Enhancement/csv empty to null #19802
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- Adds a new "Import empty values as NULL" checkbox to the CSV import options. When enabled, this setting will convert any empty string values in the imported data to the SQL `NULL` value. - This enhancement ensures that empty fields are not stored as empty strings, which is crucial for columns where a true `NULL` value is required or expected. The logic is applied to both the table analysis and data insertion phases, providing consistent behavior when creating new tables or appending to existing ones. Signed-off-by: Darsh Bhavnani <darshbhavnani@gmail.com>
Signed-off-by: Darsh Bhavnani <darshbhavnani@gmail.com>
By removing this, import automatically treats null string as null value Signed-off-by: Darsh Bhavnani <darshbhavnani@gmail.com>
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Signed-off-by: Darsh Bhavnani <darshbhavnani@gmail.com>
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Thank you @DarshBhavnani! It works as intended. Before: 
After: 
After (with 
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williamdes
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Sep 29, 2025
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This PR adds a feature to add a checkbox in import which allows to treat empty values as null
Fixes #19381
This pull request introduces a new optional feature for CSV data imports. A new checkbox, Import empty values as NULL, has been added to the import settings. When this option is selected, the system will now treat any empty field in the CSV file as a SQL NULL value during the import.
Previously, empty fields were imported as empty strings (''), which could cause issues with database constraints and data integrity for columns intended to be nullable. This enhancement provides users with greater control over their imported data, allowing for more precise data representation.
The changes ensure consistent behavior for both new table creation (the "analyze" mode) and importing into existing tables.