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Check distance function in CREATE TABLE instead of first INSERT

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Robert Schulze 2023-05-25 20:51:21 +00:00
parent 03b6856556
commit 18304f5aef
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2 changed files with 14 additions and 2 deletions
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13
src/Storages/MergeTree/MergeTreeIndexAnnoy.cpp
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@ -307,7 +307,7 @@ MergeTreeIndexGranulePtr MergeTreeIndexAnnoy::createIndexGranule() const
return std::make_shared<MergeTreeIndexGranuleAnnoy<Annoy::Euclidean>>(index.name, index.sample_block);
else if (distance_function == "cosineDistance")
return std::make_shared<MergeTreeIndexGranuleAnnoy<Annoy::Angular>>(index.name, index.sample_block);
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Unknown distance name. Must be 'L2Distance' or 'cosineDistance'. Got {}", distance_function);
std::unreachable();
}
MergeTreeIndexAggregatorPtr MergeTreeIndexAnnoy::createIndexAggregator() const
@ -317,7 +317,7 @@ MergeTreeIndexAggregatorPtr MergeTreeIndexAnnoy::createIndexAggregator() const
return std::make_shared<MergeTreeIndexAggregatorAnnoy<Annoy::Euclidean>>(index.name, index.sample_block, trees);
if (distance_function == "cosineDistance")
return std::make_shared<MergeTreeIndexAggregatorAnnoy<Annoy::Angular>>(index.name, index.sample_block, trees);
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Unknown distance name. Must be 'L2Distance' or 'cosineDistance'. Got {}", distance_function);
std::unreachable();
}
MergeTreeIndexConditionPtr MergeTreeIndexAnnoy::createIndexCondition(const SelectQueryInfo & query, ContextPtr context) const
@ -357,6 +357,15 @@ void annoyIndexValidator(const IndexDescription & index, bool /* attach */)
if (index.column_names.size() != 1 || index.data_types.size() != 1)
throw Exception(ErrorCodes::INCORRECT_NUMBER_OF_COLUMNS, "Annoy indexes must be created on a single column");
/// Check that a supported metric was passed as first argument
if (!index.arguments.empty())
{
String distance_name = index.arguments[0].get<String>();
if (distance_name != "L2Distance" && distance_name != "cosineDistance")
throw Exception(ErrorCodes::INCORRECT_DATA, "Annoy index supports only distance functions 'L2Distance' and 'cosineDistance'. Given distance function: {}", distance_name);
}
/// Check data type of indexed column:
auto throw_unsupported_underlying_column_exception = [](DataTypePtr data_type)

3
tests/queries/0_stateless/02354_annoy_index.sql
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@ -24,3 +24,6 @@ CREATE TABLE tab(id Int32, embedding Float32, INDEX annoy_index embedding TYPE a
CREATE TABLE tab(id Int32, embedding Array(Float64), INDEX annoy_index embedding TYPE annoy()) ENGINE = MergeTree ORDER BY id; -- { serverError ILLEGAL_COLUMN }
CREATE TABLE tab(id Int32, embedding LowCardinality(Float32), INDEX annoy_index embedding TYPE annoy()) ENGINE = MergeTree ORDER BY id; -- { serverError ILLEGAL_COLUMN }
CREATE TABLE tab(id Int32, embedding Nullable(Float32), INDEX annoy_index embedding TYPE annoy()) ENGINE = MergeTree ORDER BY id; -- { serverError ILLEGAL_COLUMN }
-- reject unsupported distance functions
CREATE TABLE tab(id Int32, embedding Array(Float32), INDEX annoy_index embedding TYPE annoy('wormholeDistance')) ENGINE = MergeTree ORDER BY id; -- { serverError INCORRECT_DATA }