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We previously attempted to use the ESCAPE clause to set the escape delimiter to

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a backslash.  Unfortunately, this does not universally work on all databases,
since on databases which natively use the backslash as a delimiter, the
backslash itself needs to be delimited, but on other databases that have no
delimiter, backslashing the backslash causes an error.

So the only solution that I can come up with is to create an option in res_odbc
that explicitly specifies whether or not backslash is a native delimiter.  If
it is, we use it natively; if not, we use the ESCAPE clause to make it one.

Reported by: elguero
Patch by: tilghman
(Closes issue #11364)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@89559 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2007-11-25 17:17:10 +00:00
parent 7808fb44f1
commit 095108273b
4 changed files with 32 additions and 6 deletions
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6
include/asterisk/res_odbc.h
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@@ -85,6 +85,12 @@ void ast_odbc_release_obj(struct odbc_obj *obj);
*/
int ast_odbc_sanity_check(struct odbc_obj *obj);
/*! \brief Checks if the database natively supports backslash as an escape character.
* \param obj The ODBC object
* \return Returns 1 if an ESCAPE clause is needed to support '\', 0 otherwise
*/
int ast_odbc_backslash_is_escape(struct odbc_obj *obj);
/*! \brief Prepares, executes, and returns the resulting statement handle.
* \param obj The ODBC object
* \param prepare_cb A function callback, which, when called, should return a statement handle prepared, with any necessary parameters or result columns bound.