/* * Sccsid: @(#)rnd.h 9.1.1.10 9/7/95 16:24:09 * * rnd.h -- header file for use withthe portable random number generator * provided by Frank Stephens of Unisys */ /* function protypes */ long NextRand PROTO((long)); long UnifInt PROTO((long, long, long)); double UnifReal PROTO((double, double, long)); double Exponential PROTO((double, long)); static long nA = 16807; /* the multiplier */ static long nM = 2147483647;/* the modulus == 2^31 - 1 */ static long nQ = 127773; /* the quotient nM / nA */ static long nR = 2836; /* the remainder nM % nA */ static double dM = 2147483647.0; #ifdef V2 seed_t Seed[MAX_STREAM + 1] = { {PART, 1, 0, 0}, /* P_MFG_SD 0 */ {PART, 46831694, 0, 0}, /* P_BRND_SD 1 */ {PART, 1841581359, 0, 0}, /* P_TYPE_SD 2 */ {PART, 1193163244, 0, 0}, /* P_SIZE_SD 3 */ {PART, 727633698, 0, 0}, /* P_CNTR_SD 4 */ {PART, 933588178, 0, 0}, /* P_RCST_SD 5 */ {PART, 804159733, 0, 0}, /* P_CMNT_SD 6 */ {PSUPP, 1671059989, 0, 0}, /* PS_QTY_SD 7 */ {PSUPP, 1051288424, 0, 0}, /* PS_SCST_SD 8 */ {PSUPP, 1961692154, 0, 0}, /* PS_CMNT_SD 9 */ {ORDER, 1227283347, 0, 1}, /* O_SUPP_SD 10 */ {ORDER, 1171034773, 0, 1}, /* O_CLRK_SD 11 */ {ORDER, 276090261, 0, V_STR_LEN(O_CMNT_LEN)}, /* O_CMNT_SD 12 */ {ORDER, 1066728069, 0, 1}, /* O_ODATE_SD 13 */ {LINE, 209208115, 0, 1}, /* L_QTY_SD 14 */ {LINE, 554590007, 0, 1}, /* L_DCNT_SD 15 */ {LINE, 721958466, 0, 1}, /* L_TAX_SD 16 */ {LINE, 1371272478, 0, 1}, /* L_SHIP_SD 17 */ {LINE, 675466456, 0, 1}, /* L_SMODE_SD 18 */ {LINE, 1095462486, 0, V_STR_LEN(L_CMNT_LEN)}, /* L_CMNT_SD 19 */ {LINE, 1808217256, 0, 0}, /* L_PKEY_SD 20 */ {LINE, 2095021727, 0, 0}, /* L_SKEY_SD 21 */ {LINE, 1769349045, 0, 0}, /* L_SDTE_SD 22 */ {LINE, 904914315, 0, 0}, /* L_CDTE_SD 23 */ {LINE, 373135028, 0, 0}, /* L_RDTE_SD 24 */ {CUST, 717419739, 0, 0}, /* L_RFLG_SD 25 */ {CUST, 881155353, 0, V_STR_LEN(C_ADDR_LEN)}, /* C_ADDR_SD 26 */ {CUST, 1489529863, 0, 1}, /* C_NTRG_SD 27 */ {CUST, 1521138112, 0, 3}, /* C_PHNE_SD 28 */ {CUST, 298370230, 0, 1}, /* C_ABAL_SD 29 */ {CUST, 1140279430, 0, 1}, /* C_MSEG_SD 30 */ {CUST, 1335826707, 0, V_STR_LEN(C_CMNT_LEN)}, /* C_CMNT_SD 31 */ {SUPP, 706178559, 0, 0}, /* S_ADDR_SD 32 */ {SUPP, 110356601, 0, 0}, /* S_NTRG_SD 33 */ {SUPP, 884434366, 0, 0}, /* S_PHNE_SD 34 */ {SUPP, 962338209, 0, 0}, /* S_ABAL_SD 35 */ {SUPP, 1341315363, 0, 0}, /* S_CMNT_SD 36 */ {PART, 709314158, 0, 0}, /* P_NAME_SD 37 */ {ORDER, 591449447, 0, 1}, /* O_PRIO_SD 38 */ {LINE, 431918286, 0, 0}, /* HVAR_SD 39 */ {NONE, 851767375, 0, 1}, /* O_CKEY_SD 40 */ {NATION, 606179079, 0, 0}, /* N_CMNT_SD 41 */ {REGION, 1500869201, 0, 0}, /* R_CMNT_SD 42 */ {ORDER, 1434868289, 0, 0}, /* O_LCNT_SD 43 */ {SUPP, 263032577, 0, 0}, /* BBB offset 44 */ {SUPP, 753643799, 0, 0}, /* BBB type 45 */ {SUPP, 202794285, 0, 0}, /* BBB comment 46 */ {SUPP, 715851524, 0, 0}, /* BBB junk 47 */ {LINE, 2095021727, 0, 0} /* L_OKEY_SD 48 */ }; #else long Seed[MAX_STREAM + 1] = { 1, /* P_MFG_SD 0 */ 46831694, /* P_BRND_SD 1 */ 1841581359, /* P_TYPE_SD 2 */ 1193163244, /* P_SIZE_SD 3 */ 727633698, /* P_CNTR_SD 4 */ 933588178, /* P_RCST_SD 5 */ 804159733, /* P_CMNT_SD 6 */ 1671059989, /* PS_QTY_SD 7 */ 1051288424, /* PS_SCST_SD 8 */ 1961692154, /* PS_CMNT_SD 9 */ 1227283347, /* O_SUPP_SD 10 */ 1171034773, /* O_CLRK_SD 11 */ 276090261, /* O_CMNT_SD 12 */ 1066728069, /* O_ODATE_SD 13 */ 209208115, /* L_QTY_SD 14 */ 554590007, /* L_DCNT_SD 15 */ 721958466, /* L_TAX_SD 16 */ 1371272478, /* L_SHIP_SD 17 */ 675466456, /* L_SMODE_SD 18 */ 1095462486, /* L_CMNT_SD 19 */ 1808217256, /* L_PKEY_SD 20 */ 2095021727, /* L_SKEY_SD 21 */ 1769349045, /* L_SDTE_SD 22 */ 904914315, /* L_CDTE_SD 23 */ 373135028, /* L_RDTE_SD 24 */ 717419739, /* L_RFLG_SD 25 */ 881155353, /* C_ADDR_SD 26 */ 1489529863, /* C_NTRG_SD 27 */ 1521138112, /* C_PHNE_SD 28 */ 298370230, /* C_ABAL_SD 29 */ 1140279430, /* C_MSEG_SD 30 */ 1335826707, /* C_CMNT_SD 31 */ 706178559, /* S_ADDR_SD 32 */ 110356601, /* S_NTRG_SD 33 */ 884434366, /* S_PHNE_SD 34 */ 962338209, /* S_ABAL_SD 35 */ 1341315363, /* S_CMNT_SD 36 */ 709314158, /* P_NAME_SD 37 */ 591449447, /* O_PRIO_SD 38 */ 431918286, /* HVAR_SD 39 */ 851767375, /* O_CKEY_SD 40 */ 606179079, /* N_CMNT_SD 41 */ 1500869201, /* R_CMNT_SD 42 */ 1434868289, /* O_LCNT_SD 43 */ 263032577, /* BBB offset 44 */ 753643799, /* BBB type 45 */ 202794285, /* BBB comment 46 */ 715851524, /* BBB junk 47 */ 2095021727 /* L_OKEY_SD 48 */ }; /* * Extensions to dbgen for generation of skewed data. * Surajit Chaudhuri, Vivek Narasayya. * (Jan '99) */ /* * For Zipfian distribution, we need to know: * (a) what the current value being generated for this column is * (b) how many distinct values have been generated so far for this column * (c) how many copies of the current value must be generated. * (d) how many copies of the current value have been generated thus far. * (e) skew value being used for a column (only if user chose mixed distr.) * (f) multiplier for each stream. * (note: Global, hence initialized to 0) */ long CurrentValue[MAX_STREAM + 1]; long NumDistinctValuesGenerated[MAX_STREAM + 1]; long CurrentValueTarget[MAX_STREAM + 1]; long CurrentValueCounter[MAX_STREAM + 1]; double ColumnSkewValue[MAX_STREAM + 1]; double Multiplier[MAX_STREAM + 1]; #endif /* V2 */