Redshift unit test limitation #5508
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runleonarun
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May 14, 2024
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@matthewshaver Just have some suggestion to smooth this message out.
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| This results in the error: |
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Suggested change
| This results in the error: | |
| The previous code results in the error: |
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Could going from "The following query" to the code example, to "the previous code" be a little redundant?
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@matthewshaver how about "This query results in the error:"
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Works for me!
Co-authored-by: Leona B. Campbell <3880403+runleonarun@users.noreply.github.com>
Co-authored-by: Leona B. Campbell <3880403+runleonarun@users.noreply.github.com>
runleonarun
reviewed
May 15, 2024
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| ## Unit test limitations | ||
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| Redshift doesn't support Unit tests when the SQL in the common table expression (CTE) contains functions such as `LISTAGG`, `MEDIAN`, `PERCENTILE_CONT`, etc. These functions must be executed against a user-created table. dbt combines given rows to be part of the CTE, which Redshift does not support. |
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@matthewshaver What I like about how the content is framed below is that it's clearer than this paragraph and it's framed in the positive. I think we should rewrite this paragraph so we:
- Communicate that unit test are limited by actually saying what they need to do to get unblocked. like "Avoid using SQL in CTE functions such as.." and "Unit tests can be used when you.."
- Explain how to overcome this limitation. Instead of the passive language of "These functions must be executed..." Use more active language like "Execute these functions against..."
matthewshaver
commented
May 15, 2024
matthewshaver
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May 15, 2024
matthewshaver
commented
May 15, 2024
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What are you changing in this pull request and why?
Closes: #5430
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