Function dsqlSetParameterName

src/dsql/StmtNodes.cpp:10576–10621

Setup parameter name. This function was added as a part of array data type support for InterClient. It is called when either "insert" or "update" statements are parsed. If the statements have input parameters, then the parameter is assigned the name of the field it is being inserted (or updated). The same goes to the name of a relation. The names are assigned to the parameter only if the field is

// to the name of a relation.
// The names are assigned to the parameter only if the field is of array data type.
static void dsqlSetParameterName(DsqlCompilerScratch* dsqlScratch, ExprNode* exprNode, const ValueExprNode* fld_node,
	const dsql_rel* relation)
{
	DEV_BLKCHK(fld_node, dsql_type_nod);
	DEV_BLKCHK(relation, dsql_type_dsql_rel);

	if (!exprNode)
		return;

	const FieldNode* fieldNode = nodeAs<FieldNode>(fld_node);
	fb_assert(fieldNode);	// Could it be something else ???

	if (fieldNode->getDsqlDesc().dsc_dtype != dtype_array)
		return;

	switch (exprNode->getType())
	{
		case ExprNode::TYPE_ARITHMETIC:
		case ExprNode::TYPE_CONCATENATE:
		case ExprNode::TYPE_EXTRACT:
		case ExprNode::TYPE_NEGATE:
		case ExprNode::TYPE_STR_CASE:
		case ExprNode::TYPE_STR_LEN:
		case ExprNode::TYPE_SUBSTRING:
		case ExprNode::TYPE_SUBSTRING_SIMILAR:
		case ExprNode::TYPE_TRIM:
		{
			NodeRefsHolder holder(dsqlScratch->getPool());
			exprNode->getChildren(holder, true);

			for (auto ref : holder.refs)
				dsqlSetParameterName(dsqlScratch, *ref, fld_node, relation);

			break;
		}

		case ExprNode::TYPE_PARAMETER:
		{
			ParameterNode* paramNode = nodeAs<ParameterNode>(exprNode);
			dsql_par* parameter = paramNode->dsqlParameter;
			parameter->par_name = fieldNode->dsqlField->fld_name.c_str();
			parameter->par_rel_name = relation->rel_name.c_str();
			break;
		}
	}
}

// Setup parameter parameters name.
static void dsqlSetParametersName(DsqlCompilerScratch* dsqlScratch, CompoundStmtNode* statements,