Support condition nesting [DATAJDBC-490]

[spring-projects-issues]

Mark Paluch opened DATAJDBC-490 and commented

We should allow grouping of conditions so conditions can be expressed as logical groups, e.g.

WHERE (person.name = 'Walter' AND person.age > 50) OR (person.name = 'Hank' AND (person.age > 40 OR person.age < 30))

Spring Data R2DBC allows nested criteria and we should isolate individual groups to not interfere with combination of AND and OR semantics

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Referenced from: pull request #193