数,即get_json_object(…)与json_tuple(…),理论不多说,直接上效果示意图: 假设存在如下json数据对象,若使. Since SQL joins appear to be set-based, the use of Venn diagrams to explain them seems, at first blush, to be a natural fit. At the end of the talk what I would like is: for developers to understand SQL, and how ORM executes SQL better to discover fun SQL things that they might not know, and what can or can't be used with simple ORMs call and if it's not (yet) in the ORM, how can I execute it beautifully. (A lateral view is an inline view that contains correlation referring to other tables that precede it in the FROM clause. My suggestion here would be to use the developer tools with network tab or view enabled and mimic in the GUI what you are trying to get programmatically. Attendees were then able to view sample reports via my Windows Phone Power BI application to get a clear idea of the end-user mobile experience. Temporary alternative name for a column in a table or view. In the Lateral View section of that post they go through some examples and discuss how a query is transformed with the ANSI outer join syntax. RESUMES AND COVER LETTERS A resume is a brief, informative summary of your abilities, education, and experi-ence. Optimise a LATERAL JOIN query on a big table. We need to generate a different number of records for each task, based on the values of the START_TIME, END_TIME and REPEAT_INTERVAL columns. He has authored 11 SQL Server database books, 23 Pluralsight courses and has written over 4700 articles on the database technology on his blog at a https://blog. 今回、紹介した cross apply 、outer apply はベンダー依存の構文で、sql 標準では lateral 句として規定されており、oracle、postgresql でサポートされています。 終わりに. Problem: What ports does MS Exchange use? Which TCP/UDP ports are used by Microsoft Exchange? Solution: This knowledgebase articles details the TCP and UDP ports used by MS Exchange 2003, 2007 and 2010. NET Framework Regular Expression stuff via MS SQL Server CLR integration. table_or_view_name Is the name of a table or view. In the Lateral View section of that post they go through some examples and discuss how a query is transformed with the ANSI outer join syntax. a LATERAL FROM-clause item. Hive MAPJOIN + LATERAL VIEW. What makes lateral joins useful is that predicates derived from columns in the driving row source (i. Mohiuddin Ali Khan Ph. Support for hive compatible LATERAL VIEW. If they return different numbers of rows, the shorter results are extended to match the longest result by adding nulls. Lateral Views In Oracle, ANSI left and right outerjoins are internally expressed in terms of left outerjoined lateral views. At the end of the talk what I would like is: for developers to understand SQL, and how ORM executes SQL better to discover fun SQL things that they might not know, and what can or can't be used with simple ORMs call and if it's not (yet) in the ORM, how can I execute it beautifully. The latest Tweets from Markus Winand (@MarkusWinand). These indicate that the required privileges must be held by the user who defined or. This document lists the enhancements and new features in version 2. We need to generate a different number of records for each task, based on the values of the START_TIME, END_TIME and REPEAT_INTERVAL columns. These functions are: COUNT, MAX, MIN, AVG, SUM, DISTINCT. In contrast, Database Replay does not need you to provide SQL statements. Procedure to File a Claim for Sewer Lateral Line Damage. In the Lateral View section of that post they go through some examples and discuss how a query is transformed with the ANSI outer join syntax. There is some similarity between them, so it's easier to deal with them in a single article. In my mind, the primary benefit of LATERAL joins are flexibility. explode() takes in an array as an input and outputs the elements of the array as separate rows. a LATERAL FROM-clause item. When processing JSON documents in PostgreSQL, we are still doing SQL and benefiting from its many features. Last summer, along with ice cream, hours of lawn mowing, and paddleboarding on Lake Winton, I enjoyed the SPEED PHREAK competition. I have learned that there is a new LATERAL keyword available in 12c Version. The FROM Clause derives a table from one or more other tables given in a comma-separated table reference list. Migrating From Hive. [1] LATERAL is not supported as of SQL Server 2014 but [CROSS|OUTER] APPLY can be used for the same effect. You can easily join them with the help of aliases, as explained below. Full course : Learn Big data Hive + ADVANCE Hive + Interview asked Use Cases Click on the below link https://www. We will get back the raw JSON from the files. This function will return the rank from a range of values, which are greater than 0 and less than 1. 0, many new features and enhancements have been introduced in point releases. Presto uses UNNEST to expand arrays and maps. In each installment of this series, I will visit an op code or set of op codes in order to prove my contention. These are the values that each row of a database table […]. 4 Modifying a View Using the Properties Palette You can add views to a database either from the Physical Schemas section of the MySQL Model page or from the EER Diagram. A derived table that is embedded in the query is sometimes called an. 0 and beyond. Whitepapers. I can replicate on my 12. Simulating Lateral Attacks Through Email Here are three strategies to block them. Learn from a team of expert teachers in the comfort of your browser with video lessons and fun coding challenges and projects. A lateral join is essentially a foreach loop in SQL. To solve this problem, the SQL standard allows you to pass parameters by name, and to define parameters which are optional (that is, have a default value that is used if they are not specified). It was added in version 9. Pgs 312-313. Although it alone will not get you a job or internship, a good resume is an important element toward obtain-. Introduction to PostgreSQL INNER JOIN clause. LATERAL Availability (SQL:1999) 1999 2001 2003 2005 2007 2009 2011 2013 9. Constants (Transact-SQL) 07/22/2017; 4 minutes to read; In this article. This makes the data appear as if from one table. No big data system required. The Oracle PIVOT clause allows you to write a cross-tabulation query starting in Oracle 11g. MS SQL Server. deptno with the JOIN x USING(deptno) – it first looked legitimate to me until I realized that we have just added an extra join instead of a reference to an external table (CTE x). Presto uses UNNEST to expand arrays and maps. json as json_insideLayer2 from (select '1' id) creatives lateral view json_tuple('{"layer1": {"layer2": "text inside layer 2"}}', 'layer1') insideLayer1 as json lateral view json_tuple(insideLayer1. The general syntax for using these. MySQL NATURAL JOIN is such a join that performs the same task as an INNER or LEFT JOIN, in which the ON or USING clause refers to all columns that the tables to be joined have in common. * explode(MAP