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Overview
| Comment: | Modify virtual methods for index estimated cost handling. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | virtualTables |
| Files: | files | file ages | folders |
| SHA1: |
c1d296428129467d8a585a71f44e3af7 |
| User & Date: | mistachkin 2013-06-22 20:04:08 |
Context
|
2013-06-22
| ||
| 20:05 | Also update error message wording. check-in: f01efa4daa user: mistachkin tags: virtualTables | |
| 20:04 | Modify virtual methods for index estimated cost handling. check-in: c1d2964281 user: mistachkin tags: virtualTables | |
| 02:51 | Support compiling without built-in support for creating virtual tables in managed code, thus allowing the vtshim extension module to be excluded. check-in: a85fc42853 user: mistachkin tags: virtualTables | |
Changes
Changes to System.Data.SQLite/SQLiteModule.cs.
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return SetTableError(pVtab, error);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Index Handling Helper Methods
protected virtual bool SetDefaultEstimatedCost(
SQLiteIndex index
)
{
if ((index == null) || (index.Outputs == null))
return false;
index.Outputs.EstimatedCost = DefaultCost;
return true;
}
#endregion
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Properties
private bool logErrors;
|
| | > | > > > > > > > > > |
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return SetTableError(pVtab, error);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Index Handling Helper Methods
protected virtual bool SetEstimatedCost(
SQLiteIndex index,
double estimatedCost
)
{
if ((index == null) || (index.Outputs == null))
return false;
index.Outputs.EstimatedCost = estimatedCost;
return true;
}
///////////////////////////////////////////////////////////////////////
protected virtual bool SetEstimatedCost(
SQLiteIndex index
)
{
return SetEstimatedCost(index, DefaultCost);
}
#endregion
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Properties
private bool logErrors;
|
Changes to System.Data.SQLite/SQLiteModuleEnumerable.cs.
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public override SQLiteErrorCode BestIndex(
SQLiteVirtualTable table,
SQLiteIndex index
)
{
CheckDisposed();
if (!SetDefaultEstimatedCost(index))
{
SetTableError(table, "failed to set default estimated cost");
return SQLiteErrorCode.Error;
}
return SQLiteErrorCode.Ok;
}
|
| |
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public override SQLiteErrorCode BestIndex(
SQLiteVirtualTable table,
SQLiteIndex index
)
{
CheckDisposed();
if (!SetEstimatedCost(index))
{
SetTableError(table, "failed to set default estimated cost");
return SQLiteErrorCode.Error;
}
return SQLiteErrorCode.Ok;
}
|