private ArrayNode createJsonForGenerate(Object vectorIdentifier) {
ArrayNode outputTupleJson = JsonUtils.createArrayNode();
// + First duplicate existing schema
for (String s : inputBlock.getProperties().getSchema().getColumnNames()) {
outputTupleJson.add(RewriteUtils.createProjectionExpressionNode(s, s));
}
// + Add the new generated column
JsonNode constNode;
if (vectorIdentifier instanceof String)
constNode = RewriteUtils.createStringConstant((String) vectorIdentifier);
else constNode = RewriteUtils.createIntegerConstant((Integer) vectorIdentifier);
String outColName = metaRelationName + "___" + identifierColumnName;
outputTupleJson.add(
JsonUtils.createObjectNode("col_name", outColName, "expression", constNode));
return outputTupleJson;
}
