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https://issues.apache.org/jira/browse/CALCITE-5403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17640200#comment-17640200
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Dmitry Sysolyatin commented on CALCITE-5403:
--------------------------------------------
PR - https://github.com/apache/calcite/pull/2986
> PostgreSQL dialect should support SET, RESET, BEGIN, SHOW, ROLLBACK, COMMIT
> ---------------------------------------------------------------------------
>
> Key: CALCITE-5403
> URL: https://issues.apache.org/jira/browse/CALCITE-5403
> Project: Calcite
> Issue Type: Bug
> Components: babel
> Reporter: Dmitry Sysolyatin
> Assignee: Dmitry Sysolyatin
> Priority: Major
> Labels: pull-request-available
>
> Babel parser can not parse BEGIN [1], SHOW [2], ROLLBACK [3], COMMIT [4]
> commands at the moment.
> It can parse SET [5] and RESET [6], but not completely. For instance, it can
> not parse the following statement:
> {code:java}
> SET SCHEMA public,public,"$user"
> {code}
> The syntax for these commands is as follows:
> * BEGIN [1]:
> {code:java}
> BEGIN [ WORK | TRANSACTION ] [ transaction_mode [, ...] ]
> where transaction_mode is one of: ISOLATION LEVEL { SERIALIZABLE | REPEATABLE
> READ | READ COMMITTED | READ UNCOMMITTED } READ WRITE | READ ONLY [ NOT ]
> DEFERRABLE
> {code}
> * SHOW [2]:
> {code:java}
> SHOW (<TRANSACTION ISOLATION LEVEL> | <string literal>)
> {code}
> * ROLLBACK [3]:
> {code:java}
> ROLLBACK [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]
> {code}
> * COMMIT [4]:
> {code:java}
> COMMIT [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]
> {code}
> * SET [5]
> {code:java}
> SET [ SESSION | LOCAL ] configuration_parameter { TO | = } { value | 'value'
> | DEFAULT }
> SET [ SESSION | LOCAL ] TIME ZONE { value | 'value' | LOCAL | DEFAULT }
> SET [ SESSION | LOCAL ] { SCHEMA | SEED | NAMES } value
> Values can be specified as string constants, identifiers, numbers, or
> comma-separated lists of these
> {code}
> * RESET [6]
> {code:java}
> RESET <parameter>;
> {code}
> [1] [https://www.postgresql.org/docs/current/sql-begin.html]
> [2] [https://www.postgresql.org/docs/current/sql-show.html]
> [3] [https://www.postgresql.org/docs/current/sql-rollback.html]
> [4] [https://www.postgresql.org/docs/current/sql-commit.html]
> [5] [https://www.postgresql.org/docs/current/sql-set.html]
> [6] [https://www.postgresql.org/docs/current/sql-reset.html]
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