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chash.c
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chash.c
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/*
* chash.c
*
* $Id$
*
* Vectored hash join and group by
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2024 OpenLink Software
*
* This project is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; only version 2 of the License, dated June 1991.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "sqlnode.h"
#include "arith.h"
#include "mhash.h"
#include "sqlparext.h"
#include "date.h"
#include "aqueue.h"
int chash_max_count = 20000000;
int chash_init_gb_size = 10000;
int chash_max_key_len = (PAGE_DATA_SZ - 5);
int chash_max_partitions = 1045111;
int chash_part_size = 7011;
int chash_part_max_fill = 4000;
int enable_chash_bloom = 1;
float chash_bloom_bits = 8;
int chash_look_levels = 10;
int enable_chash_join = 1;
int64 chash_min_parallel_fill_rows = 40000;
dk_mutex_t chash_rc_mtx;
dk_mutex_t cha_alloc_mtx;
int64 chash_bytes; /* bytes used in chash arrays */
int64 chash_space_avail = 1000000000;
int chash_per_query_pct = 50;
int cha_stream_gb_flush_pct = 200;
int chash_block_size;
#define CHASH_MAX_COLS 200
#define int64_fill_nt(p, i, n) int64_fill (p, i, n)
#define CHA_PARTITION(cha, h) (cha->cha_n_partitions ? &cha->cha_partitions[h % cha->cha_n_partitions] : cha)
#define CHA_POS_1(cha, hno) ((((uint64)hno) & 0xffffffff) % cha->cha_size)
#define CHA_POS_2(cha, hno) ((((uint64)hno) >> 32) % cha->cha_size)
/*#define CKE(ent) if (0 == memcmp (((char**)ent)[1] + 2, "Supplier#000002039", 18)) bing();*/
#define CKE(ent)
//#undef MHASH_STEP
//#define MHASH_STEP(h, k) MHASH_ID_STEP (h, k)
/* H_PART is extracts the part of the hash no that is used for hash join partitioning */
#define H_PART(h) (((uint64)(h)) >> 32)
void hash_source_chash_input_1i (hash_source_t * hs, caddr_t * inst, caddr_t * state, int n_sets);
void hash_source_chash_input_1i_n (hash_source_t * hs, caddr_t * inst, caddr_t * state, int n_sets);
#define GB_HAS_VALUE(ha, row, nth) \
((db_buf_t)row)[ ha->ha_ch_nn_flags + (nth / 8)] |= 1 << (nth & 7);
#define GB_NO_VALUE(ha, row, nth) \
((db_buf_t)row)[ ha->ha_ch_nn_flags + (nth / 8)] &= ~(1 << (nth & 7));
#define GB_IS_NULL(ha, row, nth) \
(!(((db_buf_t)row)[ ha->ha_ch_nn_flags + (nth / 8)] & (1 << (nth & 7))))
uint64
th2 (int64 h1, int64 h2)
{
uint64 h = 1;
MHASH_STEP (h, h1);
if (h2)
{
MHASH_STEP (h, h2);
}
return h;
}
int consec_sets[ARTM_VEC_LEN];
dtp_t chash_null_flag_dtps[256];
#define AGG_C(dt, op) (((int)dt << 3) + op)
#define GB_CLR_NULL \
if (!not_null) \
{ \
for (inx = 0; inx < n_sets; inx++) \
GB_HAS_VALUE (ha, groups[group_sets[inx]], dep_inx); \
}
#define GB_CLR_NULL_A \
if (!not_null) \
{ \
for (inx = 0; inx < n_sets; inx++) \
GB_HAS_VALUE (ha, groups[inx], dep_inx); \
}
void
gb_aggregate (setp_node_t * setp, caddr_t * inst, chash_t * cha, int64 ** groups, int first_set, int last_set)
{
hash_area_t *ha = setp->setp_ha;
int dep_inx = ha->ha_n_keys;
DO_SET (gb_op_t *, go, &setp->setp_gb_ops)
{
int tmp_sets[ARTM_VEC_LEN];
int tmp_group_sets[ARTM_VEC_LEN];
int base_set = first_set, inx;
int n_sets = last_set - first_set, i;
state_slot_t *ssl = setp->setp_dependent_box[dep_inx - ha->ha_n_keys];
dtp_t dtp = cha->cha_sqt[dep_inx].sqt_dtp;
char not_null = ssl->ssl_sqt.sqt_non_null;
int *sets = NULL;
int *group_sets = NULL;
data_col_t *dc;
if (SSL_REF == ssl->ssl_type)
{
dc = QST_BOX (data_col_t *, inst, ssl->ssl_index);
n_sets = sslr_nn_ref (inst, (state_slot_ref_t *) ssl, tmp_sets, tmp_group_sets, first_set, last_set - first_set);
sets = tmp_sets;
group_sets = tmp_group_sets;
base_set = 0;
}
else if (SSL_VEC == ssl->ssl_type)
{
dc = QST_BOX (data_col_t *, inst, ssl->ssl_index);
if (dc->dc_any_null)
{
n_sets = dc_nn_sets (dc, tmp_sets, first_set, last_set - first_set);
base_set = 0;
sets = tmp_sets;
group_sets = tmp_group_sets;
for (i = 0; i < n_sets; i++)
tmp_group_sets[i] = tmp_sets[i] - first_set;
}
else
{
db_buf_t values = dc->dc_values;
sets = consec_sets;
n_sets = last_set - first_set;
switch (AGG_C (dtp, go->go_op))
{
case AGG_C (DV_LONG_INT, AMMSC_SUM):
GB_CLR_NULL_A;
case AGG_C (DV_LONG_INT, AMMSC_COUNTSUM):
for (inx = 0; 0 && inx <= n_sets - 4; inx += 4)
{
((int64 **) groups)[inx][1 + dep_inx] += ((int64 *) values)[inx + base_set];
((int64 **) groups)[inx + 1][1 + dep_inx] += ((int64 *) values)[inx + 1 + base_set];
((int64 **) groups)[inx + 2][1 + dep_inx] += ((int64 *) values)[inx + 2 + base_set];
((int64 **) groups)[inx + 3][1 + dep_inx] += ((int64 *) values)[inx + 3 + base_set];
}
for (; inx < n_sets; inx++)
((int64 **) groups)[inx][1 + dep_inx] += ((int64 *) values)[inx + base_set];
break;
case AGG_C (DV_SINGLE_FLOAT, AMMSC_SUM):
GB_CLR_NULL_A;
case AGG_C (DV_SINGLE_FLOAT, AMMSC_COUNTSUM):
for (inx = 0; inx < n_sets; inx++)
*(float *) &((double **) groups)[inx][1 + dep_inx] += ((float *) dc->dc_values)[inx + base_set];
break;
case AGG_C (DV_DOUBLE_FLOAT, AMMSC_SUM):
GB_CLR_NULL_A;
case AGG_C (DV_DOUBLE_FLOAT, AMMSC_COUNTSUM):
for (inx = 0; 0 && inx <= n_sets - 4; inx += 4)
{
((double **) groups)[inx][1 + dep_inx] += ((double *) values)[inx + base_set];
((double **) groups)[inx + 1][1 + dep_inx] += ((double *) values)[inx + 1 + base_set];
((double **) groups)[inx + 2][1 + dep_inx] += ((double *) values)[inx + 2 + base_set];
((double **) groups)[inx + 3][1 + dep_inx] += ((double *) dc->dc_values)[inx + 3 + base_set];
}
for (; inx < n_sets; inx++)
((double **) groups)[inx][1 + dep_inx] += ((double *) values)[inx + base_set];
break;
default:
group_sets = tmp_group_sets;
sets = tmp_sets;
n_sets = last_set - first_set;
base_set = 0;
for (i = 0; i < n_sets; i++)
{
group_sets[i] = i;
sets[i] = first_set + i;
}
goto general;
}
dep_inx++;
continue;
}
}
else
{
/* constant corresponds to count * */
for (inx = 0; inx < last_set - first_set; inx++)
((int64 **) groups)[inx][1 + dep_inx]++;
dep_inx++;
continue;
}
general: /* These operations are common for both SSL_VEC and SSL_REF so thaty're is a separate switch */
switch (AGG_C (dtp, go->go_op))
{
case AGG_C (DV_LONG_INT, AMMSC_SUM):
GB_CLR_NULL;
case AGG_C (DV_LONG_INT, AMMSC_COUNTSUM):
for (inx = 0; inx < n_sets; inx++)
((int64 **) groups)[group_sets[inx]][1 + dep_inx] += ((int64 *) dc->dc_values)[sets[inx] + base_set];
break;
case AGG_C (DV_SINGLE_FLOAT, AMMSC_SUM):
GB_CLR_NULL;
case AGG_C (DV_SINGLE_FLOAT, AMMSC_COUNTSUM):
for (inx = 0; inx < n_sets; inx++)
*(float *) &((double **) groups)[group_sets[inx]][1 + dep_inx] += ((float *) dc->dc_values)[sets[inx] + base_set];
break;
case AGG_C (DV_DOUBLE_FLOAT, AMMSC_SUM):
GB_CLR_NULL;
case AGG_C (DV_DOUBLE_FLOAT, AMMSC_COUNTSUM):
#if 0
for (inx = 0; inx <= n_sets - 4; inx += 4)
{
((double **) groups)[group_sets[inx]][1 + dep_inx] += ((double *) dc->dc_values)[sets[inx] + base_set];
((double **) groups)[inx + 1][1 + dep_inx] += ((double *) dc->dc_values)[sets[inx + 1] + base_set];
((double **) groups)[inx + 2][1 + dep_inx] += ((double *) dc->dc_values)[sets[inx + 2] + base_set];
((double **) groups)[inx + 3][1 + dep_inx] += ((double *) dc->dc_values)[sets[inx + 3] + base_set];
}
#endif
for (inx = 0; inx < n_sets; inx++)
((double **) groups)[group_sets[inx]][1 + dep_inx] += ((double *) dc->dc_values)[sets[inx] + base_set];
break;
case AGG_C (DV_LONG_INT, AMMSC_MIN):
#define CHA_AGG_MAX(dtp, cmp) \
for (inx = 0; inx < n_sets; inx++) \
{ \
int64 * ent = groups[group_sets[inx]]; \
if (GB_IS_NULL (ha, ent, dep_inx)) \
{ \
*(dtp*)&ent[dep_inx + 1] = ((dtp*)dc->dc_values)[sets[inx] + base_set]; \
GB_HAS_VALUE (ha, ent, dep_inx); \
} \
else if (*(dtp*)&ent[dep_inx + 1] cmp ((dtp*)dc->dc_values)[sets[inx] + base_set]) \
*(dtp*)&ent[dep_inx + 1] = ((dtp*)dc->dc_values)[sets[inx] + base_set]; \
} \
break;
CHA_AGG_MAX (int64, >);
case AGG_C (DV_LONG_INT, AMMSC_MAX):
CHA_AGG_MAX (int64, <);
case AGG_C (DV_IRI_ID, AMMSC_MAX):
CHA_AGG_MAX (uint64, <);
case AGG_C (DV_IRI_ID, AMMSC_MIN):
CHA_AGG_MAX (uint64, >);
case AGG_C (DV_SINGLE_FLOAT, AMMSC_MIN):
CHA_AGG_MAX (float, >);
case AGG_C (DV_SINGLE_FLOAT, AMMSC_MAX):
CHA_AGG_MAX (float, <);
case AGG_C (DV_DOUBLE_FLOAT, AMMSC_MIN):
CHA_AGG_MAX (double, >);
case AGG_C (DV_DOUBLE_FLOAT, AMMSC_MAX):
CHA_AGG_MAX (double, <);
}
dep_inx++;
}
END_DO_SET ();
}
void
chash_to_any (chash_t * ch, int col)
{
/* convert the given key col to anies and rehash */
}
void
gb_arr_to_any (int64 * arr, int n, db_buf_t any_temp, int *any_temp_fill)
{
GPF_T1 ("gb col cast to any not done");
}
void
chash_array (int64 * arr, uint64 * hash_no, dtp_t chdtp, int first_set, int last_set, int elt_sz)
{
int inx;
if (DV_ANY == chdtp)
{
db_buf_t *any_arr = (db_buf_t *) arr;
for (inx = 0; inx < last_set - first_set - 4; inx += 4)
{
int l1, l2, l3, l4;
DB_BUF_TLEN (l1, any_arr[inx][0], any_arr[inx]);
DB_BUF_TLEN (l2, any_arr[inx + 1][0], any_arr[inx + 1]);
DB_BUF_TLEN (l3, any_arr[inx + 2][0], any_arr[inx + 2]);
DB_BUF_TLEN (l4, any_arr[inx + 3][0], any_arr[inx + 3]);
MHASH_VAR (hash_no[inx], any_arr[inx], l1);
MHASH_VAR (hash_no[inx + 1], any_arr[inx + 1], l2);
MHASH_VAR (hash_no[inx + 2], any_arr[inx + 2], l3);
MHASH_VAR (hash_no[inx + 3], any_arr[inx + 3], l4);
}
for (; inx < last_set - first_set; inx++)
{
int l1;
DB_BUF_TLEN (l1, any_arr[inx][0], any_arr[inx]);
MHASH_VAR (hash_no[inx], any_arr[inx], l1);
}
return;
}
else
{
switch (elt_sz)
{
case 4:
for (inx = 0; inx < last_set - first_set; inx++)
{
uint32 d = ((uint32 *) arr)[inx];
MHASH_STEP (hash_no[inx], (uint64) d);
}
break;
case 8:
for (inx = 0; inx < last_set - first_set; inx++)
{
uint64 d = ((uint64 *) arr)[inx];
MHASH_STEP (hash_no[inx], (uint64) d);
}
break;
case DT_LENGTH:
for (inx = 0; inx < last_set - first_set; inx++)
{
uint64 d = *(uint64 *) ((db_buf_t) arr + inx * DT_LENGTH);
MHASH_STEP (hash_no[inx], (uint64) d);
}
break;
}
}
}
void
dc_boxes_to_anies (data_col_t * dc, caddr_t * boxes, int n)
{
/* boxes is an array of n boxes. Change these into n anies allocd from the dc's temp */
int inx;
dtp_t save_dtp = dc->dc_dtp;
dtp_t save_type = dc->dc_type;
db_buf_t save_val = dc->dc_values;
int save_fill = dc->dc_n_values;
int save_sz = dc->dc_n_places;
dc->dc_dtp = DV_ANY;
dc->dc_type = 0;
dc->dc_values = (db_buf_t) boxes;
dc->dc_n_places = n;
dc->dc_n_values = 0;
for (inx = 0; inx < n; inx++)
dc_append_box (dc, boxes[inx]);
dc->dc_dtp = save_dtp;
dc->dc_type = save_type;
dc->dc_values = save_val;
dc->dc_n_values = save_fill;
dc->dc_n_places = save_sz;
}
int64
dv_to_int (db_buf_t dv, dtp_t * nf)
{
if (!IS_BOX_POINTER (dv))
return (int64) (ptrlong) dv;
if (DV_LONG_INT == *dv)
return LONG_REF_NA (dv + 1);
if (DV_SHORT_INT == *dv)
return *(char *) (dv + 1);
if (DV_INT64 == *dv)
return INT64_REF_NA (dv + 1);
*nf = 1;
return 0x8000000000000000;
}
double
dv_to_double (db_buf_t dv, dtp_t * nf)
{
dtp_t dtp = *dv;
double d;
float f;
switch (dtp)
{
case DV_DOUBLE_FLOAT:
EXT_TO_DOUBLE (&d, (dv + 1));
return d;
case DV_SINGLE_FLOAT:
EXT_TO_FLOAT (&f, (dv + 1));
return f;
case DV_SHORT_INT:
return (double) *(char *) (dv + 1);
case DV_LONG_INT:
return (double) LONG_REF_NA (dv + 1);
case DV_INT64:
return (double) INT64_REF (dv + 1);
default:
*nf = 1;
return DBL_NAN;
}
}
iri_id_t
dv_to_iri (db_buf_t dv, dtp_t * nf)
{
if (DV_IRI_ID == *dv)
return (iri_id_t) (uint32) LONG_REF_NA (dv + 1);
else if (DV_IRI_ID_8 == *dv)
return (iri_id_t) INT64_REF_NA (dv + 1);
else
{
*nf = 1;
return 0;
}
}
void
dv_to_dt (db_buf_t dt, db_buf_t dv, dtp_t * nf)
{
if (DV_DATETIME == *dv)
{
memcpy_dt (dt, dv + 1);
}
else
{
*nf = 1;
memzero (dt, DT_LENGTH);
}
}
#define DV_ANY_TO_TYPE(temp, fill, dt, func) \
for (inx = 0; inx < fill; inx++) ((dt*)temp)[inx] = func (((db_buf_t*)temp)[inx], nulls + inx);
void
gv_any_to_typed (int64 * temp, dtp_t chdtp, int fill, dtp_t * nulls)
{
/* it can be there is a dc of anies for a hash fill with typed. */
int inx;
switch (chdtp)
{
case DV_SINGLE_FLOAT:
DV_ANY_TO_TYPE (temp, fill, float, dv_to_double);
break;
case DV_DOUBLE_FLOAT:
DV_ANY_TO_TYPE (temp, fill, double, dv_to_double);
break;
case DV_IRI_ID:
case DV_IRI_ID_8:
DV_ANY_TO_TYPE (temp, fill, iri_id_t, dv_to_iri);
break;
case DV_LONG_INT:
case DV_INT64:
case DV_SHORT_INT:
DV_ANY_TO_TYPE (temp, fill, int64, dv_to_int);
break;
case DV_DATETIME:
for (inx = fill - 1; inx >= 0; inx--)
{
db_buf_t dt = ((db_buf_t) temp) + inx * DT_LENGTH;
dv_to_dt (dt, ((db_buf_t *) temp)[inx], nulls);
}
}
}
int64 *
gb_values (chash_t * cha, uint64 * hash_no, caddr_t * inst, state_slot_t * ssl, int nth, int first_set, int last_set,
db_buf_t temp_space, db_buf_t any_temp, int *any_temp_fill, dtp_t * nulls, int clear_nulls)
{
/* accumulate hash nos and optionally change col to anies */
int dc_temp_anies = 0;
int64 *temp = NULL;
int sets[ARTM_VEC_LEN];
int64 *arr = NULL;
data_col_t *dc = QST_BOX (data_col_t *, inst, ssl->ssl_index);
int elt_sz, inx, ninx;
dtp_t chdtp = cha->cha_sqt[nth].sqt_dtp;
char is_fill = HA_FILL == cha->cha_ha->ha_op;
if (!dc)
sqlr_new_error ("42000", "VEC..", "hash fill outer not supported");
if (clear_nulls)
{
/* a group by or distinct has null flags for every col, a hash filler has one per row, so the first null skips the row */
if (!is_fill)
nulls += nth * ARTM_VEC_LEN;
memzero (nulls, last_set - first_set);
}
if (DV_ANY == chdtp && DV_ANY != dc->dc_dtp && !(DCT_BOXES & dc->dc_type))
{
dc_heterogenous (dc);
}
elt_sz = dc_elt_size (dc);
if ((DCT_BOXES & dc->dc_type) && SSL_VEC == ssl->ssl_type)
arr = (int64 *) (dc->dc_values + first_set * elt_sz);
else if (SSL_VEC == ssl->ssl_type && dc->dc_dtp == chdtp)
{
arr = (int64 *) (dc->dc_values + first_set * elt_sz);
if (dc->dc_any_null && dc->dc_nulls)
{
for (ninx = first_set; ninx < last_set; ninx++)
{
if (DC_IS_NULL (dc, ninx))
{
nulls[ninx - first_set] = 1;
memzero (dc->dc_values + ninx * elt_sz, elt_sz);
}
}
}
}
else if (SSL_VEC == ssl->ssl_type && dc->dc_dtp == DV_ANY && DV_ANY != chdtp)
{
temp = (int64 *) & temp_space[nth * ARTM_VEC_LEN * DT_LENGTH];
arr = (int64 *) (dc->dc_values + first_set * elt_sz);
memcpy_16 (temp, arr, sizeof (int64) * (last_set - first_set));
gv_any_to_typed (temp, chdtp, last_set - first_set, nulls);
arr = temp;
if (dc->dc_any_null)
{
for (ninx = first_set; ninx < last_set; ninx++)
{
if (DV_DB_NULL == *(((db_buf_t *) dc->dc_values)[ninx]))
{
nulls[ninx - first_set] = 1;
memzero (dc->dc_values + ninx * elt_sz, elt_sz);
}
}
}
}
else if (SSL_REF == ssl->ssl_type)
{
temp = (int64 *) & temp_space[nth * ARTM_VEC_LEN * DT_LENGTH];
sslr_n_consec_ref (inst, (state_slot_ref_t *) ssl, sets, first_set, last_set - first_set);
switch (elt_sz)
{
case 4:
for (inx = 0; inx < last_set - first_set; inx++)
((int32 *) temp)[inx] = ((int32 *) dc->dc_values)[sets[inx]];
break;
case 8:
for (inx = 0; inx < last_set - first_set; inx++)
((int64 *) temp)[inx] = ((int64 *) dc->dc_values)[sets[inx]];
if (DV_ANY == dc->dc_dtp && DV_ANY != chdtp)
gv_any_to_typed (temp, chdtp, last_set - first_set, nulls);
break;
case DT_LENGTH:
for (inx = 0; inx < last_set - first_set; inx++)
memcpy_dt (((db_buf_t) temp) + DT_LENGTH * inx, dc->dc_values + sets[inx] * DT_LENGTH);
break;
}
if (dc->dc_any_null)
{
if (DV_ANY == dc->dc_dtp)
{
for (ninx = 0; ninx < last_set - first_set; ninx++)
{
if (DV_DB_NULL == *((db_buf_t *) dc->dc_values)[sets[ninx]])
{
nulls[ninx] = 1;
}
}
}
else if (dc->dc_nulls)
{
for (ninx = 0; ninx < last_set - first_set; ninx++)
{
if (DC_IS_NULL (dc, sets[ninx]))
{
nulls[ninx] = 1;
memzero (dc->dc_values + sets[ninx] * elt_sz, elt_sz);
}
}
}
}
arr = (int64 *) temp;
}
else
GPF_T1 ("for gb_values, unsupported dc type/dtp combination");
if (DCT_BOXES & dc->dc_type)
{
/* make the arr into an array of anies from an array of boxes, alloc in the dc pool */
if (!temp)
{
temp = (int64 *) &temp_space[nth * ARTM_VEC_LEN * DT_LENGTH];
memcpy_16 (temp, arr, (last_set - first_set) * sizeof (caddr_t));
arr = temp;
}
dc_boxes_to_anies (dc, (caddr_t *) arr, last_set - first_set);
dc_temp_anies = 1;
}
chash_array (arr, hash_no, chdtp, first_set, last_set, elt_sz);
if (dc_temp_anies)
dc_reset_alloc (dc);
return arr;
}
int64 *
cha_new_row (hash_area_t * ha, chash_t * cha, int is_next)
{
chash_page_t *chp = cha->cha_current, *chp2;
int off = chp->h.h.chp_fill;
int len = is_next ? cha->cha_next_len : cha->cha_first_len;
if (off + len < PAGE_DATA_SZ)
{
chp->h.h.chp_fill += len;
cha->cha_count++;
return (int64 *) & chp->chp_data[off];
}
if (chp->h.h.chp_next && 0 == chp->h.h.chp_next->h.h.chp_fill)
{
cha->cha_current = chp->h.h.chp_next;
return cha_new_row (ha, cha, is_next);
}
if (cha->cha_is_parallel)
mutex_enter (&cha_alloc_mtx);
chp2 = (chash_page_t *) mp_alloc_box_ni (cha->cha_pool, PAGE_SZ, DV_NON_BOX);
if (cha->cha_is_parallel)
mutex_leave (&cha_alloc_mtx);
memset (chp2, 0, DP_DATA);
if (cha->cha_init_page)
{
chp2->h.h.chp_next = cha->cha_init_page;
cha->cha_init_page = chp2;
cha->cha_current = cha->cha_init_page;
}
else
{
chp2->h.h.chp_next = chp;
cha->cha_current = chp2;
}
return cha_new_row (ha, cha, is_next);
}
db_buf_t
cha_any (chash_t * cha, db_buf_t dv)
{
chash_page_t *chp = cha->cha_current_data, *chp2;
int off;
int len;
unsigned char dvnull[1] = {DV_DB_NULL};
if (!chp)
{
if (cha->cha_is_parallel)
mutex_enter (&cha_alloc_mtx);
chp = cha->cha_current_data = (chash_page_t *) mp_alloc_box_ni (cha->cha_pool, PAGE_SZ, DV_NON_BOX);
if (cha->cha_is_parallel)
mutex_leave (&cha_alloc_mtx);
memset (chp, 0, DP_DATA);
}
off = chp->h.h.chp_fill;
if (!dv) dv = dvnull;
DB_BUF_TLEN (len, dv[0], dv);
if (len > chash_max_key_len)
{
len = chash_max_key_len;
cha->cha_error = 1;
}
if (off + len < PAGE_DATA_SZ)
{
chp->h.h.chp_fill += len;
memcpy (&chp->chp_data[off], dv, len);
return &chp->chp_data[off];
}
if (chp->h.h.chp_next && !chp->h.h.chp_next->h.h.chp_fill)
{
cha->cha_current_data = chp->h.h.chp_next;
return cha_any (cha, dv);
}
if (cha->cha_is_parallel)
mutex_enter (&cha_alloc_mtx);
chp2 = (chash_page_t *) mp_alloc_box_ni (cha->cha_pool, PAGE_SZ, DV_NON_BOX);
if (cha->cha_is_parallel)
mutex_leave (&cha_alloc_mtx);
memset (chp2, 0, DP_DATA);
chp2->h.h.chp_next = chp;
cha->cha_current_data = chp2;
return cha_any (cha, dv);
}
db_buf_t
cha_dt (chash_t * cha, db_buf_t dt)
{
dtp_t hd[2];
db_buf_t place;
hd[0] = DV_SHORT_STRING_SERIAL;
hd[1] = DT_LENGTH - 2;
place = cha_any (cha, hd);
memcpy_dt (place, dt);
return place;
}
int64
cha_fixed (chash_t * cha, data_col_t * dc, int set, int *is_null)
{
dtp_t tmp[DT_LENGTH + 1];
if (dc->dc_nulls && dc->dc_any_null && DC_IS_NULL (dc, set))
{
*is_null = 1;
return 0;
}
switch (dc->dc_dtp)
{
case DV_LONG_INT:
case DV_IRI_ID:
case DV_DOUBLE_FLOAT:
return ((int64 *) dc->dc_values)[set];
case DV_SINGLE_FLOAT:
return (int64) ((int32 *) dc->dc_values)[set];
case DV_DATETIME:
{
tmp[0] = DV_DATETIME;
memcpy_dt (&tmp[1], dc->dc_values + set * DT_LENGTH);
return (ptrlong) cha_any (cha, tmp) + 1;
}
default:
if (DCT_BOXES & dc->dc_type)
{
caddr_t cp = box_copy_tree (((caddr_t *) dc->dc_values)[set]);
mutex_enter (&cha_alloc_mtx);
mp_trash (cha->cha_pool, cp);
mutex_leave (&cha_alloc_mtx);
return (uptrlong) cp;
}
GPF_T1 ("bad dc dtp in hash join build");
}
return 0;
}
#define NULL_B_DEP \
*is_null = (dc->dc_any_null && dc->dc_nulls && BIT_IS_SET (dc->dc_nulls, set))
int64
setp_non_agg_dep (setp_node_t * setp, caddr_t * inst, int nth_col, int set, char * is_null)
{
/* gb has after aggs non-agg non-key dependents. Set when creating the group */
state_slot_t *ssl = setp->setp_ha->ha_slots[nth_col];
data_col_t *dc = QST_BOX (data_col_t *, inst, ssl->ssl_index);
set = sslr_set_no (inst, ssl, set);
switch (dc->dc_dtp)
{
case DV_ANY:
return (int64) ((db_buf_t *) dc->dc_values)[set];
case DV_LONG_INT:
case DV_DOUBLE_FLOAT:
case DV_IRI_ID:
case DV_IRI_ID_8:
NULL_B_DEP;
return (int64) ((db_buf_t *) dc->dc_values)[set];
case DV_SINGLE_FLOAT:
NULL_B_DEP;
return ((uint32 *) dc->dc_values)[set];
case DV_DATETIME:
NULL_B_DEP;
return (int64) & dc->dc_values[set * DT_LENGTH];
default:
{
caddr_t box;
if (!(DCT_BOXES & dc->dc_type))
GPF_T1 ("unsupported dc dtp in non-agg dep of setp");
box = ((caddr_t*)dc->dc_values)[set];
*is_null = 2 | (DV_DB_NULL == DV_TYPE_OF (box));
return (int64)box;
}
}
return 0;
}
int
cha_is_null (setp_node_t * setp, caddr_t * inst, int nth_col, int row_no)
{
state_slot_t *ssl = setp->setp_ha->ha_slots[nth_col];
data_col_t *dc = QST_BOX (data_col_t *, inst, ssl->ssl_index);
if (!dc->dc_any_null)
return 0;
if (SSL_REF == ssl->ssl_type)
row_no = sslr_set_no (inst, ssl, row_no);
return dc_is_null (dc, row_no);
}
int64 *
cha_new_gb (setp_node_t * setp, caddr_t * inst, db_buf_t ** key_vecs, chash_t * cha, uint64 hash_no, int row_no, int base,
dtp_t * nulls)
{
hash_area_t *ha = setp->setp_ha;
int nth_col, n_cols;
int64 *row = cha_new_row (ha, cha, 0);
row[0] = hash_no;
for (nth_col = 0; nth_col < ha->ha_n_keys; nth_col++)
{
if (DV_ANY == cha->cha_sqt[nth_col].sqt_dtp)
{
db_buf_t dv = ((db_buf_t **) key_vecs)[nth_col][row_no];
row[nth_col + 1] = (ptrlong) cha_any (cha, dv);
}
else if (DV_DATETIME == cha->cha_sqt[nth_col].sqt_dtp)
{
db_buf_t dt = &((db_buf_t *) key_vecs)[nth_col][row_no * DT_LENGTH];
GB_HAS_VALUE (ha, row, nth_col);
row[nth_col + 1] = (ptrlong) cha_dt (cha, dt);
}
else if (DV_SINGLE_FLOAT == cha->cha_sqt[nth_col].sqt_dtp)
{
GB_HAS_VALUE (ha, row, nth_col);
row[nth_col + 1] = ((int32 **) key_vecs)[nth_col][row_no];
}
else
{
GB_HAS_VALUE (ha, row, nth_col);
row[nth_col + 1] = ((int64 **) key_vecs)[nth_col][row_no];
}
if (!cha->cha_sqt[nth_col].sqt_non_null && nulls && nulls[nth_col * ARTM_VEC_LEN + row_no])
GB_NO_VALUE (ha, row, nth_col);
}
DO_SET (gb_op_t *, go, &setp->setp_gb_ops)
{
if (AMMSC_COUNTSUM == go->go_op || AMMSC_COUNT == go->go_op)
{
row[nth_col + 1] = 0;
GB_HAS_VALUE (ha, row, nth_col);
}
else if (AMMSC_MAX == go->go_op || AMMSC_MIN == go->go_op)
{
row[nth_col + 1] = 0; /* may involve boxes, so init */
GB_NO_VALUE (ha, row, nth_col);
}
else if (AMMSC_SUM == go->go_op && !cha->cha_sqt[nth_col].sqt_non_null && cha_is_null (setp, inst, nth_col, row_no + base))
{
row[nth_col + 1] = 0;
GB_NO_VALUE (ha, row, nth_col);
}
else
{
row[nth_col + 1] = 0;
GB_HAS_VALUE (ha, row, nth_col);
}
nth_col++;
}
END_DO_SET ();
n_cols = ha->ha_n_keys + ha->ha_n_deps;
for (; nth_col < n_cols; nth_col++)
{
char is_null = 0;
int64 val = setp_non_agg_dep (setp, inst, nth_col, row_no + base, &is_null);
if (2 & is_null)
{
caddr_t err = NULL;
if (!(is_null & 1))
GB_HAS_VALUE (ha, row, nth_col);
if (DV_ANY == cha->cha_sqt[nth_col].sqt_dtp)
{
if (!cha->cha_is_parallel)
row[nth_col + 1] = (int64) mp_box_to_any_1 ((caddr_t) val, &err, cha->cha_pool, DKS_TO_DC);
else
{
caddr_t box = box_to_any_1 ((caddr_t) val, &err, NULL, DKS_TO_DC);
row[nth_col + 1] = (int64) cha_any (cha, (db_buf_t) box);
dk_free_box (box);
}
}
else if (DV_ARRAY_OF_POINTER == cha->cha_sqt[nth_col].sqt_dtp)
{
row[nth_col + 1] = (int64) box_copy_tree ((caddr_t) val);
}
else
{
row[nth_col + 1] = 0;
}
}
else if (DV_ANY == cha->cha_sqt[nth_col].sqt_dtp)
{
row[nth_col + 1] = (ptrlong) cha_any (cha, (db_buf_t) (ptrlong) val);
}
else if (DV_DATETIME == cha->cha_sqt[nth_col].sqt_dtp)
{
if (!is_null)
GB_HAS_VALUE (ha, row, nth_col);
row[nth_col + 1] = (ptrlong) cha_dt (cha, (db_buf_t) val);
}
else
{
if (!is_null)
GB_HAS_VALUE (ha, row, nth_col);
row[nth_col + 1] = val;
}
}
return row;
}
#define CHA_IS_NULL(cha, is_cont, row, inx) \
(((db_buf_t)row)[(int)cha->cha_null_flags - (is_cont ? (cha->cha_n_keys + !cha->cha_is_1_int_key) * sizeof (int64) : 0) + ((inx) >> 3)] & (1 << ((inx) & 0x7)))
#define CHA_SET_NULL(cha, is_cont, row, inx) \
(((db_buf_t)row)[(int)cha->cha_null_flags - (is_cont ? cha->cha_n_keys * sizeof (int64) : 0) + ((inx) >> 3)] |= (1 << ((inx) & 0x7)))
int64 *
cha_new_hj_row (setp_node_t * setp, caddr_t * inst, db_buf_t ** key_vecs, chash_t * cha, uint64 hash_no, int row_no, int64 * prev)
{
QNCAST (query_instance_t, qi, inst);
hash_area_t *ha = setp->setp_ha;
int nth_col;
int64 *row = cha_new_row (ha, cha, prev != NULL);
int fill = 0, nn;
if ((nn = cha->cha_null_flags))
{
if (prev)
nn -= cha->cha_first_len - cha->cha_next_len;
memset ((db_buf_t) row + nn, 0, ALIGN_8 (ha->ha_n_deps) / 8);
}
if (!prev)
{
if (!cha->cha_is_1_int_key)
row[fill++] = hash_no;
for (nth_col = 0; nth_col < ha->ha_n_keys; nth_col++)
{
dtp_t chdtp = cha->cha_sqt[nth_col].sqt_dtp;
if (DV_ANY == chdtp)
{
db_buf_t dv = ((db_buf_t **) key_vecs)[nth_col][row_no];
row[fill++] = (ptrlong) cha_any (cha, dv);
}
else if (DV_DATETIME == chdtp)
{
db_buf_t dt = &((db_buf_t *) key_vecs)[nth_col][row_no * DT_LENGTH];
row[fill++] = (ptrlong) cha_dt (cha, dt);
}
else if (DV_SINGLE_FLOAT == chdtp)
row[fill++] = (uint64) ((int32 **) key_vecs)[nth_col][row_no];
else
row[fill++] = ((int64 **) key_vecs)[nth_col][row_no];
}
}
else
nth_col = ha->ha_n_keys;
for (; nth_col < ha->ha_n_keys + ha->ha_n_deps; nth_col++)
{
state_slot_t *ssl = ha->ha_slots[nth_col];
data_col_t *dc = QST_BOX (data_col_t *, inst, ssl->ssl_index);
int set_no = qi->qi_set + row_no;
AUTO_POOL (500);
if (SSL_REF == ssl->ssl_type)
set_no = sslr_set_no (inst, ssl, set_no);
if (DV_ANY == cha->cha_sqt[nth_col].sqt_dtp)
{
if (DCT_BOXES & dc->dc_type)
{
caddr_t cp = box_copy_tree (((db_buf_t *) dc->dc_values)[set_no]);
row[fill++] = (int64) cp;
/* XXX: causes double free
mutex_enter (&cha_alloc_mtx);
mp_trash (cha->cha_pool, cp);
mutex_leave (&cha_alloc_mtx);
*/
}
else
row[fill++] = (ptrlong) cha_any (cha, ((db_buf_t *) dc->dc_values)[set_no]);
}
else
{
int is_null = 0;