[tarantool-patches] [PATCH v5 1/1] sql: return all generated ids via IPROTO
imeevma at tarantool.org
imeevma at tarantool.org
Fri Sep 28 19:53:25 MSK 2018
According to documentation some JDBC functions have an ability to
return all ids that were generated in executed INSERT statement.
This patch gives a way to implement such functionality.
Closes #2618
---
Branch: https://github.com/tarantool/tarantool/tree/imeevma/gh-2618-return-all-generated-ids
Issue: https://github.com/tarantool/tarantool/issues/2618
src/box/execute.c | 24 ++++++++++++++++
src/box/execute.h | 1 +
src/box/lua/net_box.c | 21 ++++++++++++--
src/box/sequence.c | 29 ++++++++++++++++++++
src/box/sql/vdbe.c | 2 +-
src/box/sql/vdbe.h | 3 +-
src/box/sql/vdbeInt.h | 3 ++
src/box/sql/vdbeaux.c | 15 ++++++++--
src/box/txn.h | 13 +++++++++
test/sql/iproto.result | 71 ++++++++++++++++++++++++++++++++++++++++++++++++
test/sql/iproto.test.lua | 15 ++++++++++
11 files changed, 190 insertions(+), 7 deletions(-)
diff --git a/src/box/execute.c b/src/box/execute.c
index 24459b4..d9fe33f 100644
--- a/src/box/execute.c
+++ b/src/box/execute.c
@@ -42,6 +42,7 @@
#include "schema.h"
#include "port.h"
#include "tuple.h"
+#include "sql/vdbeInt.h"
const char *sql_type_strs[] = {
NULL,
@@ -639,14 +640,37 @@ err:
assert(port_tuple->size == 0);
if (iproto_reply_map_key(out, 1, IPROTO_SQL_INFO) != 0)
goto err;
+ struct stailq *id_list = &((struct Vdbe *)stmt)->id_list;
+ uint64_t id_count = 0;
int changes = sqlite3_changes(db);
int size = mp_sizeof_uint(SQL_INFO_ROW_COUNT) +
mp_sizeof_uint(changes);
+ if (stailq_empty(id_list) == 0) {
+ struct id_entry *id_entry;
+ stailq_foreach_entry(id_entry, id_list, link) {
+ size += id_entry->id >= 0 ?
+ mp_sizeof_uint(id_entry->id) :
+ mp_sizeof_int(id_entry->id);
+ id_count++;
+ }
+ size += mp_sizeof_uint(SQL_INFO_GENERATED_IDS) +
+ mp_sizeof_array(id_count);
+ }
char *buf = obuf_alloc(out, size);
if (buf == NULL) {
diag_set(OutOfMemory, size, "obuf_alloc", "buf");
goto err;
}
+ if (id_count > 0) {
+ buf = mp_encode_uint(buf, SQL_INFO_GENERATED_IDS);
+ buf = mp_encode_array(buf, id_count);
+ struct id_entry *id_entry;
+ stailq_foreach_entry(id_entry, id_list, link) {
+ buf = id_entry->id >= 0 ?
+ mp_encode_uint(buf, id_entry->id) :
+ mp_encode_int(buf, id_entry->id);
+ }
+ }
buf = mp_encode_uint(buf, SQL_INFO_ROW_COUNT);
buf = mp_encode_uint(buf, changes);
}
diff --git a/src/box/execute.h b/src/box/execute.h
index f21393b..614d3d0 100644
--- a/src/box/execute.h
+++ b/src/box/execute.h
@@ -42,6 +42,7 @@ extern "C" {
/** Keys of IPROTO_SQL_INFO map. */
enum sql_info_key {
SQL_INFO_ROW_COUNT = 0,
+ SQL_INFO_GENERATED_IDS = 1,
sql_info_key_MAX,
};
diff --git a/src/box/lua/net_box.c b/src/box/lua/net_box.c
index a928a4c..5d2ac78 100644
--- a/src/box/lua/net_box.c
+++ b/src/box/lua/net_box.c
@@ -671,11 +671,28 @@ netbox_decode_sql_info(struct lua_State *L, const char **data)
/* Only SQL_INFO_ROW_COUNT is available. */
assert(map_size == 1);
(void) map_size;
+ lua_newtable(L);
uint32_t key = mp_decode_uint(data);
+ /*
+ * If SQL_INFO_GENERATED_IDS in data then it should be
+ * just before SQL_INFO_ROW_COUNT.
+ */
+ if (key == SQL_INFO_GENERATED_IDS) {
+ uint64_t count = mp_decode_array(data);
+ assert (count > 0);
+ lua_createtable(L, 0, count);
+ lua_setfield(L, -2, "generated_ids");
+ lua_getfield(L, -1, "generated_ids");
+ for (uint32_t j = 0; j < count; ++j) {
+ int64_t value = mp_decode_uint(data);
+ lua_pushinteger(L, value);
+ lua_rawseti(L, -2, j + 1);
+ }
+ lua_pop(L, 1);
+ key = mp_decode_uint(data);
+ }
assert(key == SQL_INFO_ROW_COUNT);
- (void) key;
uint32_t row_count = mp_decode_uint(data);
- lua_createtable(L, 0, 1);
lua_pushinteger(L, row_count);
lua_setfield(L, -2, "rowcount");
}
diff --git a/src/box/sequence.c b/src/box/sequence.c
index 35b7605..ed6b2da 100644
--- a/src/box/sequence.c
+++ b/src/box/sequence.c
@@ -38,6 +38,7 @@
#include <small/mempool.h>
#include <msgpuck/msgpuck.h>
+#include "txn.h"
#include "diag.h"
#include "error.h"
#include "errcode.h"
@@ -178,6 +179,30 @@ sequence_update(struct sequence *seq, int64_t value)
return 0;
}
+/**
+ * Save generated id in VDBE.
+ *
+ * @param value ID to save in VDBE.
+ * @retval 0 Success.
+ * @retval -1 Error.
+ */
+static inline int
+add_new_id_in_vdbe(int64_t value)
+{
+ struct txn *txn = in_txn();
+ if (txn == NULL || txn->psql_txn == NULL)
+ return 0;
+ assert(txn->psql_txn->vdbe != NULL);
+ struct id_entry *id_entry = malloc(sizeof(*id_entry));
+ if (id_entry == NULL) {
+ diag_set(OutOfMemory, sizeof(*id_entry), "malloc", "id_entry");
+ return -1;
+ }
+ id_entry->id = value;
+ stailq_add_tail_entry(txn->psql_txn->id_list, id_entry, link);
+ return 0;
+}
+
int
sequence_next(struct sequence *seq, int64_t *result)
{
@@ -194,6 +219,8 @@ sequence_next(struct sequence *seq, int64_t *result)
new_data) == light_sequence_end)
return -1;
*result = def->start;
+ if(add_new_id_in_vdbe(*result) != 0)
+ return -1;
return 0;
}
old_data = light_sequence_get(&sequence_data_index, pos);
@@ -228,6 +255,8 @@ done:
new_data, &old_data) == light_sequence_end)
unreachable();
*result = value;
+ if(add_new_id_in_vdbe(*result) != 0)
+ return -1;
return 0;
overflow:
if (!def->cycle) {
diff --git a/src/box/sql/vdbe.c b/src/box/sql/vdbe.c
index 00ffb0c..cbec9a2 100644
--- a/src/box/sql/vdbe.c
+++ b/src/box/sql/vdbe.c
@@ -3040,7 +3040,7 @@ case OP_TransactionRollback: {
*/
case OP_TTransaction: {
if (!box_txn()) {
- if (box_txn_begin() != 0) {
+ if (sql_txn_begin(p) != 0) {
rc = SQL_TARANTOOL_ERROR;
goto abort_due_to_error;
}
diff --git a/src/box/sql/vdbe.h b/src/box/sql/vdbe.h
index d5da5d5..9b94183 100644
--- a/src/box/sql/vdbe.h
+++ b/src/box/sql/vdbe.h
@@ -179,10 +179,11 @@ Vdbe *sqlite3VdbeCreate(Parse *);
* Allocate and initialize SQL-specific struct which completes
* original Tarantool's txn struct using region allocator.
*
+ * @param vdbe VDBE that is being prepared or executed.
* @retval NULL on OOM, new psql_txn struct on success.
**/
struct sql_txn *
-sql_alloc_txn();
+sql_alloc_txn(struct Vdbe *vdbe);
/**
* Prepare given VDBE to execution: initialize structs connected
diff --git a/src/box/sql/vdbeInt.h b/src/box/sql/vdbeInt.h
index ce97f49..ca1794c 100644
--- a/src/box/sql/vdbeInt.h
+++ b/src/box/sql/vdbeInt.h
@@ -368,6 +368,9 @@ struct Vdbe {
/** The auto-commit flag. */
bool auto_commit;
+ /** List of id generated in current VDBE. */
+ struct stailq id_list;
+
/* When allocating a new Vdbe object, all of the fields below should be
* initialized to zero or NULL
*/
diff --git a/src/box/sql/vdbeaux.c b/src/box/sql/vdbeaux.c
index 54edf1b..98ddef7 100644
--- a/src/box/sql/vdbeaux.c
+++ b/src/box/sql/vdbeaux.c
@@ -57,6 +57,8 @@ sqlite3VdbeCreate(Parse * pParse)
return 0;
memset(p, 0, sizeof(Vdbe));
p->db = db;
+ /* Init list of generated ids. */
+ stailq_create(&p->id_list);
if (db->pVdbe) {
db->pVdbe->pPrev = p;
}
@@ -75,7 +77,7 @@ sqlite3VdbeCreate(Parse * pParse)
}
struct sql_txn *
-sql_alloc_txn()
+sql_alloc_txn(struct Vdbe *vdbe)
{
struct sql_txn *txn = region_alloc_object(&fiber()->gc,
struct sql_txn);
@@ -86,6 +88,8 @@ sql_alloc_txn()
}
txn->pSavepoint = NULL;
txn->fk_deferred_count = 0;
+ txn->vdbe = vdbe;
+ txn->id_list = &vdbe->id_list;
return txn;
}
@@ -103,7 +107,7 @@ sql_vdbe_prepare(struct Vdbe *vdbe)
* check FK violations, at least now.
*/
if (txn->psql_txn == NULL) {
- txn->psql_txn = sql_alloc_txn();
+ txn->psql_txn = sql_alloc_txn(vdbe);
if (txn->psql_txn == NULL)
return -1;
}
@@ -2261,7 +2265,7 @@ sql_txn_begin(Vdbe *p)
struct txn *ptxn = txn_begin(false);
if (ptxn == NULL)
return -1;
- ptxn->psql_txn = sql_alloc_txn();
+ ptxn->psql_txn = sql_alloc_txn(p);
if (ptxn->psql_txn == NULL) {
box_txn_rollback();
return -1;
@@ -2746,6 +2750,11 @@ sqlite3VdbeClearObject(sqlite3 * db, Vdbe * p)
vdbeFreeOpArray(db, p->aOp, p->nOp);
sqlite3DbFree(db, p->aColName);
sqlite3DbFree(db, p->zSql);
+ while (stailq_empty(&p->id_list) == 0) {
+ struct id_entry *id_entry =
+ stailq_shift_entry(&p->id_list, struct id_entry, link);
+ free(id_entry);
+ }
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
{
int i;
diff --git a/src/box/txn.h b/src/box/txn.h
index e74c14d..f8521c4 100644
--- a/src/box/txn.h
+++ b/src/box/txn.h
@@ -117,6 +117,19 @@ struct sql_txn {
* VDBE to the next in the same transaction.
*/
uint32_t fk_deferred_count;
+ /** Current VDBE. */
+ struct Vdbe *vdbe;
+ /** Pointer to list of generated ids of current VDBE.*/
+ struct stailq *id_list;
+};
+
+/** An element of list of generated ids. */
+struct id_entry
+{
+ /** A link in a generated id list. */
+ struct stailq_entry link;
+ /** Generated id. */
+ int64_t id;
};
struct txn {
diff --git a/test/sql/iproto.result b/test/sql/iproto.result
index af474bc..163fb6e 100644
--- a/test/sql/iproto.result
+++ b/test/sql/iproto.result
@@ -580,6 +580,77 @@ cn:close()
box.sql.execute('drop table test')
---
...
+-- gh-2618 Return generated columns after INSERT in IPROTO.
+-- Return all ids generated in current INSERT statement.
+box.sql.execute('create table test (id integer primary key autoincrement, a integer)')
+---
+...
+cn = remote.connect(box.cfg.listen)
+---
+...
+cn:execute('insert into test values (1, 1)')
+---
+- rowcount: 1
+...
+cn:execute('insert into test values (null, 2)')
+---
+- generated_ids:
+ - 2
+ rowcount: 1
+...
+cn:execute('update test set a = 11 where id == 1')
+---
+- rowcount: 1
+...
+cn:execute('insert into test values (100, 1), (null, 1), (120, 1), (null, 1)')
+---
+- generated_ids:
+ - 101
+ - 121
+ rowcount: 4
+...
+cn:execute('insert into test values (null, 1), (null, 1), (null, 1), (null, 1), (null, 1)')
+---
+- generated_ids:
+ - 122
+ - 123
+ - 124
+ - 125
+ - 126
+ rowcount: 5
+...
+cn:execute('select * from test')
+---
+- metadata:
+ - name: ID
+ - name: A
+ rows:
+ - [1, 11]
+ - [2, 2]
+ - [100, 1]
+ - [101, 1]
+ - [120, 1]
+ - [121, 1]
+ - [122, 1]
+ - [123, 1]
+ - [124, 1]
+ - [125, 1]
+ - [126, 1]
+...
+cn:execute('create table test2 (id integer primary key, a integer)')
+---
+- rowcount: 1
+...
+cn:execute('drop table test2')
+---
+- rowcount: 1
+...
+cn:close()
+---
+...
+box.sql.execute('drop table test')
+---
+...
box.schema.user.revoke('guest', 'read,write,execute', 'universe')
---
...
diff --git a/test/sql/iproto.test.lua b/test/sql/iproto.test.lua
index 220331b..6517cde 100644
--- a/test/sql/iproto.test.lua
+++ b/test/sql/iproto.test.lua
@@ -201,6 +201,21 @@ future4:wait_result()
cn:close()
box.sql.execute('drop table test')
+-- gh-2618 Return generated columns after INSERT in IPROTO.
+-- Return all ids generated in current INSERT statement.
+box.sql.execute('create table test (id integer primary key autoincrement, a integer)')
+cn = remote.connect(box.cfg.listen)
+cn:execute('insert into test values (1, 1)')
+cn:execute('insert into test values (null, 2)')
+cn:execute('update test set a = 11 where id == 1')
+cn:execute('insert into test values (100, 1), (null, 1), (120, 1), (null, 1)')
+cn:execute('insert into test values (null, 1), (null, 1), (null, 1), (null, 1), (null, 1)')
+cn:execute('select * from test')
+cn:execute('create table test2 (id integer primary key, a integer)')
+cn:execute('drop table test2')
+cn:close()
+box.sql.execute('drop table test')
+
box.schema.user.revoke('guest', 'read,write,execute', 'universe')
space = nil
--
2.7.4
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