Revision e8227a8e24422f9bcabd1b18c87cc4f3b78a72b3 authored by viktorluc-db on 05 August 2024, 12:55:49 UTC, committed by Wenchen Fan on 05 August 2024, 12:55:49 UTC
### What changes were proposed in this pull request?
Fix for approx_count_distinct not working correctly with collated strings.

### Why are the changes needed?
approx_count_distinct was not working with any collation.

### Does this PR introduce _any_ user-facing change?
No.

### How was this patch tested?
New test added to CollationSQLExpressionSuite.

### Was this patch authored or co-authored using generative AI tooling?
No.

Closes #47503 from viktorluc-db/bugfix.

Authored-by: viktorluc-db <viktor.lucic@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
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