Intent of if_not_exists

All 1 exact test in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 1 test
- server/ 1 test
  - common/ 1 test
    
    persistence/ 1 test
    
    sql/ 1 test
    
    sqlplugin/ 1 test
    
    sqlite/ 1 test
    
    TestRewriteSchemaStatements_EnforcesVarcharLengthChecks/ 1 test
    
    go.temporal.io/server/common/persistence/sql/sqlplugin/sqlite/TestRewriteSchemaStatements_EnforcesVarcharLengthChecks/if_not_exists Introduced here