Fix error in addMonths with floating point argument#12018
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| if (const auto * delta_const_column = typeid_cast<const ColumnConst *>(&delta_column)) | ||
| op.vectorConstant(sources->getData(), col_to->getData(), delta_const_column->getField().get<Int64>(), time_zone); | ||
| op.vectorConstant(sources->getData(), col_to->getData(), delta_const_column->getInt(0), time_zone); |
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Bugfix is in this line.
akuzm
approved these changes
Jun 29, 2020
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Changelog category (leave one):
Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):
When adding floating point number of intervals to date/datetime, the result may be calculated incorrectly. This fixes #11377.
Detailed description:
It is rounded to integer.
You may consider more sophisticated logic but it's way more difficult (say add 1.5 months).