[GitHub] [spark] maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords
maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords URL: https://github.com/apache/spark/pull/24093#discussion_r265824998 ## File path: docs/sql-keywords.md ## @@ -1,16 +1,20 @@ --- layout: global -title: SQL Reserved/Non-Reserved Keywords -displayTitle: SQL Reserved/Non-Reserved Keywords +title: Spark SQL Keywords +displayTitle: Spark SQL Keywords --- -In Spark SQL, there are 2 kinds of keywords: non-reserved and reserved. Non-reserved keywords have a -special meaning only in particular contexts and can be used as identifiers (e.g., table names, view names, -column names, column aliases, table aliases) in other contexts. Reserved keywords can't be used as -table alias, but can be used as other identifiers. +When `spark.sql.parser.ansi.enabled` is true, Spark SQL has two kinds of keywords: +* Reserved keywords: Keywords that reserved and can't be used as identifiers for table, view, column, alias, etc. Review comment: nit: `* Reserved keywords: Keywords that are reserved and can't be used as identifiers for tables, views, columns, aliases, etc.`? This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services - To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
[GitHub] [spark] maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords
maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords URL: https://github.com/apache/spark/pull/24093#discussion_r265825069 ## File path: docs/sql-keywords.md ## @@ -1,16 +1,20 @@ --- layout: global -title: SQL Reserved/Non-Reserved Keywords -displayTitle: SQL Reserved/Non-Reserved Keywords +title: Spark SQL Keywords +displayTitle: Spark SQL Keywords --- -In Spark SQL, there are 2 kinds of keywords: non-reserved and reserved. Non-reserved keywords have a -special meaning only in particular contexts and can be used as identifiers (e.g., table names, view names, -column names, column aliases, table aliases) in other contexts. Reserved keywords can't be used as -table alias, but can be used as other identifiers. +When `spark.sql.parser.ansi.enabled` is true, Spark SQL has two kinds of keywords: +* Reserved keywords: Keywords that reserved and can't be used as identifiers for table, view, column, alias, etc. +* Non-reserved keywords: Keywords that have a special meaning only in particular contexts and can be used as identifiers in other contexts. Review comment: nit: `in other contexts.` -> `in the other contexts, e.g., SELECT 1 WEEK means interval type data, but WEEK can be used as identifiers`? This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services - To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
[GitHub] [spark] maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords
maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords URL: https://github.com/apache/spark/pull/24093#discussion_r265828883 ## File path: sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4 ## @@ -1215,6 +1232,9 @@ nonReserved | YEARS ; +// +// Start of the keywords list +// SELECT: 'SELECT'; Review comment: +1 This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services - To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
[GitHub] [spark] maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords
maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords URL: https://github.com/apache/spark/pull/24093#discussion_r265828436 ## File path: docs/sql-keywords.md ## @@ -1,16 +1,20 @@ --- layout: global -title: SQL Reserved/Non-Reserved Keywords -displayTitle: SQL Reserved/Non-Reserved Keywords +title: Spark SQL Keywords +displayTitle: Spark SQL Keywords --- -In Spark SQL, there are 2 kinds of keywords: non-reserved and reserved. Non-reserved keywords have a -special meaning only in particular contexts and can be used as identifiers (e.g., table names, view names, -column names, column aliases, table aliases) in other contexts. Reserved keywords can't be used as -table alias, but can be used as other identifiers. +When `spark.sql.parser.ansi.enabled` is true, Spark SQL has two kinds of keywords: +* Reserved keywords: Keywords that reserved and can't be used as identifiers for table, view, column, alias, etc. +* Non-reserved keywords: Keywords that have a special meaning only in particular contexts and can be used as identifiers in other contexts. -The list of reserved and non-reserved keywords can change according to the config -`spark.sql.parser.ansi.enabled`, which is false by default. +When `spark.sql.parser.ansi.enabled` is false, Spark SQL has two kinds of keywords: +* Non-reserved keywords: Keywords that have a special meaning only in particular contexts and can be used as identifiers in other contexts. +* Strict-non-reserved keywords: A strict version of non-reserved keywords, which can not be used as table alias. + +By default `spark.sql.parser.ansi.enabled` is false. + +Below is a list of all the keywords in Spark SQL. Review comment: ok, I'll check and fix as followup. This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services - To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
[GitHub] [spark] maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords
maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords URL: https://github.com/apache/spark/pull/24093#discussion_r265830237 ## File path: docs/sql-keywords.md ## @@ -1,16 +1,20 @@ --- layout: global -title: SQL Reserved/Non-Reserved Keywords -displayTitle: SQL Reserved/Non-Reserved Keywords +title: Spark SQL Keywords +displayTitle: Spark SQL Keywords --- -In Spark SQL, there are 2 kinds of keywords: non-reserved and reserved. Non-reserved keywords have a -special meaning only in particular contexts and can be used as identifiers (e.g., table names, view names, -column names, column aliases, table aliases) in other contexts. Reserved keywords can't be used as -table alias, but can be used as other identifiers. +When `spark.sql.parser.ansi.enabled` is true, Spark SQL has two kinds of keywords: +* Reserved keywords: Keywords that reserved and can't be used as identifiers for table, view, column, alias, etc. +* Non-reserved keywords: Keywords that have a special meaning only in particular contexts and can be used as identifiers in other contexts. -The list of reserved and non-reserved keywords can change according to the config -`spark.sql.parser.ansi.enabled`, which is false by default. +When `spark.sql.parser.ansi.enabled` is false, Spark SQL has two kinds of keywords: +* Non-reserved keywords: Keywords that have a special meaning only in particular contexts and can be used as identifiers in other contexts. +* Strict-non-reserved keywords: A strict version of non-reserved keywords, which can not be used as table alias. Review comment: Great and this new group is easy-to-understand. This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services - To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
[GitHub] [spark] maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords
maropu commented on a change in pull request #24093: [SPARK-27161][SQL] improve the document of SQL keywords URL: https://github.com/apache/spark/pull/24093#discussion_r265830090 ## File path: docs/sql-keywords.md ## @@ -1,16 +1,20 @@ --- layout: global -title: SQL Reserved/Non-Reserved Keywords -displayTitle: SQL Reserved/Non-Reserved Keywords +title: Spark SQL Keywords +displayTitle: Spark SQL Keywords Review comment: `spark.sql.parser.ansi.enabled` affects parsing behaviours, too, e.g., when true, it makes `interval` optional. In future, we could change the behaivour of overflow handling in execution for the more strict ANSI compliance. These behaivour changes affected by the ANSI option should be documented not in this document but in another document? This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services - To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
