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Improve SQLite3 primary key constraint parsing #24

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Merged
Schamper merged 4 commits into from
Feb 4, 2026
Merged

Improve SQLite3 primary key constraint parsing #24

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0af10a1
Fix for simple primary key constraints with multiple parts
JSCU-CNI Feb 2, 2026
059951f
Merge branch 'main' into sqlite-pk-constraint-multi-part
JSCU-CNI Feb 2, 2026
cd786be
add comment
JSCU-CNI Feb 3, 2026
4202573
fix linter
JSCU-CNI Feb 4, 2026
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8 changes: 3 additions & 5 deletions dissect/database/sqlite3/util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -134,11 +134,9 @@ def get_primary_key_from_constraint(column_type_constraint: str, column_def: str
)
matched_group = primary_key_sql.groups()[0]
primary_key_defs = list(split_sql_list(matched_group))
# We only handle single primary keys, no compound keys or
# expressions, so a single entry in the list consisting of a single
# part.
# We only handle single primary keys, no compound keys or expressions, so a single entry in the list consisting of
# a single part. For example we parse ``id`` as a primary_key in the constraint ``PRIMARY KEY("id" AUTOINCREMENT)``.
if len(primary_key_defs) == 1:
primary_key_parts = primary_key_defs[0].split(maxsplit=1)
if len(primary_key_parts) == 1:
primary_key = primary_key_parts[0]
primary_key = primary_key_parts[0].strip("'\"")
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return primary_key
15 changes: 15 additions & 0 deletions tests/sqlite3/test_util.py
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Expand Up @@ -155,6 +155,21 @@
),
id="create-table-firefox-foreign-in-column-name",
),
# Primary key constraint with multiple parts, but not a compound/composite constraint.
pytest.param(
'CREATE TABLE "example"("foo" INTEGER, "bar" TEXT NOT NULL, PRIMARY KEY("foo" AUTOINCREMENT))',
(
"foo",
[
("foo", "INTEGER"),
("bar", "TEXT NOT NULL"),
],
[
'PRIMARY KEY("foo" AUTOINCREMENT)',
],
),
id="primary-key-constraint-multiple-parts",
)
]


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