julianhyde commented on a change in pull request #1828: [CALCITE-3734] MySQL
JDBC rewrite is producing queries with CHAR with range beyond 255 (Vineet Garg)
URL: https://github.com/apache/calcite/pull/1828#discussion_r384143551
##########
File path:
core/src/test/java/org/apache/calcite/rel/rel2sql/RelToSqlConverterTest.java
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@@ -1712,6 +1712,22 @@ private static String toSql(RelNode root, SqlDialect
dialect) {
sql(query).dialect(MysqlSqlDialect.DEFAULT).ok(expected);
}
+ @Test public void testMySqlCastToVarcharWithLessThanMaxPrecision() {
+ final String query = "select cast(\"product_id\" as varchar(50)),
\"product_id\" "
+ + "from \"product\" ";
+ final String expected = "SELECT CAST(`product_id` AS CHAR(50)),
`product_id`\n"
+ + "FROM `foodmart`.`product`";
+ sql(query).dialect(mySqlDialect(NullCollation.HIGH)).ok(expected);
Review comment:
Rather than `.dialect(mySqlDialect(NullCollation.HIGH))`, is `withMysql()`
sufficient?
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