MedicOneSystems / MedicOneSystems/livewire-datatables
[SQLSRV] Export checked records fails
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- Dominant language
- PHP
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Description
Using SQLSRV model and trying to export selected records to any format I get the following error:
SQLSTATE[42S22]: [Microsoft][ODBC Driver 17 for SQL Server][SQL Server]Invalid column name 'checkbox_attribute'.
Generated query (simplified):
SELECT
[dba].[mytable].[myunique] AS [checkbox_attribute],
[dba].[mytable].[myunique] AS [myunique],
[dba].[anothertable].[data] AS [data]
FROM [dba].[mytable]
LEFT JOIN [dba].[anothertable] ON [dba].[mytable].[someid] = [dba].[anothertable].[someid]
HAVING checkbox_attribute IN (_62V10CVJJ)
ORDER BY dba.mytable.myunique DESC
As I found out, SQLSRV has a bit different order of operations, so it doesn't know about checkbox_attribute alias:
FROMWHEREGROUP BYHAVING<-- doesn't know aboutSELECTaliasSELECTexpressions (likex AS y)DISTINCTUNIONORDER BYTOP
Quick and dirty workaround would be to wrap query into subquery like this:
SELECT * FROM (
SELECT
[dba].[mytable].[myunique] AS [checkbox_attribute],
[dba].[mytable].[myunique] AS [myunique],
[dba].[anothertable].[data] AS [data]
FROM [dba].[mytable]
LEFT JOIN [dba].[anothertable] ON [dba].[mytable].[someid] = [dba].[anothertable].[someid]
ORDER BY dba.mytable.myunique DESC
) tempdb
WHERE checkbox_attribute IN (_62V10CVJJ)
I'm not sure how to deal with it in simplified way as it would require maintaining different code for different DB engines. Anyway, I'm open to do the testing.
Contributor guide
First steps
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- Comment on the issue to say you are picking it up — it saves two people doing the same work.
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Research direction
The issue names no source file or test. Start by reproducing selected-record export with SQLSRV and trace the query generation that produces HAVING checkbox_attribute. Done means exports work on SQL Server without invalid-column errors while preserving behavior for other database engines.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- laravel, php, sql
- Domain
- databases
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100