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Intern table column names once
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@ -18,7 +18,6 @@ from synapse.api.errors import StoreError
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from synapse.util.logcontext import LoggingContext, PreserveLoggingContext
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from synapse.util.caches.dictionary_cache import DictionaryCache
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from synapse.util.caches.descriptors import Cache
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from synapse.util.caches import intern_dict
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from synapse.storage.engines import PostgresEngine
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import synapse.metrics
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@ -356,9 +355,9 @@ class SQLBaseStore(object):
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Returns:
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A list of dicts where the key is the column header.
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"""
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col_headers = list(column[0] for column in cursor.description)
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col_headers = list(intern(column[0]) for column in cursor.description)
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results = list(
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intern_dict(dict(zip(col_headers, row))) for row in cursor.fetchall()
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dict(zip(col_headers, row)) for row in cursor.fetchall()
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)
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return results
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