sqliteJoinType
joinop(X) ::= JOIN_KW(A) JOIN. { X = sqliteJoinType(pParse,&A,0,0); }
joinop(X) ::= JOIN_KW(A) nm(B) JOIN. { X = sqliteJoinType(pParse,&A,&B,0); }
{ X = sqliteJoinType(pParse,&A,&B,&C); }
int sqliteJoinType(Parse*, Token*, Token*, Token*);