Import-DbaCsv: Add -NoColumnOptimize switch#10195
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potatoqualitee merged 1 commit intodataplat:developmentfrom Mar 5, 2026
Merged
Import-DbaCsv: Add -NoColumnOptimize switch#10195potatoqualitee merged 1 commit intodataplat:developmentfrom
potatoqualitee merged 1 commit intodataplat:developmentfrom
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…n shrinking When using -AutoCreateTable to import multiple CSV files into the same table, the post-import Optimize-ColumnSize step shrinks nvarchar(MAX) columns to fit the first file's data, causing subsequent imports to fail if later CSVs contain longer values. The new -NoColumnOptimize switch skips this step, keeping columns at nvarchar(MAX). Tracks dataplat#10194 (do Import-DbaCsv) Co-Authored-By: Claude Opus 4.6 <[email protected]>
Member
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awsome, thank you 🙏🏼 will release your changes in a few days unless you need it faster. |
Contributor
Author
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No that's fantastic thanks. I'm just running an old version from before the auto-optimize was added for the affected process for now, few more days makes no difference |
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Type of Change
Invoke-ManualPester)Purpose
Allows optional skipping of the schema detection and column resize from NVARCHAR(MAX) after Import-DbaCsv has imported a file using -AutoCreateTable. Useful when importing multiple CSVs to the same table, as without a later CSV with a wider column than the first file would fail due to data truncation
Approach
-NoColumnOptimizeswitch toImport-DbaCsvthat skips the automaticOptimize-ColumnSizestep after-AutoCreateTableimportsnvarchar(MAX)when the switch is set, allowing multiple CSV files to be imported into the same auto-created table without column truncation failures🤖 Generated with Claude Code