Importing multiple CSV files with one column using multi-byte separators and/or delimiters may cause an unnecessary performance hit.
Details
| Detail name | Value |
|---|---|
| Changelog Number | 29591 |
| Type | Bug |
| Status | Resolved |
| Affected Versions | Exasol 7.1.0, Exasol 8.29.0, Exasol 2025.1.0, Exasol 2025.2.0 |
| Fix Versions | Exasol 2026.1.0, Exasol 2025.1.12 |
| Resolution Date | 2026-05-15 |
Description
When importing multiple CSV files with one column using a multi-byte row separator, column separator, and/or column delimiter, an issue obtaining the column count of the files can lead to the loader checking the column count for each of the files-instead of the just the first one-which may cause an unnecessary performance hit.
Workaround
A workaround would be to avoid using multi-byte separators and/or delimiters, if possible.
Fix
The issue has been fixed such that only the column count of the first file is checked as expected.
