[tarantool-patches] [PATCH] sql: bind BLOB value as BLOB not as STRING
Nikita Pettik
korablev at tarantool.org
Mon Mar 18 04:05:58 MSK 2019
It is obvious that BLOB (that is value encoded in msgpack with MP_BIN
format) values must be bound as BLOBs, not as strings. Unfortunately,
they were bound as strings, which lead to wrong resulting type
calculations after execution of SQL statement.
---
Branch: https://github.com/tarantool/tarantool/tree/np/blob-type-binding-fix
Note that no test case is provided since there is not way to
force MP_BIN format using facilities of our testing framework.
Originally, bug was found in Java connector.
src/box/sql/vdbeapi.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/src/box/sql/vdbeapi.c b/src/box/sql/vdbeapi.c
index d7e89073e..be5c9dff9 100644
--- a/src/box/sql/vdbeapi.c
+++ b/src/box/sql/vdbeapi.c
@@ -1313,11 +1313,20 @@ sql_bind_blob(sql_stmt * pStmt,
int i, const void *zData, int nData, void (*xDel) (void *)
)
{
-#ifdef SQL_ENABLE_API_ARMOR
- if (nData < 0)
- return SQL_MISUSE;
-#endif
- return bindText(pStmt, i, zData, nData, xDel);
+ struct Vdbe *p = (Vdbe *) pStmt;
+ int rc = vdbeUnbind(p, i);
+ if (rc == SQL_OK) {
+ if (zData != 0) {
+ struct Mem *var = &p->aVar[i - 1];
+ rc = sqlVdbeMemSetStr(var, zData, nData, 0, xDel);
+ if (rc == SQL_OK)
+ rc = sql_bind_type(p, i, "BLOB");
+ rc = sqlApiExit(p->db, rc);
+ }
+ } else if (xDel != SQL_STATIC && xDel != SQL_TRANSIENT) {
+ xDel((void *)zData);
+ }
+ return rc;
}
int
@@ -1331,7 +1340,7 @@ sql_bind_blob64(sql_stmt * pStmt,
if (nData > 0x7fffffff) {
return invokeValueDestructor(zData, xDel, 0);
} else {
- return bindText(pStmt, i, zData, (int)nData, xDel);
+ return sql_bind_blob(pStmt, i, zData, (int)nData, xDel);
}
}
--
2.15.1
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