Continuations: LIKE operation fails with continuations

[ohadzeliger]

Forcing continuations on a query with LIKE causes the query to fail
Steps To Reproduce:

1. Look at like.yamsql

2. Force continuations on the test:

   • query: select * from A WHERE A1 LIKE '%abc%'
   • unorderedResult: [
     {'abcdefghijklmnopqrstuvwxyz'},
     {'___abcdef'},
     {'%%abcdef'},
     {'*abcdef'},
     {'(abcdefghijk)'},
     {'[abcdefghijk]'},
     {'{abcdefghijk}'}]

3. The test will fail with:
   Caused by: com.apple.foundationdb.relational.api.exceptions.ContextualSQLException: com.apple.foundationdb.record.RecordCoreException: com.apple.foundationdb.record.query.plan.cascades.SemanticException: The like operator expects an escape character of length 1.

4. Note: This is hard to reproduce without using the force continuations feature because of the unordered result. Potentially, ignoring the verification of the results can cause the continuations to be queried and reproduce the failure.