internal override bool TryResolveSourceColumnType(BatchOutputColumnTypeResolver batchResolver, string sourceColumnName, out SourceColumnType columnDbType)
{
if (string.IsNullOrEmpty(sourceColumnName))
{
throw new ArgumentNullException(nameof(sourceColumnName));
}
if (resolved_table == null)
{
resolved_table = batchResolver.SchemaMetadata.TryGetColumnSourceMetadata(SchemaName, TableName);
if (resolved_table == null)
{
// table not exists???
throw new NotImplementedException(Key + "." + sourceColumnName);
}
}
ColumnTypeMetadata sourceColumnType = resolved_table.TryGetColumnTypeByName(sourceColumnName);
if (sourceColumnType != null)
{
columnDbType = new SourceColumnType(this, sourceColumnName, sourceColumnType.ColumnDbType, sourceColumnType.AllowNull);
return(true);
}
else
{
//throw new NotImplementedException(Key + "." + sourceColumnName + " Table: [" + SchemaName + "].[" + TableName + "]");
columnDbType = null;// DbType.Object; // column 'personid' without alias => source traversion
return(false);
}
}
//private QueryColumnBase override_TryResolveSelectedColumn(BatchOutputColumnTypeResolver batchResolver, string outputColumnName, string sourceColumnName)
//{
// if (resolved_source_metadata == null)
// {
// resolved_source_metadata = batchResolver.TryGetTableVariable(VarTableRef.Variable.Name);
// if (resolved_source_metadata == null)
// {
// throw new NotImplementedException(VarTableRef.WhatIsThis());
// }
// }
// return base.AddResolveOutputdColumn(new QueryColumnE(this, outputColumnName, sourceColumnName, columnDbType.Value));
//}
internal override bool TryResolveSourceColumnType(BatchOutputColumnTypeResolver batchResolver, string sourceColumnName, out SourceColumnType columnType)
{
if (resolved_source_metadata == null)
{
resolved_source_metadata = batchResolver.TryGetTableVariable(VarTableRef.Variable.Name);
if (resolved_source_metadata == null)
{
throw new NotImplementedException(VarTableRef.WhatIsThis());
}
}
ColumnTypeMetadata columnDbType = resolved_source_metadata.TryGetColumnTypeByName(sourceColumnName);
if (columnDbType != null)
{
columnType = new SourceColumnType(this, sourceColumnName, columnDbType.ColumnDbType, columnDbType.AllowNull);
return(true);
}
columnType = null;// DbType.Object;
return(false);
}
//internal QueryColumnBase override_TryResolveSelectedColumn(BatchOutputColumnTypeResolver batchResolver, string outputColumnName, string sourceColumnName)
//{
// if (resolved_source_metadata == null)
// {
// resolved_source_metadata = batchResolver.SchemaMetadata.TryGetFunctionTableMetadata(SchemaName, FunctionName);
// if (resolved_source_metadata == null)
// {
// throw new NotImplementedException(SchemaName + "." + FunctionName + " => " + outputColumnName);
// }
// }
// DbType? columnDbType = resolved_source_metadata.TryGetColumnTypeByName(sourceColumnName);
// if (columnDbType == null)
// {
// return null;
// }
// string outputColumnNameSafe = outputColumnName ?? sourceColumnName;
// return base.AddResolveOutputdColumn(new QueryColumnE(this, outputColumnNameSafe, sourceColumnName, columnDbType.Value));
//}
internal override bool TryResolveSourceColumnType(BatchOutputColumnTypeResolver batchResolver, string sourceColumnName, out SourceColumnType columnType)
{
if (resolved_source_metadata == null)
{
resolved_source_metadata = batchResolver.SchemaMetadata.TryGetFunctionTableMetadata(SchemaName, FunctionName);
if (resolved_source_metadata == null)
{
throw new NotImplementedException(SchemaName + "." + FunctionName + " : " + sourceColumnName);
}
}
ColumnTypeMetadata columnDbType = resolved_source_metadata.TryGetColumnTypeByName(sourceColumnName);
if (columnDbType != null)
{
columnType = new SourceColumnType(this, sourceColumnName, columnDbType.ColumnDbType, columnDbType.AllowNull);
return(true);
}
columnType = null; // DbType.Object;
return(false);
}
public OutputColumnDescriptor(string sourceColumnName)
{
this.OutputColumnName = sourceColumnName;
this.SourceColumnName = sourceColumnName;
this.ColumnType = null;
}
public OutputColumnDescriptor(string sourceColumnName, ColumnTypeMetadata columnType)
{
this.OutputColumnName = sourceColumnName;
this.SourceColumnName = sourceColumnName;
this.ColumnType = columnType;
}
public readonly ColumnTypeMetadata ColumnType; // null: not resolved
public OutputColumnDescriptor(ColumnTypeMetadata columnType)
{
this.ColumnType = columnType;
}
