Skip to content

Expose column default in information_schema.columns table #26163

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jul 10, 2025
Merged

Expose column default in information_schema.columns table #26163

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion ...-main/src/main/java/io/trino/connector/informationschema/InformationSchemaPageSource.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -255,7 +255,7 @@ private void addColumnsRecords(QualifiedTablePrefix prefix)
tableName.getTableName(),
column.getName(),
ordinalPosition,
null,
column.getDefaultValue().orElse(null),
column.isNullable() ? "YES" : "NO",
getDisplayLabel(column.getType(), isOmitDateTimeTypePrecision(session)),
column.getComment(),
Expand Down
9 changes: 9 additions & 0 deletions plugin/trino-memory/src/test/java/io/trino/plugin/memory/TestMemoryDefaultColumnValue.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -194,6 +194,15 @@ void testTimestampWithTimeZone()
assertDefaultValue("TIMESTAMP(12) WITH TIME ZONE", "TIMESTAMP '1970-01-01 00:00:00.999999999999 UTC'");
}

@Test
void testInformationSchema()
{
try (TestTable table = newTrinoTable("test_default_value", "(id int, data int DEFAULT 123)")) {
assertThat((String) computeScalar("SELECT column_default FROM information_schema.columns WHERE table_name = '" + table.getName() + "' AND column_name = 'data'"))
.isEqualTo("123");
}
}

private void assertDefaultValue(@Language("SQL") String columnType, @Language("SQL") String defaultValue)
{
assertDefaultValue(columnType, defaultValue, defaultValue);
Expand Down