Nikola Mandic

[SPARK-47415][SQL] Collation support: Levenshtein

2

### What changes were proposed in this pull request? Levenshtein distance requires modifications to accommodate collated inputs properly: - Allow collated inputs in `inputTypes` - Require same collations for input...

[SPARK-46841][SQL] Add collation support for ICU locales and collation specifiers

5

### What changes were proposed in this pull request? Languages and localization for collations are supported by ICU library. Collation naming format is as follows: ``` [_][_][_specifier_specifier...] ``` Locale specifier...

### What changes were proposed in this pull request? Following sequence fails: ``` > create table t(s string collate utf8_lcase) using parquet; > insert into t values ('A'); > analyze...