If you must do this, retest the existing queries to ensure that they still run or produce expected results, and rewrite the queries if necessary.
1	If	if	SCONJ	_	_	4	mark	_	_
2	you	you	PRON	PERS-P2	_	4	nsubj	_	_
3	must	must	AUX	PRES-AUX	VerbForm=Fin	4	aux	_	_
4	do	do	VERB	INF	VerbForm=Inf	7	advcl	_	_
5	this	this	PRON	DEM-SG	Number=Sing|PronType=Dem	4	obj	_	SpaceAfter=No
6	,	,	PUNCT	Comma	_	4	punct	_	_
7	retest	retest	VERB	IMP	Mood=Imp|VerbForm=Fin	0	root	_	_
8	the	the	DET	DEF	Definite=Def|PronType=Art	10	det	_	_
9	existing	exist	ADJ	ING	Case=Nom	10	amod	_	_
10	queries	query	NOUN	PL-NOM	Number=Plur	7	obj	_	_
11	to	to	PART	_	_	12	mark	_	_
12	ensure	ensure	VERB	INF	VerbForm=Inf	7	advcl	_	_
13	that	that	SCONJ	_	_	16	mark	_	_
14	they	they	PRON	PERS-PL-NOM	Case=Nom|Number=Plur|Person=3|PronType=Prs	16	nsubj	_	_
15	still	still	ADV	_	_	16	advmod	_	_
16	run	run	VERB	PRES	Mood=Ind|Tense=Pres|VerbForm=Fin	12	ccomp	_	_
17	or	or	CCONJ	_	_	18	cc	_	_
18	produce	produce	VERB	IMP	VerbForm=Inf	16	conj	_	_
19	expected	expect	ADJ	PASS	Case=Nom	20	amod	_	_
20	results	result	NOUN	PL-NOM	Number=Plur	18	obj	_	SpaceAfter=No
21	,	,	PUNCT	Comma	_	23	punct	_	_
22	and	and	CCONJ	_	_	23	cc	_	_
23	rewrite	rewrite	VERB	IMP	Mood=Imp|VerbForm=Fin	7	conj	_	_
24	the	the	DET	DEF	Definite=Def|PronType=Art	25	det	_	_
25	queries	query	NOUN	PL-NOM	Number=Plur	23	obj	_	_
26	if	if	SCONJ	_	_	27	mark	_	_
27	necessary	necessary	ADJ	POS	Degree=Pos	23	advmod	_	SpaceAfter=No
28	.	.	PUNCT	Period	_	7	punct	_	_
