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https://issues.apache.org/jira/browse/CALCITE-7050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17965520#comment-17965520
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Zhen Chen commented on CALCITE-7050:
------------------------------------
Do we need to continue discussing this? If not, I will remove the
discussion-in-jira label from the PR.
> Invalid unparse for FULL JOIN in MySQLDialect
> ----------------------------------------------
>
> Key: CALCITE-7050
> URL: https://issues.apache.org/jira/browse/CALCITE-7050
> Project: Calcite
> Issue Type: Bug
> Reporter: xiong duan
> Assignee: Yu Xu
> Priority: Major
> Labels: pull-request-available
>
> The SQL in MySQL:
> {code:java}
> SELECT * FROM test002 as table1 full join test002 as table2 on table1.id1 =
> table2.id1; {code}
> throws exception:
> {code:java}
> SQL ERROR [1064] [42000]: You have an error in your SQL syntax; check the
> manual that corresponds to your MySQL server version for the right syntax to
> use near 'full join test002 as table2 on table1.id1 = table2.id1 {code}
> Test case in RelToSqlConverterTest:
> {code:java}
> @Test void testFullJoin() {
> String sql = "select *\n"
> + "from \"store\" as s\n"
> + "full join \"employee\" as e on true\n";
> final String expectedMysql = "SELECT *\n"
> + "FROM `foodmart`.`store`\n"
> + "FULL JOIN `foodmart`.`employee` ON TRUE";
> sql(sql).withMysql().ok(expectedMysql);
> } {code}
> We already have `supportsJoinType` when the jointype is JoinRelTpte.FULL
> return false.
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