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https://issues.apache.org/jira/browse/CALCITE-3351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17175527#comment-17175527
]
JIasen Sheng commented on CALCITE-3351:
---------------------------------------
Yes, but it not work
when calcite generate sql，SqlImplementor discard literal charset
{code:java}
case LITERAL:
final RexLiteral literal = (RexLiteral) rex;
if (literal.getTypeName() == SqlTypeName.SYMBOL) {
final Enum symbol = (Enum) literal.getValue();
return SqlLiteral.createSymbol(symbol, POS);
}
switch (literal.getTypeName().getFamily()) {
case CHARACTER:
// discard charset
return SqlLiteral.createCharString((String) literal.getValue2(), POS);
{code}
toSql will return
!toSql Result.png!
{code:java}
{code}
e condition is
!e.condition.png!
when invoke SqlCharStringLiteral.unparse, nlsString charsetName will always be
null
> calcite mysql utf8 throws exception in Chinese
> ----------------------------------------------
>
> Key: CALCITE-3351
> URL: https://issues.apache.org/jira/browse/CALCITE-3351
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.19.0
> Environment: Happened on both Windows and MacOS.
> Reporter: cui
> Priority: Major
> Attachments: e.condition.png, toSql Result.png
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Exception was thrown when connecting with mySQL to query Chinese. The
> following SQL was executed:
> select * from \"test\".\"score_new\" where \"name\"= \'催\' limit 1
> ，if change "getDefaultCharset" in "RelDataTypeFactoryImpl" to
> return Charset.forName("UTF8");
> there will be also exception thrown as the following:
> java.sql.SQLException: Error while executing SQL "select * from
> "test"."score_new" where "name"= '催' limit 1": While executing SQL [SELECT
> *java.sql.SQLException: Error while executing SQL "select * from
> "test"."score_new" where "name"= '催' limit 1": While executing SQL [SELECT
> *FROM `score_new`WHERE `name` = u&'\50ac'LIMIT 1] on JDBC sub-schema at
> org.apache.calcite.avatica.Helper.createException(Helper.java:56) at
> org.apache.calcite.avatica.Helper.createException(Helper.java:41) at
> org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:163)
> at
> org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:227)
> at QueryMysql.main(QueryMysql.java:42)Caused by: java.lang.RuntimeException:
> While executing SQL [SELECT *FROM `score_new`WHERE `name` = u&'\50ac'
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