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Decrease pre calculated number of rows per INSERT, to make that safer against exceeding the popular 1MB max_allowed_packet default setting. Fixes issue #1682.

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Ansgar Becker
2010-02-12 00:25:01 +00:00
parent 8694e49ddc
commit 0e77bba9e4
1 changed files with 2 additions and 2 deletions
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4
source/tabletools.pas
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@ -1113,8 +1113,8 @@ begin
RowCount := 0;
// Calculate limit so we select ~100MB per loop
Limit := Round(100 * SIZE_MB / Max(DBObj.AvgRowLen,1));
// Calculate max rows per INSERT, so we always get ~800KB
MaxRowsInChunk := Round(SIZE_MB * 0.6 / Max(DBObj.AvgRowLen,1));
// Calculate max rows per INSERT, so we should never exceed 1MB per INSERT
MaxRowsInChunk := Round(SIZE_MB * 0.4 / Max(DBObj.AvgRowLen,1));
if comboExportData.Text = DATA_REPLACE then
Output('DELETE FROM '+TargetDbAndObject, True, True, True, True, True);
Output('/*!40000 ALTER TABLE '+TargetDbAndObject+' DISABLE KEYS */', True, True, True, True, True);