Skip to content
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

feat: Add support for UUID comparison functions #10791

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

feat: Add support for UUID comparison functions #10791

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
23 changes: 23 additions & 0 deletions velox/functions/prestosql/UuidFunctions.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -20,10 +20,29 @@

#include "velox/functions/Macros.h"
#include "velox/functions/Registerer.h"
#include "velox/functions/prestosql/Comparisons.h"
#include "velox/functions/prestosql/types/UuidType.h"

namespace facebook::velox::functions {

#define VELOX_GEN_BINARY_EXPR_UUID(Name, uuidCompExpr) \
template <typename T> \
struct Name##Uuid { \
VELOX_DEFINE_FUNCTION_TYPES(T); \
\
FOLLY_ALWAYS_INLINE void \
call(bool& result, const arg_type<Uuid>& lhs, const arg_type<Uuid>& rhs) { \
result = (uuidCompExpr); \
} \
};

VELOX_GEN_BINARY_EXPR_UUID(LtFunction, (uint128_t)lhs < (uint128_t)rhs);
VELOX_GEN_BINARY_EXPR_UUID(GtFunction, (uint128_t)lhs > (uint128_t)rhs);
VELOX_GEN_BINARY_EXPR_UUID(LteFunction, (uint128_t)lhs <= (uint128_t)rhs);
VELOX_GEN_BINARY_EXPR_UUID(GteFunction, (uint128_t)lhs >= (uint128_t)rhs);

#undef VELOX_GEN_BINARY_EXPR_UUID

template <typename T>
struct UuidFunction {
VELOX_DEFINE_FUNCTION_TYPES(T);
Expand All @@ -42,6 +61,10 @@ struct UuidFunction {
inline void registerUuidFunctions(const std::string& prefix) {
registerUuidType();
registerFunction<UuidFunction, Uuid>({prefix + "uuid"});
registerFunction<LtFunctionUuid, bool, Uuid, Uuid>({prefix + "lt"});
registerFunction<GtFunctionUuid, bool, Uuid, Uuid>({prefix + "gt"});
registerFunction<LteFunctionUuid, bool, Uuid, Uuid>({prefix + "lte"});
registerFunction<GteFunctionUuid, bool, Uuid, Uuid>({prefix + "gte"});
}

} // namespace facebook::velox::functions
114 changes: 114 additions & 0 deletions velox/functions/prestosql/tests/UuidFunctionsTest.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -108,5 +108,119 @@ TEST_F(UuidFunctionsTest, unsupportedCast) {
evaluate("cast(123 as uuid())", input), "Cannot cast BIGINT to UUID.");
}

TEST_F(UuidFunctionsTest, comparisons) {
const auto uuidEval = [&](const std::optional<std::string>& lhs,
const std::string& operation,
const std::optional<std::string>& rhs) {
return evaluateOnce<bool>(
Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Can you try this version of evaluateOnce https://github.com/facebookincubator/velox/blob/main/velox/functions/prestosql/tests/utils/FunctionBaseTest.h#L241

that can override the logical type. It might reduce the casting in your expression then.

So the call would be something like
evaluateOnce<bool>(fmt::format("c0 {} c1", operation), {UUID(), UUID()}, lhs, rhs)

But of course that assumes that you are not relying on the casting to reshuffle bytes in a way that the uint128_t comparisons hold.

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

That does work, but then I would need to construct the UUIDs with boost and then convert to an int128_t to pass to the eval. I think the end result is less clear, and this way also tests the UUID casting.

fmt::format("cast(c0 as uuid) {} cast(c1 as uuid)", operation),
lhs,
rhs);
};

ASSERT_EQ(
Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Just confirming that you got the same results with Presto Java.

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Yes, I've copied these values to the Presto Java UUID tests to run and get the same results.

true,
uuidEval(
"33355449-2c7d-43d7-967a-f53cd23215ad",
"<",
"ffffffff-ffff-ffff-ffff-ffffffffffff"));
ASSERT_EQ(
aditi-pandit marked this conversation as resolved.
Show resolved Hide resolved
false,
uuidEval(
"33355449-2c7d-43d7-967a-f53cd23215ad",
"<",
"00000000-0000-0000-0000-000000000000"));
ASSERT_EQ(
true,
uuidEval(
"f768f36d-4f09-4da7-a298-3564d8f3c986",
">",
"00000000-0000-0000-0000-000000000000"));
ASSERT_EQ(
false,
uuidEval(
"f768f36d-4f09-4da7-a298-3564d8f3c986",
">",
"ffffffff-ffff-ffff-ffff-ffffffffffff"));

ASSERT_EQ(
true,
uuidEval(
"33355449-2c7d-43d7-967a-f53cd23215ad",
"<=",
"33355449-2c7d-43d7-967a-f53cd23215ad"));
ASSERT_EQ(
true,
uuidEval(
"33355449-2c7d-43d7-967a-f53cd23215ad",
"<=",
"ffffffff-ffff-ffff-ffff-ffffffffffff"));
ASSERT_EQ(
true,
uuidEval(
"33355449-2c7d-43d7-967a-f53cd23215ad",
">=",
"33355449-2c7d-43d7-967a-f53cd23215ad"));
ASSERT_EQ(
true,
uuidEval(
"ffffffff-ffff-ffff-ffff-ffffffffffff",
">=",
"33355449-2c7d-43d7-967a-f53cd23215ad"));

ASSERT_EQ(
true,
uuidEval(
"f768f36d-4f09-4da7-a298-3564d8f3c986",
"==",
"f768f36d-4f09-4da7-a298-3564d8f3c986"));
ASSERT_EQ(
true,
uuidEval(
"eed9f812-4b0c-472f-8a10-4ae7bff79a47",
"!=",
"f768f36d-4f09-4da7-a298-3564d8f3c986"));

ASSERT_EQ(
true,
uuidEval(
"11000000-0000-0022-0000-000000000000",
"<",
"22000000-0000-0011-0000-000000000000"));
ASSERT_EQ(
true,
uuidEval(
"00000000-0000-0000-2200-000000000011",
">",
"00000000-0000-0000-1100-000000000022"));
ASSERT_EQ(
false,
uuidEval(
"00000000-0000-0000-0000-000000000011",
">",
"22000000-0000-0000-0000-000000000000"));
ASSERT_EQ(
false,
uuidEval(
"11000000-0000-0000-0000-000000000000",
"<",
"00000000-0000-0000-0000-000000000022"));

std::string lhs = "12342345-3456-4567-5678-678978908901";
std::string rhs = "23451234-4567-3456-6789-567889017890";
ASSERT_EQ(true, uuidEval(lhs, "<", rhs));

for (vector_size_t i = 0; i < lhs.size(); i++) {
if (lhs[i] == '-') {
continue;
}
lhs[i] = '0';
rhs[i] = '0';
bool expected = boost::lexical_cast<boost::uuids::uuid>(lhs) <
boost::lexical_cast<boost::uuids::uuid>(rhs);
ASSERT_EQ(expected, uuidEval(lhs, "<", rhs));
}
}

} // namespace
} // namespace facebook::velox::functions::prestosql
Loading