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Rename instead of drop/create

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This commit is contained in:
Matthias Voppichler 2018-05-12 10:29:10 +02:00
parent 81ee6f8265
commit f5ff6ceead
1 changed files with 1 additions and 3 deletions
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4
freqtrade/persistence.py
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@ -73,9 +73,7 @@ def check_migrate(engine) -> None:
if not has_column(cols, 'fee_open'): if not has_column(cols, 'fee_open'):
# Schema migration necessary # Schema migration necessary
engine.execute("drop table if exists trades_bak") engine.execute("alter table trades rename to trades_bak")
engine.execute("create table trades_bak as select * from trades")
engine.execute("drop table if exists trades")
# let SQLAlchemy create the schema as required # let SQLAlchemy create the schema as required
_DECL_BASE.metadata.create_all(engine) _DECL_BASE.metadata.create_all(engine)