Editing Assumptions and Dependencies (section)

== 3. Assumptions ==

{|
!width="9%"| ID
!width="15%"| Assumption
!width="18%"| Confirmed by
!width="21%"| Confirmed date
!width="25%"| Severity if wrong
!width="10%"| Status
|-
| A-01
| Prime 2 is manually inserted into the database before the first generation run. The algorithm starts at candidate 3 and immediately calls <code>next-divider</code> (ident=2), which requires a row with ident=2 to exist.
| [UNCONFIRMED]
| —
| High
| Open
|-
| A-02
| The <code>primes</code> table is empty at the start of a fresh generation run. No de-duplication logic exists in the INSERT path; re-running generation will insert duplicate primes.
| [UNCONFIRMED]
| —
| High
| Open
|-
| A-03
| The <code>asc_ident</code> sequence is reset to 1 before each generation run (achieved by running <code>reset-primes.sql</code>). If the sequence is not reset, the ident values used by the divider lookup will be wrong.
| [UNCONFIRMED]
| —
| High
| Open
|-
| A-04
| The working directory at runtime is writable by the process owner, so <code>primes.prt</code> can be created.
| [UNCONFIRMED]
| —
| High
| Open
|-
| A-05
| GnuCOBOL 4.0 and the GixSQL pre-processor are installed and on PATH before compilation.
| [UNCONFIRMED]
| —
| High
| Open
|-
| A-06
| PostgreSQL is running on <code>localhost:5432</code> when any program that calls <code>primes.cbl</code> is executed.
| [UNCONFIRMED]
| —
| High
| Open
|-
| A-07
| The PostgreSQL schema <code>primes</code> and the user <code>primes_user</code> exist and have been granted the necessary privileges before first run.
| [UNCONFIRMED]
| —
| High
| Open
|-
| A-08
| The system is run by a single operator at a time; no concurrent execution is expected.
| [UNCONFIRMED]
| —
| Medium
| Open
|-
| A-09
| The 132-character print record width matches the target printer or viewer.
| [UNCONFIRMED]
| —
| Low
| Open
|-
| A-10
| <code>primes_cbsql.out</code> (the pre-compiler listing) is a historical artefact of an earlier version of <code>primes.cbl</code> and the <code>primesdb</code> connection alias it references is no longer active.
| [UNCONFIRMED]
| —
| Medium
| Open
|}


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