Bugs item #555070, was opened at 2002-05-12 12:49
Message generated for change (Comment added) made by pilhuhn
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Category: JBossCMP
Group: v4.0
Status: Open
Resolution: Postponed
Priority: 5
Submitted By: Dylan van Iersel (dviersel)
Assigned to: Alexey Loubyansky (loubyansky)
Summary: Incorrect CREATE statement for MySQL ds
Initial Comment:
The CREATE statement to create a new table in a MySQL datasource does
not quote the tablename nor the column names. This causes problems
when tables are created with names corresponding to MySQL reserved
words. For example: when deploying an entity bean called "Group",
JBoss trace
shows:
org.jboss.deployment.DeploymentException: Could
not deploy njar:file:/C:/Java/jboss-
3.0.0RC2/server/
default/tmp/deploy/server/default/deploy/rcontrol.ear/80.rcontrol.ear^/nntp-
bingrab.jar; - nested th
rowable:
(org.jboss.deployment.DeploymentException: Error while
creating table; - nested throwable:
(java.sql.SQLException:
Syntax error or access violation: You have an error in your SQL
syntax near
'Group (id VARCHAR(255) BINARY NOT NULL, CONSTRAINT
pk_Group PRIMARY KEY (id))' at line 1))
When I directly enter
this CREATE statement on the MySQL command-line, I get the same
error, whilst when I surround them by quotes (`) the table is created
correctly.
OS: Win2000
JDK: 1.3.1
JBoss 3.0 RC2
----------------------------------------------------------------------
>Comment By: Heiko W.Rupp (pilhuhn)
Date: 2003-08-20 13:49
Message:
Logged In: YES
user_id=217112
The following escapes reserved words by prepending a 'X':
It works for me (yes, also when entering data into the
tables etc.), but I am not sure if this is the right way to
do. Also more reserved words need to be added.
Heiko
===================================================================
RCS file:
/cvsroot/jboss/jboss/src/main/org/jboss/ejb/plugins/cmp/jdbc/SQLUtil.java,v
retrieving revision 1.12.4.4
diff -r1.12.4.4 SQLUtil.java
33a34,37
>
> private final static String[] rwords =
{"CREATE","TABLE","ON","ALTER"};
>
>
40a45,54
> // check for SQL reserved word and escape it with
prepending a "X"
> // IMHO one should reject reserved words and throw a
> // DeploymentException - pilhuhn
> for (int i = 0; i<rwords.length;i++) {
> if (rwords[i].equalsIgnoreCase(tableName)) {
> tableName = "X" + tableName;
> break;
> }
> }
>
56c70
< // TODO: check for SQL reserved word
---
>
----------------------------------------------------------------------
Comment By: Dain Sundstrom (dsundstrom)
Date: 2003-08-18 00:36
Message:
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I am no no longer a JBoss committer, so I am unable to fix
any bugs.
----------------------------------------------------------------------
Comment By: Dain Sundstrom (dsundstrom)
Date: 2002-06-25 01:54
Message:
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This will be fixed during the rewrite of the metadata
package in 3.1.
----------------------------------------------------------------------
Comment By: Dain Sundstrom (dsundstrom)
Date: 2002-05-14 20:09
Message:
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This is unlikely to change any time soon. I suggest you
avoid sql reserved words. In the future, I want to add
some code that will autogenerate around SQL reserved words.
----------------------------------------------------------------------
Comment By: Stephen Coy (scoy)
Date: 2002-05-13 09:29
Message:
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Further to this, I've added a feature request (555315) regarding this because I think
the current behaviour is more of a limitation of the current design/implementation
rather than a bug per se.
----------------------------------------------------------------------
Comment By: Stephen Coy (scoy)
Date: 2002-05-13 08:30
Message:
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Further to this, I've added a feature request (555315) regarding this because I think
the current behaviour is more of a limitation of the current design/implementation
rather than a bug per se.
----------------------------------------------------------------------
Comment By: Stephen Coy (scoy)
Date: 2002-05-13 08:06
Message:
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This issue is not limited to MySQL. It's my understanding that all JDBC 2.0 compliant
drivers are supposed to support the quoting syntax.
For now, you need to set up name mappings manually in jbosscmp-jdbc.xml.
----------------------------------------------------------------------
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