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https://issues.apache.org/jira/browse/CALCITE-6022?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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hongyu guo updated CALCITE-6022:
--------------------------------
Description:
"CREATE TABLE ... LIKE" is SQL standard syntax, and some other dbms(mysql,
postgresql, sparksql) support it. So I think it is worth implementing.syntax:
{code:sql}
CREATE TABLE [IF NOT EXISTS] table_name
LIKE source_table [ like_option ... ]{code}
And for the `like_option`, I think the syntax of postgreSQL is more flexible
and powerful, and I believe it is reasonable to be similar to postgreSQL. But
there are not so many attributes in calcite, just keep CONSTRAINTS DEFAULTS and
ALL.
{code:sql}
{ INCLUDING | EXCLUDING } { CONSTRAINTS | DEFAULTS | ALL }{code}
Some related link:
[https://www.postgresql.org/docs/current/sql-createtable.html]
[https://ronsavage.github.io/SQL/sql-2003-2.bnf.html#table%20definition]
[https://dev.mysql.com/doc/refman/8.0/en/create-table-like.html]
was:
"CREATE TABLE ... LIKE" is SQL standard syntax, and some other dbms(mysql,
postgresql, sparksql) support it. So I think it is worth implementing.
syntax:
{code:java}
CREATE TABLE [IF NOT EXISTS] table_name
LIKE source_table [ like_option ... ]{code}
And for the `like_option`, I think the syntax of postgreSQL is more flexible
and powerful, and I believe it is reasonable to be similar to postgreSQL. But
there are not so many attributes in calcite, just keep CONSTRAINTS DEFAULTS and
ALL.
{code:java}
{ INCLUDING | EXCLUDING } { CONSTRAINTS | DEFAULTS | ALL }{code}
Some related link
[https://www.postgresql.org/docs/current/sql-createtable.html]
[https://ronsavage.github.io/SQL/sql-2003-2.bnf.html#table%20definition]
[https://dev.mysql.com/doc/refman/8.0/en/create-table-like.html]
> Support "CREATE TABLE ... LIKE" DDL
> -----------------------------------
>
> Key: CALCITE-6022
> URL: https://issues.apache.org/jira/browse/CALCITE-6022
> Project: Calcite
> Issue Type: New Feature
> Components: server
> Affects Versions: 1.35.0
> Reporter: hongyu guo
> Priority: Major
> Fix For: 1.36.0
>
>
> "CREATE TABLE ... LIKE" is SQL standard syntax, and some other dbms(mysql,
> postgresql, sparksql) support it. So I think it is worth implementing.syntax:
> {code:sql}
> CREATE TABLE [IF NOT EXISTS] table_name
> LIKE source_table [ like_option ... ]{code}
> And for the `like_option`, I think the syntax of postgreSQL is more flexible
> and powerful, and I believe it is reasonable to be similar to postgreSQL. But
> there are not so many attributes in calcite, just keep CONSTRAINTS DEFAULTS
> and ALL.
> {code:sql}
> { INCLUDING | EXCLUDING } { CONSTRAINTS | DEFAULTS | ALL }{code}
> Some related link:
> [https://www.postgresql.org/docs/current/sql-createtable.html]
> [https://ronsavage.github.io/SQL/sql-2003-2.bnf.html#table%20definition]
> [https://dev.mysql.com/doc/refman/8.0/en/create-table-like.html]
>
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