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Add an index to event_search

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- to make the purge API quicker
This commit is contained in:
Richard van der Hoff 2017-05-11 11:57:02 +01:00
parent 29ded770b1
commit baafb85ba4
3 changed files with 35 additions and 3 deletions
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10
synapse/storage/background_updates.py
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@ -210,7 +210,8 @@ class BackgroundUpdateStore(SQLBaseStore):
self._background_update_handlers[update_name] = update_handler
def register_background_index_update(self, update_name, index_name,
table, columns, where_clause=None):
table, columns, where_clause=None,
unique=False):
"""Helper for store classes to do a background index addition
To use:
@ -245,9 +246,11 @@ class BackgroundUpdateStore(SQLBaseStore):
c.execute(sql)
sql = (
"CREATE INDEX CONCURRENTLY %(name)s ON %(table)s"
"CREATE %(unique)s INDEX CONCURRENTLY %(name)s"
" ON %(table)s"
" (%(columns)s) %(where_clause)s"
) % {
"unique": "UNIQUE" if unique else "",
"name": index_name,
"table": table,
"columns": ", ".join(columns),
@ -270,9 +273,10 @@ class BackgroundUpdateStore(SQLBaseStore):
# down at the wrong moment - hance we use IF NOT EXISTS. (SQLite
# has supported CREATE TABLE|INDEX IF NOT EXISTS since 3.3.0.)
sql = (
"CREATE INDEX IF NOT EXISTS %(name)s ON %(table)s"
"CREATE %(unique)s INDEX IF NOT EXISTS %(name)s ON %(table)s"
" (%(columns)s)"
) % {
"unique": "UNIQUE" if unique else "",
"name": index_name,
"table": table,
"columns": ", ".join(columns),