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use language indexes

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This commit is contained in:
Jack Robison 2020-09-24 17:21:27 -04:00
parent 8dc654b513
commit 46dc15dd29
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1 changed files with 13 additions and 1 deletions
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14
lbry/wallet/server/db/reader.py
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@ -18,7 +18,7 @@ from lbry.schema.tags import clean_tags
from lbry.schema.result import Outputs, Censor
from lbry.wallet import Ledger, RegTestLedger
from .common import CLAIM_TYPES, STREAM_TYPES, COMMON_TAGS
from .common import CLAIM_TYPES, STREAM_TYPES, COMMON_TAGS, INDEXED_LANGUAGES
from .full_text_search import FTS_ORDER_BY
@ -536,6 +536,18 @@ def _apply_constraints_for_array_attributes(constraints, attr, cleaner, for_coun
AND tag IN ({values})
)
"""
elif attr == 'language':
indexed_languages = any_items & set(INDEXED_LANGUAGES)
if indexed_languages:
any_items -= indexed_languages
for language in indexed_languages:
any_queries[f'#_any_common_languages_{language}'] = f"""
EXISTS(
SELECT 1 FROM language INDEXED BY language_{language}_idx
WHERE {CLAIM_HASH_OR_REPOST_HASH_SQL}=language.claim_hash
AND language = '{language}'
)
"""
if any_items: