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Bugfix: LOCK TABLES needs to be done before DISABLE KEYS. MySQL seemingly does not always enforce this correctly? Either way, it's the correct semantics, to prevent other writers leaving data in the table after keys has been disabled but before HeidiSQL locks it.

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rosenfield
2007-11-06 13:07:39 +00:00
parent 65cfbd462d
commit 6d326739c2
1 changed files with 3 additions and 3 deletions
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6
source/exportsql.pas
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@ -962,20 +962,20 @@ begin
begin
if tofile then
begin
wfs(f, fixSQL( '/*!40000 ALTER TABLE '+ destMask(checkListTables.Items[i]) +' DISABLE KEYS;*/', target_version) );
wfs(f, 'LOCK TABLES '+ destMask(checkListTables.Items[i]) +' WRITE;' );
wfs(f, fixSQL( '/*!40000 ALTER TABLE '+ destMask(checkListTables.Items[i]) +' DISABLE KEYS;*/', target_version) );
end
else if todb then
begin
cwin.ExecUpdateQuery( 'LOCK TABLES ' + sourceMask(destDb) + '.' + sourceMask(checkListTables.Items[i])+ ' WRITE, ' + sourceMask(sourceDb) + '.' + sourceMask(checkListTables.Items[i])+ ' WRITE');
if target_version > 40000 then
cwin.ExecUpdateQuery( 'ALTER TABLE ' + sourceMask(destDb) + '.' + sourceMask(checkListTables.Items[i])+ ' DISABLE KEYS' );
cwin.ExecUpdateQuery( 'LOCK TABLES ' + sourceMask(destDb) + '.' + sourceMask(checkListTables.Items[i])+ ' WRITE, ' + sourceMask(sourceDb) + '.' + sourceMask(checkListTables.Items[i])+ ' WRITE');
end
else if tohost then
begin
RemoteExecNonQuery(win2export, 'LOCK TABLES ' + destMask(destDb) + '.' + destMask(checkListTables.Items[i]) + ' WRITE');
if target_version > 40000 then
RemoteExecNonQuery(win2export, 'ALTER TABLE ' + destMask(destDb) + '.' + destMask(checkListTables.Items[i]) + ' DISABLE KEYS');
RemoteExecNonQuery(win2export, 'LOCK TABLES ' + destMask(destDb) + '.' + destMask(checkListTables.Items[i]) + ' WRITE');
end;
end;