Snowflake: parse EXCLUDE column list as ObjectName to support qualified names#2244
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yoavcloud merged 3 commits intoapache:mainfrom Feb 27, 2026
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When a user writes `f.* EXCLUDE (f.col)` instead of `f.* EXCLUDE (col)`,
the parser previously consumed only the table qualifier (e.g. `f`) as the
identifier and then hit the `.` unexpectedly, producing a confusing error
like "Expected: `,` or `)`, found `.`".
This commit detects the qualified-name pattern in
`parse_optional_select_item_exclude` and returns an actionable error:
EXCLUDE does not support qualified column names,
use a plain identifier instead (e.g. EXCLUDE (account_canonical_id))
Applies to both the single-column (`EXCLUDE col`) and multi-column
(`EXCLUDE (col1, col2)`) forms.
Fixes repro: `SELECT f.* EXCLUDE (f.account_canonical_id, f.amount) FROM t AS f`
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Problem
When a user writes
f.* EXCLUDE (f.account_canonical_id, f.amount), the parser was callingparse_identifier()for each entry in the EXCLUDE list. This only consumed the table qualifier (f), then hit the.and produced a confusing error:Fix
Change
ExcludeSelectItem::SingleandExcludeSelectItem::Multipleto holdObjectNameinstead ofIdent, and updateparse_optional_select_item_excludeto callparse_object_name(false)instead ofparse_identifier().This correctly handles both plain identifiers and qualified names like
f.account_canonical_id.Changes
src/ast/query.rs—ExcludeSelectItemvariants now holdObjectNamesrc/ast/spans.rs— span impl updated to useObjectName::span()src/parser/mod.rs— parser callsparse_object_name(false)sqlparser_common.rs,sqlparser_snowflake.rs,sqlparser_duckdb.rsRepro
Now parses successfully.