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17 lines
540 B
Python
17 lines
540 B
Python
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from infi.clickhouse_orm import *
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class Fragment(Model):
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language = LowCardinalityField(StringField(), default='EN')
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document = LowCardinalityField(StringField())
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idx = UInt64Field()
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word = StringField()
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stem = StringField()
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# An index for faster search by document and fragment idx
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index = Index((document, idx), type=Index.minmax(), granularity=1)
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# The primary key allows efficient lookup of stems
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engine = MergeTree(order_by=(stem, document, idx), partition_key=('language',))
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