Function PASS1_limit

src/dsql/pass1.cpp:1527–1552

Process the limit clause (FIRST/SKIP/ROWS)

// Process the limit clause (FIRST/SKIP/ROWS)
void PASS1_limit(DsqlCompilerScratch* dsqlScratch, NestConst<ValueExprNode> firstNode,
	NestConst<ValueExprNode> skipNode, RseNode* rse)
{
	DEV_BLKCHK(dsqlScratch, dsql_type_req);
	DEV_BLKCHK(firstNode, dsql_type_nod);
	DEV_BLKCHK(skipNode, dsql_type_nod);

	dsc descNode;

	if (dsqlScratch->clientDialect <= SQL_DIALECT_V5)
		descNode.makeLong(0);
	else
		descNode.makeInt64(0);

	rse->dsqlFirst = Node::doDsqlPass(dsqlScratch, firstNode, false);

	PASS1_set_parameter_type(dsqlScratch, rse->dsqlFirst,
		[&] (dsc* desc) { *desc = descNode; },
		false);

	rse->dsqlSkip = Node::doDsqlPass(dsqlScratch, skipNode, false);

	PASS1_set_parameter_type(dsqlScratch, rse->dsqlSkip,
		[&] (dsc* desc) { *desc = descNode; },
		false);
}


// Lookup a matching item in the select list. Return node if found else return NULL.