Files
sql-utilities/src/Strata.SqlTools.SqlBreakdown/Classes
Thom LambandClaude Opus 4.7 f577c06558
SonarQube Analysis / sonarqube (pull_request) Successful in 4m5s
refactor(dedup): cross-dialect QueryBreakdown + StatementParser helpers (Cluster E)
Two shared scaffolds for blocks Sonar flagged across the SqlServer,
Snowflake, and PostgreSQL dialects:

1. **`AppendToClause` on `SqlBreakdownBase`** — collapses the "if
   clause is empty set it, else append `{operation} {sql}`; then merge
   comment with same rule" pattern that was repeated three times in
   each of SqlServer/Snowflake `QueryBreakdown`. The matching
   `AddWhereExpression` / `AddHavingExpression` / `AddWhereClause(string)`
   sites in both files now delegate to a single `protected static`
   helper. Operates against `ISqlClause`, so it works for both the
   `WhereClause` and `HavingClause` properties.

2. **`HandleDoubleQuoteAsIdentifier` on `SqlServer.StatementParser`** —
   PostgreSQL and Snowflake both override SqlServer's
   `HandleDoubleQuote` (which produces a string-literal token) to
   instead produce a `ColumnIdentifier` token. The two overrides had
   identical 14-line bodies. The shared logic now lives once, and
   each dialect's override is a one-liner that calls the helper.

Deliberately *not* refactored in this commit:
- The CTE WITH-clause SQL generation in SqlServer/Snowflake QueryBreakdown
  (lines ~537-560 / ~579-601 Sonar flagged) — the surrounding logic
  differs enough between the two that an extraction would obscure
  rather than clarify.
- The PG/Snowflake QueryBreakdown constructor pair (lines 40-58 /
  43-61) — only ~10 lines × 2; extracting requires either a new
  shared helper for ~20 lines of savings or moving up the inheritance
  chain, neither pays for itself.

All 1180 tests stay green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-27 16:39:36 -05:00
..
2026-05-12 08:52:33 -05:00