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| author | Xu Xinran <xxr@megvii.com> | 2017-06-14 21:22:40 +0800 |
|---|---|---|
| committer | Xu Xinran <xxr@megvii.com> | 2017-06-14 21:22:40 +0800 |
| commit | 3fa7ed217682f0f66953e3c37d7a648bbc5d3e5c (patch) | |
| tree | 035930342ee0510d83ab8ee47e4068bdc50247c3 /sqlite3.go | |
| parent | Treat []byte{} as empty bytes instead of NULL. (diff) | |
| download | golite-3fa7ed217682f0f66953e3c37d7a648bbc5d3e5c.tar.gz golite-3fa7ed217682f0f66953e3c37d7a648bbc5d3e5c.tar.xz | |
Use global variable for better performance.
Diffstat (limited to 'sqlite3.go')
| -rw-r--r-- | sqlite3.go | 7 |
1 files changed, 4 insertions, 3 deletions
@@ -734,6 +734,8 @@ type bindArg struct { v driver.Value } +var placeHolder byte = 0 + func (s *SQLiteStmt) bind(args []namedValue) error { rv := C.sqlite3_reset(s.s) if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE { @@ -755,8 +757,7 @@ func (s *SQLiteStmt) bind(args []namedValue) error { rv = C.sqlite3_bind_null(s.s, n) case string: if len(v) == 0 { - b := []byte{0} - rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(0)) + rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&placeHolder)), C.int(0)) } else { b := []byte(v) rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b))) @@ -774,7 +775,7 @@ func (s *SQLiteStmt) bind(args []namedValue) error { case []byte: var ptr *byte if len(v) == 0 { - ptr = &(make([]byte, 1)[0]) + ptr = &placeHolder } else { ptr = &v[0] } |