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https://issues.apache.org/jira/browse/FLINK-17728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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godfrey he updated FLINK-17728:
-------------------------------
Description:
Current, all statements in sql client are parsed via regex matching, which has
many limitations, such as a statement has comments. to avoid that problem, we
should try best to use sql parser to parse a statement.
however, there are many statement can't be handle by sql parser, such as: set,
reset. They are still handle through regex matching.
statements handled through regex matching:
quit, exit, clear, help, desc, explain, set, reset source, show modules
statements handled through sql parser:
show catalogs, show databases, show tables, show functions, use catalog, use,
describe, explain plan for, select, insert, DDLs
> sql client supports parser statements via sql parser
> ----------------------------------------------------
>
> Key: FLINK-17728
> URL: https://issues.apache.org/jira/browse/FLINK-17728
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Client
> Reporter: godfrey he
> Priority: Major
> Fix For: 1.11.0
>
>
> Current, all statements in sql client are parsed via regex matching, which
> has many limitations, such as a statement has comments. to avoid that
> problem, we should try best to use sql parser to parse a statement.
> however, there are many statement can't be handle by sql parser, such as:
> set, reset. They are still handle through regex matching.
> statements handled through regex matching:
> quit, exit, clear, help, desc, explain, set, reset source, show modules
> statements handled through sql parser:
> show catalogs, show databases, show tables, show functions, use catalog, use,
> describe, explain plan for, select, insert, DDLs
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