Skip to content

Fix prepared statement #734

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 5 commits into from
Jan 13, 2018
Merged

Fix prepared statement #734

Changes from 1 commit
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
40352b0
Fix prepared statement
methane Jan 8, 2018
2954ddc
Change minimum size of LONG_DATA to 64byte
methane Jan 8, 2018
475ca26
Add test which reproduce issue 730
methane Jan 10, 2018
2661e90
TestPreparedManyCols test only numParams = 65535 case
methane Jan 10, 2018
d08f145
s/as possible//
methane Jan 13, 2018
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 7 additions & 2 deletions packets.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -912,6 +912,11 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
const minPktLen = 4 + 1 + 4 + 1 + 4
mc := stmt.mc

longDataSize := mc.maxAllowedPacket / stmt.paramCount
if longDataSize < 16 {
longDataSize = 16
}
Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Maybe, 16byte is too short?


// Reset packet-sequence
mc.sequence = 0

Expand Down Expand Up @@ -1039,7 +1044,7 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
paramTypes[i+i] = byte(fieldTypeString)
paramTypes[i+i+1] = 0x00

if len(v) < mc.maxAllowedPacket-pos-len(paramValues)-(len(args)-(i+1))*64 {
if len(v) < longDataSize {
paramValues = appendLengthEncodedInteger(paramValues,
uint64(len(v)),
)
Expand All @@ -1061,7 +1066,7 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
paramTypes[i+i] = byte(fieldTypeString)
paramTypes[i+i+1] = 0x00

if len(v) < mc.maxAllowedPacket-pos-len(paramValues)-(len(args)-(i+1))*64 {
if len(v) < longDataSize {
paramValues = appendLengthEncodedInteger(paramValues,
uint64(len(v)),
)
Expand Down