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https://issues.apache.org/jira/browse/DERBY-2967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12528131
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Kathey Marsden commented on DERBY-2967:
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Mamta, will running with Sun JVM's cause the existing functionality to regress
in some way or will it just mean that the bug you are fixing won't be fixed
when running with Sun JVM's?
> Single character does not match high value unicode character with collation
> TERRITORY_BASED
> -------------------------------------------------------------------------------------------
>
> Key: DERBY-2967
> URL: https://issues.apache.org/jira/browse/DERBY-2967
> Project: Derby
> Issue Type: Bug
> Components: SQL
> Affects Versions: 10.4.0.0
> Reporter: Kathey Marsden
> Assignee: Mamta A. Satoor
> Attachments: step1_iteratorbased_Sep1507_diff.txt,
> step1_iteratorbased_Sep1507_stat.txt, temp_diff.txt, temp_stat.txt,
> TestFrench.java, TestNorway.java
>
>
> With TERRITORY_BASED collation '_' does not match the character \uFA2D. It
> is the same for english or norwegian. FOR collation UCS_BASIC it matches
> fine. Could you tell me if this is a bug?
> Here is a program to reproduce.
> import java.sql.*;
> public class HighCharacter {
> public static void main(String args[]) throws Exception
> {
> System.out.println("\n Territory no_NO");
> Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
> Connection conn =
> DriverManager.getConnection("jdbc:derby:nordb;create=true;territory=no_NO;collation=TERRITORY_BASED");
> testLikeWithHighestValidCharacter(conn);
> conn.close();
> System.out.println("\n Territory en_US");
> conn =
> DriverManager.getConnection("jdbc:derby:endb;create=true;territory=en_US;collation=TERRITORY_BASED");
> testLikeWithHighestValidCharacter(conn);
> conn.close();
> System.out.println("\n Collation USC_BASIC");
> conn = DriverManager.getConnection("jdbc:derby:basicdb;create=true");
> testLikeWithHighestValidCharacter(conn);
> }
> public static void testLikeWithHighestValidCharacter(Connection conn) throws
> SQLException {
> Statement stmt = conn.createStatement();
> try {
> stmt.executeUpdate("drop table t1");
> }catch (SQLException se)
> {// drop failure ok.
> }
> stmt.executeUpdate("create table t1(c11 int)");
> stmt.executeUpdate("insert into t1 values 1");
>
> // \uFA2D - the highest valid character according to
> // Character.isDefined() of JDK 1.4;
> PreparedStatement ps =
> conn.prepareStatement("select 1 from t1 where '\uFA2D' like ?");
> String[] match = { "%", "_", "\uFA2D" };
> for (int i = 0; i < match.length; i++) {
> System.out.println("select 1 from t1 where '\\uFA2D' like " + match[i]);
> ps.setString(1, match[i]);
> ResultSet rs = ps.executeQuery();
> if( rs.next() && rs.getString(1).equals("1"))
> System.out.println("PASS");
> else System.out.println("FAIL: no match");
> rs.close();
> }
> }
> }
> Mamta made some comments on this issue in the following thread:
> http://www.nabble.com/Single-character-does-not-match-high-value-unicode-character-with-collation-TERRITORY_BASED.-Is-this-a-bug-tf4118767.html
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