[tarantool-patches] [PATCH v1 1/1] sql: do not analyze incorrect statistics
imeevma at tarantool.org
imeevma at tarantool.org
Sat Dec 15 16:39:05 MSK 2018
After this patch, the analysis of statistics in "_sql_stat1" and
"_sql_stat4" with the wrong table name or table index will not be
executed.
Closes #3866
---
https://github.com/tarantool/tarantool/issues/3866
https://github.com/tarantool/tarantool/tree/imeevma/gh-3866-ignore-wrong-data-in-_sql_stat
src/box/sql/analyze.c | 71 +++++++++++++++++++++---------------------
test/sql-tap/analyze1.test.lua | 27 +++++++++++++++-
2 files changed, 62 insertions(+), 36 deletions(-)
diff --git a/src/box/sql/analyze.c b/src/box/sql/analyze.c
index 3f49280..9865407 100644
--- a/src/box/sql/analyze.c
+++ b/src/box/sql/analyze.c
@@ -1222,27 +1222,26 @@ analysis_loader(void *data, int argc, char **argv, char **unused)
UNUSED_PARAMETER2(unused, argc);
if (argv == 0 || argv[0] == 0 || argv[2] == 0)
return 0;
- struct analysis_index_info *info = (struct analysis_index_info *) data;
- assert(info->stats != NULL);
- struct index_stat *stat = &info->stats[info->index_count++];
struct space *space = space_by_name(argv[0]);
if (space == NULL)
- return -1;
- struct index *index;
+ return 0;
uint32_t iid = box_index_id_by_name(space->def->id, argv[1],
strlen(argv[1]));
/*
* Convention is if index's name matches with space's
* one, then it is primary index.
*/
- if (iid != BOX_ID_NIL) {
- index = space_index(space, iid);
- } else {
+ if (iid == BOX_ID_NIL) {
if (sqlite3_stricmp(argv[0], argv[1]) != 0)
- return -1;
- index = space_index(space, 0);
+ return 0;
+ iid = 0;
}
- assert(index != NULL);
+ struct index *index = space_index(space, iid);
+ if (index == NULL)
+ return 0;
+ struct analysis_index_info *info = (struct analysis_index_info *) data;
+ assert(info->stats != NULL);
+ struct index_stat *stat = &info->stats[info->index_count++];
/*
* Additional field is used to describe total
* count of tuples in index. Although now all
@@ -1395,16 +1394,18 @@ load_stat_from_space(struct sqlite3 *db, const char *sql_select_prepare,
continue;
uint32_t sample_count = sqlite3_column_int(stmt, 2);
struct space *space = space_by_name(space_name);
- assert(space != NULL);
- struct index *index;
+ if (space == NULL)
+ continue;
uint32_t iid = box_index_id_by_name(space->def->id, index_name,
strlen(index_name));
- if (sqlite3_stricmp(space_name, index_name) == 0 &&
- iid == BOX_ID_NIL)
- index = space_index(space, 0);
- else
- index = space_index(space, iid);
- assert(index != NULL);
+ if (iid == BOX_ID_NIL) {
+ if (sqlite3_stricmp(space_name, index_name) != 0)
+ continue;
+ iid = 0;
+ }
+ struct index *index = space_index(space, iid);
+ if (index == NULL)
+ continue;
uint32_t column_count = index->def->key_def->part_count;
struct index_stat *stat = &stats[current_idx_count];
stat->sample_field_count = column_count;
@@ -1463,18 +1464,18 @@ load_stat_from_space(struct sqlite3 *db, const char *sql_select_prepare,
if (index_name == NULL)
continue;
struct space *space = space_by_name(space_name);
- assert(space != NULL);
- struct index *index;
+ if (space == NULL)
+ continue;
uint32_t iid = box_index_id_by_name(space->def->id, index_name,
strlen(index_name));
- if (iid != BOX_ID_NIL) {
- index = space_index(space, iid);
- } else {
+ if (iid == BOX_ID_NIL) {
if (sqlite3_stricmp(space_name, index_name) != 0)
- return -1;
- index = space_index(space, 0);
+ continue;
+ iid = 0;
}
- assert(index != NULL);
+ struct index *index = space_index(space, iid);
+ if (index == NULL)
+ continue;
uint32_t column_count = index->def->key_def->part_count;
if (index != prev_index) {
if (prev_index != NULL) {
@@ -1544,18 +1545,18 @@ load_stat_to_index(struct sqlite3 *db, const char *sql_select_load,
if (index_name == NULL)
continue;
struct space *space = space_by_name(space_name);
- assert(space != NULL);
- struct index *index;
+ if (space == NULL)
+ continue;
uint32_t iid = box_index_id_by_name(space->def->id, index_name,
strlen(index_name));
- if (iid != BOX_ID_NIL) {
- index = space_index(space, iid);
- } else {
+ if (iid == BOX_ID_NIL) {
if (sqlite3_stricmp(space_name, index_name) != 0)
- return -1;
- index = space_index(space, 0);
+ continue;
+ iid = 0;
}
- assert(index != NULL);
+ struct index *index = space_index(space, iid);
+ if (index == NULL)
+ continue;
free(index->def->opts.stat);
index->def->opts.stat = stats[current_idx_count++];
}
diff --git a/test/sql-tap/analyze1.test.lua b/test/sql-tap/analyze1.test.lua
index ea414e9..df5aaf8 100755
--- a/test/sql-tap/analyze1.test.lua
+++ b/test/sql-tap/analyze1.test.lua
@@ -1,6 +1,6 @@
#!/usr/bin/env tarantool
test = require("sqltester")
-test:plan(38)
+test:plan(40)
--!./tcltestrunner.lua
-- 2005 July 22
@@ -346,6 +346,31 @@ test:do_execsql_test(
-- </analyze-4.2>
})
+--
+-- gh-3866 Wrong data in _sql_stat* tables leads to SEGMENTATION
+-- FAULT
+--
+test:do_execsql_test(
+ "analyze-4.3",
+ [[
+ DELETE FROM "_sql_stat1";
+ DELETE FROM "_sql_stat4";
+ INSERT INTO "_sql_stat1" VALUES('abc', 'bca', 'cab');
+ ANALYZE t4;
+ ]], {
+ -- <analyze-4.3>
+ -- </analyze-4.3>
+ })
+
+test:do_execsql_test(
+ "analyze-4.4",
+ [[
+ INSERT INTO "_sql_stat4" VALUES('abc', 'bca', 'cab', 'acb', 'bac', 'cba');
+ ANALYZE t4;
+ ]], {
+ -- <analyze-4.4>
+ -- </analyze-4.4>
+ })
-- Verify that DROP TABLE and DROP INDEX remove entries from the
--
2.7.4
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