Function PASS1_rse

src/dsql/pass1.cpp:581–599

Compile a record selection expression, bumping up the statement scope level everytime an rse is seen. The scope level controls parsing of aliases.

// Compile a record selection expression, bumping up the statement scope level everytime an rse is
// seen. The scope level controls parsing of aliases.
RseNode* PASS1_rse(DsqlCompilerScratch* dsqlScratch,
				   SelectExprNode* input,
				   const SelectNode* select)
{
	DEV_BLKCHK(dsqlScratch, dsql_type_req);
	DEV_BLKCHK(input, dsql_type_nod);

	const bool updateLock = select ? select->dsqlWithLock : false;
	const bool skipLocked = select ? select->dsqlSkipLocked : false;

	dsqlScratch->scopeLevel++;
	RseNode* node = pass1_rse(dsqlScratch, input, NULL, NULL, updateLock, skipLocked, 0);
	dsqlScratch->scopeLevel--;

	if (select)
		node->firstRows = select->dsqlOptimizeForFirstRows;

	return node;
}


// Check for ambiguity in a field reference. The list with contexts where the field was found is