alpaylan opened a new issue, #2805:
URL: https://github.com/apache/datafusion-sqlparser-rs/issues/2805
With dialects that take the `LIKE` filter as a suffix (ClickHouse, MySQL,
Generic, ...), Display writes it after `LIMIT`, and the output reparses as a
`LIKE` inside the limit expression:
```
SHOW TABLES FROM system LIKE '%user%' LIMIT 2 (ClickHouseDialect)
-> displays as: SHOW TABLES FROM system LIMIT 2 LIKE '%user%'
-> reparses with LIMIT (2 LIKE '%user%') and no filter
SHOW DATABASES LIKE '%de%' LIMIT 2
-> displays as: SHOW DATABASES LIMIT 2 LIKE '%de%' (same AST change)
SHOW TABLES LIKE 'x%' LIMIT 2 (SnowflakeDialect,
infix filter)
-> round-trips (fine)
```
ClickHouse puts the pattern before `LIMIT`: `SHOW [FULL] [TEMPORARY] TABLES
[{FROM | IN} <db>] [[NOT] LIKE | ILIKE '<pattern>'] [LIMIT <N>] ...`
(https://clickhouse.com/docs/sql-reference/statements/show).
`parse_show_stmt_options` reads the suffix filter right after `show_in`,
before `STARTS WITH` / `LIMIT` / `FROM`, but `Display for ShowStatementOptions`
uses `"{like_in_infix}{show_in}{starts_with}{limit}{from}{like_in_suffix}"`.
Tested on main ce12f1f6 (also 0.63.0 and 0.58.0).
Found with a property-based fuzzer (round trip check); I used AI assistance
for triage and verified every case above.
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