boolean resolvesDuplicateColumnReference(RangeVariable rangeVar) {
if (tableName == null) {
Expression e = rangeVar.getColumnExpression(columnName);
if (e != null) {
return false;
}
switch (rangeVar.rangeType) {
case RangeVariable.PARAMETER_RANGE:
case RangeVariable.VARIALBE_RANGE:
case RangeVariable.TRANSITION_RANGE:
return false;
default:
int colIndex = rangeVar.findColumn(schema, tableName, columnName);
return colIndex != -1;
}
}
return false;
}
private boolean resolveColumnReference(RangeVariable rangeVar) {
Expression e = rangeVar.getColumnExpression(columnName);
if (e != null) {
opType = e.opType;
nodes = e.nodes;
dataType = e.dataType;
return true;
}
int colIndex = rangeVar.findColumn(schema, tableName, columnName);
if (colIndex == -1) {
return false;
}
switch (rangeVar.rangeType) {
case RangeVariable.PARAMETER_RANGE:
case RangeVariable.VARIALBE_RANGE:
{
if (tableName != null) {
return false;
}
ColumnSchema column = rangeVar.getColumn(colIndex);
if (column.getParameterMode() == SchemaObject.ParameterModes.PARAM_OUT) {
return false;
} else {
opType =
rangeVar.rangeType == RangeVariable.VARIALBE_RANGE
? OpTypes.VARIABLE
: OpTypes.PARAMETER;
}
break;
}
case RangeVariable.TRANSITION_RANGE:
{
if (tableName == null) {
return false;
}
if (schema != null) {
return false;
}
opType = OpTypes.TRANSITION_VARIABLE;
break;
}
default:
{
break;
}
}
setAttributesAsColumn(rangeVar, colIndex);
return true;
}