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/*-
* Public Domain 2014-2016 MongoDB, Inc.
* Public Domain 2008-2014 WiredTiger, Inc.
*
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "test_util.h"
/*
* JIRA ticket reference: WT-2447
*
* Test case description: This test case is adapted from the submitted test
* program in the JIRA ticket. We create a database of 10,000 entries, with
* every key i having pair of values (i, i). Create indices on both values,
* and establish a join: table.v1 >= 5000 AND table.v2 < 5001. There's a
* Bloom filter on v2. We expect that although we iterate from 5000 to
* 10000, we'll only have accesses to the main table for key 5000, as
* 5001-10000 will generally not be in the Bloom filter. For key 5000,
* we technically have two accesses to the main table - one occurs when we
* see key 5000 is in the Bloom filter, and we need to do a full test, we
* make an access to the projection table:tablename(v2), that's just to get
* the value of v2, which we'll check by comparison to the cursor at 5001.
* That counts as a main table access, and when we see it is satisfied and
* return the complete set of values, we'll access the main table with the
* full projection (that's the second main table access).
*
* Failure mode: Before fixes of WT-2447, we saw lots of accesses to the main
* table.
*/
void (*custom_die)(void) = NULL;
static int N_RECORDS = 10000;
static int
get_stat_total(WT_SESSION *session, WT_CURSOR *jcursor, const char *descmatch,
uint64_t *pval)
{
WT_CURSOR *statcursor;
char *desc, *valstr;
uint64_t val;
int ret;
bool match;
match = false;
*pval = 0;
testutil_check(session->open_cursor(session, "statistics:join", jcursor,
NULL, &statcursor));
while ((ret = statcursor->next(statcursor)) == 0) {
statcursor->get_value(statcursor, &desc, &valstr, &val);
printf("statistics: %s: %s: %" PRIu64 "\n", desc, valstr, val);
if (strstr(desc, descmatch) != NULL) {
*pval += val;
match = true;
}
}
testutil_assert(ret == WT_NOTFOUND);
testutil_check(statcursor->close(statcursor));
testutil_assert(match);
return (0);
}
int
main(int argc, char *argv[])
{
TEST_OPTS *opts, _opts;
WT_CURSOR *cursor1, *cursor2, *jcursor;
WT_ITEM d;
WT_SESSION *session;
uint64_t maincount;
int half, i, j;
const char *tablename;
char bloom_cfg[128], index1uri[256], index2uri[256], joinuri[256];
opts = &_opts;
memset(opts, 0, sizeof(*opts));
testutil_check(testutil_parse_opts(argc, argv, opts));
testutil_make_work_dir(opts->home);
tablename = strchr(opts->uri, ':');
testutil_assert(tablename != NULL);
tablename++;
snprintf(index1uri, sizeof(index1uri), "index:%s:index1", tablename);
snprintf(index2uri, sizeof(index2uri), "index:%s:index2", tablename);
snprintf(joinuri, sizeof(joinuri), "join:%s", opts->uri);
testutil_check(wiredtiger_open(opts->home, NULL,
"statistics=(all),create", &opts->conn));
testutil_check(
opts->conn->open_session(opts->conn, NULL, NULL, &session));
testutil_check(session->create(session, opts->uri,
"key_format=i,value_format=iiu,columns=(k,v1,v2,d)"));
testutil_check(session->create(session, index1uri, "columns=(v1)"));
testutil_check(session->create(session, index2uri, "columns=(v2)"));
testutil_check(session->open_cursor(session, opts->uri, NULL, NULL,
&cursor1));
d.size = 4100;
d.data = malloc(d.size);
memset((char *)d.data, 7, d.size);
for (i = 0; i < N_RECORDS; ++i)
{
cursor1->set_key(cursor1, i);
cursor1->set_value(cursor1, i, i, &d);
testutil_check(cursor1->insert(cursor1));
}
free((void*)d.data);
testutil_check(opts->conn->close(opts->conn, NULL));
testutil_check(wiredtiger_open(opts->home, NULL,
"statistics=(all),create,cache_size=1GB", &opts->conn));
testutil_check(opts->conn->open_session(opts->conn, NULL, NULL,
&session));
testutil_check(session->open_cursor(session, index1uri, NULL, NULL,
&cursor1));
testutil_check(session->open_cursor(session, index2uri, NULL, NULL,
&cursor2));
half = N_RECORDS / 2;
cursor1->set_key(cursor1, half);
testutil_check(cursor1->search(cursor1));
cursor2->set_key(cursor2, half + 1);
testutil_check(cursor2->search(cursor2));
sprintf(bloom_cfg, "compare=lt,strategy=bloom,count=%u", half);
testutil_check(session->open_cursor(session, joinuri, NULL, NULL,
&jcursor));
testutil_check(session->join(session, jcursor, cursor1, "compare=ge"));
testutil_check(session->join(session, jcursor, cursor2, bloom_cfg));
/* Expect one value returned */
testutil_assert(jcursor->next(jcursor) == 0);
i = 0;
jcursor->get_key(jcursor, &i);
testutil_assert(i == (int)half);
i = j = 0;
memset(&d, 0, sizeof(d));
jcursor->get_value(jcursor, &i, &j, &d);
testutil_assert(i == (int)half);
testutil_assert(j == (int)half);
testutil_assert(d.size == 4100);
for (i = 0; i < 4100; i++)
testutil_assert(((char *)d.data)[i] == 7);
testutil_assert(jcursor->next(jcursor) == WT_NOTFOUND);
/*
* Make sure there have been 2 accesses to the main table,
* explained in the discussion above.
*/
get_stat_total(session, jcursor, "accesses to the main table",
&maincount);
testutil_assert(maincount == 2);
testutil_cleanup(opts);
return (0);
}
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