# If DBO_TRX is set, start a transaction
if ( ( $this->mFlags & DBO_TRX ) && !$this->trxLevel() &&
- $sql != 'BEGIN' && $sql != 'COMMIT' && $sql != 'ROLLBACK'
- ) {
- $this->begin();
+ $sql != 'BEGIN' && $sql != 'COMMIT' && $sql != 'ROLLBACK') {
+ // avoid establishing transactions for SHOW and SET statements too -
+ // that would delay transaction initializations to once connection
+ // is really used by application
+ $sqlstart = substr($sql,0,10); // very much worth it, benchmark certified(tm)
+ if (strpos($sqlstart,"SHOW ")!==0 and strpos($sqlstart,"SET ")!==0)
+ $this->begin();
}
if ( $this->debug() ) {