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http://www.openoffice.org/issues/show_bug.cgi?id=58268
Issue #:|58268
Summary:|Performance issue: OO makes unnecessary calls to
|ODBC API
Component:|Database access
Version:|OOo 2.0
Platform:|PC
URL:|
OS/Version:|Windows XP
Status:|UNCONFIRMED
Status whiteboard:|
Keywords:|
Resolution:|
Issue type:|DEFECT
Priority:|P3
Subcomponent:|none
Assigned to:|dbaneedsconfirm
Reported by:|johngrubb
------- Additional comments from [EMAIL PROTECTED] Mon Nov 21 13:18:16 -0800
2005 -------
When the application lists the avaialable tables for a list (like a drop down in
the DataPilot), it makes extra calls for connection level attribute for each
table. A quick snippet from a trace:
========================================================================
scalc 1388-116c EXIT SQLGetData with return code 0
(SQL_SUCCESS)
HSTMT 058338B8
UWORD 3
SWORD 1 <SQL_C_CHAR>
PTR 0x00E1DC9C [ 7] "ACCOUNT"
SQLLEN 2047
SQLLEN * 0x00E1E4D8 (7)
scalc 1388-116c ENTER SQLGetInfoW
HDBC 058315E8
UWORD 29 <SQL_IDENTIFIER_QUOTE_CHAR>
PTR 0x05834180
SWORD 1022
SWORD * 0x00E1E474
scalc 1388-116c EXIT SQLGetInfoW with return code 0
(SQL_SUCCESS)
HDBC 058315E8
UWORD 29 <SQL_IDENTIFIER_QUOTE_CHAR>
PTR 0x05834180 [ 2] """
SWORD 1022
SWORD * 0x00E1E474 (2)
scalc 1388-116c ENTER SQLGetInfoW
HDBC 058315E8
UWORD 92 <SQL_CATALOG_USAGE>
PTR 00E1E4A8
SWORD 4
SWORD * 0x00E1E496
scalc 1388-116c EXIT SQLGetInfoW with return code 0
(SQL_SUCCESS)
HDBC 058315E8
UWORD 92 <SQL_CATALOG_USAGE>
PTR 00E1E4A8
SWORD 4
SWORD * 0x00E1E496 (4)
scalc 1388-116c ENTER SQLGetInfoW
HDBC 058315E8
UWORD 41 <SQL_CATALOG_NAME_SEPARATOR>
PTR 0x05834180
SWORD 1022
SWORD * 0x00E1E474
scalc 1388-116c EXIT SQLGetInfoW with return code 0
(SQL_SUCCESS)
HDBC 058315E8
UWORD 41 <SQL_CATALOG_NAME_SEPARATOR>
PTR 0x05834180 [ 2] "."
SWORD 1022
SWORD * 0x00E1E474 (2)
scalc 1388-116c ENTER SQLGetInfoW
HDBC 058315E8
UWORD 114 <SQL_CATALOG_LOCATION>
PTR 0x00E1E4A8
SWORD 2
SWORD * 0x00E1E496
scalc 1388-116c EXIT SQLGetInfoW with return code 0
(SQL_SUCCESS)
HDBC 058315E8
UWORD 114 <SQL_CATALOG_LOCATION>
PTR 0x00E1E4A8 (1)
SWORD 2
SWORD * 0x00E1E496 (2)
scalc 1388-116c ENTER SQLGetInfoW
HDBC 058315E8
UWORD 91 <SQL_OWNER_USAGE>
PTR 00E1E4A8
SWORD 4
SWORD * 0x00E1E496
scalc 1388-116c EXIT SQLGetInfoW with return code 0
(SQL_SUCCESS)
HDBC 058315E8
UWORD 91 <SQL_OWNER_USAGE>
PTR 00E1E4A8
SWORD 4
SWORD * 0x00E1E496 (4)
===========================================================================
SQLGetInfoW is a repository for Connection level attributes. These are not
checked at connection time, but are for each table. They should not change on
a per table basis. The calls are based on an HDBC, not an HSTMT. In most
cases this will not have a huge penalty, but drivers may not cache the
information, requing round trips to the DB, and it generates significant extra
calls in the trace.
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