[amaksimo]

Why

Aurora DSQL runs PostgreSQL's extended statistics statements, recursive and
check-option views, the ALTER VIEW property forms, and ALTER SEQUENCE.
dsql-lint needs structured parser output for these statements to validate
them and apply DSQL's statistics target and sequence rules.

What

• Parse CREATE, ALTER, and DROP STATISTICS, including PostgreSQL's
  statistics item forms (columns, windowless function calls, and parenthesized
  expressions) and a signed 32-bit statistics target.
• Parse RECURSIVE views, WITH [CASCADED | LOCAL] CHECK OPTION, and
  value-less view options.
• Parse the PostgreSQL ALTER VIEW property forms and ALTER SEQUENCE,
  keeping ALTER VIEW ... AS as its own statement.
• Accept AS data_type and OWNED BY anywhere in CREATE SEQUENCE and
  ALTER SEQUENCE option lists, and reject repeated clauses.
• Bump sqlparser-dsql to 0.62.12 for the linter update.

Testing

• Parser tests cover the round trip, AST, and rejected forms of each statement
  family; the independent test audit proved every changed test.
• Formatting, the all-feature suite, strict Clippy including the benchmark
  crate, and warning-denying Rustdoc pass.
• thumbv6m-none-eabi no-std check and publish dry-run pass.
• Every accepted and rejected form was checked against a live Aurora DSQL
  cluster.

References

• https://docs.aws.amazon.com/aurora-dsql/latest/userguide/create-statistics-syntax-support.html
• https://docs.aws.amazon.com/aurora-dsql/latest/userguide/alter-statistics-syntax-support.html
• https://docs.aws.amazon.com/aurora-dsql/latest/userguide/drop-statistics-syntax-support.html
• https://docs.aws.amazon.com/aurora-dsql/latest/userguide/create-view.html
• https://docs.aws.amazon.com/aurora-dsql/latest/userguide/alter-view-syntax-support.html
• https://docs.aws.amazon.com/aurora-dsql/latest/userguide/alter-sequence-syntax-support.html